{"id":6346,"date":"2026-10-01T05:56:59","date_gmt":"2026-10-01T05:56:59","guid":{"rendered":"https:\/\/www.pipetechservice.com\/?p=6346"},"modified":"2026-10-01T05:57:02","modified_gmt":"2026-10-01T05:57:02","slug":"directional-boring-vs-horizontal-directional-drilling","status":"publish","type":"post","link":"https:\/\/www.pipetechservice.com\/vi\/directional-boring-vs-horizontal-directional-drilling\/","title":{"rendered":"Khoan \u0111\u1ecbnh h\u01b0\u1edbng so v\u1edbi khoan ngang \u0111\u1ecbnh h\u01b0\u1edbng: C\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0o kh\u00f4ng?"},"content":{"rendered":"<div class=\"answer-box\">\n<p><strong>\u1ede h\u1ea7u h\u1ebft c\u00e1c th\u1ecb tr\u01b0\u1eddng, vi\u1ec7c so s\u00e1nh gi\u1eefa khoan \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 khoan ngang \u0111\u1ecbnh h\u01b0\u1edbng kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 \u0111\u1ed1i \u0111\u1ea7u gi\u1eefa hai ph\u01b0\u01a1ng ph\u00e1p \u2013 c\u1ea3 hai \u0111\u1ec1u l\u00e0 c\u00f9ng m\u1ed9t k\u1ef9 thu\u1eadt khoan kh\u00f4ng \u0111\u00e0o r\u00e3nh, c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n h\u01b0\u1edbng v\u00e0 \u0111\u01b0\u1ee3c kh\u1edfi \u0111\u1ed9ng t\u1eeb b\u1ec1 m\u1eb7t, v\u00e0 hai t\u00ean g\u1ecdi n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng thay th\u1ebf cho nhau.<\/strong> S\u1ef1 kh\u00e1c bi\u1ec7t th\u1ef1c s\u1ef1 c\u00f3 \u00fd ngh\u0129a ch\u00ednh l\u00e0 ph\u1ea1m vi \u1ee9ng d\u1ee5ng. K\u1ef9 thu\u1eadt khoan \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c c\u00f4ng tr\u00ecnh ti\u1ec7n \u00edch quy m\u00f4 nh\u1ecf, vi\u1ec5n th\u00f4ng v\u00e0 d\u1ecbch v\u1ee5; trong khi k\u1ef9 thu\u1eadt khoan ngang \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u01b0\u1ee3c d\u00f9ng cho c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 chi\u1ec1u d\u00e0i l\u1edbn h\u01a1n, \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n v\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh v\u01b0\u1ee3t s\u00f4ng, \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1c b\u1ed9 gi\u00e0n khoan c\u1ee1 trung (midi) v\u00e0 c\u1ee1 l\u1edbn (maxi).<\/p>\n<\/div>\n<nav class=\"toc\" aria-label=\"Table of contents\">\n<p class=\"toc-title\">Tr\u00ean trang n\u00e0y:<\/p>\n<ol>\n<li><a href=\"#what-the-terms-mean\">\u00dd ngh\u0129a c\u1ee7a c\u00e1c thu\u1eadt ng\u1eef n\u00e0y<\/a><\/li>\n<li><a href=\"#regional-usage\">C\u00e1ch s\u1eed d\u1ee5ng theo khu v\u1ef1c<\/a><\/li>\n<li><a href=\"#methods-not-hdd\">C\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00f4ng s\u1eed d\u1ee5ng \u1ed5 c\u1ee9ng (HDD)<\/a><\/li>\n<li><a href=\"#what-differs\">\u0110i\u1ec1u g\u00ec th\u1ef1c s\u1ef1 kh\u00e1c bi\u1ec7t<\/a><\/li>\n<li><a href=\"#utility-vs-pipeline\">H\u1ee3p \u0111\u1ed3ng d\u1ecbch v\u1ee5 c\u00f4ng \u00edch so v\u1edbi h\u1ee3p \u0111\u1ed3ng \u0111\u01b0\u1eddng \u1ed1ng<\/a><\/li>\n<li><a href=\"#wording-and-bids\">N\u1ed9i dung v\u00e0 h\u1ed3 s\u01a1 d\u1ef1 th\u1ea7u<\/a><\/li>\n<li><a href=\"#scope-checklist\">Danh s\u00e1ch ki\u1ec3m tra ph\u1ea1m vi<\/a><\/li>\n<li><a href=\"#scope-of-application\">Ph\u1ea1m vi \u00e1p d\u1ee5ng<\/a><\/li>\n<li><a href=\"#by-project-role\">Theo vai tr\u00f2 trong d\u1ef1 \u00e1n<\/a><\/li>\n<li><a href=\"#faq\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#key-takeaways\">Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n l\u01b0u \u00fd<\/a><\/li>\n<\/ol>\n<\/nav>\n<p>Hai thu\u1eadt ng\u1eef n\u00e0y \u0111\u1ec1u d\u00f9ng \u0111\u1ec3 ch\u1ec9 c\u00f9ng m\u1ed9t k\u1ef9 thu\u1eadt ph\u00f3ng t\u1eeb m\u1eb7t \u0111\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u h\u01b0\u1edbng. C\u00e2u h\u1ecfi c\u1ea7n \u0111\u1eb7t ra l\u00e0 c\u00e1c thu\u1eadt ng\u1eef n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ph\u1ea1m vi n\u00e0o: h\u1ec7 th\u1ed1ng gi\u00e0n khoan c\u1ee1 mini ho\u1eb7c midi v\u00e0 m\u1ee9c gi\u00e1 t\u00ednh theo m\u1ed7i l\u1ea7n khoan l\u1ed7 trong c\u00e1c d\u1ef1 \u00e1n \u0111i\u1ec7n l\u1ef1c v\u00e0 vi\u1ec5n th\u00f4ng, hay h\u1ec7 th\u1ed1ng gi\u00e0n khoan c\u1ee1 midi ho\u1eb7c maxi k\u1ebft h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng d\u1eabn h\u01b0\u1edbng b\u1eb1ng d\u00e2y c\u00e1p ho\u1eb7c con quay h\u1ed3i chuy\u1ec3n v\u00e0 m\u1ee9c gi\u00e1 t\u00ednh theo m\u1ed7i l\u1ea7n v\u01b0\u1ee3t qua trong c\u00e1c d\u1ef1 \u00e1n \u0111\u01b0\u1eddng \u1ed1ng.<\/p>\n<figure><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.pipetechservice.com\/wp-content\/uploads\/2026\/10\/directional-boring-vs-horizontal-directional-drilling-cover.jpg\" alt=\"Directional boring and horizontal directional drilling shown as one steerable trenchless method, with a small utility rig beside a large maxi pipeline rig\" width=\"1200\" height=\"630\" \/><figcaption>H\u00ecnh 1. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p, hai t\u00ean g\u1ecdi tr\u00ean th\u1ecb tr\u01b0\u1eddng: c\u00f9ng m\u1ed9t l\u1ed7 khoan c\u00f3 th\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng \u1edf quy m\u00f4 ti\u1ec7n \u00edch v\u00e0 quy m\u00f4 maxi.<\/figcaption><\/figure>\n<h2 id=\"what-the-terms-mean\">Khoan \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 khoan ngang \u0111\u1ecbnh h\u01b0\u1edbng th\u1ef1c s\u1ef1 l\u00e0 g\u00ec?<\/h2>\n<p>C\u1ea3 hai thu\u1eadt ng\u1eef n\u00e0y \u0111\u1ec1u d\u00f9ng \u0111\u1ec3 ch\u1ec9 m\u1ed9t quy tr\u00ecnh thao t\u00e1c: m\u1ed9t gi\u00e0n khoan tr\u00ean m\u1eb7t \u0111\u1ea5t ph\u00f3ng \u0111\u1ea7u khoan c\u00f3 th\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng, di chuy\u1ec3n theo m\u1ed9t qu\u1ef9 \u0111\u1ea1o \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf s\u1eb5n d\u01b0\u1edbi ch\u01b0\u1edbng ng\u1ea1i v\u1eadt, nong l\u1ed7 khoan cho \u0111\u1ebfn khi \u0111\u1ea1t k\u00edch th\u01b0\u1edbc y\u00eau c\u1ea7u, v\u00e0 k\u00e9o \u1ed1ng d\u1eabn s\u1ea3n ph\u1ea9m tr\u1edf l\u1ea1i.<\/p>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ho\u00e0n to\u00e0n gi\u1ed1ng nhau: m\u1ed9t \u0111\u01b0\u1eddng cung c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh h\u01b0\u1edbng t\u1eeb b\u1ec1 m\u1eb7t<\/h3>\n<p>C\u00f3 ba \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt:<\/p>\n<ul>\n<li>L\u1ed7 khoan c\u00f3 th\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng \u0111\u01b0\u1ee3c, do \u0111\u00f3 \u0111\u01b0\u1eddng \u0111i c\u1ee7a l\u1ed7 khoan c\u00f3 th\u1ec3 \u0111i theo m\u1ed9t \u0111\u01b0\u1eddng cong \u0111\u00e3 thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111i qua d\u01b0\u1edbi ch\u01b0\u1edbng ng\u1ea1i v\u1eadt.<\/li>\n<li>Gi\u00e0n khoan v\u1eabn \u1edf tr\u00ean m\u1eb7t n\u01b0\u1edbc, n\u00ean kh\u00f4ng c\u1ea7n gi\u1ebfng ph\u00f3ng.<\/li>\n<li>\u0110\u01b0\u1eddng \u1ed1ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p k\u00e9o ng\u01b0\u1ee3c thay v\u00ec ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea9y.<\/li>\n<\/ul>\n<p>C\u00e1c h\u01b0\u1edbng d\u1eabn v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o ti\u00eau chu\u1ea9n c\u1ee7a NASTT coi hai t\u00ean g\u1ecdi n\u00e0y l\u00e0 c\u00f9ng m\u1ed9t k\u1ef9 thu\u1eadt. Khi c\u00e1c \u0111\u1ecbnh ngh\u0129a c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t, \u0111\u00f3 l\u00e0 do c\u00e1ch nh\u1ea5n m\u1ea1nh \u2013 m\u1ed9t t\u00ean g\u1ecdi ch\u1ec9 h\u00e0nh \u0111\u1ed9ng, t\u00ean g\u1ecdi kia ch\u1ec9 nh\u00f3m thi\u1ebft b\u1ecb \u2013 ch\u1ee9 kh\u00f4ng ph\u1ea3i do c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h3>Ai n\u00f3i \u0111\u1ebfn khoan \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 ai n\u00f3i \u0111\u1ebfn HDD?<\/h3>\n<p>C\u00e1ch s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c ph\u00e2n chia theo th\u1ecb tr\u01b0\u1eddng, ch\u1ee9 kh\u00f4ng ph\u1ea3i theo khu v\u1ef1c \u0111\u1ecba l\u00fd. C\u00e1c \u0111\u01a1n v\u1ecb trong l\u0129nh v\u1ef1c ti\u1ec7n \u00edch, vi\u1ec5n th\u00f4ng v\u00e0 c\u00f4ng tr\u00ecnh \u0111\u01b0\u1eddng ph\u1ed1 \u0111\u00f4 th\u1ecb th\u01b0\u1eddng g\u1ecdi l\u00e0 \u201ckhoan \u0111\u1ecbnh h\u01b0\u1edbng\u201d v\u00e0 \u0111o b\u1eb1ng feet \u0111\u01b0\u1eddng khoan; trong khi c\u00e1c ch\u1ee7 \u0111\u1ea7u t\u01b0 trong l\u0129nh v\u1ef1c d\u1ea7u kh\u00ed v\u00e0 truy\u1ec1n t\u1ea3i n\u01b0\u1edbc l\u1ea1i g\u1ecdi l\u00e0 \u201ckhoan ngang \u0111\u1ecbnh h\u01b0\u1edbng\u201d v\u00e0 \u0111o b\u1eb1ng s\u1ed1 \u0111i\u1ec3m v\u01b0\u1ee3t qua.<\/p>\n<p>Ti\u00eau ch\u00ed ph\u00e2n bi\u1ec7t l\u00e0 \u0111\u01a1n v\u1ecb t\u00ednh gi\u00e1: d\u1ecbch v\u1ee5 khoan \u0111\u1ecbnh h\u01b0\u1edbng th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ednh gi\u00e1 theo m\u1ed7i foot \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 khoan; c\u00f2n d\u1ecbch v\u1ee5 khoan \u0111\u1ecbnh h\u01b0\u1edbng ngang (HDD) \u0111\u01b0\u1ee3c t\u00ednh gi\u00e1 theo m\u1ed7i \u0111i\u1ec3m v\u01b0\u1ee3t qua k\u00e8m theo b\u1ea3n v\u1ebd m\u1eb7t b\u1eb1ng khoan.<\/p>\n<h2 id=\"regional-usage\">\u1ee8ng d\u1ee5ng theo khu v\u1ef1c v\u00e0 ng\u00e0nh: Khoan l\u1ed7, khoan l\u1ed7 b\u1eb1ng \u0111\u1ea1n v\u00e0 khoan \u0111\u1ea9y<\/h2>\n<p>Khi trong m\u1ed9t d\u1ef1 \u00e1n x\u1ea3y ra tranh c\u00e3i gi\u1eefa ph\u01b0\u01a1ng ph\u00e1p khoan \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p khoan ngang \u0111\u1ecbnh h\u01b0\u1edbng, th\u01b0\u1eddng th\u00ec m\u1ed9t trong nh\u1eefng thu\u1eadt ng\u1eef \u00edt \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn n\u00e0y ch\u00ednh l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra tranh c\u00e3i.<\/p>\n<div class=\"table-scroll\">\n<table>\n<caption>B\u1ea3ng 1. C\u00e1c t\u00ean g\u1ecdi th\u00f4ng d\u1ee5ng c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ph\u00e1p khoan kh\u00f4ng \u0111\u00e0o h\u00e0o, n\u01a1i ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 c\u00e1ch m\u1ed7i t\u00ean c\u00f3 th\u1ec3 b\u1ecb hi\u1ec3u nh\u1ea7m<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Thu\u1eadt ng\u1eef<\/th>\n<th scope=\"col\">\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2u<\/th>\n<th scope=\"col\">\u1ede \u0111\u00f3, \u0111i\u1ec1u \u0111\u00f3 th\u01b0\u1eddng c\u00f3 ngh\u0129a l\u00e0 g\u00ec<\/th>\n<th scope=\"col\">Nguy c\u01a1 hi\u1ec3u sai<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Khoan \u0111\u1ecbnh h\u01b0\u1edbng<\/td>\n<td>C\u00e1c d\u1ef1 \u00e1n v\u1ec1 ti\u1ec7n \u00edch, vi\u1ec5n th\u00f4ng v\u00e0 h\u1ea1 t\u1ea7ng \u0111\u00f4 th\u1ecb, B\u1eafc M\u1ef9<\/td>\n<td>Ph\u01b0\u01a1ng ph\u00e1p ph\u00f3ng t\u1eeb m\u1eb7t \u0111\u1ea5t c\u00f3 th\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng, th\u01b0\u1eddng bao g\u1ed3m m\u1ed9t gi\u00e0n khoan nh\u1ecf v\u00e0 gi\u1ebfng khoan ng\u1eafn<\/td>\n<td>\u0110\u1ecdc nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c so v\u1edbi \u1ed5 c\u1ee9ng (HDD)<\/td>\n<\/tr>\n<tr>\n<td>Khoan \u0111\u1ecbnh h\u01b0\u1edbng<\/td>\n<td>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh v\u00e0 b\u1edfi c\u00e1c nh\u00e0 cung c\u1ea5p<\/td>\n<td>C\u00f9ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u h\u01b0\u1edbng, nh\u01b0ng c\u0169ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho khoan d\u1ecdc trong c\u00e1c m\u1ecf d\u1ea7u<\/td>\n<td>C\u00f3 \u00fd ngh\u0129a m\u01a1 h\u1ed3 khi kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ed1i c\u1ea3nh c\u00f4ng ngh\u1ec7 kh\u00f4ng \u0111\u00e0o h\u00e0o<\/td>\n<\/tr>\n<tr>\n<td>Khoan \u0111\u1ecbnh h\u01b0\u1edbng ngang (HDD)<\/td>\n<td>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1ec1 \u0111\u01b0\u1eddng \u1ed1ng, n\u0103ng l\u01b0\u1ee3ng v\u00e0 k\u1ef9 thu\u1eadt<\/td>\n<td>C\u00f9ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u01b0\u1edbi d\u1ea1ng m\u1ed9t c\u00f4ng tr\u00ecnh giao c\u1eaft<\/td>\n<td>\u0110\u01b0\u1ee3c cho l\u00e0 ng\u1ee5 \u00fd m\u1ed9t gi\u00e0n khoan quy m\u00f4 l\u1edbn v\u00e0 ng\u00e2n s\u00e1ch d\u1ed3i d\u00e0o<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u01b0\u1eddng k\u00ednh l\u1ed7<\/td>\n<td>T\u1ea5t c\u1ea3 c\u00e1c th\u1ecb tr\u01b0\u1eddng<\/td>\n<td>M\u1ed9t l\u1ed7 khoan, ho\u1eb7c n\u00f3i chung l\u00e0 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t<\/td>\n<td>Confusion between the hole and the pipe<\/td>\n<\/tr>\n<tr>\n<td>Bore shot<\/td>\n<td>Utility and telecom contracts<\/td>\n<td>One completed bore between two designated points<\/td>\n<td>Mistaken for a single drilling pass<\/td>\n<\/tr>\n<tr>\n<td>Thrust boring<\/td>\n<td>UK, Australia and parts of Europe<\/td>\n<td>Unsteerable push of a casing behind an auger head<\/td>\n<td>Treated as a synonym for HDD<\/td>\n<\/tr>\n<tr>\n<td>Jack and bore<\/td>\n<td>North American highway and rail crossings<\/td>\n<td>Auger boring: a straight, unsteerable drive in a steel casing<\/td>\n<td>Grouped with directional boring<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<figure><img decoding=\"async\" src=\"https:\/\/www.pipetechservice.com\/wp-content\/uploads\/2026\/10\/directional-boring-vs-hdd-terminology-map.jpg\" alt=\"Terminology map grouping directional boring, directional drilling and HDD as one steerable method and separating thrust boring, auger boring, pipe ramming and microtunneling as different methods\" width=\"800\" height=\"600\" \/><figcaption>Figure 2. Several names for one method on the left; genuinely different methods on the right.<\/figcaption><\/figure>\n<h2 id=\"methods-not-hdd\">Words That Are Not HDD: Auger Boring, Pipe Ramming, Microtunneling and Direct Pipe<\/h2>\n<p>The problem is not only two names for one method. Names for different methods are used loosely alongside it, so a scope can specify two incompatible techniques at once. The <a href=\"https:\/\/www.pipetechservice.com\/vi\/trenchless-technologies\/\" target=\"_blank\" rel=\"noopener\">trenchless technologies<\/a> family contains all of them.<\/p>\n<p>The test is steering. A machine that can correct line and grade as it advances is HDD or microtunneling, the latter guided by ASCE 36-15. One that cannot is auger boring, thrust boring or pipe ramming.<\/p>\n<div class=\"table-scroll\">\n<table>\n<caption>Table 2. Methods frequently confused with HDD, and the risk each carries<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Ph\u01b0\u01a1ng ph\u00e1p<\/th>\n<th scope=\"col\">How it advances<\/th>\n<th scope=\"col\">Steerable<\/th>\n<th scope=\"col\">Typical use<\/th>\n<th scope=\"col\">Primary risk or limit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Directional boring \/ HDD<\/td>\n<td>Steered pilot bore, reaming passes, pipe pulled back along a curve<\/td>\n<td>Yes, along a designed arc<\/td>\n<td>Pressure pipes, conduits, cables, long crossings<\/td>\n<td>Fluid loss to surface, bore collapse in loose ground, pullback overload<\/td>\n<\/tr>\n<tr>\n<td>Auger boring, thrust boring, jack and bore<\/td>\n<td>Casing pushed behind a rotating auger head from a drive pit<\/td>\n<td>No, effectively straight<\/td>\n<td>Road, rail and embankment crossings<\/td>\n<td>No curve tolerance, boulders obstruct the casing, needs two pits<\/td>\n<\/tr>\n<tr>\n<td>Pipe ramming<\/td>\n<td>Casing driven by percussive impact, spoil removed from the casing<\/td>\n<td>No<\/td>\n<td>Short crossings in stable ground<\/td>\n<td>Ground disturbance near structures, depth limited<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.pipetechservice.com\/vi\/microtunneling\/\" target=\"_blank\" rel=\"noopener\">Microtunneling construction<\/a><\/td>\n<td>Remotely controlled machine with face support, pipe jacked from a shaft<\/td>\n<td>Yes, to tight line and grade<\/td>\n<td>Gravity sewers, large-diameter crossings<\/td>\n<td>Two engineered shafts, larger site, higher relative bid<\/td>\n<\/tr>\n<tr>\n<td>Direct pipe<\/td>\n<td>Face-supported machine pushed with one continuous pipe string from the surface<\/td>\n<td>Yes, along a designed path<\/td>\n<td>Long, large-diameter crossings under levees and rivers<\/td>\n<td>Narrow equipment availability, thrust limits on very long drives<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>We have seen tenders showing a curved HDD alignment while the specification asked for thrust boring. The two cannot both be satisfied.<\/p>\n<h2 id=\"what-differs\">Directional Boring vs Horizontal Directional Drilling: What Actually Differs<\/h2>\n<p>Once the vocabulary is separated, directional boring vs horizontal directional drilling resolves into scale, market and contract language. The technique is shared; what changes is bore size, who pays, and how the work is described and measured.<\/p>\n<h3>Scale and rig class: the difference that is real<\/h3>\n<p>Rig class drives the rest. A mini rig pulls a service duct under a street; a maxi rig pulls welded steel under a river. Class sets feasible diameter, bore length, guidance, fluid volume and crew, and therefore the price structure.<\/p>\n<div class=\"table-scroll\">\n<table>\n<caption>Table 3. The two segments behind the two names<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Dimension<\/th>\n<th scope=\"col\">Utility directional boring<\/th>\n<th scope=\"col\">Pipeline and crossing HDD<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Scale of works<\/td>\n<td>Service laterals, fibre, cable ducts, small services<\/td>\n<td>Transmission mains, river, highway and levee crossings<\/td>\n<\/tr>\n<tr>\n<td>Rig class<\/td>\n<td>Mini, occasionally midi<\/td>\n<td>Midi and maxi, often with a dedicated mud plant<\/td>\n<\/tr>\n<tr>\n<td>Typical diameter<\/td>\n<td>About 50-250 mm (2-10 in.)<\/td>\n<td>About 300-1,200 mm (12-48 in.) and above for casing work<\/td>\n<\/tr>\n<tr>\n<td>Typical bore length<\/td>\n<td>Tens of metres to a few hundred metres, in linked shots<\/td>\n<td>Several hundred metres to 1,800 m and beyond in one bore<\/td>\n<\/tr>\n<tr>\n<td>Guidance<\/td>\n<td>Walkover locating, practical to about 9-12 m depth<\/td>\n<td>Wireline or gyroscopic steering on deep, long bores<\/td>\n<\/tr>\n<tr>\n<td>Market and buyer<\/td>\n<td>Telecom and utility contractors, municipalities, developers<\/td>\n<td>Pipeline owners, EPC firms, midstream and water authorities<\/td>\n<\/tr>\n<tr>\n<td>Contract vocabulary<\/td>\n<td>Per foot or per shot, with a mobilisation minimum<\/td>\n<td>Lump sum per crossing, priced risk items, bore plan and as-built<\/td>\n<\/tr>\n<tr>\n<td>Cost reference<\/td>\n<td>Roughly USD 6-40 per foot in moderate soil, per published guides<\/td>\n<td>Priced per crossing, well above utility rates on long or large work<\/td>\n<\/tr>\n<tr>\n<td><strong>Primary risk<\/strong><\/td>\n<td>Utility strikes, shallow fluid loss, alignment drift on short bores<\/td>\n<td>Inadvertent returns, bore instability, pullback overload, settlement and permit conditions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Cost figures are published ranges, not quotations. Soil, rock, access, restoration and permits move them further than any rig difference does.<\/p>\n<h3>The rig-class envelopes in one table<\/h3>\n<p>The mini, midi and maxi classification comes from the trenchless guidance literature and is the simplest way to align a scope with a machine. Treat these as typical published envelopes, not hard limits.<\/p>\n<div class=\"table-scroll\">\n<table>\n<caption>Table 4. Typical HDD rig class envelopes (summary)<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Class<\/th>\n<th scope=\"col\">Typical pullback<\/th>\n<th scope=\"col\">Typical diameter<\/th>\n<th scope=\"col\">Typical bore length<\/th>\n<th scope=\"col\">Typical work<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Mini<\/td>\n<td>Up to about 20,000 lb (about 9 tonnes)<\/td>\n<td>About 50-250 mm (2-10 in.)<\/td>\n<td>Tens of metres to a few hundred metres<\/td>\n<td>Service laterals, fibre, cable ducts<\/td>\n<\/tr>\n<tr>\n<td>Midi<\/td>\n<td>About 20,000-100,000 lb<\/td>\n<td>About 150-600 mm (6-24 in.)<\/td>\n<td>Several hundred metres<\/td>\n<td>Water and gas mains, larger ducts, urban crossings<\/td>\n<\/tr>\n<tr>\n<td>Maxi<\/td>\n<td>Above about 100,000 lb<\/td>\n<td>About 300-1,200 mm (12-48 in.) and larger<\/td>\n<td>Up to 1,800 m and beyond<\/td>\n<td>River, highway and levee crossings, transmission pipelines<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>These ranges follow Federal Highway Administration utility guidance, the HDD Consortium good practices material and the NASTT mini, midi and maxi class structure. They are consistent with ASTM F1962 for maxi installation of polyethylene pipe and ASCE Manual of Practice 108 for pipeline design by HDD.<\/p>\n<h2 id=\"utility-vs-pipeline\">What a Bore Means in a Utility Contract vs a Pipeline Contract<\/h2>\n<p>The word bore is where pricing arguments start, because it is measured and paid differently in the two markets. This is the commercial edge of the directional boring vs horizontal directional drilling distinction.<\/p>\n<h3>Bore and bore shot in utility language<\/h3>\n<p>In utility work, a bore shot is one completed bore between two defined points, normally the entry and exit pits. A cable route is a chain of shots, each with its own pit and restoration scope.<\/p>\n<p>Our field teams record each shot separately: the unit price is per shot, so a shot crossing a railway, a rock band or a congested duct bank carries a different rate from one in clean soil.<\/p>\n<p>Utility scopes also price in feet of bore with a mobilisation minimum: three 30 m shots on one street can cost more than a single 100 m shot.<\/p>\n<h3>Lump sum per crossing in pipeline language<\/h3>\n<p>Pipeline work is normally priced per crossing. The scope is defined by a bore plan giving:<\/p>\n<ul>\n<li>Entry and exit coordinates.<\/li>\n<li>Design profile and depth of cover.<\/li>\n<li>Minimum bend radius.<\/li>\n<li>Reamed hole diameter, typically about 1.2-1.5 times the product pipe outside diameter.<\/li>\n<\/ul>\n<p>Because the crossing is a lump sum, ground risk becomes the commercial question: differing site conditions clauses, the geotechnical baseline, and who carries the cost of an inadvertent return.<\/p>\n<p>We have seen two bids for a 900 m river crossing differ by more than 30 percent because one priced an unqualified lump sum and the other priced a stated geotechnical baseline.<\/p>\n<h2 id=\"wording-and-bids\">How the Wording Changes a Specification or a Bid<\/h2>\n<p>The label a document uses sets expectations that bidders price. Most of the cost consequence of the directional boring vs horizontal directional drilling wording sits on page one.<\/p>\n<ul>\n<li><strong>Mobilisation is priced twice, or not at all.<\/strong> Utility pricing assumes a trailer-mounted rig arriving in a day; pipeline pricing assumes a multi-trailer spread, mud plant, pipe string and compound.<\/li>\n<li><strong>Tolerances are left unstated.<\/strong> Utility bores often accept generous tolerance; pipeline crossings may specify line and grade control and a minimum bend radius.<\/li>\n<li><strong>Deliverables are ambiguous.<\/strong> A utility bore delivers an installed duct and a path record; a pipeline crossing delivers a bore plan, daily drilling records, fluid records and an as-built survey. Citing ASCE Manual of Practice 108 or ASTM F1962 in the scope settles that list.<\/li>\n<li><strong>Risk sits with whoever was silent.<\/strong> Inadvertent return, fluid and spoil disposal, utility strikes and pit restoration are cost lines a silent scope leaves unpriced.<\/li>\n<\/ul>\n<p>On crossings we have supported, the most effective correction to a draft scope is replacing one unqualified method name with the class, diameter, length, guidance and deliverable list it implied.<\/p>\n<h2 id=\"scope-checklist\">A Scope-of-Work Checklist So the Term Cannot Be Misread<\/h2>\n<h3>How do I write a scope that cannot be misread as the wrong method?<\/h3>\n<p>Use the items below as a drafting checklist. If each line is answered, a bidder cannot reasonably read the scope as anything but what is intended.<\/p>\n<div class=\"table-scroll\">\n<table>\n<caption>Table 5. Scope-of-work checklist for a directional boring or HDD package<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Item to write<\/th>\n<th scope=\"col\">What to state<\/th>\n<th scope=\"col\">Why it removes ambiguity<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Method definition<\/td>\n<td>A steerable, surface-launched bore with pilot hole, reaming and pullback<\/td>\n<td>Confirms the words mean this method and exclude auger or thrust boring<\/td>\n<\/tr>\n<tr>\n<td>Rig class expectation<\/td>\n<td>Minimum pullback capacity and fluid handling capability, not just a name<\/td>\n<td>Prevents a mini rig being offered against a midi-scale crossing<\/td>\n<\/tr>\n<tr>\n<td>Diameter and material<\/td>\n<td>Product pipe outside diameter, wall thickness, material and reamed hole ratio<\/td>\n<td>Fixes the pullback load and the reaming passes required<\/td>\n<\/tr>\n<tr>\n<td>Length and shot breakdown<\/td>\n<td>Total length and whether it is one bore or a list of shots<\/td>\n<td>Settles whether the contract is one crossing or a per-shot schedule<\/td>\n<\/tr>\n<tr>\n<td>Depth and cover<\/td>\n<td>Minimum depth of cover, plus scour or future works allowance<\/td>\n<td>Prevents a cheaper, shallower bid that is non-compliant<\/td>\n<\/tr>\n<tr>\n<td>Guidance requirement<\/td>\n<td>Walkover, wireline or gyro, and the survey record to be submitted<\/td>\n<td>Makes depth-related risk explicit before it is priced<\/td>\n<\/tr>\n<tr>\n<td>Fluid management<\/td>\n<td>Source water, recycling, containment, spoil handling and disposal responsibility<\/td>\n<td>Names a major cost line that is otherwise left to interpretation<\/td>\n<\/tr>\n<tr>\n<td>Tolerances<\/td>\n<td>Alignment and grade tolerance, minimum bend radius, and how deviation is measured<\/td>\n<td>Converts a quality expectation into a verifiable requirement<\/td>\n<\/tr>\n<tr>\n<td>Deliverables<\/td>\n<td>Bore plan, daily records, as-built survey, restoration evidence, inspection records<\/td>\n<td>Distinguishes utility record-keeping from pipeline documentation<\/td>\n<\/tr>\n<tr>\n<td>Risk allocation<\/td>\n<td>Differing site conditions, inadvertent return, utility strikes, obstruction handling, restoration standards<\/td>\n<td>Puts each risk in a priced line before the contract is signed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<figure><img decoding=\"async\" src=\"https:\/\/www.pipetechservice.com\/wp-content\/uploads\/2026\/10\/directional-boring-vs-hdd-scope-comparison.jpg\" alt=\"Comparison of utility directional boring and pipeline HDD scope showing typical rig class, diameter, bore length, guidance, contract vocabulary and priced risk items\" width=\"800\" height=\"600\" \/><figcaption>Figure 3. The same method priced two ways: a per-shot utility schedule against an engineered lump-sum crossing.<\/figcaption><\/figure>\n<h2 id=\"scope-of-application\">Scope of Application: When the Wording Changes the Job<\/h2>\n<p>The directional boring and horizontal directional drilling distinction matters wherever scope, tolerance or documentation is bought. It does not matter where a crew is simply asked to place a duct under a driveway.<\/p>\n<ul>\n<li><strong>It changes the job<\/strong> when line and grade, bore records or an as-built survey are specified.<\/li>\n<li><strong>It changes the job<\/strong> when the pipe is welded steel rather than fused polyethylene.<\/li>\n<li><strong>It does not change the job<\/strong> when both sides already mean the same machine, the same bore and the same acceptance test.<\/li>\n<\/ul>\n<h2 id=\"by-project-role\">How This Changes by Project Role<\/h2>\n<h3>What scope is a utility contractor actually quoting?<\/h3>\n<p>Price the scope you are actually being asked for, and say which it is: per bore shot for utility work, per crossing against a bore plan for pipeline work.<\/p>\n<h3>How should a procurement engineer compare directional boring and HDD bids?<\/h3>\n<p>Make every bidder price the same scope. The wording is the problem, not the price, so put the deliverables, tolerance and survey requirements in the document.<\/p>\n<h3>What is missing when a pipeline crossing is briefed like a utility bore?<\/h3>\n<p>Check for a bore plan, a reamed-hole basis and an as-built requirement. If they are missing, the brief was written for a small rig and a large crossing.<\/p>\n<h2 id=\"faq\">Frequently Asked Questions<\/h2>\n<h3>Is directional boring the same as horizontal directional drilling?<\/h3>\n<p><strong>Yes, in engineering terms they are the same method.<\/strong> Both names describe a surface-launched rig that drills a steerable pilot bore along a shallow arc, reams it to size, and pulls the product pipe back. Directional boring is the everyday name in utility and telecom work; horizontal directional drilling is the same operation described in larger pipeline and river crossing contracts.<\/p>\n<h3>Is directional boring vs horizontal directional drilling just a naming difference?<\/h3>\n<p><strong>Mostly, but not entirely.<\/strong> The hardware and the sequence are identical, yet the words carry different expectations about scale and deliverables. A utility owner asking for directional boring expects a small rig, a short bore and pricing per foot. A pipeline owner asking for horizontal directional drilling expects a midi or maxi spread, an engineered bore plan and an as-built survey.<\/p>\n<h3>Is thrust boring the same as horizontal directional drilling?<\/h3>\n<p><strong>No.<\/strong> Thrust boring, also called auger boring or jack and bore, pushes a casing behind an auger cutting head as one unsteerable straight drive; horizontal directional drilling steers a pilot bore along a designed curve and pulls a flexible pipe back. Thrust boring cannot follow a curve, and HDD cannot hold the tight constant grade a gravity line needs.<\/p>\n<h3>What does bore shot mean in a directional boring contract?<\/h3>\n<p><strong>A bore shot is one completed bore between two designated points, usually the entry and exit pits.<\/strong> Utility contracts are commonly measured per shot or per foot of installed duct, so a route made of six linked shots is quoted as six separate items. In pipeline contracts the same physical work is more often priced as one lump-sum crossing.<\/p>\n<h3>Which is better, directional boring or horizontal directional drilling?<\/h3>\n<p><strong>Neither is better in general, because the choice is a scale and scope decision rather than a technical one.<\/strong> Small-rig directional boring suits service laterals, fibre and short utility crossings. Mid-range and maxi HDD suits long crossings, large diameters and pipeline work that needs an engineered bore plan.<\/p>\n<h3>Can a directional boring crew deliver a maxi HDD pipeline crossing?<\/h3>\n<p><strong>Usually not.<\/strong> Maxi crossings need pullback capacity above roughly 100,000 lb, high-volume fluid handling, mud recycling, deep guidance and a pipe string prepared for pullback. A crew equipped for utility directional boring may own a rig of a few tonnes of pullback and no mud plant, so the scope has to be matched to the spread, not to the label.<\/p>\n<h2 id=\"key-takeaways\">Key Takeaways<\/h2>\n<ul>\n<li>Directional boring vs horizontal directional drilling is framed as a technical choice, but both names describe one steerable trenchless method.<\/li>\n<li>What differs is scope: small-rig utility and telecom work is called directional boring; large-diameter pipeline and river crossings are called HDD.<\/li>\n<li>Methods that are genuinely different &#8211; auger and thrust boring, pipe ramming, microtunneling and direct pipe &#8211; are the real source of tender confusion.<\/li>\n<li>The word bore changes meaning by contract type: a per-shot item in utility schedules, a lump-sum crossing in pipeline scopes.<\/li>\n<li>A scope stating rig class, diameter, length, guidance, tolerances, deliverables and risk allocation removes the ambiguity one method name leaves.<\/li>\n<\/ul>\n<h2>How JSW Supports Directional Boring and HDD Projects<\/h2>\n<p>JSW is a pipeline engineering and construction company that executes trenchless crossings with its own crews and equipment. Our scope covers <a href=\"https:\/\/www.pipetechservice.com\/vi\/horizontal-directional-drilling-services\/\" target=\"_blank\" rel=\"noopener\">horizontal directional drilling services<\/a>, trenchless technologies, microtunneling construction, <a href=\"https:\/\/www.pipetechservice.com\/vi\/automated-welding-systems-services\/\" target=\"_blank\" rel=\"noopener\">automatic pipeline welding<\/a> for pipe string preparation, and the <a href=\"https:\/\/www.pipetechservice.com\/vi\/pipeline-installation-services\/\" target=\"_blank\" rel=\"noopener\">d\u1ecbch v\u1ee5 l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1eddng \u1ed1ng<\/a> chain that connects them.<\/p>\n<p>Because we plan, engineer and execute the work ourselves, we can read either vocabulary and price it against the spread that will deliver it. To us, a scope labelled directional boring vs horizontal directional drilling is a question of class and deliverables, not a different package.<\/p>\n<ul>\n<li><strong>Integrated delivery:<\/strong> bore planning, pipe string fabrication, pullback and restoration under one contract, removing interface risk.<\/li>\n<li><strong>Auditable process data:<\/strong> daily drilling records, fluid management records and as-built surveys that stand up to owner and regulator review.<\/li>\n<li><strong>Risk-explicit pricing:<\/strong> fluid disposal, restoration, obstruction handling and differing site conditions priced as separate lines, so a change is a known number rather than a dispute.<\/li>\n<li><strong>Safety and compliance:<\/strong> utility locating and one-call practice, trial pits and protection of live services as a precondition of mobilisation.<\/li>\n<\/ul>\n<div class=\"cta-box\">\n<p><strong>Not sure which words your scope should use?<\/strong> Send your bore scope, contract wording and ground data for a free technical review. Our engineers confirm the correct method, rig class and scope language, and return a scoped recommendation with a budget range.<\/p>\n<p><a href=\"https:\/\/www.pipetechservice.com\/vi\/contact-us\/\" target=\"_blank\" rel=\"noopener\">Request a Free Technical Review<\/a><\/p>\n<\/div>\n<footer><strong>About the author:<\/strong> <span class=\"author-name\">JSW Engineering Team<\/span>. Written by JSW&#8217;s pipeline and trenchless engineering group: engineers who have planned and supervised HDD crossings, pipeline installation and live-line tie-ins for oil and gas, water and infrastructure projects.<\/p>\n<p><em>Credential note: crossings described in this guide are delivered by JSW&#8217;s own crews and equipment, and technical recommendations are reviewed by professional engineers before bid.<\/em><\/p>\n<p><em>Rig class, diameter and bore length figures are typical published ranges for standard equipment, and terminology varies by market; any project still has to be validated against its own alignment, geology and permit conditions.<\/em><\/p>\n<\/footer>","protected":false},"excerpt":{"rendered":"<p>In most markets, directional boring vs horizontal directional drilling is not a contest between two methods &#8211; they are the same steerable, surface-launched trenchless technique, and the two names are used interchangeably. The difference that carries real weight is scope. Directional boring names small-rig utility, telecom and service work; horizontal directional drilling describes longer, larger-diameter [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6343,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[340],"tags":[1285,1355,1357,727,1356],"class_list":["post-6346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-directional-boring","tag-directional-boring-vs-horizontal-directional-drilling","tag-hdd-rig-classes","tag-horizontal-directional-drilling","tag-thrust-boring"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.5 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Directional Boring vs Horizontal Directional Drilling | JSW<\/title>\n<meta name=\"description\" content=\"Directional boring and horizontal directional drilling are the same steerable method in most markets. 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most markets, directional boring vs horizontal directional drilling is not a contest between two methods &#8211; they are the same steerable, surface-launched trenchless technique, and the two names are used interchangeably. The difference that carries real weight is scope. Directional boring names small-rig utility, telecom and service work; horizontal directional drilling describes longer, larger-diameter&hellip;","_links":{"self":[{"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/posts\/6346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/comments?post=6346"}],"version-history":[{"count":1,"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/posts\/6346\/revisions"}],"predecessor-version":[{"id":6389,"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/posts\/6346\/revisions\/6389"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/media\/6343"}],"wp:attachment":[{"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/media?parent=6346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/categories?post=6346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pipetechservice.com\/vi\/wp-json\/wp\/v2\/tags?post=6346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}