{"id":6257,"date":"2026-01-01T09:00:36","date_gmt":"2026-01-01T02:00:36","guid":{"rendered":"https:\/\/mayxaydunghanoi.com\/?p=6257"},"modified":"2025-12-13T03:14:20","modified_gmt":"2025-12-12T20:14:20","slug":"cach-chon-bua-rung-dien-phu-hop-theo-chieu-dai-va-tiet-dien-coc-cong-trinh","status":"publish","type":"post","link":"https:\/\/mayxaydunghanoi.com\/vi\/cach-chon-bua-rung-dien-phu-hop-theo-chieu-dai-va-tiet-dien-coc-cong-trinh\/","title":{"rendered":"C\u00e1ch ch\u1ecdn b\u00faa rung \u0111i\u1ec7n ph\u00f9 h\u1ee3p theo chi\u1ec1u d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc c\u00f4ng tr\u00ecnh"},"content":{"rendered":"<h2>H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn b\u00faa rung \u0111i\u1ec7n t\u1ed1i \u01b0u d\u1ef1a tr\u00ean chi\u1ec1u d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc, gi\u00fap \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 xuy\u00ean c\u1ecdc, an to\u00e0n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed thi c\u00f4ng.<\/h2>\n<p>Trong qu\u00e1 tr\u00ecnh thi c\u00f4ng c\u1ecdc m\u00f3ng t\u1ea1i c\u00e1c c\u00f4ng tr\u00ecnh giao th\u00f4ng, d\u00e2n d\u1ee5ng, th\u1ee7y l\u1ee3i \u2013 vi\u1ec7c l\u1ef1a ch\u1ecdn sai b\u00faa rung \u0111i\u1ec7n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng c\u1ecdc kh\u00f4ng xuy\u00ean, cong v\u00eanh, ho\u1eb7c rung qu\u00e1 m\u1ee9c g\u00e2y h\u01b0 h\u1ea1i c\u1ea5u ki\u1ec7n. \u0110\u00e2y l\u00e0 sai l\u1ea7m ph\u1ed5 bi\u1ebfn khi k\u1ef9 s\u01b0 ho\u1eb7c nh\u00e0 th\u1ea7u kh\u00f4ng t\u00ednh to\u00e1n k\u1ef9 gi\u1eefa c\u00f4ng su\u1ea5t b\u00faa v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ecdc.<\/p>\n<p>Trong b\u00e0i vi\u1ebft n\u00e0y, Hanoi Vietnam s\u1ebd ph\u00e2n t\u00edch s\u00e2u c\u00e1c kh\u00eda c\u1ea1nh k\u1ef9 thu\u1eadt, c\u00f4ng n\u0103ng th\u1ef1c t\u1ebf, chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 so s\u00e1nh v\u1edbi c\u00e1c d\u00f2ng m\u00e1y x\u00fac l\u1eadt kh\u00e1c, t\u1eeb \u0111\u00f3 gi\u00fap k\u1ef9 s\u01b0 v\u00e0 ch\u1ee7 \u0111\u1ea7u t\u01b0 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh \u0111\u00fang \u0111\u1eafn.<\/p>\n<hr \/>\n<h3>T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c ch\u1ecdn \u0111\u00fang b\u00faa rung \u0111i\u1ec7n theo k\u00edch th\u01b0\u1edbc c\u1ecdc<\/h3>\n<p>B\u00faa rung \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ed9ng h\u01b0\u1edfng t\u1ea7n s\u1ed1, s\u1eed d\u1ee5ng m\u00f4-men ly t\u00e2m \u0111\u1ec3 t\u1ea1o rung \u0111\u1ed9ng l\u00e0m gi\u1ea3m ma s\u00e1t gi\u1eefa c\u1ecdc v\u00e0 \u0111\u1ea5t. \u0110\u00e2y l\u00e0 thi\u1ebft b\u1ecb ph\u1ed5 bi\u1ebfn trong thi c\u00f4ng c\u1ecdc v\u00e1n th\u00e9p, c\u1ecdc \u1ed1ng, c\u1ecdc b\u00ea t\u00f4ng ly t\u00e2m, c\u1ecdc I\/H, \u0111\u1eb7c bi\u1ec7t trong \u0111i\u1ec1u ki\u1ec7n n\u1ec1n y\u1ebfu ho\u1eb7c c\u00e1t pha.<\/p>\n<p>Tuy nhi\u00ean, hi\u1ec7u qu\u1ea3 c\u1ee7a b\u00faa rung ph\u1ee5 thu\u1ed9c r\u1ea5t l\u1edbn v\u00e0o:<\/p>\n<ul>\n<li>Chi\u1ec1u d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc<\/li>\n<li>Tr\u1ecdng l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u<\/li>\n<li>\u0110\u1ecba t\u1ea7ng n\u1ec1n \u0111\u1ea5t<\/li>\n<li>Lo\u1ea1i k\u1eb9p v\u00e0 ki\u1ec3u g\u00e1 m\u00e1y<\/li>\n<\/ul>\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn sai th\u00f4ng s\u1ed1 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn:<\/p>\n<ul>\n<li>B\u00faa kh\u00f4ng \u0111\u1ee7 l\u1ef1c \u2192 kh\u00f4ng xuy\u00ean c\u1ecdc<\/li>\n<li>Rung qu\u00e1 m\u1ea1nh \u2192 h\u01b0 h\u1ecfng \u0111\u1ea7u c\u1ecdc<\/li>\n<li>S\u1ee5t l\u00fan c\u1ecdc \u2192 l\u1ec7ch tr\u1ee5c thi c\u00f4ng<\/li>\n<\/ul>\n<p>Do \u0111\u00f3, vi\u1ec7c <strong>hi\u1ec3u r\u00f5 c\u00e1ch ch\u1ecdn b\u00faa rung \u0111i\u1ec7n theo t\u1eebng lo\u1ea1i c\u1ecdc v\u00e0 \u0111\u1ed9 s\u00e2u<\/strong> l\u00e0 y\u1ebfu t\u1ed1 s\u1ed1ng c\u00f2n trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf v\u00e0 chu\u1ea9n b\u1ecb thi c\u00f4ng m\u00f3ng.<\/p>\n<hr \/>\n<h3>\u0110\u1eb7c \u0111i\u1ec3m c\u1ea5u t\u1ea1o v\u00e0 nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c c\u1ee7a b\u00faa rung \u0111i\u1ec7n<\/h3>\n<p>B\u00faa rung \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb c\u00e1c ph\u1ea7n ch\u00ednh:<\/p>\n<ul>\n<li><strong>M\u00f4-t\u01a1 \u0111i\u1ec7n 3 pha<\/strong>: t\u1ea1o l\u1ef1c quay ban \u0111\u1ea7u cho tr\u1ee5c l\u1ec7ch t\u00e2m<\/li>\n<li><strong>H\u1ed9p ly t\u00e2m rung<\/strong>: ch\u1ee9a c\u00e1c tr\u1ee5c l\u1ec7ch t\u00e2m \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed \u0111\u1ed1i x\u1ee9ng ho\u1eb7c l\u1ec7ch pha \u0111\u1ec3 t\u1ea1o rung d\u1ecdc tr\u1ee5c<\/li>\n<li><strong>B\u1ed9 k\u1eb9p c\u1ecdc (k\u1eb9p th\u1ee7y l\u1ef1c ho\u1eb7c c\u01a1 kh\u00ed)<\/strong>: truy\u1ec1n l\u1ef1c rung t\u1eeb b\u00faa xu\u1ed1ng c\u1ecdc<\/li>\n<li><strong>Khung d\u1eabn h\u01b0\u1edbng (n\u1ebfu c\u00f3)<\/strong>: gi\u00fap gi\u1eef tr\u1ee5c b\u00faa th\u1eb3ng \u0111\u1ee9ng, tr\u00e1nh l\u1ec7ch t\u00e2m<\/li>\n<li><strong>T\u1ee7 \u0111i\u1ec1u khi\u1ec3n \/ bi\u1ebfn t\u1ea7n<\/strong>: ki\u1ec3m so\u00e1t t\u1ea7n s\u1ed1, b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1<\/li>\n<\/ul>\n<p>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng:<\/p>\n<ol>\n<li>M\u00f4-t\u01a1 quay c\u00e1c tr\u1ee5c l\u1ec7ch t\u00e2m, sinh l\u1ef1c ly t\u00e2m l\u1edbn<\/li>\n<li>L\u1ef1c rung \u0111\u01b0\u1ee3c truy\u1ec1n xu\u1ed1ng \u0111\u1ea7u c\u1ecdc<\/li>\n<li>Ma s\u00e1t gi\u1eefa \u0111\u1ea5t v\u00e0 th\u00e0nh c\u1ecdc gi\u1ea3m \u2192 c\u1ecdc xuy\u00ean s\u00e2u nh\u1edd tr\u1ecdng l\u1ef1c k\u1ebft h\u1ee3p rung \u0111\u1ed9ng<\/li>\n<\/ol>\n<p>T\u1ea7n s\u1ed1 rung th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng <strong>1200\u20132800 v\u00f2ng\/ph\u00fat<\/strong>, l\u1ef1c ly t\u00e2m t\u1eeb <strong>300 kN \u0111\u1ebfn 1200 kN<\/strong>, t\u00f9y theo k\u00edch th\u01b0\u1edbc m\u00e1y.<\/p>\n<hr \/>\n<h3>M\u1ed1i quan h\u1ec7 gi\u1eefa chi\u1ec1u d\u00e0i c\u1ecdc \u2013 ti\u1ebft di\u1ec7n v\u00e0 c\u00f4ng su\u1ea5t b\u00faa rung<\/h3>\n<p>M\u1ed9t nguy\u00ean t\u1eafc v\u00e0ng khi ch\u1ecdn b\u00faa rung:<\/p>\n<blockquote><p><strong>C\u1ecdc c\u00e0ng d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n l\u1edbn \u2192 c\u1ea7n l\u1ef1c rung m\u1ea1nh v\u00e0 bi\u00ean \u0111\u1ed9 dao \u0111\u1ed9ng l\u1edbn.<\/strong><\/p><\/blockquote>\n<h4>1. <strong>Chi\u1ec1u d\u00e0i c\u1ecdc \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1ef1c xuy\u00ean<\/strong><\/h4>\n<ul>\n<li>C\u1ecdc ng\u1eafn (&lt; 10m): c\u00f3 th\u1ec3 d\u00f9ng b\u00faa l\u1ef1c nh\u1ecf (30\u201340kW)<\/li>\n<li>C\u1ecdc d\u00e0i 10\u201320m: c\u1ea7n b\u00faa trung b\u00ecnh (45\u201360kW), l\u1ef1c ly t\u00e2m 500\u2013800kN<\/li>\n<li>C\u1ecdc \u2265 25m: b\u1eaft bu\u1ed9c d\u00f9ng b\u00faa l\u1edbn \u2265 75kW, l\u1ef1c ly t\u00e2m 900\u20131200kN<\/li>\n<\/ul>\n<h4>2. <strong>Ti\u1ebft di\u1ec7n c\u1ecdc \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn lo\u1ea1i k\u1eb9p v\u00e0 l\u1ef1c k\u1eb9p<\/strong><\/h4>\n<ul>\n<li><strong>C\u1ecdc I\/H<\/strong>: d\u1ec5 rung, nh\u01b0ng d\u1ec5 v\u1eb7n \u2192 c\u1ea7n khung d\u1eabn h\u01b0\u1edbng<\/li>\n<li><strong>C\u1ecdc \u1ed1ng th\u00e9p<\/strong>: c\u1ea7n k\u1eb9p tr\u00f2n ch\u1eafc ch\u1eafn<\/li>\n<li><strong>C\u1ecdc v\u00e1n th\u00e9p (sheet pile)<\/strong>: d\u1ec5 cong v\u00eanh \u2192 c\u1ea7n k\u1eb9p 2 \u0111i\u1ec3m, l\u1ef1c gi\u1eef cao<\/li>\n<li><strong>C\u1ecdc b\u00ea t\u00f4ng D400\u2013D600<\/strong>: r\u1ea5t n\u1eb7ng, c\u1ea7n k\u1eb9p chuy\u00ean d\u1ee5ng v\u00e0 b\u00faa c\u00f3 momen l\u1edbn<\/li>\n<\/ul>\n<hr \/>\n<h3>C\u00e1ch t\u00ednh s\u01a1 b\u1ed9 l\u1ef1c ly t\u00e2m c\u1ea7n thi\u1ebft cho t\u1eebng lo\u1ea1i c\u1ecdc<\/h3>\n<p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng \u01b0\u1edbc l\u01b0\u1ee3ng:<\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr>\n<th>Lo\u1ea1i c\u1ecdc<\/th>\n<th>Chi\u1ec1u d\u00e0i (m)<\/th>\n<th>\u0110\u01b0\u1eddng k\u00ednh \/ Ti\u1ebft di\u1ec7n<\/th>\n<th>Tr\u1ecdng l\u01b0\u1ee3ng c\u1ecdc (t\u1ea5n)<\/th>\n<th>L\u1ef1c ly t\u00e2m khuy\u1ebfn ngh\u1ecb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>V\u00e1n th\u00e9p SPIII<\/td>\n<td>8\u201310<\/td>\n<td>400 mm<\/td>\n<td>~1.2 t\u1ea5n<\/td>\n<td>300\u2013500 kN<\/td>\n<\/tr>\n<tr>\n<td>H400<\/td>\n<td>12\u201315<\/td>\n<td>400&#215;400 mm<\/td>\n<td>~2.8 t\u1ea5n<\/td>\n<td>500\u2013700 kN<\/td>\n<\/tr>\n<tr>\n<td>\u1ed0ng th\u00e9p D508<\/td>\n<td>18\u201324<\/td>\n<td>\u00d8 508 mm<\/td>\n<td>~4.5 t\u1ea5n<\/td>\n<td>700\u20131000 kN<\/td>\n<\/tr>\n<tr>\n<td>BTCT D600<\/td>\n<td>20\u201326<\/td>\n<td>\u00d8 600 mm<\/td>\n<td>~6.0 t\u1ea5n<\/td>\n<td>1000\u20131200 kN<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>Ghi ch\u00fa: C\u00e1c con s\u1ed1 mang t\u00ednh tham kh\u1ea3o, c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh theo \u0111\u1ecba t\u1ea7ng v\u00e0 \u0111\u1ed9 ch\u1eb7t c\u1ee7a \u0111\u1ea5t.<\/p><\/blockquote>\n<hr \/>\n<h3>So s\u00e1nh c\u00e1c d\u00f2ng b\u00faa rung \u0111i\u1ec7n ph\u1ed5 bi\u1ebfn theo k\u00edch th\u01b0\u1edbc c\u1ecdc<\/h3>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #ddd; padding: 8px;\">Lo\u1ea1i c\u1ecdc<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px;\">Chi\u1ec1u d\u00e0i (m)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px;\">\u0110\u01b0\u1eddng k\u00ednh \/ Ti\u1ebft di\u1ec7n<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px;\">Tr\u1ecdng l\u01b0\u1ee3ng c\u1ecdc (t\u1ea5n)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px;\">L\u1ef1c ly t\u00e2m khuy\u1ebfn ngh\u1ecb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">V\u00e1n th\u00e9p SPIII<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8\u201310<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">400 mm<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">~1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">300\u2013500 kN<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">H400<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12\u201315<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">400&#215;400 mm<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">~2.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">500\u2013700 kN<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">\u1ed0ng th\u00e9p D508<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18\u201324<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">\u00d8 508 mm<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">~4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">700\u20131000 kN<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">BTCT D600<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20\u201326<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">\u00d8 600 mm<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">~6.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1000\u20131200 kN<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>C\u00e1c y\u1ebfu t\u1ed1 ph\u1ee5 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u1ef1a ch\u1ecdn b\u00faa rung<\/h3>\n<ol>\n<li><strong>\u0110\u1ecba ch\u1ea5t n\u1ec1n<\/strong>\n<ul>\n<li>\u0110\u1ea5t b\u00f9n y\u1ebfu: ch\u1ec9 c\u1ea7n b\u00faa v\u1eeba<\/li>\n<li>C\u00e1t ch\u1eb7t ho\u1eb7c l\u1eabn s\u1ecfi: c\u1ea7n b\u00faa l\u1ef1c m\u1ea1nh<\/li>\n<li>\u0110\u1ea5t s\u00e9t d\u00ednh ho\u1eb7c t\u1ea7ng l\u1eabn \u0111\u00e1: n\u00ean khoan d\u1eabn tr\u01b0\u1edbc<\/li>\n<\/ul>\n<\/li>\n<li><strong>Ngu\u1ed3n \u0111i\u1ec7n hi\u1ec7n tr\u01b0\u1eddng<\/strong>\n<ul>\n<li>B\u00faa rung c\u00f4ng su\u1ea5t l\u1edbn c\u1ea7n \u0111i\u1ec7n 3 pha \u1ed5n \u0111\u1ecbnh 380V<\/li>\n<li>N\u1ebfu thi\u1ebfu \u0111i\u1ec7n \u2192 n\u00ean d\u00f9ng <strong>b\u00faa rung d\u1ea7u \u2013 \u0111i\u1ec7n k\u1ebft h\u1ee3p<\/strong><\/li>\n<\/ul>\n<\/li>\n<li><strong>Ti\u1ebfn \u0111\u1ed9 c\u00f4ng tr\u00ecnh<\/strong>\n<ul>\n<li>D\u1ef1 \u00e1n y\u00eau c\u1ea7u xuy\u00ean 100\u2013150 c\u1ecdc\/ng\u00e0y \u2192 n\u00ean d\u00f9ng b\u00faa rung c\u00f3 h\u1ec7 th\u1ed1ng t\u1ea3n nhi\u1ec7t d\u1ea7u t\u1ed1t v\u00e0 k\u1eb9p thay nhanh<\/li>\n<\/ul>\n<\/li>\n<li><strong>Lo\u1ea1i m\u00e1y mang b\u00faa (c\u1ea9u x\u00edch hay c\u1ea9u b\u00e1nh l\u1ed1p)<\/strong>\n<ul>\n<li>V\u1edbi c\u1ea9u b\u00e1nh l\u1ed1p: h\u1ea1n ch\u1ebf tr\u1ecdng l\u01b0\u1ee3ng b\u00faa &lt; 5 t\u1ea5n<\/li>\n<li>V\u1edbi c\u1ea9u x\u00edch: c\u00f3 th\u1ec3 treo b\u00faa 7\u201310 t\u1ea5n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr \/>\n<h3>M\u1ed9t s\u1ed1 kinh nghi\u1ec7m ch\u1ecdn b\u00faa rung \u0111i\u1ec7n t\u1ea1i c\u00f4ng tr\u00ecnh th\u1ef1c t\u1ebf<\/h3>\n<h4>C\u00f4ng tr\u00ecnh 1: \u00c9p c\u1ecdc v\u00e1n th\u00e9p SP-IV t\u1ea1i k\u00e8 s\u00f4ng<\/h4>\n<ul>\n<li>\u0110\u1ecba ch\u1ea5t: b\u00f9n pha s\u00e9t<\/li>\n<li>C\u1ecdc: SP-IV, d\u00e0i 9m<\/li>\n<li>B\u00faa s\u1eed d\u1ee5ng: DZ-60A, 30 kW, l\u1ef1c rung 450kN<\/li>\n<li>K\u1ebft qu\u1ea3: xuy\u00ean \u0111\u1ec1u 9m trong 3\u20135 ph\u00fat\/c\u1ecdc, kh\u00f4ng bi\u1ebfn d\u1ea1ng<\/li>\n<\/ul>\n<h4>C\u00f4ng tr\u00ecnh 2: Thi c\u00f4ng c\u1ecdc \u1ed1ng D508 t\u1ea1i c\u1ea7u v\u01b0\u1ee3t<\/h4>\n<ul>\n<li>\u0110\u1ecba ch\u1ea5t: \u0111\u1ea5t l\u1eabn c\u00e1t, \u0111\u1ed9 ch\u1eb7t cao<\/li>\n<li>C\u1ecdc: \u00d8508mm, d\u00e0i 18m, tr\u1ecdng l\u01b0\u1ee3ng 4.2 t\u1ea5n<\/li>\n<li>B\u00faa: DZJ-150, 75kW, l\u1ef1c ly t\u00e2m 900kN<\/li>\n<li>K\u1ebft qu\u1ea3: ph\u1ea3i rung 2 b\u1eadc, c\u1ea7n t\u1ed5 h\u1ee3p khoan d\u1eabn tr\u01b0\u1edbc \u0111\u1ec3 xuy\u00ean t\u1ea7ng s\u00e9t<\/li>\n<\/ul>\n<hr \/>\n<h3>L\u01b0u \u00fd khi v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec b\u00faa rung \u0111i\u1ec7n<\/h3>\n<ul>\n<li><strong>Tr\u01b0\u1edbc thi c\u00f4ng<\/strong>: ki\u1ec3m tra k\u1eb9p, d\u00e2y \u0111i\u1ec7n, t\u1ee7 \u0111i\u1ec1u khi\u1ec3n, \u0111\u1ed9 ch\u1eb7t \u0111\u1ea7u c\u1ecdc<\/li>\n<li><strong>Trong thi c\u00f4ng<\/strong>: gi\u1eef t\u1ed1c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh, tr\u00e1nh rung l\u1ec7ch tr\u1ee5c<\/li>\n<li><strong>Sau thi c\u00f4ng<\/strong>: v\u1ec7 sinh tr\u1ee5c rung, thay m\u1ee1 \u0111\u1ecbnh k\u1ef3<\/li>\n<li><strong>\u0110\u1ecbnh k\u1ef3<\/strong>: ki\u1ec3m tra b\u1ea1c \u0111\u1ea1n, cu\u1ed9n d\u00e2y m\u00f4-t\u01a1, inverter<\/li>\n<\/ul>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><strong>Ch\u1ecdn \u0111\u00fang b\u00faa rung \u0111i\u1ec7n l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh th\u00e0nh b\u1ea1i c\u1ee7a thi c\u00f4ng c\u1ecdc.<\/strong><\/li>\n<li>C\u1ecdc d\u00e0i v\u00e0 l\u1edbn \u2192 c\u1ea7n b\u00faa rung c\u00f3 l\u1ef1c ly t\u00e2m v\u00e0 c\u00f4ng su\u1ea5t cao h\u01a1n, h\u1ec7 k\u1eb9p chuy\u00ean d\u1ee5ng.<\/li>\n<li>C\u1ea7n xem x\u00e9t c\u1ea3 \u0111\u1ecba ch\u1ea5t n\u1ec1n, ti\u1ebfn \u0111\u1ed9 c\u00f4ng tr\u00ecnh, \u0111i\u1ec1u ki\u1ec7n \u0111i\u1ec7n hi\u1ec7n tr\u01b0\u1eddng \u0111\u1ec3 ch\u1ecdn thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p.<\/li>\n<\/ul>\n<hr \/>\n<p>B\u1ea1n c\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn <strong>b\u00faa rung \u0111i\u1ec7n<\/strong> theo \u0111\u00fang lo\u1ea1i c\u1ecdc \u0111ang d\u00f9ng trong c\u00f4ng tr\u00ecnh? H\u00e3y cung c\u1ea5p c\u00e1c th\u00f4ng tin sau \u0111\u1ec3 Hanoi Vietnam h\u1ed7 tr\u1ee3:<\/p>\n<ul>\n<li>Lo\u1ea1i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc (\u1ed1ng, v\u00e1n, b\u00ea t\u00f4ng\u2026)<\/li>\n<li>Chi\u1ec1u d\u00e0i c\u1ecdc v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u1ea7n thi c\u00f4ng<\/li>\n<li>T\u1ea7ng \u0111\u1ecba ch\u1ea5t ch\u1ee7 y\u1ebfu<\/li>\n<li>Thi\u1ebft b\u1ecb c\u1ea9u d\u1ef1 ki\u1ebfn s\u1eed d\u1ee5ng<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn b\u00faa rung \u0111i\u1ec7n t\u1ed1i \u01b0u d\u1ef1a tr\u00ean chi\u1ec1u d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc, gi\u00fap \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 xuy\u00ean c\u1ecdc, an to\u00e0n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed thi c\u00f4ng. Trong qu\u00e1 tr\u00ecnh thi c\u00f4ng c\u1ecdc m\u00f3ng t\u1ea1i c\u00e1c c\u00f4ng tr\u00ecnh giao th\u00f4ng, d\u00e2n d\u1ee5ng, th\u1ee7y l\u1ee3i \u2013 vi\u1ec7c l\u1ef1a ch\u1ecdn sai b\u00faa rung \u0111i\u1ec7n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng c\u1ecdc kh\u00f4ng xuy\u00ean, cong v\u00eanh, ho\u1eb7c&#8230;<\/p>\n","protected":false},"author":1,"featured_media":4749,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-6257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1ch ch\u1ecdn b\u00faa rung \u0111i\u1ec7n ph\u00f9 h\u1ee3p theo chi\u1ec1u d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc c\u00f4ng tr\u00ecnh - Hanoi Vietnam Co., Ltd<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mayxaydunghanoi.com\/vi\/cach-chon-bua-rung-dien-phu-hop-theo-chieu-dai-va-tiet-dien-coc-cong-trinh\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1ch ch\u1ecdn b\u00faa rung \u0111i\u1ec7n ph\u00f9 h\u1ee3p theo chi\u1ec1u d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc c\u00f4ng tr\u00ecnh\" \/>\n<meta property=\"og:description\" content=\"H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn b\u00faa rung \u0111i\u1ec7n t\u1ed1i \u01b0u d\u1ef1a tr\u00ean chi\u1ec1u d\u00e0i v\u00e0 ti\u1ebft di\u1ec7n c\u1ecdc, gi\u00fap \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 xuy\u00ean c\u1ecdc, an to\u00e0n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed thi c\u00f4ng. 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