{"id":678,"date":"2024-07-08T04:34:42","date_gmt":"2024-07-08T04:34:42","guid":{"rendered":"https:\/\/cenprecast.com\/?p=678"},"modified":"2024-07-08T04:34:44","modified_gmt":"2024-07-08T04:34:44","slug":"xay-dung-cau-can-nhip-lon-dam-uhpc-cho-dong-bang-song-cuu-long","status":"publish","type":"post","link":"https:\/\/cenprecast.com\/en\/xay-dung-cau-can-nhip-lon-dam-uhpc-cho-dong-bang-song-cuu-long\/","title":{"rendered":"Construction of large-span UHPC girder overpass for the Mekong Delta"},"content":{"rendered":"

\u0110\u00f3 l\u00e0 \u00fd ki\u1ebfn c\u1ee7a TS. Tr\u1ea7n B\u00e1 Vi\u1ec7t, Ph\u00f3 Ch\u1ee7 t\u1ecbch H\u1ed9i B\u00ea t\u00f4ng Vi\u1ec7t Nam v\u1ec1 gi\u1ea3i ph\u00e1p c\u1ea7u c\u1ea1n cho ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng h\u1ec7 th\u1ed1ng h\u1ea1 t\u1ea7ng giao th\u00f4ng t\u1ea1i n\u01b0\u1edbc ta, \u0111\u1eb7c bi\u1ec7t l\u00e0 khu v\u1ef1c \u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long.<\/strong><\/p>\n\n\n\n

Hi\u1ec7n nay, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1t bi\u1ec3n l\u00e0m v\u1eadt li\u1ec7u \u0111\u1eafp n\u1ec1n \u0111\u01b0\u1eddng t\u1ea1i c\u00e1c d\u1ef1 \u00e1n cao t\u1ed1c m\u1edbi \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u tr\u00ean m\u00f4 h\u00ecnh nh\u1ecf. B\u1ed9 Giao th\u00f4ng v\u1eadn t\u1ea3i ch\u01b0a ban h\u00e0nh quy tr\u00ecnh k\u1ef9 thu\u1eadt \u0111\u1ec3 san l\u1ea5p b\u1eb1ng c\u00e1t bi\u1ec3n.<\/p>\n\n\n\n

H\u01a1n n\u1eefa, n\u1ebfu mu\u1ed1n s\u1eed d\u1ee5ng c\u00e1t bi\u1ec3n ph\u1ea3i c\u00f3 quy tr\u00ecnh quan tr\u1eafc \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 t\u00e1c \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng. Vi\u1ec7c khai th\u00e1c c\u00e1t bi\u1ec3n trong khi kh\u00f4ng c\u00f3 ngu\u1ed3n ph\u00f9 sa b\u1ed3i t\u00edch s\u1ebd l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u1ed5n \u0111\u1ecbnh \u0111\u01b0\u1eddng b\u1edd bi\u1ec3n v\u00e0 m\u0169i C\u00e0 Mau, v\u1ec1 l\u00e2u d\u00e0i s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 v\u00f9ng l\u00e3nh h\u1ea3i.<\/p>\n\n\n\n

Do \u0111\u00f3, c\u00e1c d\u1ef1 \u00e1n t\u1ea1i \u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long hi\u1ec7n nay v\u1eabn ch\u01b0a th\u1ec3 s\u1eed d\u1ee5ng c\u00e1t bi\u1ec3n \u0111\u1ec3 san l\u1ea5p n\u1ec1n \u0111\u01b0\u1eddng cao t\u1ed1c. Trong t\u00ecnh h\u00ecnh n\u00e0y, TS. Tr\u1ea7n B\u00e1 Vi\u1ec7t cho r\u1eb1ng, gi\u1ea3i ph\u00e1p c\u0103n c\u01a1 v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t l\u00e0 s\u1eed d\u1ee5ng c\u1ea7u c\u1ea1n v\u1edbi nh\u1ecbp d\u1ea7m l\u1edbn kho\u1ea3ng 50m \u2013 60m cho c\u00e1c d\u1ef1 \u00e1n cao t\u1ed1c \u1edf \u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long.<\/p>\n\n\n\n

TS. Tr\u1ea7n B\u00e1 Vi\u1ec7t cho bi\u1ebft, c\u00e1c qu\u1ed1c gia t\u1ea1i ch\u00e2u \u00c2u, B\u1eafc M\u1ef9, Trung Qu\u1ed1c, \u1ea4n \u0110\u1ed9, H\u00e0n Qu\u1ed1c, Malaysia, Myanmar\u2026 \u0111\u00e3 x\u00e2y d\u1ef1ng c\u1ea7u c\u1ea1n d\u1ea7m UHPC nh\u1ecbp l\u1edbn v\u1edbi nhi\u1ec1u m\u1eb7t c\u1eaft d\u1ea7m kh\u00e1c nhau.<\/p>\n\n\n\n

Trong \u0111\u00f3, Malaysia x\u00e2y d\u1ef1ng h\u01a1n 200 c\u1ea7u UHPC l\u1edbn v\u1edbi nh\u1ecbp t\u1eeb 30m \u2013 105m. Trung Qu\u1ed1c l\u00e0m c\u1ea7u c\u1ea1n cao t\u1ed1c nh\u1ecbp tr\u00ean 30m. \u1ea4n \u0110\u1ed9 l\u00e0m c\u1ea7u nh\u1ecbp 55m v\u00e0 70m. Nh\u1eefng c\u1ea7u n\u00e0y \u0111\u1ec1u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1ed5n \u0111\u1ecbnh trong h\u01a1n 10 n\u0103m qua.<\/p>\n\n\n\n

C\u1ea7u UHPC c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m n\u1ed5i tr\u1ed9i nh\u01b0 thi c\u00f4ng nhanh, kh\u00f4ng ph\u1ee5 thu\u1ed9c th\u1eddi ti\u1ebft, kh\u00f4ng d\u00f9ng c\u00e1t \u0111\u1eafp. C\u1ea7u c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao, ch\u1ed1ng \u0103n m\u00f2n bi\u1ec3n v\u00e0 \u0103n m\u00f2n chua ph\u00e8n t\u1ed1t, tu\u1ed5i th\u1ecd cao (150 n\u0103m tr\u1edf l\u00ean), chi ph\u00ed b\u1ea3o tr\u00ec th\u1ea5p, chi ph\u00ed gi\u1ea3i ph\u00f3ng m\u1eb7t b\u1eb1ng gi\u1ea3m r\u1ea5t nhi\u1ec1u. Ngo\u00e0i ra, t\u0129nh t\u1ea3i m\u1eb7t c\u1ea7u gi\u1ea3m 60% n\u00ean chi ph\u00ed x\u00e2y d\u1ef1ng m\u00f3ng v\u00e0 k\u1ebft c\u1ea5u m\u1ed1 tr\u1ee5 c\u0169ng gi\u1ea3m.<\/p>\n\n\n\n

\"X\u00e2y<\/td><\/tr>
D\u1ea7m UHPC c\u00f3 nhi\u1ec1u t\u00ednh n\u0103ng v\u01b0\u1ee3t tr\u1ed9i, ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 gi\u1ea3m ph\u00e1t th\u1ea3i kh\u00ed CO2 so v\u1edbi b\u00ea t\u00f4ng th\u00f4ng th\u01b0\u1eddng.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Th\u1eddi gian s\u1ea3n xu\u1ea5t d\u1ea7m UHPC nhanh, c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t do \u0111\u01b0\u1ee3c module h\u00f3a d\u1eabn t\u1edbi c\u00f4ng tr\u00ecnh s\u1edbm \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh s\u1eed d\u1ee5ng. Hi\u1ec7n nay, c\u00e1c nh\u00e0 m\u00e1y b\u00ea t\u00f4ng l\u1edbn t\u1ea1i Vi\u1ec7t Nam \u0111\u1ec1u c\u00f3 th\u1ec3 ch\u1ebf t\u1ea1o c\u1ea5u ki\u1ec7n d\u1ea7m UHPC, ph\u00e2n b\u1ed1 \u1edf c\u1ea3 mi\u1ec1n B\u1eafc v\u00e0 mi\u1ec1n Nam.<\/p>\n\n\n\n

M\u1eb7t kh\u00e1c, ph\u01b0\u01a1ng \u00e1n c\u1ea7u c\u1ea1n d\u1ea7m UHPC kh\u00f4ng s\u1eed d\u1ee5ng c\u00e1t san l\u1ea5p, kh\u00f4ng \u1ea3nh h\u01b0\u1edfng ti\u00eau tho\u00e1t l\u0169, kh\u00f4ng ph\u1ea3i l\u00e0m \u0111\u01b0\u1eddng gom d\u00e2n sinh v\u00e0 h\u1ea7m chui d\u00e2n sinh, ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean \u0111\u1ea5t v\u00e0 gi\u1ea3m ph\u00e1t th\u1ea3i kh\u00ed CO2 kho\u1ea3ng 20 \u2013 25% so v\u1edbi c\u1ea7u d\u1ea7m b\u00ea t\u00f4ng c\u1ed1t th\u00e9p th\u00f4ng th\u01b0\u1eddng (t\u00ednh cho 1m2 m\u1eb7t c\u1ea7u).<\/p>\n\n\n\n

V\u1edbi vi\u1ec7c x\u00e2y d\u1ef1ng c\u1ea7u c\u1ea1n UHPC, ng\u01b0\u1eddi d\u00e2n v\u1eabn c\u00f3 th\u1ec3 canh t\u00e1c d\u01b0\u1edbi h\u1ea7m chui, kh\u00f4ng ph\u1ea3i l\u00e0m h\u1ec7 th\u1ed1ng r\u00e0o l\u01b0\u1edbi an to\u00e0n d\u1ecdc hai b\u00ean tuy\u1ebfn cao t\u1ed1c, kh\u00f4ng ng\u0103n c\u00e1ch m\u00f4i tr\u01b0\u1eddng x\u00e3 h\u1ed9i c\u1ee7a l\u00e0ng x\u00f3m \u0111\u00f4 th\u1ecb.<\/p>\n\n\n\n

Ngo\u00e0i ra, c\u00e1c s\u1ed1 li\u1ec7u ph\u00e2n t\u00edch v\u00e0 so s\u00e1nh c\u00f2n cho th\u1ea5y, t\u1ed5ng m\u1ee9c \u0111\u1ea7u t\u01b0 c\u1ee7a c\u1ea7u c\u1ea1n UHPC nh\u1ecbp l\u1edbn v\u1edbi v\u00f9ng \u0111\u1ea5t y\u1ebfu s\u00e2u, chi\u1ec1u cao c\u00e1t \u0111\u1eafp kho\u1ea3ng 4m t\u01b0\u01a1ng \u0111\u01b0\u01a1ng t\u1ed5ng m\u1ee9c \u0111\u1ea7u t\u01b0 ph\u01b0\u01a1ng \u00e1n c\u00e1t \u0111\u1eafp v\u00e0 r\u1ebb h\u01a1n ph\u01b0\u01a1ng \u00e1n c\u1ea7u c\u1ea1n d\u1ea7m Super T.<\/p>\n\n\n\n

\"X\u00e2y<\/td><\/tr>
C\u1ea7u V\u00e0ng x\u00e2y d\u1ef1ng \u1edf t\u1ec9nh Ph\u00fa Th\u1ecd v\u00e0o n\u0103m 2022 v\u1edbi d\u1ea7m UHPC 4 nh\u1ecbp 30m.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

V\u1edbi nh\u1eefng c\u01a1 s\u1edf n\u00eau tr\u00ean, TS. Tr\u1ea7n B\u00e1 Vi\u1ec7t kh\u1eb3ng \u0111\u1ecbnh, c\u1ea7u c\u1ea1n d\u1ea7m UHPC nh\u1ecbp l\u1edbn r\u1ea5t hi\u1ec7u qu\u1ea3 \u0111\u1ec3 \u00e1p d\u1ee5ng cho v\u00f9ng \u0111\u1ea5t y\u1ebfu, y\u00eau c\u1ea7u \u0111\u1ea5t \u0111\u1eafp cao \u0111\u1ec3 v\u01b0\u1ee3t l\u0169 v\u00e0 h\u1ea7m chui d\u00e2n sinh. Ph\u01b0\u01a1ng \u00e1n n\u00e0y s\u1ebd gi\u1ea3i quy\u1ebft t\u1ed1t v\u1ea5n \u0111\u1ec1 ngu\u1ed3n c\u00e1t san n\u1ec1n \u0111ang khan hi\u1ebfm, \u0111\u1ea3m b\u1ea3o ti\u1ebfn \u0111\u1ed9 theo y\u00eau c\u1ea7u c\u1ee7a Ch\u00ednh ph\u1ee7 v\u00e0 gi\u1ea3m v\u1ed1n vay t\u00e0i ch\u00ednh.<\/p>\n\n\n\n

C\u1ea7u c\u1ea1n s\u1eed d\u1ee5ng trong cao t\u1ed1c s\u1ebd gi\u1ea3m s\u1ee5t l\u00fan, kh\u00f4ng ng\u0103n c\u1ea3n l\u0169 v\u00e0 truy\u1ec1n l\u0169, kh\u00f4ng chia c\u1eaft c\u1ea3nh quan, m\u00f4i tr\u01b0\u1eddng, c\u1ed9ng \u0111\u1ed3ng x\u00e3 h\u1ed9i hai b\u00ean cao t\u1ed1c… V\u1edbi vi\u1ec7c \u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long c\u00f3 nhi\u1ec1u k\u00eanh r\u1ea1ch th\u00ec nhu c\u1ea7u x\u00e2y d\u1ef1ng c\u1ea7u s\u1ebd r\u1ea5t l\u1edbn v\u00e0 c\u1ea7u c\u1ea1n c\u00f4ng ngh\u1ec7 UHPC nh\u1ecbp l\u1edbn ch\u00ednh l\u00e0 gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p nh\u1ea5t.<\/p>\n\n\n\n

T\u00ednh \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i, H\u1ed9i B\u00ea t\u00f4ng Vi\u1ec7t Nam c\u00f9ng \u0110\u1ea1i h\u1ecdc Giao th\u00f4ng v\u1eadn t\u1ea3i v\u00e0 m\u1ed9t s\u1ed1 \u0111\u01a1n v\u1ecb t\u01b0 v\u1ea5n x\u00e2y d\u1ef1ng \u0111\u00e3 c\u00f3 th\u1ec3 l\u00e0m ch\u1ee7 thi\u1ebft k\u1ebf, ch\u1ebf t\u1ea1o d\u1ea7m UHPC, ti\u1ebft di\u1ec7n ch\u1eef U > 50m. H\u1ed9i \u0111\u00e3 chuy\u1ec3n giao c\u00f4ng ngh\u1ec7 cho c\u00e1c \u0111\u01a1n v\u1ecb thi\u1ebft k\u1ebf, x\u00e2y d\u1ef1ng h\u01a1n 100 c\u00e2y c\u1ea7u tr\u00ean 17 t\u1ec9nh, th\u00e0nh t\u1ea1i Vi\u1ec7t Nam, cho k\u1ebft qu\u1ea3 s\u1eed d\u1ee5ng \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n

T\u00e1c gi\u1ea3: D\u1ecbch Phong, Ngu\u1ed3n: https:\/\/baoxaydung.com.vn\/xay-dung-cau-can-nhip-lon-dam-uhpc-cho-dong-bang-song-cuu-long-378682.html<\/p>","protected":false},"excerpt":{"rendered":"

\u0110\u00f3 l\u00e0 \u00fd ki\u1ebfn c\u1ee7a TS. Tr\u1ea7n B\u00e1 Vi\u1ec7t, Ph\u00f3 Ch\u1ee7 t\u1ecbch H\u1ed9i B\u00ea t\u00f4ng Vi\u1ec7t Nam v\u1ec1 gi\u1ea3i ph\u00e1p c\u1ea7u c\u1ea1n cho ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng h\u1ec7 th\u1ed1ng h\u1ea1 t\u1ea7ng giao th\u00f4ng t\u1ea1i n\u01b0\u1edbc ta, \u0111\u1eb7c bi\u1ec7t l\u00e0 khu v\u1ef1c \u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long. Hi\u1ec7n nay, vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1t bi\u1ec3n l\u00e0m v\u1eadt…<\/p>","protected":false},"author":2,"featured_media":679,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1,5],"tags":[],"class_list":["post-678","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc","category-tin-nganh"],"acf":[],"_links":{"self":[{"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/posts\/678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/comments?post=678"}],"version-history":[{"count":1,"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/posts\/678\/revisions"}],"predecessor-version":[{"id":680,"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/posts\/678\/revisions\/680"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/media\/679"}],"wp:attachment":[{"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/media?parent=678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/categories?post=678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cenprecast.com\/en\/wp-json\/wp\/v2\/tags?post=678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}