{"id":19360,"date":"2022-11-29T16:58:01","date_gmt":"2022-11-29T09:58:01","guid":{"rendered":"https:\/\/adscg.com\/?p=19360"},"modified":"2022-12-05T13:48:08","modified_gmt":"2022-12-05T06:48:08","slug":"khoa-ky-thuat-cong-nghe-tham-gia-buoi-bao-cao-seminar-dac-diem-bien-doi-ap-luc-nuoc-lo-rong-du-trong-dat-cat-cho-khu-vuc-thanh-pho-quy-nhon-tinh-binh-dinh-duoi-tac-dung-tai-trong-chu-ky","status":"publish","type":"post","link":"https:\/\/adscg.com\/khoa-ky-thuat-cong-nghe-tham-gia-buoi-bao-cao-seminar-dac-diem-bien-doi-ap-luc-nuoc-lo-rong-du-trong-dat-cat-cho-khu-vuc-thanh-pho-quy-nhon-tinh-binh-dinh-duoi-tac-dung-tai-trong-chu-ky\/","title":{"rendered":"B\u00e1o c\u00e1o Seminar \u201c\u0110\u1eb7c \u0111i\u1ec3m bi\u1ebfn \u0111\u1ed5i \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 trong \u0111\u1ea5t c\u00e1t cho khu v\u1ef1c Th\u00e0nh ph\u1ed1 Quy Nh\u01a1n t\u1ec9nh B\u00ecnh \u0110\u1ecbnh d\u01b0\u1edbi t\u00e1c d\u1ee5ng t\u1ea3i tr\u1ecdng chu k\u1ef3\u201d"},"content":{"rendered":"

S\u00e1ng 29\/11, Khoa K\u1ef9 thu\u1eadt – C\u00f4ng ngh\u1ec7 t\u1ed5 ch\u1ee9c bu\u1ed5i B\u00e1o c\u00e1o Seminar \u201c\u0110\u1eb7c \u0111i\u1ec3m bi\u1ebfn \u0111\u1ed5i \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 trong \u0111\u1ea5t c\u00e1t cho khu v\u1ef1c Th\u00e0nh ph\u1ed1 Quy Nh\u01a1n t\u1ec9nh B\u00ecnh \u0110\u1ecbnh d\u01b0\u1edbi t\u00e1c d\u1ee5ng t\u1ea3i tr\u1ecdng chu k\u1ef3\u201d<\/strong>.<\/p>\n

T\u00e1c gi\u1ea3 \u0111\u1ec1 t\u00e0i nghi\u00ean c\u1ee9u khoa h\u1ecdc n\u00e0y l\u00e0 ThS. H\u1ee9a Th\u00e0nh Th\u00e2n – Gi\u1ea3ng vi\u00ean \u0111\u1ea3m nhi\u1ec7m gi\u1ea3ng d\u1ea1y v\u00e0 nghi\u00ean c\u1ee9u c\u00e1c \u0111\u1ec1 t\u00e0i li\u00ean quan \u0111\u1ebfn C\u01a1 \u0111\u1ea5t- \u0110\u1ecba ch\u1ea5t c\u00f4ng tr\u00ecnh thu\u1ed9c khoa K\u1ef9 thu\u1eadt c\u00f4ng ngh\u1ec7 (Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Quang Trung).<\/p>\n

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Theo ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf TCVN 9386-2012 cho c\u00f4ng tr\u00ecnh ch\u1ecbu \u0111\u1ed9ng \u0111\u1ea5t c\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn \u1ee9ng su\u1ea5t c\u1eaft tu\u1ea7n ho\u00e0n do \u0111\u1ed9ng \u0111\u1ea5t \u03c4e, nguy c\u01a1 h\u00f3a l\u1ecfng, bi\u1ec3u \u0111\u1ed3 th\u1ef1c nghi\u1ec7m quan h\u1ec7 gi\u1eefa t\u1ef7 \u1ee9ng su\u1ea5t kh\u00e1ng tu\u1ea7n ho\u00e0n CRR v\u1edbi gi\u00e1 tr\u1ecb SPT N1,60,… ch\u01b0a h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch x\u00e1c \u0111\u1ecbnh t\u1ef7 \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng th\u1eb7ng d\u01b0 ru theo s\u1ed1 v\u00f2ng l\u1eb7p chu k\u1ef3 n cho n\u1ec1n \u0111\u1ea5t lo\u1ea1i c\u00e1t, c\u00f3 x\u00e9t kh\u1ea3 n\u0103ng h\u00f3a l\u1ecfng khi \u0111\u1ed9ng \u0111\u1ea5t.<\/p>\n

Hi\u1ec7n nay, nhi\u1ec1u n\u01a1i \u1edf khu v\u1ef1c th\u00e0nh ph\u1ed1 Quy Nh\u01a1n (t\u1ec9nh B\u00ecnh \u0110\u1ecbnh) c\u00f3 \u0111\u1ecba ch\u1ea5t n\u1ec1n \u0111\u1ea5t lo\u1ea1i c\u00e1t d\u00e0y h\u01a1n 10m trong khu v\u1ef1c b\u1ecb \u1ea3nh h\u01b0\u1edfng \u0111\u1ed9ng \u0111\u1ea5t, \u0111\u00e3 x\u00e2y d\u1ef1ng nhi\u1ec1u c\u00f4ng tr\u00ecnh nh\u00e0 cao t\u1ea7ng. Tuy nhi\u00ean khi thi\u1ebft k\u1ebf t\u00ednh to\u00e1n s\u1ee9c ch\u1ecbu t\u1ea3i d\u1ecdc tr\u1ee5c c\u1ee7a c\u1ecdc cho c\u00f4ng tr\u00ecnh lo\u1ea1i n\u00e0y kh\u00f4ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u1ea3 n\u0103ng h\u00f3a l\u1ecfng c\u1ee7a n\u1ec1n \u0111\u1ea5t lo\u1ea1i c\u00e1t.<\/p>\n

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Ph\u1ea1m vi c\u1ee7a b\u00e0i b\u00e1o n\u00e0y l\u00e0 thi\u1ebft l\u1eadp h\u1ec7 s\u1ed1 hi\u1ec7u ch\u1ec9nh c\u1ee7a t\u1ef7 \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 (kru) gi\u1eefa gi\u00e1 tr\u1ecb c\u1ee7a t\u1ef7 \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 \u1edf t\u1ea7n s\u1ed1 2 Hz v\u00e0 \u1edf t\u1ea7n s\u1ed1 1 Hz v\u1edbi t\u1ef7 CSR cho n\u1ec1n \u0111\u1ea5t lo\u1ea1i c\u00e1t, h\u1ea1t r\u1eddi c\u1ee7a n\u1ec1n \u0111\u1ecba ch\u1ea5t \u1edf khu v\u1ef1c ven bi\u1ec3n t\u1ea1i th\u00e0nh ph\u1ed1 Quy Nh\u01a1n c\u00f3 x\u00e9t kh\u1ea3 n\u0103ng h\u00f3a l\u1ecfng b\u1eb1ng th\u00ed nghi\u1ec7m ba tr\u1ee5c gia t\u1ea3i l\u1eb7p cho t\u1ea7n s\u1ed1 f l\u00e0 1 Hz v\u00e0 2 Hz.<\/p>\n

S\u1eed d\u1ee5ng k\u1ebft qu\u1ea3 c\u1ee7a th\u00ed nghi\u1ec7m ba tr\u1ee5c gia t\u1ea3i l\u1eb7p theo ti\u00eau chu\u1ea9n ASTM D5311 v\u1edbi l\u1ed9 tr\u00ecnh \u1ee9ng su\u1ea5t n\u00e9n – k\u00e9o chu k\u1ef3 (CTC-RTE) v\u00e0 l\u1ed9 tr\u00ecnh \u1ee9ng su\u1ea5t k\u00e9o chu k\u1ef3 (RTE) nh\u1eb1m \u0111\u00e1nh gi\u00e1 cho t\u1ef7 \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 (ru) v\u1edbi t\u1ef7 \u1ee9ng su\u1ea5t c\u1eaft chu k\u1ef3 (CSR) cho 10 m\u1eabu c\u00e1t t\u1ea1i khu v\u1ef1c c\u1ee7a th\u00e0nh ph\u1ed1 Quy Nh\u01a1n, k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ch\u1ec9 ra quan h\u1ec7 gi\u1eefa ru v\u1edbi CSR v\u00e0 s\u1ed1 v\u00f2ng l\u1eb7p chu k\u1ef3 (n) trong kho\u1ea3ng t\u1ea7n s\u1ed1 (f) b\u1eb1ng 1 Hz v\u00e0 2 Hz. T\u1eeb \u0111\u00f3, thi\u1ebft l\u1eadp cho quan h\u1ec7 gi\u1eefa h\u1ec7 s\u1ed1 hi\u1ec7u ch\u1ec9nh t\u1ef7 \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 (kru) – kru l\u00e0 t\u1ef7 s\u1ed1 c\u1ee7a t\u1ef7 \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 \u1edf t\u1ea7n s\u1ed1 2 Hz v\u00e0 t\u1ef7 \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 \u1edf t\u1ea7n s\u1ed1 1 Hz, v\u1edbi CSR l\u00e0 m\u1ed9t d\u1ea1ng h\u00e0m s\u1ed1 parabol. Gi\u00e1 tr\u1ecb c\u1ee7a kru \u0111\u01b0\u1ee3c l\u00e0 1.00 \u00f7 2.42 v\u1edbi gi\u00e1 tr\u1ecb c\u1ee7a CSR \u0111\u01b0\u1ee3c l\u00e0 0.17 \u00f7 0.33 khi xem x\u00e9t v\u1edbi \u0111\u1ed9 ch\u1eb7t t\u01b0\u01a1ng \u0111\u1ed1i Dr = 0.172 \u00f7 0.373 cho CTC-RTE. Gi\u00e1 tr\u1ecb c\u1ee7a kru \u0111\u01b0\u1ee3c l\u00e0 0.21 \u00f7 0.99 v\u1edbi gi\u00e1 tr\u1ecb c\u1ee7a CSR \u0111\u01b0\u1ee3c l\u00e0 0.05 \u00f7 0.22 khi xem x\u00e9t v\u1edbi \u0111\u1ed9 ch\u1eb7t t\u01b0\u01a1ng \u0111\u1ed1i Dr = 0.255 \u00f7 0.316 cho RTE.<\/p>\n

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D\u1ef1a tr\u00ean c\u01a1 s\u1edf l\u00fd thuy\u1ebft, c\u01a1 s\u1edf th\u00ed nghi\u1ec7m \u0111\u00e3 \u0111\u01b0a ra k\u1ebft lu\u1eadn nh\u01b0 sau: T\u1ef7 CSR gi\u1ea3m khi s\u1ed1 v\u00f2ng l\u1eb7p n t\u0103ng, gi\u00e1 tr\u1ecb c\u1ee7a CSR c\u1ee7a t\u1ea7n s\u1ed1 f = 1 Hz l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb c\u1ee7a CSR c\u1ee7a t\u1ea7n s\u1ed1 f = 2 Hz cho c\u00f9ng s\u1ed1 v\u00f2ng chu k\u1ef3 n (CTC-RTE, RTE). T\u1ef7 ru t\u0103ng khi s\u1ed1 v\u00f2ng l\u1eb7p n t\u0103ng, gi\u00e1 tr\u1ecb c\u1ee7a ru cho t\u1ea7n s\u1ed1 f = 1 Hz l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb c\u1ee7a ru cho t\u1ea7n s\u1ed1 f = 2 Hz cho c\u00f9ng s\u1ed1 v\u00f2ng chu k\u1ef3 n (CTC-RTE, RTE). Gi\u00e1 tr\u1ecb c\u1ee7a ruq,f=2Hz l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb c\u1ee7a ruq,f=1Hz khi s\u1ed1 v\u00f2ng l\u1eb7p chu k\u1ef3 n t\u0103ng (CTC-RTE, RTE). L\u1ed9 tr\u00ecnh \u1ee9ng su\u1ea5t CTC – RTE th\u00ec gi\u00e1 tr\u1ecb c\u1ee7a ru,f=1Hz l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb c\u1ee7a ru,f=2Hz khi CSR > 0.17. T\u1ef7 s\u1ed1 kru t\u0103ng khi CSR t\u0103ng v\u00e0 khi CSR = 0.17 th\u00ec gi\u00e1 tr\u1ecb c\u1ee7a kru = 1.0 (Dr = 0.172 \u00f7 0.373). L\u1ed9 tr\u00ecnh \u1ee9ng su\u1ea5t RTE th\u00ec gi\u00e1 tr\u1ecb c\u1ee7a ru,f=1Hz l\u1edbn h\u01a1n gi\u00e1 tr\u1ecb c\u1ee7a ru,f=2Hz khi CSR > 0.05. T\u1ef7 s\u1ed1 kru t\u0103ng khi CSR t\u0103ng v\u00e0 khi CSR = 0.05 th\u00ec gi\u00e1 tr\u1ecb c\u1ee7a kru = 1 (Dr = 0.255 \u00f7 0.316).<\/p>\n

\"\"<\/p>\n

TR\u1ea6N TH\u1ebe H\u1ed8I<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"S\u00e1ng 29\/11, Khoa K\u1ef9 thu\u1eadt – C\u00f4ng ngh\u1ec7 t\u1ed5 ch\u1ee9c bu\u1ed5i B\u00e1o c\u00e1o Seminar \u201c\u0110\u1eb7c \u0111i\u1ec3m bi\u1ebfn \u0111\u1ed5i \u00e1p l\u1ef1c n\u01b0\u1edbc l\u1ed7 r\u1ed7ng d\u01b0 trong \u0111\u1ea5t c\u00e1t cho khu v\u1ef1c Th\u00e0nh ph\u1ed1 Quy Nh\u01a1n t\u1ec9nh B\u00ecnh \u0110\u1ecbnh d\u01b0\u1edbi t\u00e1c d\u1ee5ng t\u1ea3i tr\u1ecdng chu k\u1ef3\u201d.","protected":false},"author":12,"featured_media":19364,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"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-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-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-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-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-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-gradient":""}},"footnotes":""},"categories":[42,62,366,365,81,390,196,321],"tags":[859,916],"_links":{"self":[{"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/posts\/19360"}],"collection":[{"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/comments?post=19360"}],"version-history":[{"count":5,"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/posts\/19360\/revisions"}],"predecessor-version":[{"id":19373,"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/posts\/19360\/revisions\/19373"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/media\/19364"}],"wp:attachment":[{"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/media?parent=19360"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/categories?post=19360"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/adscg.com\/wp-json\/wp\/v2\/tags?post=19360"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}