微型鋼管樁防護(hù)技術(shù)在臨近橋梁基礎(chǔ)施工中的應(yīng)用
金奕，解曉忱，于天恩，賴(lài)慶順
- 摘 要
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（北京城建集團(tuán)有限責(zé)任公司土木工程總承包部，北京100088）[摘要] 在2012年“7·21”特大暴雨災(zāi)害中，豐益橋、菜戶(hù)營(yíng)橋、蓮花橋等多個(gè)橋區(qū)都成為積水最嚴(yán)重的路段，個(gè)別橋區(qū)經(jīng)過(guò)十余個(gè)小時(shí)才恢復(fù)交通，給市民生活帶來(lái)不便。汲取“7·21”特大暴雨災(zāi)害中的教訓(xùn)，北京市政府將下凹式立交橋區(qū)雨洪工程的建設(shè)作為頭等大事。由于北京市區(qū)空間狹小、建筑密度大，特別是橋區(qū)附近已接近飽和，在一些橋區(qū)的改造過(guò)程中會(huì)對(duì)橋梁基礎(chǔ)產(chǎn)生不利影響，如北京市二環(huán)路左安門(mén)橋明開(kāi)槽管線(xiàn)工程采用微型鋼管樁防護(hù)，通過(guò)ANSYS有限元軟件分析驗(yàn)算調(diào)整微型鋼管樁技術(shù)參數(shù)，保證橋梁的安全穩(wěn)定。[關(guān)鍵詞] 微型鋼管樁作者簡(jiǎn)介：金奕，教授級(jí)高級(jí)工程師，學(xué)士，北京城建集團(tuán)有限責(zé)任公司土木工程總承包部總工程師，Email：bucgq@163.comMicro protective steel pipe pile near the bridge foundation construction technology applicationJin Yi, Xie Xiaochen, Yu Tianen, Lai Qingshun(Beijing Urban Construction Group Co., Ltd. General Contracting Civil Engineering, Beijing 100088, China)Abstract：In 2012 "7 • 21" heavy rainfall disasters, Fengyi bridge, Caihuying bridge camp, Lianhua Bridge area have become more than the most serious water sections, the individual bridge area after more than ten hours to restore the traffic, it's inconvenient for living people. Learn "7 • 21" heavy rainfall disaster lessons, the Beijing Municipal Government District rainwater sunken overpass construction project as a top priority. Since the narrow space ,big building density in Beijing, especially in the vicinity of the bridge is nearing saturation ,in some bridge area of the transformation process would adversely affect the bridge foundations, such as the Beijing Second Ring Road, Zuoanmen Square Ming slotted pipe bridge project miniature steel pipe pile protection by the ANSYS finite element analysis software to adjust miniature steel pipe piles technical parameters and to ensure security and stability of the bridge.Keywords：micro-steel pipe pile
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