鄰近擬建地鐵深基坑的現(xiàn)有基坑加固與改造設(shè)計(jì)
湯翔宇, 仇志斌
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（蘇州設(shè)計(jì)研究院股份有限公司，蘇州 215021）[摘要]蘇州工業(yè)園區(qū)某工程地下室由于局部地下一層拆除，形成8m深的現(xiàn)有基坑。其南側(cè)9～14m遠(yuǎn)深達(dá)15.3m的深基坑即將開挖。現(xiàn)有基坑也將繼續(xù)挖深4m。本文詳細(xì)介紹了現(xiàn)有基坑的加固，以及現(xiàn)有基坑繼續(xù)挖深時(shí)的基坑支護(hù)設(shè)計(jì)。計(jì)算分析及監(jiān)測(cè)結(jié)果表明，本設(shè)計(jì)安全可靠，可供類似工程設(shè)計(jì)參考。[關(guān)鍵詞]深基坑;支護(hù)結(jié)構(gòu);加固中圖分類號(hào)：TU753.8 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S1-0898-04Reinforcement and renovation of an existing pit adjacent to a new subway pitTang Xiangyu , Qiu Zhibing（Suzhou Institute of Design Co.,Ltd.,Suzhou 215021,China）Abstract: A pit of 8 meters in depth was formed due to partly demolishing an existing basement. Further excavation, which is adjacent to a new subway pit, 15.3 meters in depth, 9 to 14 meters away, is supposed to be excavated lately. The reinforcement method of the existing pit, and the bracing structure of the following excavation of the pit are reported in this paper. The successful practice in this project, together with the site monitoring date provided can be utilized as reference to similar projects.Keywords: deep pit; bracing structure; reinforcement作者簡(jiǎn)介： 湯翔宇，工學(xué)碩士，研究員級(jí)高級(jí)工程師，Email:tyc20010408@163.com。
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