鄰近運營地鐵的軟土深大基坑微變形控制設(shè)計技術(shù)
謝小林
- 摘 要
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（同濟大學建筑設(shè)計研究院（集團）有限公司， 上海 200092）[提要] 針對城市大型地下空間開發(fā)建設(shè)過程中面臨的保護運營地鐵安全的難題，從運營地鐵隧道的構(gòu)造特點和變形保護技術(shù)標準入手，根據(jù)軟土深大基坑的地質(zhì)及工程特點，針對基坑卸載變形產(chǎn)生和發(fā)展的不同成因機理，研究總結(jié)了一系列針對性強的軟土深大基坑微變形控制設(shè)計技術(shù)，在工程應用中取得了良好的微變形控制成效，保障了城市地鐵的安全正常運營。[關(guān)鍵詞] 深大基坑； 變形控制； 地鐵運營安全中圖分類號：TU473.2 文獻標識碼：A 文章編號：1002-848X(2013)S2-0136-06作者簡介：謝小林，碩士，工程師，Email: thank_xl@163.com。Deformation control technologies of deep and large soft clay excavations adjacent to operating metroXie Xiaolin(Tongji Architectural Design (Group) Co. , Ltd. , Shanghai 200092, China)Abstract: To guarantee the safety of operating metro is very important and difficult during the adjacent large underground complex construction. The structure characteristics and deformation control standards of metro tunnel were researched and summarized firstly, then base on the geologic characteristics of soft clay and the research of different origin lead to excavation deformation, a series of deformation control technologies of deep and large soft clay excavations were put forward. The effectiveness of these technologies has been proved by engineering practice. By application of these technologies, the safety of operating metro was guaranteed.
Keywords: deep and large excavation; deformation control; safety of operating metro
