- 摘 要
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王文燦1，仲曉梅2，賈虎軍1
（1 中建六局地鐵公司， 天津 300457； 2 天津城建大學， 天津 300384）
[摘要] 在地鐵換乘站設(shè)計中，車站明挖大基坑和隧道明挖段（窄）之間或者明挖段與附屬風井（淺）之間由圍護結(jié)構(gòu)相隔，而圍護結(jié)構(gòu)兩側(cè)的支撐一般不會對稱設(shè)置，即兩側(cè)受力不能自平衡，故相鄰基坑需不同期進行開挖支護。由于特定原因相鄰基坑需同步開挖，合理安排施工順序和增設(shè)必要的措施，以滿足相鄰基坑的同步開挖，在保證質(zhì)量和安全的情況下節(jié)約工期，是本文研究的重點。
[關(guān)鍵詞]地鐵換乘站； 相鄰基坑； 同步開挖； 技術(shù)； 監(jiān)測
中圖分類號： TU921 文獻標識碼： A文章編號： 1002-848X(2015)S2-0128-03
作者簡介：王文燦，碩士，工程師，一級建造師，注冊安全工程師，Email:wangwencan22@163.com。
Research and actual measurement analysis on synchronous construction
technology of adjacent foundation pit of a metro interchange station
Wang Wencan1, Zhong Xiaomei2, Jia Hujun1
(1 Metro Inc of CSCES6, Tianjin 300457, China;
2 Tianjin University of Urban Construction, Tianjin 300384, China)
Abstract: In the design of metro interchange station, there is retaining wall between metro open cut pit and section of cut and cover tunnel (narrow), or between section of cut and cover tunnel and adjacent structure pit (shallow). So the support does not generally symmetrical set on both sides of retaining wall. It is not self-balancing on both sides of retaining wall, so excavation and supporting of adjacent foundation pit should be carried out in different period. Due to certain reasons, adjacent foundation pit need be synchronized excavation. Reasonable arrangement of construction sequence and add of the necessary measures to meet synchronization excavation of adjacent foundation pit, save time in the case of ensuring quality and safety are the key points of this research.
Keywords: metro interchange station; adjacent foundation pit; simultaneous excavation; technology; measurement
