襄樊市某基坑抢险加固方案的实践

Practice of Scheme of Emergency Reinforce about Foundation in Xiangfan City

分析襄樊市某深基坑支护失稳的原因,介绍基坑抢险加固处理措施,同时揭示在深基坑支护设计施工过程中应严格按程序办事,不能片面追求节约而形成安全隐患。基坑及地下室施工尽量选择在枯水季节,减小基坑开挖暴露的时间。基坑失稳后不能盲目处理,要分析基坑失稳的原因及危害性,针对基坑侧壁的地质条件、基坑周边环境、场区施工条件等多种因素,制定合理的抢险加固方案。

The authors analyze the cause of failure of foundation pit, introduce theemergency reinforce treatment of foundation pit, meanwhile reveal the design and construction process of deep foundation pit should be strictly in accordance with procedures,pay attention to security instead ofseeking thrift one-sidedly. Construction of foundation and basement is chosen in the dry season in order to reduce the exposure time of excavation. The cause of instability and harm about foundation pit are analyzed in order to deal with the failed foundation pit. Aiming at many factors including geological conditions about sidewall of foundation pit, surrounding environment of foundation pit and construction condition in site, a reasonable scheme of emergency reinforce is made.