某地铁车站基坑坍塌引发的施工安全问题

Construction Safety Analysis Arising from the Foundation Pit Collapse of a Subway Station

针对北京某地铁车站基坑坍塌事故,从周边环境、设计及施工等因素分析引发基坑坍塌的原因,提出未来基坑设计及施工需从以下几个方面加强,防患于未然:进行基坑的信息化施工,完善监测项目及警戒值,通过远程监控,实现信息的及时反馈与处理;在基坑施工过程中,加强时空规律的探索;注意基坑周围环境探测,及时消除各种安全隐患;采用动态设计的方法,建立基坑动态管理体系及严格的管理流程,实现基坑施工的规范化、科学化。

Possible reasons for the collapse occurring on a Beijing subway station were analyzed m terms of surrounding environment and design. The design and construction of the foundation pit should be strengthened in the following aspects in the future： adopting information construction of the foundation pit; improving monitoring and warning values; giving timely feedback and dealing with information through remote monitoring;, grasping space-time role in the process of the foundation pit construction; enhancing the exploration of the surrounding environment of the foundation pit and eliminating all kinds of security hidden troubles in time; adopting dynamic design methods to establish the dynamic management system and strict management procedures to achieve standard and scientific construction of the foundation pit.