地铁基坑工程安全风险视频监控组合布置优化研究

针对地铁施工现场环境复杂及施工风险监控难等问题，通过分析不同施工场景风险特点和监控需求，基于集合覆盖理论方法，提出了远中近程视频监控组合布置优化方法。通过开展地铁基坑工程施工现场安全风险视频监控研究，得出远中近程视频监控组合布置方案中视频监控布置点具体数量和位置信息，并结合实际工程案例验证该组合布置优化方法的可行性。以提升基坑工程施工风险管控能力，并为基坑施工现场风险安全管理提供借鉴和参考。

Research on the Optimization for the Combination Layout of Safety Risk Video Monitoring System in Subway Foundation Pit Engineering

In response to the complex environment of subway construction site and the difficulty of construction riskmonitoring，,based on the analysis of the risk characteristics and monitoring requirements in different construction scenarios，anoptimization method of remote，medium，and short-range video surveillance combined layout is proposed using the methodology ofset coverage theory. Based on the research on video surveillance of safety risks in the construction site of subway foundation pitengineering，the specific number and location information of video surveillance placement points in the far，middle，and short-rangevideo surveillance combined layout scheme is obtained. The feasibility of this method is tested by multiple practical cases. Thepurpose of this paper is to improve the ability of risk control of foundation pit engineering construction，and provide reference for therisk safety management of foundation pit construction site.