环境灾变影响下的工程施工安全控制技术研究  

Research on Construction Safety Control Technology under the Impact of Environmental Disasters

作　　者：彭光熹 PENG Guangxi(China Railway 18th Bureau Group the 4th Engineering Co.,Ltd.,Tianjin,300202,China)

机构地区：[1]中铁十八局集团第四工程有限公司,天津300202

出　　处：《石家庄铁路职业技术学院学报》2025年第1期91-96,103,共7页Journal of Shijiazhuang Institute of Railway Technology

基　　金：河北省高等学校科学技术研究项目编号:CXY2023020;中铁十八局集团科技研发项目部项目编号:4-JF-2021-R1线-0-005;河北龙珩测绘服务有限公司科技项目编号:HBLX20240311

摘　　要：近年来我国极端天气频发,自然灾害引发了诸多工程事故。2023年7月31日,随着台风“杜苏芮”残余环流持续北上,北京地区迎来特大暴雨天气。暴雨后地下水位抬升,对基坑工程的安全稳定性产生诸多不利影响。以北京地区富水砂基坑为例,结合现场工程监测和数值模拟手段,探究了暴雨天气对明挖基坑位移、土体受力和安全系数的变化规律,并给出临界预警水位限制,该研究结果可对北京地区基坑工程安全施工防治措施提供指导。In recent years,the increasing frequency of extreme weather events in China has led to numerous engineering accidents.On July 31,2023,as the remnants of Typhoon Doksuri continued to move northward,Beijing experienced an intense rainstorm.The subsequent rise in groundwater levels posed significant stability risks to excavation projects.This study examines the impact of heavy rainfall on open-cut excavations in water-rich sandy soils in Beijing,integrating field monitoring and numerical simulations to analyze variations in displacement,soil stress,and safety factors.Critical warning water level limits are proposed,and the research results can provide guidance for safety measures in foundation pit engineering in the Beijing area.

关 键 词：基坑工程 基坑监测 深基坑 数值模拟 地下水 

分 类 号：U231[交通运输工程—道路与铁道工程]