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一、立项背景随着我国城市建设的发展,深基坑工程日益增多。在城市建筑物、道路及地下管线密集地区施工深基坑工程时,开挖及降水造成的地层位移会对周围环境产生不利影响,由此造成的基坑坍塌、建筑物、道路开裂、水电管网爆裂屡有发生,一些事故还造成了重大人员伤亡和财产损失。国务院颁布的《建设工程安全生产管理条例》将基坑工程列为危险性较大的分部分项工程,可见基坑安全已成为工程建设领域影响安全生产的一个重要方面。
First, the project background With the development of urban construction in our country, an increasing number of deep foundation pit project. During the construction of deep foundation pit works in urban buildings, roads and underground pipelines, the displacement of the ground due to excavation and precipitation will adversely affect the surrounding environment. As a result, the pit collapse, buildings, road cracking, water and electricity pipe Web bursts have repeatedly occurred, and some accidents have caused major casualties and property losses. The State Council promulgated the “Safety Management of Construction Projects” as a dangerous part of the foundation pit project as part of the project, we can see that the safety of the foundation pit has become an important aspect of the impact of safety in the construction area.