矿山深基坑开挖施工监测分析

Monitoring and analysis of deep foundation pit excavation in mine

矿山深基坑工程施工极为复杂,对其进行科学的监测不仅有助于确保基坑施工的顺利,也有助于后续矿山开采施工的安全性和经济性。鉴于现阶段国内学界对此研究不够全面的现状,本文以A市地区矿山深基坑开挖施工项目,开展对其研究,详细论述了如何在矿山深基坑开挖施工中进行科学监测。研究表明:矿山深基坑开挖施工中,地表沉降随开挖而减小;建筑沉降向基坑方向移动;地下连续墙随开挖向上变形;地下水位沉降变化明显。据此监测结果,可为矿山深基坑开挖施工提供理论依据和前期指导。

The construction of deep foundation pit is very complicated,so scientific monitoring is not only helpful to ensure the smooth foundation pit construction,but also helpful to the safety and economy of subsequent mining construction.In view of the current situation that domestic academic research on this is not comprehensive,this paper carries out research on the construction project of deep foundation pit excavation in A city,and discusses in detail how to carry out scientific monitoring in the construction of deep foundation pit excavation.The results show that the surface settlement decreases with the excavation of deep foundation pit.Building settlement moves to the direction of foundation pit;The diaphragm wall deforms upward with excavation;The subsidence of groundwater level changes obviously.The monitoring results can provide theoretical basis and early guidance for the excavation of deep foundation pit.