Monitoring Analysis of Foundation Pit Retaining Structure
[Purposes]In order to ensure the safety of foundation pit construction,it is necessary to moni-tor the deformation of foundation pit retaining structure and study the variation law.[Methods]Taking the deep foundation pit excavation of a housing construction project in Xinxiang City as an object,this paper combines the local geological conditions,and carries out regular monitoring of the deformation of the enclosure structure and the settlement of the surrounding buildings during the excavation of the foun-dation pit by establishing a deformation measurement control network.[Findings]It was found that:the wall of the enclosure structure to the pit displacement trend is obvious,the maximum displacement point moves down with the excavation depth,and the maximum displacement of the foundation pit is 1～2 m away from the excavation face;the settlement is small when the distance is far,and the settlement is large when the distance is close.The settlement tends to stabilize after the end of the backfilling of the earth.[Con-clusions]This study discusses three types of common problems and proposes corrective measures for pit monitoring,which improves the effectiveness of the application of pit monitoring technology and ensures the stability and safety of the pit construction process.
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万方数据
