Deformation Monitoring and Analysis of High Rise Building Deep Foundation Pit Support Engineering in Soft Soil Area
Based on the construction practice of a high-rise building,the deformation monitoring of foundation pit envelope,surrounding soil and structures is carried out.The results show that with the continuous increase of excavation depth,the vertical displacement at the top of the envelope structure first increases and then decreases,the horizontal displacement at the top of the envelope structure first increases and then gradually becomes stable,the settlement of the road surface around the foundation pit first slowly increases and then rapidly increases,the stress of the anchor cable increases first and then becomes stable and then decreases and then becomes stable,and the settlement of the pipe-line keeps increasing.The maximum road settlement at each monitoring point is 260,220,180 mm,and the maximum cumulative settlement of pipelines at each monitoring point is 580,350,120 mm,far exceeding the warning value.The soil near the surrounding roads and pipelines should be strengthened by installing lapping,strengthening drainage and grouting to reduce settlement.
High-rise buildingDeep foundation pit engineeringSupporting structureDeformation monitoringSettling capacity
国家科技期刊平台
NSTL
万方数据
