Research on the Design and Deformation Control Effect of Foundation Pit Support under Complex Geological Conditions
To ensure the safe construction of foundation pits under complex geological conditions,the design of support measures is carried out based on the results of foundation pit survey,and the deformation control effect of support measures is evaluated through deformation prediction and other means.Take a project with complex geological conditions as an example to analyze.The results show that the partition design of foundation pit support should be carried out,that is,the support measures in section I are designed as"anchor cables+double row support piles",the support measures in section II are designed as"soil nail walls+sloping",and the support measures in section III are designed as"anchor cables+single row support piles".After reinforcement calculation and stability calculation,the support measures all meet the requirements;In the evaluation results of the deformation control effect of the foundation pit,the current deformation value ranges from 12.93 to 28.41mm,and the subsequent predicted deformation value is 24.94 to 28.52mm,all within the deformation control range,indicating that the foundation pit support measures are reasonable and effective.
foundation pitsupport designgeological conditionsdeformation prediction
NETL
NSTL
万方数据
维普
