The Study And Application Of The Monitoring Technique Of Foundation Pit

Foundation pit engineering is a rich and various field in underground engineering construction, which is also the most complicated technique filed in civil engineering. Foundation pit engineering is the systematic engineering with the geology engineering and structure engineering in it, whose characteristic includes the severe regionality, comprehensibility, practicality and risky character. It is a subject many people have studied that how to control the deformation of the foundation pit, to make the foundation safe with low cost.It is analyzed in the present paper that the effect of the factors of precipitation, retaining pile, soil excavation, and waterproof curtain to the surrounding environment and deformation of soil due to the foundation excavation. The analysis points out that there exist the time and space effect during the foundation excavation.The detail analysis are done to the monitoring schemes of the foundation pit, and the authors' perceptions are presented, pointing out that the appropriate monitoring schemes and monitoring warning value should be chosen according to the real situation of the foundation. Then the analysis and estimation for the monitoring data of the foundation pit can be done by some mathematical method, which will give some guidance for the construction of engineering.In final stage, the monitoring scheme for the foundation pit project in Guangzhou Zhujiang new city is presented according to the above study results, the analysis and estimation are done to the monitoring data, which can give the guarantee for the safety construction of the foundation pit.