Deformation and matched working condition analysis of sensitive environment around pass-through connection section
The study focuses on the adjacent excavations which are the pass-through connection section and the asyn-chronous construction sequence of shallow excavation followed by deep excavation.Based on the monitoring parameter of displacement,monitoring data of sensitive environment displacement around pass-through connection section have been matched and analyzed with excavation conditions.Results show that the environmental impact caused by excavation of the foundation pit around the connecting section is within twice the larger excavation depth.Deformations of building,road,soil and capping beam are obvious and synchronous and displacement values are maximal,removing the strut on the top of embedded support piles.It is necessary to increase the axial stiffness of the strut on the top of embedded support piles.When the strut is dismantled,it is necessary to strengthen monitoring in order to take emergency measures timely.
construction sequenceadjacent excavationsconnection sectionexcavation monitoring
万方数据
维普
