Dynamic Stability Analysis Of The Soil Nail Wall Under Seismic Action

Aiming at slope supported with soil nailing is likely to destroy in the earthquake when the stability of it not considered reasonally,the design and stability of soil nailing supporting structure have been studied in the thesis,with analysis and calculation theories of supporting structure. Main research contents include design of structure supported with soil nailing wall, stability analysis of soil nailing wall and finite element analysis of it.The results show: soil nailing supporting structure should be reasonally designed, complied with the items of technical specifications for it.Not only static stability analysis, but also dynamic stability analysis should be done for soil nailing wall supporting structure located in the area where earthquake is likely to happen.The programme is written by Fortran.In the thesis,the most dangerous center of circular slip surface is searched with the method of lattice, the static stability analysis model is founded and the static stability analysis is done; the seismic effect is taken into account with the quasi-static method, the most dangerous center of circular slip surface of slope supported with soil nailing wall is searched with the method of lattice, the dynamic stability analysis model is founded and the dynamic stability analysis is done.The relationship between the most dangerous center of circular slip surface and the diameter and length of soil nailing is interactional.The stability of soil nailing supporting structure is analysis with the help of the programme which is facility and efficient.Not only the simulation of the actual construction process,but also the theoretical analysis of soil nailing supporting structure can be well done by the help of ADINA.