Numerical Simulation Of The Effects Of Deep Excavationto Soil And Neighboring Buildings

In about20years, High-rise building has a good development in China, the fulluse of underground space has promoted the development of deep foundation pit. Butthe deep excavation is still one of the most attentional and the most difficultproblems of geotechnical engineering. Deep excavation works are still in explorationstage also in practice, It is lack of mature criterion, used semi-theoretical andsemi-empirical approach to the problem, so alao leading to accidents of deepexcavation, those accidents will get the land body tilting and deformation around theexcavation, more serious damage will lead to the collapse of the excavation, It is notonly delay the work-times and use some rescue money consuming, but also maymake the adjacent buildings or underground facilities crack、 tilt or collapse aroundthe excavation, and caused a death of works, thereby It is constraining thedevelopment of deep excavation."Deep excavation", The concept is appear in Europe and the United States inabout1940, the "deep excavation " means the underground space for the purpose ofbuilding (including structure) foundation and basement construction and excavationof underground. accustomedly we call the "Deep excavation" when the depthgenerally greater then or equal to7m.It is had been exploring how to effectively control the transmutation of theexcavation, and make the excavation engineering safe and economic. In deepexcavation，the transmutation of retaining strueture has an important factor affectingin the excavation’s transmutation. After reading a lot of relevant literature, concludedon the basis of previous research, this paper This subway excavation in Chongqing asthe background,we use the theoretical research, field monitoring and numericalsimulation method to the analys the excavation’s transmutation. This article readsas follows:(1) Analysis then characteristics of Building Construction Excavation(2) Using knowledge of soil mechanics and rock mechanics of transmutation ofrock and soil in excavation(3) Using FLAC3Dnumerical simulation software to simulate the excavation(4) Getting the Simulated results, Know the adjacent building security under certain conditions;...