Foundation Pit Deformation Monitoringand Numerical Simulation Analysis Of The Gp Clinical Training Base In Fuxin

Since China's reform and opening up, the construction of urbanization in our country has developed rapidly, rapid population growth, make people increase the demand for living space, from the past bungalow to high-level, high-rise buildings, now not only building height is increasing and construction scale is becoming more and more big. In order not to affect the city planning, people began to development and utilization of underground space development, so the deep foundation pit engineering is quickly developing.Foundation pit engineering construction involves many aspects, like the engineering geological conditions, foundation pit supporting form and mechanics of soil in the area of status are all factors affecting the safe construction of the foundation pit engineering, so the deep foundation pit engineering is complex, regional and risky, if a foundation pit engineering accidents happened will have an estimate of the consequences. A foundation pit engineering to select a right supporting form and the supporting design scheme is the key to ensure the safety of foundation pit engineering construction. Because of the high unpredictability in the foundation pit in construction process, so in order to control the deformation of foundation pit excavation process at any time, for monitoring is an essential part of construction site. Now is the era of the rapid development of the computer, the finite element simulation software in the foundation pit engineering application is very wide also, in foundation pit design and construction has played an important role.Taking Fuxin clinical training base of the foundation pit engineering as the research background, through the foundation pit, construction site monitoring and numerical simulation of deformation mechanism, the pile anchor supporting characteristics were analyzed, and mainly include the following contents:(1) Lists the current type of foundation pit supporting mechanism of deformation are summarized, including the uplifts of the surface settlement and deformation, the pit retaining structure deformation and so on three parts, and analyzed the factors affecting the deformation of foundation pit and preventive measures. This paper expounds the foundation pit soil pressure of retaining structure theory and the static calculation.(2) Combined with engineering of geotechnical engineering investigation data and actual engineering site condition, the use of reason is calculation software for foundation pit supporting design of section 2, the internal force and displacement of retaining structure, the settlement of soil displacement of retaining structure, reinforced and overall stability analysis of foundation pit, etc. Determine the supporting structure, in accordance with the engineering site features and specification requirements for pit monitoring work arrangement, main monitoring of horizontal displacement of soil excavation, the ground settlement around and anchor axial force, etc., for monitoring results, foundation pit monitoring system.(3) This paper uses the finite element software scaled to foundation pit excavation ADINA.the a two-dimensional simulation, in the process of excavation of foundation pit surrounding the surface subsidence, horizontal displacement of foundation pit soil and anchor axial force are numerically simulated, and the simulation results and analysis.(4) Finally, the reason is design calculation value, field monitoring and scaled numerical simulation ADINA.the values were analyzed, the results obtained with the three basic consistent, suggesting that the foundation pit supporting design is reasonable, the numerical simulation modeling and parameter selection is correct. Provide a reference for the study of the foundation pit engineering, to ensure the security of the actual construction, optimizing the design of foundation pit.