The Complex Environment Of The Deep Foundation Pit Engineering Optimal Design

With the rapid development of urban and rural integration process, high-rise buildings increased rapidly in the big, in, small city and town, with deep foundation pit engineering quantity also increases quickly, so the study of deep foundation pit engineering universal. Rational use of underground space is an effective way to save the land, but because the infrastructure, supporting facilities to further improve, underground pipe network, the road more and more intensive, distance from the building line closer, faced with this situation, deep foundation pit engineering to the design and construction are put forward higher requirements.In this paper, taking Wuhu foreign economy of deep foundation pit engineering Plaza Underground Garage Based on geographical characteristics, analysis of engineering and environmental characteristics, and make a preliminary design, In Lizheng deep foundation pit software and ANSYS finite element simulation software as a platform, checking and simulation, for the preliminary design of the comparison results, analyze deficiencies of preliminary design, and improvement. Proposed the software analysis into deep foundation pit optimization design process view.This paper has done the following work:the first chapter introduces the development of deep foundation pit engineering, the background and research significance; the second chapter introduces the engineering example, introduces the deep foundation pit supporting basic theory knowledge, analyses the engineering characteristics of the project, puts forward the preliminary design; the third chapter introduces the application method of Lizheng deep foundation software, using Lizheng software checks to the preliminary design, found the checking results don’t meet the requirements of the design; the fourth chapter introduces the finite element simulation software ANSYS, the project was simulated with ANSYS software, predict the deformation trend and influence of the project; the fifth chapter will be the results of the first two chapters of the operation contrast, corrected the errors in the design, and the design is optimized. Finally, the monitoring results and theoretical results contrast, verify the optimization design of success.