Research On The Program Of Shidai-Dijin Pit Waterproof Curtain Supporting Structure

In terms of engineering practice and theoretical research, As with the upper structure, deep foundation pit support technology in the municipal underground engineering and industrial and civil buildings has made great progress in recent years. Deep foundation pit supporting structure depends on the choice of these two factors of security and economic. Due to the soil displacements generated in the deep foundation pit supporting the process and the affect of the soil settlement and around existing structures and underground pipelines, furthermore, with the increasingly high degree of modernization and dwindling of people’s living space, increasingly complex geological conditions, especially the high water table soil and soft ground, engineers faced with the choice of the form of the supporting structure is more complex, the emergence and development of waterproof curtain technology to solve this problem. It can be said that Deep foundation pit support form and design, the construction of new technologies is an important sign of the construction industry standard measure of a country. This article relies on the New Empire 25 meters deep underground excavation project, due to the difficulties of selecting the supporting structure caused by its complex geological conditions and hydrological conditions, the theory of fuzzy comprehensive evaluation in this paper,creats fuzzy-level evaluation system to deep foundation pit support structure selection, obtains result of Shidai-Dijing depth of field excavation engineering support program "Supporting piles+anchor+waterproof curtain", at the same time, makes use of Finite Element Analysis Theory,apply software of MIDAS/GTS, in connection with Shidai-Dijing depth of field excavation projects, focus on the analysis of the impact of change of the soil parameters, the pile geometry Characters and anchor parameters on the supporting structure, reach conclusion of impact of various factors associated with the supporting structure and the best design specifications.