The Research And Safety Evaluation Of Under The Complicated Conditions Of Deep Foundation Pit Supporting Structure

Along with the reform and opening up, China’s construction industry is experiencing a hitherto unknown booming machine. After such a national development but also for our construction industry are put forward higher requirements, to achieve high quality, high standard, high level of industrialization in the construction industry. Faced with such a huge demand for social development, the government should strengthen the supervision of the construction industry, to. ensure that the national construction industry can actively and healthy development.The cause of the high accident rate of deep foundation pit engineering, most of it is due to the problem of supporting structure, leading to safety accident. In this paper, the selection and safety evaluation of deep foundation pit support project is studied from the following aspects:(1) Introduce the common foundation pit supporting schemeSeveral envelopes are commonly used pile, gravity retaining wall, underground continuous wall, soil nail wall and bolting, freezing method, and two support structure system.(2) For the case of the supporting structure scheme selection and safety assessmentIn a coastal city of East China’s deep foundation pit engineering examples, introduced in the project from the selection of supporting system to the process and steps of safety evaluation of late, for readers in dealing with the same engineering problems to provide some ideas.(3) The numerical analysis of the influence on the surrounding environment of foundation pit excavationWhich enclosure design Tongji Kai star foundation design calculation software FRWS7.0 checking and support system using BSC4.0 checking, dewatering of confined water impact on the surrounding environment by calculation software of Visual MODFLOW, foundation pit excavation numerical simulation using large geotechnical finite element software PLAXIS.