The Exploration Of The Form Of Foundation Pit Engineering Application Exzample

With the rapid economic development of our country, the size of city and the urban population is more and more big. In order to solve the problem of heavy city, the development of high-rise buildings and the utilization of underground space becomes more and more fast. These engineering are inseparable from the foundation pit, so the construction of foundation pit supporting is an important part of project.Because our country in many places distribution has soft soil, and of the soft soil foundation pit support scheme has become the norm of project construction. Soft soil area of common foundation pit supporting ways mainly have the retaining type structure, including the cast-in-place pile reinforcement, driven cast-in-place piles, dig holes filling pile, steel sheet pile; Reinforcement type support, including the cement mixing pile supporting, spray the anchor net supporting; Support in support. Because some pit excavation engineering with large area, environmental protection requirement is high, and time limit tight features, and soft soil quality condition is complex, the conventional single foundation pit supporting way already cannot satisfy the requirement of the project.Selection of security, the economy, the reasonable and feasible way of foundation pit supporting consideration, this article on lots of literature material, on the basis of common soil nailing and pile anchor bracing action principle and construction scheme in the probe. From the engineering geological conditions of the influence factors of foundation pit safety rationality analysis, in the area of software foundation pit engineering puts forward take soil nailing support and anchor pile support within the combination of foundation pit supporting method, combining with practical examples, to this kind of the supporting method is verified.In this paper, three typical profile optimal design analysis, the theoretical calculation, draw three profile of the supporting design scheme is feasible, and stability coefficient is greater than1, satisfy the standard requirement. At the same time for3-3profile of the supporting method is optimized to satisfy the design requirements specification better.