The Supporting Design Of A Deep Foundation Pit Engineering In Taizhou

The rapid development of urban construction and underground traffic network, make foundation pit engineering develop rapidly, at the same time face greater challenges. The foundation pit supporting is an important part of the foundation pit engineering, the stand or fall of supporting schemes is directly related to the success or failure of the whole project.So take reasonable supporting scheme, the foundation pit engineering safety is guaranteed.This paper introduces the characteristics and developing trend of foundation pit engineering, and the common foundation pit engineering accident.Then,it expounds the design of foundation pit supporting procedures, principles and the basis of supporting scheme selection.And the current commonly used supporting types are classified,characteristics and applicable conditions of different supporting structures are summarized.What’s more,this paper illustrates the foundation pit supporting calculation method.On the basis of the above content, in the current specification for basis, carries on the deep foundation pit supporting structure design.In combination with the specific conditions of the proposed design engineering, puts forward two kinds of feasible supporting schemes, namely the underground continuous wall and the pile and inner support.And then compare their cost, determines the foundation pit supporting scheme is the bored piles and the concrete inner support, combining with the cement mixing pile cutoff curtain. Through the design and calculation, determine the reasonable support parameters, make it meet the specification requirements; Finally it is concluded the design scheme.