深基坑工程中双排桩桩间土加固效果的应用研究

Study on Application of Soil Reinforcement Effect Between Double-row Piles in Deep Foundation Pit Engineering

本文以8米左右的深基坑工程为研究对象,分析了双排桩在支护工程中的优势,比单排桩+内支撑支护体系更好的解决施工开挖出土和空间受到限制的问题,比桩+锚支护体系更好的解决了城市限制出红线的矛盾。详细的对比了本基坑工程两支护段,分析了双排桩支护的变形特征、桩间土加固对桩土相互作用的影响和前后排桩变形量及桩身弯矩的影响。

In this paper,the deep foundation pit engineering of about 8 meters is taken as the research object,The advantages of double-row piles in foundation pit engineering are analyzed:Better solution to the problem of excavation and limited space than single row pile+internal support system;Better solution to the problem of the city restricts the red line. The two supporting sections of the foundation pit project are compared in detail,the deformation characteristics of double-row pile support,the influence of soil reinforcement between piles on pile-soil interaction,the deformation of front and rear row piles and the bending moment of pile body are analyzed.