Design And PFC Simulation Of Two Way Reinforced Composite Foundation

Along with the development of engineering construction,The demand of the foundation is higher and higher,The upper structure has developed very perfect,so the civil engineering research focus gradually from the floor to the ground,How tall the upper structure can build depends on the bearing capacity of foundation,soft soil foundation is one of the problems often encountered in the construction of civil engineering.CFG-pile plus geogrid composite foundation as a kind of rigid pile composite foundation is now the most widely used in engineering composite foundation.In this thesis,the CFG-pile plus geogrid composite foundation in engineering applications have important practical significance.This thesis starting with the concept of foundation treatment,Two-way reinforced composite foundation as the main line,through summarizing a large number of relevant literature,system elaborated the main methods of ground treatment,the concept and character of CFG-pile plus geogrid composite foundation and briefly introduces the mattress layer technology of CFG pile and geogrid composite foundation.Design the CFG-pile plus geogrid composite foundation of the highway of Hongkou of WuHan to XiaoGan AK0+006~AK0+040.Calculated the CFG-pile plus geogrid composite foundation bearing capacity and settlement through the existing theory.At last,establish the analysis model of CFG-pile plus geogrid composite foundation through the PFC software.Analysis the deformation characteristics of CFG-pile plus geogrid composite foundation by applying different loads.In this thesis,through theoretical calculation and numerical simulation calculation,getting that the paper design of CFG-pile plus geogrid composite foundation bearing capacity,settlement and the stability of the foundation meets the engineering requirements well.