The Experimental Study And Numerical Simulation Of The Collapse Loss Ground Improved With Dynamic Consolidation Method

Due to the complex of dynamic consolidation and many uncertain factors existed in ground, the study and design of dynamic consolidation method mainly depended on analogy and experience in past. Consequently, it is important to find a rational way to study dynamic consolidation method. Based on the condition of the ground improving in freeway Hanchang, the thesis analyzes the mechanism and factors of dynamic consolidation, and conducts the systematic study of collapse loss ground improved with dynamic consolidation method by experimental study and numerical simulation.This thesis includes the theoretical study, experimental study and numerical simulation of the ground improved with dynamic consolidation method. Theoretical study is the premise in study of dynamic consolidation method, and the study is to analyzes the mechanism and factors of dynamic consolidation, thus rationally assess the depth of improvement in freeway Hanchang; Experimental study defines the indexes of physics mechanics and the properties of collapse loss ground, and the effect of improvement in freeway Hanchang, by the same time, experimental study offers rationally mechanistic parameters for numerical simulation. Numerical simulation obtains the condition of displacement stress and strain in the course of dynamic consolidation by the ANSYS, which is a software of finite element cell. The result of numerical simulation is a good test to the results of theoretical study and experimental study, and makes the perfect study.The way of experimental study and numerical simulation in this thesis is a new way to study dynamic consolidation method. The result of study has important value to the engineers in collapse loss ground.