The Research And Application Of Dynamic Consolidation For Soft Soil Foundation

Following the development of the national economy, the constriction scale isincreasing. However the constructions such as industry and civil buildings, railwayengineering, road and bridge projects and yard pier always encounter with soft ground orbad foundation. Meanwhile, the increasingly growing load of the structure results in ahigh demand for foundations. The unique engineering geological conditions in Binhaiareas cause that projects in this region require the large area soft ground treatment. Suchsoft soil characterizes high moisture content, large void radio, high compressibility, lowstrength and poor engineering properties, so how this type of condition can receiveeffective and economical processing is a crucial issue confronted with by currentgeotechnical profession.This article, based on comprehensive analysis and summarized research trends athome and abroad, will conduct the study in pore water pressure changes under the DynamicCompaction. Meanwhile, this article is going to take the test which reinforces thereclamation soft ground in Shandong Dongying Port oil depot area by using ImmersedTube Sand Pile and Pre-draining Dynamic Consolidation method as an example to explorecauses and effects of soft foundation reinforcement from several angles.Firstly, the developing history and soft soil characteristics will be summarized, andthen the mechanisms of Immersed Tube Sand Pile and Pre-draining Dynamic Consolidationmethod will be put forward based on the theory of dynamic consolidation and dynamicreplacement mechanism. Subsequently, combining field test, this article will focus onanalyzing the generation, growth dissipating speed, as well as sphere of influence of thesite excess pore water pressure. At the same time, the impacts of tamping energy and blowcount on foundation reinforcement effect will be explored from the perspective of studyingsurface subsidence, stratified sedimentation and deep horizontal displacement, etc.. lastly,through utilizing in-situ testing methods to evaluate the effect of foundation reinforcement,Draw some meaningful conclusions,For this type of foundation reinforcement of asuccessful case.