Study On Foundation Treatment Technique For Soft Soil Of Littoral In Tangshan

Coastal soft ground is existed in the coast land of our country popularly. With therapid development of coastal economy， Coastal soft soil foundation has brought ahuge challenge to highway engineering and the construction of coastal areas. Coastalsoft ground， with the poor engineering properties， keeps a stable state in naturalcondition. Low-intensity， ground subsidence and unexpected shaped such as unevensettlement， thixotropic and rheology is easily caused by load or shock. which have agreat effect on the highway’s long-term stability and safety usage. As a result， thereis important theoretic and practical significance to choose a rational soft soilimprovement technology. The thesis has a systemic study on soft soil groundprocessing of TangCao road in TangShan by theoretical analysis and practicalobservation. The main contents are included as follows:Firstly， this paper has systematically summarized and introduced the presentsoft soil improvement technologies. And get a brief summary of the advantages anddisadvantages and the applicable conditions of those technology by comparing theirmechanism of reinforcement and main construction methods.Secondly， based on the Tangshan coastal Soft Ground，The thesis has asystemic study on soft soil ground improvement technology of TangCao road inTangShan. This thesis highlights the mechanism of reinforcement， main constructionmethods and quality detection of cement mixing pile， High Pressure Jet GroutingPile (HPJGP) and vibrational detritus stake.Finally， On-the-site settlement of cement mixing pile and High Pressure JetGrouting Pile (HPJGP) is monitored. And gain the final settlement by using hyperbolato predict settlement. This paper on highway engineer construction has an importantmeaning.