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《Urban Geotechnical Investigation & Surveying》 2012-03
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Characteristics and Application of Vacuum Combined Surcharging Preloading Method in Soft Foundation Treatment

Yuan Wei,Liu Guoxiang(Olean University of China College of Environmental Science and Engineering,Qingdao 266100,China)  
The development and characteristics of vacuum combined surcharging preloading method was introduced.Based on the field monitoring data,the change law of surface settlement,layered deposition and pore water pressure in reinforced area by vacuum combined surcharging preloading method with time were analyzed.The results show that vacuum preloading pressure method can speed up the rate of foundation settlement,eliminate the surface settlement greatly after the construction,and it was an effective method of the treatment of soft soil.The phase of the joint preloading,the excess hydrostatic pressure induced by the vacuum preloading and the positive pore water pressure caused by preloading were not offset,nor were a simple superposition of them.
【CateGory Index】: TU472.33
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