›› 2007, Vol. 28 ›› Issue (4): 738-742.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Assessment of effect of ground improvement for hydraulic structure using combined vacuum and surcharge preloading

WU Yue-dong1，YIN Zong-ze1，GUO Ji-zhong 2   

  1. 1.Institute of Geotechnical Engineering, Hohai University，Nanjing 210098，China；2.Jiangsu Electric Power Design Institute,Nanjing 210024, China
  • Received:2005-01-02 Online:2007-04-10 Published:2013-09-05

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Abstract: The special feature including the mechanism of combined vacuum and surcharge preloading method for soft ground improvement is described. The soft ground improvement work in Huaihe River Zhangma Watergate project is investigated. Based on the field monitoring data (including surface settlement, settlement at different strata, horizontal displacement, pore-water pressure and degree of vacuum), in-situ tests(including CPT, STP,vane shear tests and static load tests) and laboratory tests, the effect of ground improvement is analyzed and assessed. The results satisfy the design requirements. The study provides a reference for similar ground improvement projects using the proposed method.

Key words: combined vacuum and surcharge preloading, hydraulic structure, field monitoring, in-situ test, ground improvement effect

CLC Number: 

  • TU 472.3+3
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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