›› 2006, Vol. 27 ›› Issue (S1): 961-964.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on groundwater table and water flux of soft soil with confined water by vacuum-surcharge preloading

JIN Xiao-rong1, YU Jian-lin1, GONG Xiao-nan1, MAO Zhi-xing2   

  1. 1.Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China; 2.Zhejiang Provincial Electric Power Company, Hangzhou 310007, China
  • Received:2006-07-10 Published:2006-12-15

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Abstract: The variations of groundwater table and water flux are analyzed and studied in soft soil with confined water stratum by vacuum-surcharge preloading. The field test results indicate: (1) technology of ‘tearing membrane’ and ‘non-tearing membrane’ could effectively prevent the connectivity of confined water; (2) groundwater table at later stage is quite stable and the maximum dropping is 1.8 meter, SW2 arises about 1.0m, which indicates this area is partially penetrated by confined water; (3) confined water table at inward and outward is quite similar, they are separately influenced by degree of vacuum and rainfall; (4) water flux is very large at early stage, which diminishes sharply with time, and water flux of single vacuum pump is less than the one at the same zone by the same method, which indicates soft soil never completely connect the confined water stratum by vacuum-surcharge preloading.

Key words: confined water, vacuum-surcharge preloading, groundwater table, water flux

CLC Number: 

  • TU 447
  • 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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