›› 2007, Vol. 28 ›› Issue (8): 1539-1543.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

On engineering characteristics of sallow biogenetic gassy sand by piezocone test

GUO Ai-guo, KONG Ling-wei, CHEN Jian-bin, ZHONG Fang-jie   

  1. Key Laboratory of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2006-08-30 Online:2007-08-10 Published:2013-10-15

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Abstract: Shallow biogenetic gassy sand is one of special unsaturated soil. Because of containing closed biogenetic gas, whose existence has great influence on the engineering property of sand, the sandy soil has special engineering characteristic from other common ones. In this paper, the initial judgment is drawn on whether sand contains biogenetic gas, and then the in-situ and laboratory tests are done to compare the bearing capacities of sand before and after gas release. It is found that with avoiding seepage failure happening, the slow release of biogenetic gas can increase the bearing capacity of sand, which will be good for the stability of upper buildings.

Key words: biogenetic gas, unsaturated soil, sandy soil, piezocone test(CPTU), in-situ test

CLC Number: 

  • TU 411
  • 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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