›› 2003, Vol. 24 ›› Issue (1): 17-20.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental researches on unloading deformation of clay in excavation of foundation pit

HE Shi-xiu1, HAN Gao-sheng1, ZHUANG Xin-shan1, WU Xiang-guo2   

  1. （1. Department of Civil Engineering, Hubei Polytechnic University, Wuhan 430068, China; 2.Institute of Civil Engineering, Harbin Engineering University, Harbin 150001, China
  • Received:2001-12-28 Online:2003-02-10 Published:2014-08-27

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Abstract: A series of experimental researches on the deformation character were made of twenty undisturbed saturated samples of silty clay from a deep foundation pit in Wuhan at K0 consolidation and no drained shear test. The aim of the tests is to find the test curve of stress-strain and equation of elastic modulus in unloading of silty clay. The research results have shown that the curve of stress-strain in unloading is a hyperbola and is similar to the curve of triaxial compression test, but there is difference of a constant between them, and the equation of elastic modulus is different each other.

Key words: excavation, unloading, stress-strain, experimental research

CLC Number: 

  • TU 411.59
  • 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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