›› 2012, Vol. 33 ›› Issue (7): 1965-1971.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study of shear strength for intact soil

CAI Jian1, 2   

  1. 1. Shanghai Waterway Engineering Design and Consulting Co., Ltd., CCCC, Shanghai 200120, China; 2. Shanghai Hangyuan Harbor Engineering Quality Testing Co., Ltd., Shanghai 200120, China
  • Received:2011-07-01 Online:2012-07-11 Published:2012-07-13

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Abstract: The relationship between in-situ values of soil shear strength and laboratory experimental values is discussed. Based on consolidation theory of saturated soil, the consolidation of soil is the process effective stress increasing and pore water pressure dissipating under a certain pressure action. With the effective stress increasing, void ratio of soil decreases and shear strength increases. Compression curve and shear strength line have one-to-one correspondence relationship. Based on in-situ compression curves and indoor experimental curves, variation regularity of soil shear strength during loading and unloading processes is studied. Then, the relationship between cohesion and internal friction angle is derived based on the calculation method of soil unloading shear strength. Finally, the calculation method of shear strength for intact soil is obtained.

Key words: in-situ, shear strength parameters, cohesion of soil, internal friction angle of soil

CLC Number: 

  • TU 411
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