›› 2018, Vol. 39 ›› Issue (5): 1753-1760.doi: 10.16285/j.rsm.2017.0267

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Dynamic behavior of soil with fiber and cement under cyclic loading

WANG Min-min1, LU Qun1, 2, 3, GUO Shao-long1, GAO Meng1, SHEN Zhong-tao4   

  1. 1. School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China; 2. Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin Chengjian University, Tianjin 300384, China; 3. Power Construction Corporation of China, Huadong Engineering Corporation Limited, Hangzhou, Zhejiang 310014, China; 4. Sinohydro Bureau 12 Co., Ltd., Hangzhou, Zhejiang 310014, China
  • Received:2017-02-20 Online:2018-05-11 Published:2018-06-12
  • Supported by:

    This work was supported by the Science and Technology Program of Power Construction Corporation of China (SD2013-10) and the General Program of Foundation and Frontier Technology in Tianjin (15JCYBJC48900).

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Abstract: The dynamic stress-strain and dynamic elastic modulus-strain of cemented soil mixed with different amount of polypropylene fiber or the basalt fiber were studied by using the dynamic triaxial apparatus. The results show that the dynamic strength and dynamic elastic modulus of cement soil is in connection with confining pressure, fiber types and fiber contents. With the increase of fiber contents, the dynamic strength and dynamic modulus of cemented soil increase, and the dynamic deformation decreases. The hysteresis curve and the microstructure of cemented soil show that the cement soil containing basalt fiber presents the best dynamic performance . The maximum dynamic elastic modulus increases with the increase of confining pressure and fiber content. The normalized curves of cemented soil mixed with basalt fiber under different confining pressures gather with each other, so the dependency on the confining pressure is weakened.

Key words: cyclic loading, basalt fiber and polypropylene fiber, dynamic strength, dynamic elastic modulus, dynamic deformation

CLC Number: 

  • TU 411

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