›› 2018, Vol. 39 ›› Issue (8): 3071-3076.doi: 10.16285/j.rsm.2016.2413

• Testing Technology • Previous Articles     Next Articles

Development and application of new apparatus for K0 test

ZHU Jun-gao1, 2, LU Yang-yang1, 2, JIANG Ming-jie1, 2, CHU Fu-yong3   

  1. 1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2. Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, Nanjing, Jiangsu 210098, China; 3. College of Engineering and Design, Lishui University, Lishui, Zhejiang 323000, China
  • Received:2016-10-13 Online:2018-08-11 Published:2018-09-02
  • Supported by:

    This work was supported by the National Key R&D Program of China(2017YFC0404804), the National Natural Science Foundation of China (51479052), the Program for Innovative Research Team in University (IRT_15R17) and the Open Subject Fund Projects of Engineering Research Center of Dyke Safety and Disease Control of Ministry of Water Resources.

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Abstract: In this paper, the large apparatus to measure static lateral pressure coefficient was introduced. The value of dry sand was tested by using the apparatus. The dry-sand test result was used to compare with the test of the water-bag type oedometer. The friction of the sidewall produced during the experiment was amended, and the deviation caused by lateral expansion were also analyzed. The accuracy and effectiveness of the apparatus was validated. Coarse granular soil was tested by this apparatus. And the change of under various stress conditions was tested, which verified the applicability of the apparatus to coarse granular soil. It is convenient in operation, stable in performance, and precise in accuracy. It can be used to test the static lateral pressure coefficient of large practical size coarse grained soil, which is hard to get with the traditional instrument.

Key words: coarse grained soil, at-rest lateral pressure coefficient, side wall friction, new-type apparatus for K0 test

CLC Number: 

  • TU 415

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