JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2012, Vol. 42 ›› Issue (1): 93-98.

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The influence of capillary water action on the embankment stability of a silt embankment

ZHU Deng-yuan1, 2, GUAN Yan-hua1*   

  1. 1.  School of Civil Engineering, Shandong University, Jinan 250061, China;
    2. School of Engineering, Linyi University, Linyi 276000, China
  • Received:2011-08-08 Online:2012-02-20 Published:2011-08-08

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Abstract:

The influence of capillary water action on the embankment stability of a silt embankment was studied. Based on experiment, the relationships between the height of capillary action and water content, the water content and modular of silt, the water content and shear strength were obtained, and then the equation about the height of capillary action and the modular of silt was fitted. The test results indicated that capillary water had great influence on stiffness and strength of the silt embankment. The finite element method software, Abaqus, was applied to simulate the influence of capillary water action on the silt embankment stability. The strength reduction method was adopted to calculate the safety factors for the silt embankment with deferent water level under standard loads. The discipline about the height of capillary action and the silt embankment stability was obtained. The foundation could provide the basis for the design and construction of silt embankments.

Key words: silt embankment, capillary water, strength reduction method, stability, finite element method

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