NUMERICAL SIMULATION OF ANTI2LIQUEFACTION CHARACTERISTIC OF STONE COLUMNS COMPOSITE FOUNDATION

Zhang Yanmei; Zhang Xudong; Zhang Hongru

doi:10.13204/j.gyjz200802017

Volume 38 Issue 2

Dec. 2014

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Zhang Yanmei, Zhang Xudong, Zhang Hongru. NUMERICAL SIMULATION OF ANTI2LIQUEFACTION CHARACTERISTIC OF STONE COLUMNS COMPOSITE FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(2): 59-63. doi: 10.13204/j.gyjz200802017

Citation:

Zhang Yanmei, Zhang Xudong, Zhang Hongru. NUMERICAL SIMULATION OF ANTI2LIQUEFACTION CHARACTERISTIC OF STONE COLUMNS COMPOSITE FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(2): 59-63. doi: 10.13204/j.gyjz200802017

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NUMERICAL SIMULATION OF ANTI2LIQUEFACTION CHARACTERISTIC OF STONE COLUMNS COMPOSITE FOUNDATION

doi: 10.13204/j.gyjz200802017

1.
1. College of Architecture &Storage Engineering,China University of Petroleum(Huadong),Qingdao 266555;
2.
2. Beijing Jiaotong University,Beijing 100044

Received Date: 2007-05-21
Publish Date: 2008-02-20

Abstract

Abstract

Saturated sand is looked as soil2water two2medium, the fully coupled three2dimension effective2stress dynamic analysis procedure is developed on the base of Biot dynamic theory and the right of procedure was proved. Stone columns composite foundation is analyzed by the developed procedure, the influence of different soil layer and different additive pressure on anti2liquefaction characteristic of composite foundation is discussed. The research shows that the excess pore water press ratio in the soil around column is smaller than that of reinforcement before. With decreasing of input earthquake acceleration, the dissipation of excess pore water press is remarkable, the distance from stone columns is smaller, and the dissipation is more remarkable. Additive pressure can restrain the incensement of excess pore water pressure, this favourable factor should be considered in engineering design and the space of stone columns may be increscent.
- stone columns,
- composite foundation,
- liquefaction,
- excess pore water press

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References(19)

References

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