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Applied Mathematics and Mechanics (English Edition) ›› 2010, Vol. 31 ›› Issue (09): 1113-1124.doi: https://doi.org/10.1007/s10483-010-1347-9

• Articles • 上一篇    下一篇

Lamb’s integral formulas of two-phase saturated medium for soil dynamic with drainage

丁伯阳1 党改红2 袁金华1   

  1. 1. College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, P. R. China;
    2. Department of Civil Engineering, Zhejiang Agriculture and Forest University, Hangzhou 313100, P. R. China
  • 收稿日期:2009-12-24 修回日期:2010-06-23 出版日期:2010-09-01 发布日期:2010-09-01

Lamb’s integral formulas of two-phase saturated medium for soil dynamic with drainage

DING Bo-Yang1, DANG Gai-Hong2, YUAN Jin-Hua1   

  1. 1. College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, P. R. China;
    2. Department of Civil Engineering, Zhejiang Agriculture and Forest University, Hangzhou 313100, P. R. China
  • Received:2009-12-24 Revised:2010-06-23 Online:2010-09-01 Published:2010-09-01

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摘要： When dynamic force is applied to a saturated porous soil, drainage is common. In this paper, the saturated porous soil with a two-phase saturated medium is simulated, and Lamb’s integral formulas with drainage and stress formulas for a two-phase saturated medium are given based on Biot’s equation and Betti’s theorem (the reciprocal theorem). According to the basic solution to Biot’s equation, Green’s function Gij and three terms of Green’s function G4i, Gi4, and G44 of a two-phase saturated medium subject to a concentrated force on a spherical coordinate are presented. The displacement field with drainage, the magnitude of drainage, and the pore pressure of the center explosion source are obtained in computation. The results of the classical Sharpe’s solutions and the solutions of the two-phase saturated medium that decays to a single-phase medium are compared. Good agreement is observed.

Abstract: When dynamic force is applied to a saturated porous soil, drainage is common. In this paper, the saturated porous soil with a two-phase saturated medium is simulated, and Lamb’s integral formulas with drainage and stress formulas for a two-phase saturated medium are given based on Biot’s equation and Betti’s theorem (the reciprocal theorem). According to the basic solution to Biot’s equation, Green’s function Gij and three terms of Green’s function G4i, Gi4, and G44 of a two-phase saturated medium subject to a concentrated force on a spherical coordinate are presented. The displacement field with drainage, the magnitude of drainage, and the pore pressure of the center explosion source are obtained in computation. The results of the classical Sharpe’s solutions and the solutions of the two-phase saturated medium that decays to a single-phase medium are compared. Good agreement is observed.

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