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Volume 34 Issue 7
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ZHANG Zhen-hua, WANG Xin-lin, TANG Kai, LUO Xian-qi. Feasibility of application of technology of geomechanical magnetic model tests to physical model tests on landslides[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(7): 1291-1298.
Citation: ZHANG Zhen-hua, WANG Xin-lin, TANG Kai, LUO Xian-qi. Feasibility of application of technology of geomechanical magnetic model tests to physical model tests on landslides[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(7): 1291-1298.
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Feasibility of application of technology of geomechanical magnetic model tests to physical model tests on landslides

  • (1. Hubei Provincial Key Laboratory of Hazards Prevention and Alleviation, China Three Gorges University, Yichang 443002, China; 2. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030, China)

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  • Received Date: June 29, 2011
  • Published Date: July 24, 2012
    Graphical Abstract
    • Abstract
  • The technology of geomechanicalmagnetic force model tests is put forward for overcoming the shortcomings of technology of geotechnical centrifuge model tests to obtain the force field whose stress gradient is the same as that of n times the gravity acceleration (called ng gravity). It is a model test technology to use the similarity of magnetic field and gravitational field to improve stress level of geomechanical model materials by adding powder magnetic materials to the rock and soil, and then to obtain the ng gravity. In order to prove the feasibility of applying the technology of geomechanicalmagnetic force model tests to physical model tests on landslides, model tests on landslide are designed by adding magnetic powder to soil as the model materials, and the photogrammetric method is employed to obtain critical slide angles with which the two landslide models whose materials contain magnetic powder or no magnetic power are in the state of limit equilibrium. The test results show that the critical slide angle of the model containing magnetic power is less than that of the model without containing magnetic powder, and the stress level of the model containing magnetic powder is larger than that of the model without containing magnetic powder, indicating that the application of the technology of geomechanical magnetic model tests to physical model tests on landslides is feasible.
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    • References (15)
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