Infiltration Characteristics and Disaster-forming Mechanism of Loess in South Jinghe Tableland
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P642.22;X43

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    Abstract:

    [Objective] The characteristics of the permeability anisotropy of the South Jinghe tableland were analyzed, and the disaster-pregnant mechanism of landslides was discussed in order to provide guidance for disaster prevention and control of rainwater infiltration landslides in the loess distribution area.[Methods] Through field investigation and infiltration test, the infiltration characteristics of fractured soil and different soil layers in this area were analyzed.[Results] The permeability coefficient of fractured soil was much higher than that of homogeneous soil. Comparison of permeability coefficients of different soil layers showed that the permeability coefficient of Malan loess was the largest due to large and medium porosity and joint fracture development, while the permeability coefficient of the paleosol was the smallest.[Conclusion] The soil in South Jinghe tableland has significant permeability anisotropy. The mechanism of water-fissure disaster-forming has become a malignant disastrous chain model in this area.

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洪勃,杜少少,李喜安,王力,王少林,张航泊.泾河南塬黄土的渗透特征及孕灾机制[J].水土保持通报英文版,2019,39(3):75-79

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History
  • Received:September 07,2018
  • Revised:November 19,2018
  • Adopted:
  • Online: July 04,2019
  • Published: