Sensitivity Analysis on Influencing Factors of Shallow Landslide of Coal Measure Strata

ZHU Lei , HONG Bao-ning

Journal of Changjiang River Scientific Research Institute ›› 2011, Vol. 28 ›› Issue (7) : 67-71.

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PDF(1052 KB)
Journal of Changjiang River Scientific Research Institute ›› 2011, Vol. 28 ›› Issue (7) : 67-71.
HEALTHY CHANGJIANG RIVER

Sensitivity Analysis on Influencing Factors of Shallow Landslide of Coal Measure Strata

  • ZHU Lei 1,2, HONG Bao-ning 3
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Abstract

 Elasto-plastic contact FEM with strength reduction method is employed to study the sensitivity of main influencing factors of coal measure strata shallow landslides. The calculation indicates that the sensitivity of shallow landslide stability of coal measure strata ranges from maximum to minimum as follows: the slope degree, the cohesion of slip surface soil, the internal friction angle of slip surface soil, the weathering depth, and the slope height. Elastic modulus and Poisson ' s ratio of rock-soil mass have less impact on the stability of shallow landslide of coal measure strata. The research results provide theoretical reference for the design, construction and treatment of coal measure strata slopes.

Key words

coal measure strata  /    shallow landslides  /    elastoplastic FEM  /    contact algorithm   /   sensitivity

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ZHU Lei , HONG Bao-ning. Sensitivity Analysis on Influencing Factors of Shallow Landslide of Coal Measure Strata [J]. Journal of Changjiang River Scientific Research Institute. 2011, 28(7): 67-71
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