Study on the mechanism and influencing factors of sliding and bending destruction mode of concealed gentle inclined bedding slope
Aiming at the tendency of sliding and bending failure under rainfall conditions of the concealed gentle inclined bedding slop,a calculation formula for the bending failure section length and critical slope length of the rock layer sliding and bending failure was established using static analysis and energy analysis methods on the basis of the geological generalization model.The Zhuque Cave landslide was taken as an example,the rationality of the bending failure section length equation was verified,and the factors that cause sliding and bending failure of such concealed gentle inclined bedding slop were analyzed.The results show that the inter-layer friction angle and rock layer inclination angle have the greatest influence on the bending section length,while the influences of groundwater rising length,rock layer thickness,slope length,interlayer cohesion,and comprehensive elastic modulus of the rock mass are relatively smaller.For a given concealed gentle inclined bedding slop,the spatial relationship of groundwater in the slope body is an important external factor for the sliding and bending failure of the concealed gentle inclined bedding slop.Additionally,the value of the bending stiffness of the rock mass of the hidden slow-dipping soft rock slope was discussed,and the elastic modulus adjustment coefficient of the rock mass was introduced,and the corresponding calculation formula was given.
rainfall conditionsconcealed gentle inclined bedding slopsliding and bendinginfluencing factorsflexural rigidity
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