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Stability analysis method of bedding slope under rainfall condition based on shoulder displacement

An analysis method and a stable technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems that it is difficult to reflect the mechanical state of rock mass and determine the stress and strain state of slope rock mass, and achieve The effect of avoiding landslide disaster

Active Publication Date: 2018-12-21
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

Therefore, when the external environment or internal properties change, the rock mass slope will show an extremely complicated deformation and failure process, so that it is difficult to determine the real stress-strain state in the slope rock mass, and the failure theory expressed by stress or strain It is difficult to reflect the real mechanical state of the rock mass

Method used

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  • Stability analysis method of bedding slope under rainfall condition based on shoulder displacement
  • Stability analysis method of bedding slope under rainfall condition based on shoulder displacement
  • Stability analysis method of bedding slope under rainfall condition based on shoulder displacement

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Embodiment 1

[0029] In this embodiment, the rainfall stability coefficient K of the slope is calculated by using the tangential force of the rock layer caused by rainfall as the starting force of slope deformation.

[0030] see figure 1 , under rainfall conditions, the hydraulic action of rainwater in the infiltrated slope body on the dominant structural surface includes the hydrostatic pressure of the trailing edge cracks and the uplift pressure and drag force on the weak structural surface. see figure 2 , due to the infiltration of rainfall, the strength of the muddy cement and soluble salt cement in the structural surface decreased rapidly, and the strength softened significantly, resulting in a rapid decline in the shear capacity of the layer, and the shear modulus of the material decreased from G to G 1 .

[0031] When the groundwater outflow joints of the slope are not blocked, the stress of the slope is simplified into a two-dimensional form. Assume that there is a crack at the ...

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Abstract

A method for analyze stability of bedding slope under rainfall condition based on displacement of slope shoulder includes such step as reconnaissance and mapping of slope to be analyzed, calculation of displacement u of point A of slope shoulder under rainfall condition and calculation of rainfall stability coefficient K. This method can provide pertinent basis for the prevention and control of landslide. It can realize the real-time grasp of slope stability.

Description

technical field [0001] The invention relates to the technical field of rock slope stability, in particular to an analysis method for the dynamic stability of rock slopes. Background technique [0002] In engineering practice, because slope rock mass often has complex structural planes and structures, and is in a complex in-situ stress field, there are many unknown and uncertain influencing factors. Therefore, when the external environment or internal properties change, the rock mass slope will show an extremely complex deformation and failure process, so that it is difficult to determine the real stress-strain state in the slope rock mass, and the failure theory expressed by stress or strain It is difficult to reflect the real mechanical state of the rock mass. [0003] Because the displacement itself is easy to monitor, the stability of the rock mass structure can often be judged according to the displacement of some special positions on the structure. Therefore, the engi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20Y02A10/23
Inventor 王俊杰陈爽爽杨洋邱珍锋
Owner CHONGQING JIAOTONG UNIVERSITY
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