Dynamic stability analysis method of slope based on displacement

An analysis method and stability technology, applied in the analysis field of dynamic stability of rock slope, can solve the problems of difficult to reflect the mechanical state of rock mass, difficult to determine the stress and strain state of slope rock mass, etc., so as to avoid landslide disasters. Effect

Active Publication Date: 2019-01-15
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 complex deformation and failure process, so that it is difficult to determine the real stress-strain state in the slope rock mass. It is difficult to reflect the real mechanical state of the rock mass

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  • Dynamic stability analysis method of slope based on displacement
  • Dynamic stability analysis method of slope based on displacement
  • Dynamic stability analysis method of slope based on displacement

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Embodiment 1

[0026] The bedding rock slope belongs to layered rock mass. The sequence numbers of rock formations from the top to the foot of the slope to be analyzed are 1, 2, ..., i, ..., n.

[0027] This embodiment discloses a displacement-based slope dynamic stability analysis method, using earthquake force as the starting force for slope deformation, and calculating the seismic stability coefficient K. Include the following steps:

[0028] 1) According to the current "Technical Code for Building Slope Engineering", when calculating slope stability, the permanent slopes in areas with a basic intensity of 7 degrees and above should be checked for slope stability under earthquake conditions.

[0029] Earthquake action can be simplified as a horizontal static force acting on the sliding body and pointing out of the slope (sliding normal direction), and its value should be calculated according to the following formula:

[0030] Q c = α w W (1)

[0031] In the formula, Q c is the seism...

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Abstract

The invention provides a displacement-based slope dynamic stability analysis method, including the investigation and mapping of slopes to be analyzed, the displacement of point A of slope shoulder under earthquake action (img file = 'DDA0001755567540000011. TIF' wi= '61' he= '63' / ) and the seismic stability coefficient K of slope are calculated. 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. 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 project site pays more attention to the displacement, esp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/20G06F2119/06Y02A10/23
Inventor 邱珍锋杨洋马河图曹婷王俊杰
Owner CHONGQING JIAOTONG UNIVERSITY
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