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Wedge Stability Analysis Method Based on Stereographic Polar Projection and Deformation Analysis

A technology of deformation analysis and analysis method, which is applied in the direction of complex mathematical operations, can solve difficult problems such as wedge-shaped stability coefficients, and achieve the effects of avoiding inaccuracy, simple engineering application, and clear concept of the method

Active Publication Date: 2021-08-31
SHENZHEN LOTUT INNOVATION DESIGN CO LTD
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Problems solved by technology

When performing wedge stability analysis, only the geometric direction of the wedge is considered, and it is difficult to accurately obtain the stability coefficient of the wedge

Method used

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  • Wedge Stability Analysis Method Based on Stereographic Polar Projection and Deformation Analysis
  • Wedge Stability Analysis Method Based on Stereographic Polar Projection and Deformation Analysis
  • Wedge Stability Analysis Method Based on Stereographic Polar Projection and Deformation Analysis

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Embodiment 1

[0036] Stereographic projection is a pole projection method, which can express the three-dimensional relative positional relationship of spatial lines and surfaces in two-dimensional space. The intersection of the structural surface and the projection sphere results in the spherical projection of the structural surface. A ray is emitted from a spherical pole to each point on the circumference of the spherical projection of the structure surface, and the trajectory of the intersection point of the ray and the equator plane constitutes the great circle stereographic projection of the structure surface.

[0037] see Figure 8 , the present embodiment discloses a wedge stability analysis method based on stereopolar projection and deformation analysis, comprising the following steps:

[0038] 1) Using stereopolar projection to determine the spatial geometry and mechanical characteristics of the slope wedge. The potential sliding wedges are searched in the rock mass with multiple ...

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Abstract

The invention provides a wedge stability analysis method based on stereopolar projection and deformation analysis. This method uses the stereographic projection method to analyze the force of the wedge. Since the shear strength of the structural plane of the wedge has different influences on the stability of the wedge, the weight parameters of the structural plane of the wedge are derived by using its mechanical characteristics. List the weight parameters when only considering the effect of internal friction angle, considering the effect of internal friction angle and cohesion force, and comprehensively considering the effect of internal friction angle, cohesion force and water head. Refer to the test data and relevant specifications to list the maximum shear strain of the single structural plane slope, use the weight parameters obtained from the solution to solve the maximum shear strain of the wedge, set the safety factor of the wedge to derive the critical displacement value, according to the monitoring The position relationship between the point and the intersection line of the structural surface, and the relationship between the displacement of the monitoring point and the maximum shear strain is judged. The concept of the method is clear and the engineering application is simple.

Description

technical field [0001] The invention relates to a wedge stability analysis technology, in particular to a wedge stability analysis method based on stereopolar projection theory and deformation analysis. Background technique [0002] Since the 1960s, scholars at home and abroad began to carry out research work on landslide prediction. Although scholars have made unremitting efforts and achieved many achievements in landslide prediction, landslide prediction has not been effectively solved due to the discreteness and complexity of rock and soil mass. [0003] Wedge failure is a main instability mode of rock slopes, and occupies an important position in the slope instability modes. In practical engineering, how to judge the stable state of wedge-shaped body according to its deformation is an important issue. [0004] Wedge failure will occur when the anti-slip force is insufficient to resist the downward force. Wedge instability failure is a cumulative failure process. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/10
CPCG06F17/10
Inventor 王俊杰冯登刘闽楠赵天龙郭建军张慧萍
Owner SHENZHEN LOTUT INNOVATION DESIGN CO LTD
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