Striping method capable of accurately calculating inter-striping force inclination angle and slope stability safety coefficient

A technology of safety factor and accurate calculation, applied in the field of slope stability calculation, which can solve problems such as non-convergence of moment balance equation

Active Publication Date: 2020-10-23
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0020] In view of this, the present invention provides a semi-accurate slitting method that can accurately calculate the inclination angle of the force between the slivers and then solve the slope stability safety factor based on the static force balance equation, and a meth...

Method used

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  • Striping method capable of accurately calculating inter-striping force inclination angle and slope stability safety coefficient
  • Striping method capable of accurately calculating inter-striping force inclination angle and slope stability safety coefficient
  • Striping method capable of accurately calculating inter-striping force inclination angle and slope stability safety coefficient

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Embodiment Construction

[0078] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0079] The invention provides a slitting method that can accurately calculate the inclination angle of force between slats and the safety factor of slope stability, which includes the following calculation formulas:

[0080]

[0081]

[0082]

[0083]

[0084]

[0085] C i =c i / k (6)

[0086]

[0087]

[0088] A i =(W i -Q i )sinα i +P di cosα i -P ti sin(α i +θ pti )-(U ti -U ti-1 )cosα i (9)

[0089]

[0090]

[0091]

[0092]

[0093] In the above formula, i=0,1,2,...,n, n is a natural number, i represents the subsection number, k is the slope stability safety factor, ψ i is the interaction force inclination angle (°) between the i-th and i+1-th strips, E i and x i are the horizontal component forc...

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Abstract

The invention relates to the field of slope stability calculation methods, in particular to a striping method capable of accurately calculating an inter-striping force inclination angle and a slope stability safety coefficient. A striping method for calculating an inter-striping force inclination angle and a slope stability safety coefficient comprises the following steps: S1, calculation parameters are determined according to slope survey data, S2, a sliding body of a slope is divided into a plurality of vertical stripes, S3, the inclination angle of inter-striping acting force is calculated,and S4, the slope stability safety coefficient is calculated through a semi-accurate striping method or an accurate striping method. The invention discloses a striping method capable of accurately calculating an inter-striping force inclination angle and a slope stability safety coefficient. The bottleneck that the existing slitting method depends on the assumed direction or position of the inter-slitting force to solve the statically indeterminate problem is broken through; based on the Mohr-Coulomb criterion, the function relationship between the ratio of the shearing force to the normal force between the strips and the sliding surface inclination angle, the shearing strength parameter, the strip physical property parameter and the load is theoretically deduced, so that the statically indeterminate strip division problem obtains a statically determinate solution.

Description

technical field [0001] The invention relates to the field of slope stability calculation methods, in particular to a slice method that can accurately calculate the force inclination angle between strips and the slope stability safety factor. Background technique [0002] The slice method is developed based on the limit equilibrium theory and is a simple method for calculating the stability of slopes (including natural slopes and artificial slopes) that may be damaged by landslides. It is widely used in slope stability analysis and slope protection engineering. design. After nearly a hundred years of development, dozens of segmentation methods have appeared, and the differences of various segmentation methods can be attributed to: (1) the static equations used to derive the stability coefficient are different; The assumptions that determine the problem are different. Based on the different static equations used to derive the stability coefficient, the slice method can be di...

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Application Information

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IPC IPC(8): G06F30/23G06F119/14
CPCG06F30/23G06F2119/14Y02A10/23
Inventor 苏爱军冯明权鲁志春林宇许泽坤毛浩然林世权杨世文邵晨关力豪甘昭文仝德富
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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