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Method for acquiring relation curve of atomized rain intensity and slope safety coefficient

A safety factor and relationship curve technology, applied in the field of water conservancy engineering protection, can solve the problems of low generalization strength, time-consuming and expensive, and unsafe slope protection design.

Pending Publication Date: 2021-11-23
NANJING HYDRAULIC RES INST
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (1) The discontinuous distribution of atomized rain intensity distribution deviates from engineering practice. If the generalized intensity is large, the slope protection design will be time-consuming and costly, and if the generalized intensity is small, it will be unsafe

Method used

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  • Method for acquiring relation curve of atomized rain intensity and slope safety coefficient
  • Method for acquiring relation curve of atomized rain intensity and slope safety coefficient
  • Method for acquiring relation curve of atomized rain intensity and slope safety coefficient

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The infiltration of a high dam is simulated by using the method of obtaining slope stability safety coefficient curves under different intensity distributions of atomized rain:

[0043] The continuous distribution of atomized rain intensity corresponding to the elevation on the slope is obtained through actual measurement, as shown in figure 1 shown.

[0044] 1) The seepage finite element numerical simulation method is used to simulate the saturated-unsaturated seepage field of the slope during the rain and fog infiltration process, and the seepage field is converted into the distribution mode of seepage force load. Such as figure 2 , 3, 4 shown.

[0045] 2) Applying the principle of the limit equilibrium method to construct the calculation model of the slope stability safety factor; refers to:

[0046] Using the Morgenstern-Price limit equilibrium analysis method, the safety factor is assumed first, and the safety factor of the corresponding sliding surface is obta...

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Abstract

The invention relates to a method for acquiring a relation curve between different atomized rain intensity distributions and slope stability safety coefficients under different geotechnical materials, which belongs to the field of slope stability of water conservancy projects. The method comprises the following steps: 1) giving seepage field load distributions under different atomized rain intensity distributions; 2) constructing a slope stability safety coefficient calculation model by applying the principle of a limit equilibrium method; 3) carrying out corresponding stability safety coefficient calculation; 4) drawing a relation curve between the atomized rain intensity distribution and the slope stability safety coefficient. The method has the beneficial effects that the slope stability analysis method under the atomization rain slope continuous distribution intensity is provided; according to the method, change characteristics between atomization rain intensity distribution and slope stability and safety are truly reflected; the relation curve provided by the method shows the time history change characteristics of the stability safety coefficient.

Description

technical field [0001] The invention relates to a method for obtaining a slope safety curve downstream of a reservoir, in particular to a method for obtaining an influence curve on a slope safety coefficient when there is atomized rainfall downstream of a high dam, and belongs to the field of water conservancy engineering protection. Background technique [0002] In recent years, with the implementation of my country's energy strategy, water conservancy has developed tremendously. my country has built a large number of high dams and super high dams, and the atomization phenomenon associated with flood discharge has attracted widespread attention. Among them, the stability of the flood discharge atomized rain slope is more prominent. Because the rainfall intensity and its influence range are quite large, compared with the conventional natural rainfall, the threat and damage to the auxiliary buildings of the water conservancy project and the downstream bank slope are much great...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/28G06F111/10G06F113/08G06F119/14
CPCG06F30/23G06F30/28G06F2111/10G06F2113/08G06F2119/14
Inventor 段祥宝韩昌海谢罗峰李景娟余之光余凯文
Owner NANJING HYDRAULIC RES INST
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