A Simulation Method of Soil Internal Erosion Deformation Response

A simulation method and soil technology, applied in soil material testing, sampling, instruments, etc., to achieve the effect of high simulation efficiency, high accuracy and speeding up the simulation speed

Active Publication Date: 2022-04-22
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of post-corrosion simulation of soil seepage damage, and propose a simulation method for soil internal erosion deformation response

Method used

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  • A Simulation Method of Soil Internal Erosion Deformation Response
  • A Simulation Method of Soil Internal Erosion Deformation Response
  • A Simulation Method of Soil Internal Erosion Deformation Response

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Embodiment Construction

[0035] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0036] Before describing the specific embodiments of the present invention, in order to make the scheme of the present invention more clear and complete, at first the abbreviations and key term definitions that appear in the present invention are explained:

[0037] Voronoi lattice: It is composed of continuous polygons composed of the perpendicular lines connecting the contact points of each particle in the model.

[0038] Such as figure 1 As shown, the present invention provides a soil internal erosion deformation response simulation method, comprising the following steps:

[0039] S1: Collect soil samples, construct a numerical simulation sample model, and pressurize and consolidate the numerical simulation sample model according to the actual stress state of the soil;

[0040] S2: In the numerical simulation sample model, the stress reduction coeff...

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Abstract

The invention discloses a soil internal erosion deformation response simulation method, comprising the following steps: S1: collecting a soil sample, constructing a numerical simulation sample model, and pressurizing the numerical simulation sample model according to the actual stress state of the soil Consolidation; S2: Calculate the stress reduction coefficient of each fine particle in the numerical simulation sample model; S3: Generate the statistical distribution map of the stress reduction coefficient of fine particles in the numerical simulation sample model; S4: Calculate the fine particle in the soil sample The critical value of the stress reduction coefficient of particle erosion is to determine the total amount of fine particle erosion; S5: determine the erosion deformation sample model; S6: determine the strength characteristics and deformation characteristics of the erosion deformation sample model; S7: determine the total amount of fine particle erosion , strength characteristics and deformation characteristics as the simulation results of soil internal erosion deformation response. The invention judges the erodible particles based on the stress state of the particles and the hydraulic gradient to be applied, which conforms to the actual erosion conditions.

Description

technical field [0001] The invention belongs to the technical field of simulation of soil erosion response, and in particular relates to a simulation method of soil internal erosion deformation response. Background technique [0002] As one of the main forms of instability of earth-rock dams and dams, seepage failure often occurs in poorly graded cohesionless soils. Under the action of seepage damage, the fine particles in poorly graded cohesionless soil are easily eroded by water flow, which affects the physical and mechanical properties of the soil, and even leads to the destruction of the soil structure. Quickly determine the erosion characteristics of poorly graded cohesionless soil materials under the action of different seepage fields, and conduct effective simulation and analysis of their post-erosion responses, which are important for seepage safety assessment and emergency treatment of dam foundations and dams. meaning. [0003] Reasonably determining the erosion ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N33/24
CPCG01N1/286G01N33/24
Inventor 李维朝李少波田继雪宋建正武富强蔡红谢定松邓刚严俊仲琦楚一帆智斌
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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