Seepage simulation method for dynamically deformed soil body

Abstract

The invention relates to a seepage simulation method for a dynamic deformation soil body, belongs to the technical field of seepage simulation, and aims to solve the problem that an existing seepage simulation device cannot perform dynamic deformation analysis on an experimental soil body. The seepage simulation method provided by the invention comprises the following steps: step S1, carrying out sample preparation on an experimental soil body, loading the experimental soil body into the inner wall of the seepage simulation device, and placing the seepage simulation device on a permeable crawler belt; s2, mounting a base plate and an upper cover above the experimental soil body, and fixedly connecting the base plate and the upper cover with a confining pressure control assembly; s3, applying confining pressure to the inner wall and the experimental soil body through an external confining pressure generation device, and performing seepage simulation on the experimental soil body through an external seepage generation device; and S4, controlling the permeable crawler belt to be in a static state or a dynamic deformation state, and performing a seepage experiment. Dynamic deformation of the soil body is realized through displacement and deformation of the permeable crawler belt, and then seepage simulation of the soil body in a deformation state is carried out through the seepage simulation device.

Description

technical field

[0001] The invention relates to the technical field of seepage simulation, in particular to a method for simulating seepage flow of dynamically deformed soil. Background technique

[0002] In recent years, there have been dozens of water inrush disasters caused by coal mining and underground engineering under loose aquifers, resulting in significant economic losses and serious social impacts. It can be seen that improving the recovery rate of resources and protecting water resources are the key issues to realize coal mining under water.

[0003] Considering the evolution characteristics of mining fissures in key water-resistant rock formations, under the action of seepage field and stress field, the key water-resistant formation system is a time-varying nonlinear seepage system. Whether seepage stability occurs after compaction and stability requires in-depth research and analysis. It is verified that the development height of a single water-conducting fract...

Examples

Embodiment Construction

[0070] The preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but not to limit the scope of the present invention.

[0071] A specific embodiment of the present invention, such as figure 1 As shown, a seepage simulation method for dynamically changing soil is provided, which is used to conduct seepage experiments on dynamically changing soil. Specifically, it includes the following steps:

[0072] (1) Step S1: Sample preparation and filling of the experimental soil.

[0073] Specifically, in step S1, before filling the experimental soil in the inner wall 04, the seepage and outflow analysis system is initialized, and the external motor control system controls the motor to drive the slide table and the con...

technical field

[0001] The invention relates to the technical field of seepage simulation, in particular to a method for simulating seepage flow of dynamically deformed soil. Background technique

[0002] In recent years, there have been dozens of water inrush disasters caused by coal mining and underground engineering under loose aquifers, resulting in significant economic losses and serious social impacts. It can be seen that improving the recovery rate of resources and protecting water resources are the key issues to realize coal mining under water.

[0003] Considering the evolution characteristics of mining fissures in key water-resistant rock formations, under the action of seepage field and stress field, the key water-resistant formation system is a time-varying nonlinear seepage system. Whether seepage stability occurs after compaction and stability requires in-depth research and analysis. It is verified that the development height of a single water-conducting fract...

Examples

Embodiment Construction

[0070] The preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but not to limit the scope of the present invention.

[0071] A specific embodiment of the present invention, such as figure 1 As shown, a seepage simulation method for dynamically changing soil is provided, which is used to conduct seepage experiments on dynamically changing soil. Specifically, it includes the following steps:

[0072] (1) Step S1: Sample preparation and filling of the experimental soil.

[0073] Specifically, in step S1, before filling the experimental soil in the inner wall 04, the seepage and outflow analysis system is initialized, and the external motor control system controls the motor to drive the slide table and the con...

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