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A method, device and electronic equipment for simulating the failure process of a rockburst test piece

A technology of rockburst and test pieces, applied to devices and electronic equipment, and a method field for simulating the destruction process of rockburst test pieces, which can solve the problems that cannot be used to simulate the cracking process of rock test pieces in rockburst experiments. Problems such as the energy consumption calculation of rockburst debris and the difficulty in the study of rockburst mechanism have been achieved, which is beneficial to the calculation of rockburst debris energy consumption, research, and rockburst mechanism.

Active Publication Date: 2021-09-24
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] During the rockburst experiment, the free surface will be formed after unloading suddenly, and the rockburst debris will be ejected towards the free surface, and the specimen will be broken at the same time, and the zero-order particle crushing model will break randomly in all directions, so the zero-order The particle pulverization model cannot be used to simulate the fracture process of rock specimens in rockburst experiments
Due to the influence of the stiffness of the experimental system and the homogeneity of materials, it is difficult to realize the rockburst state simulated by the shear throwing model in the rockburst experiment
Therefore, neither of the above two rock breakage models can be used to simulate the rock breakage phenomenon caused by the release of energy along the free surface during the rockburst experiment, which will cause certain difficulties in the calculation of the energy consumption of rockburst debris and the study of the rockburst mechanism.

Method used

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  • A method, device and electronic equipment for simulating the failure process of a rockburst test piece
  • A method, device and electronic equipment for simulating the failure process of a rockburst test piece
  • A method, device and electronic equipment for simulating the failure process of a rockburst test piece

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Embodiment 1

[0038] Such as image 3 As shown, the embodiment of the present invention provides a method for simulating the failure process of a rockburst test piece, including:

[0039] S101, constructing a rockburst specimen model of the same proportion according to the rockburst specimen used in the rockburst test, and selecting any side of the rockburst specimen model as the free surface for rockburst simulation;

[0040] S102, performing a first-level fracture simulation on the rockburst specimen model along the free surface direction and according to a preset rupture ratio, to obtain a first-level rockburst debris model;

[0041] S103, performing a secondary fracture simulation on the primary rockburst debris model along the direction of the free surface, according to the same rupture ratio and preset fracture probability as the primary fracture simulation, to obtain a secondary rockburst debris model;

[0042] S104, perform a third-level fracture simulation on the second-level rock...

Embodiment 2

[0066] Such as Figure 6 As shown, another aspect of the present invention also includes a functional module architecture that is completely consistent with the aforementioned method flow, that is, an embodiment of the present invention also provides a device for simulating the destruction process of a rockburst specimen, including:

[0067] Rockburst specimen model building module 201, is used for constructing the rockburst specimen model of the same proportion according to the rockburst specimen adopted in rockburst test, and any side of described rockburst specimen model is selected as rockburst simulation the airside;

[0068] The first-level fracture simulation module 202 is used to simulate the first-level fracture of the rockburst specimen model along the direction of the free surface and according to the preset rupture ratio, so as to obtain the first-level rockburst debris model;

[0069] The secondary fracture simulation module 203 is used to simulate the secondary ...

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Abstract

The invention discloses a method, device and electronic equipment for simulating the destruction process of a rockburst test piece. According to the rockburst specimen used in the rockburst test, a rockburst specimen model of the same proportion is constructed; the rockburst specimen model is simulated along the direction of the free surface and according to the preset rupture ratio, and the first-level rockburst fragmentation is obtained. Debris model; the first-level rockburst debris model is simulated along the free surface, according to the same rupture ratio and preset rupture probability as the first-level fracture simulation, and the second-level rockburst debris model is obtained; the second-level rockburst debris model is obtained; The rockburst debris model is simulated along the air surface, according to the same rupture ratio and rupture probability as the secondary rupture simulation, to obtain the third-level rockburst debris model; The number of rockburst debris models greater than a preset value reaches a threshold. Therefore, the method provided by the invention can simulate the rupture along the free surface during the rockburst test, which is beneficial to the energy consumption calculation of rockburst debris and the research of rockburst mechanism.

Description

technical field [0001] The invention relates to the technical field of rockburst, in particular to a method, device and electronic equipment for simulating the destruction process of a rockburst test piece. Background technique [0002] Rockburst is a sudden geological disaster that occurs during or after the excavation of underground engineering under high ground stress conditions. It generally refers to a nonlinear dynamic phenomenon in which energy rock mass releases energy instantaneously along the excavation face. The rapid release of energy caused by rock rupture during the rockburst process is the root cause of rockburst disasters, mainly manifested in the rupture and ejection of rock fragments. Carrying out laboratory experiments is an important means to study the mechanism of rockburst. Establishing a rockburst failure model can be used to analyze the rock fracture process and energy consumption during the rockburst occurrence. [0003] At present, there are mainly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F119/20
CPCG06F30/20G06F2119/20
Inventor 李德建祁浩李春晓韩超
Owner CHINA UNIV OF MINING & TECH (BEIJING)