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Numerical simulation research method and device for roadway surrounding rock damage under action of dynamic load

A numerical simulation and roadway technology, applied in CAD numerical modeling, electrical digital data processing, special data processing applications, etc., can solve problems such as lack of strong on-site guidance significance

Pending Publication Date: 2020-12-04
CHANGZHOU INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to improve the safety of the roadway, most of the research methods in related technologies are based on static analysis, which is relatively one-sided, has a large discrepancy with the actual situation on the spot, and lacks strong on-site guiding significance

Method used

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  • Numerical simulation research method and device for roadway surrounding rock damage under action of dynamic load
  • Numerical simulation research method and device for roadway surrounding rock damage under action of dynamic load
  • Numerical simulation research method and device for roadway surrounding rock damage under action of dynamic load

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] figure 1 It is a flow chart of a numerical simulation research method for roadway surrounding rock failure under dynamic load according to an embodiment of the present invention. like figure 1 As shown, the method includes the following steps:

[0033] S1, collecting geological information of the mining space. Among them, the geological information includes: surrounding rock grade, coal seam location, roadway location, dynamic load location and dynam...

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Abstract

The invention provides a numerical simulation research method and device for roadway surrounding rock damage under the action of dynamic load, and the method comprises the steps: collecting the geological information of an excavation space, wherein the geological information comprises the surrounding rock grade, the coal seam position and the roadway position; arranging monitoring points around the roadway surrounding rock according to the geological information; carrying out modeling by utilizing flac 2D; exporting a numerical simulation diagram; determining a roadway surrounding rock parameter distribution condition under the action of the dynamic load according to the numerical simulation diagram, and drawing a parameter broken line diagram according to the surrounding rock parameter distribution condition; and guiding the construction and mining of the roadway according to the parameter broken line graph. According to the method, a numerical simulation method is adopted for roadwaysurrounding rock damage under the dynamic load effect, roadway surrounding rock damage numeralization can be achieved, the surrounding rock damage situation can be reflected more efficiently, accurately and visually, and then a specific implementation method and a theoretical basis can be provided for roadway excavation and construction.

Description

technical field [0001] The invention relates to the technical field of surrounding rock analysis, specifically designing a numerical simulation research method for roadway surrounding rock failure under dynamic load and a numerical simulation research device for roadway surrounding rock failure under dynamic load. Background technique [0002] The roadway is the most critical part of the coal mining process. Work is carried out through the roadway. During the excavation and application of the roadway, it is often encountered that the movement of vehicles, pedestrians, or rock bolts in the surrounding rock of the roadway will cause damage to the surrounding rock. . Therefore, more serious roadway surrounding rock accidents such as subsidence and rockburst will be caused. [0003] In order to improve the safety of the roadway, most of the research methods in related technologies are based on static analysis, which is relatively one-sided, has a large discrepancy with the actu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F111/10G06F119/14
CPCG06F30/13G06F2111/10G06F2119/14
Inventor 章凌宇王正义王金羽蔡啟辉王文龙丁康
Owner CHANGZHOU INST OF TECH
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