Method for detecting and analyzing evolution process of structure of surrounding rock in area of deep tunnel of coal mine

An analysis method and technology of surrounding rock, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, etc., can solve problems such as difficult to grasp the change process, difficult to reflect the regional characteristics of the surrounding rock structure, and difficult to cover the entire area of ​​the surrounding rock with test drilling, etc. To achieve the effect of improving accuracy and reliability, and improving efficiency
CN104597130AActive Publication Date: 2015-05-06INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
6 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
Publication Date
2015-05-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for detecting and analyzing the evolution process of the structure of surrounding rock in the area of a deep tunnel of a coal mine. The method comprises the following steps: (1) distributing testing drill holes in a to-be-detected area of the surrounding rock of the deep tunnel of the coal mine, and installing and propelling digital drill hole picture taking probes in the drill holes in sequence to obtain the principle on evolution of the propagation characteristic of sound waves along with time in the drill holes of the surrounding rock, wherein the drill holes are arranged in parallel, and have the same depth as the to-be-detected area of the surrounding rock; (2) obtaining the spacial distribution of the volumetric joint count (Jv) of the surrounding rock in the area of the deep tunnel according to single hole structure surface information; (3) obtaining the spacial distribution of the integrity index (Kv) of the surrounding rock in the area of the deep tunnel and the evolution principle of the surrounding rock by taking the propagation of sound waves of adjacent drill holes in the area of the deep tunnel as a boundary condition; and (4) comparing the integrity index, the volumetric joint count (Jv), with the integrity index (Kv) of the surrounding rock comprehensively to obtain the evolution process of the structure of the surrounding rock in the area of the deep tunnel of the coal mine. The method disclosed by the invention is practical, is easy and convenient to operate and is used for obtaining the integrity and evolution principle of the structure of the surrounding rock before and after excavating the tunnel of the coal mine so as to provide scientific basis for the stable control and security evaluation of the surrounding rock of the deep tunnel of the coal mine.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The present invention belongs to the field of exploration and analysis technology of rock body structure, which specifically involves a detection and analysis method that is suitable for the evolution of the evolution of rock structure evolution in the deep alley in the coal mine. Background technique

[0002] Affected by the geological environment and human excavation activities, there are a large number of structural surfaces in the deep lane surrounding rocks of coal mines.These structures are often parts with relatively weak intensity of the surrounding rock mechanics. It leads to the discontinuousness, unevenness, and the opposite sex of the nature of surrounding rock mechanics. The spatial distribution and combination areThe important impact.Therefore, it is of great significance to detect and analyze the structure of surrounding rocks and master its evolution process.

[0003] At present, the main means of surrounding rock structure detection are sti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More