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Roadway roof-fall zone detection and processing method based on radar detection technique

A detection technology and roadway roof fall technology, which is applied in tunnels, measuring devices, earthwork drilling and mining, etc., can solve the problems of large secondary caving, wooden stacks are not as dense as rocks, and personal safety is difficult to guarantee, so as to enhance integrity and reliability The effect of the treatment

Active Publication Date: 2016-08-24
SHANXI YUNQUAN GEOTECHNICAL ENG TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method is to connect the empty roof area with wooden piles while clearing the falling gangue, and install the backboard and metal brackets under the wooden piles according to the design outline of the roadway. It is difficult to guarantee personal safety when working in a goaf area without support. In addition, wooden stacks are far less dense than rocks, and the possibility of secondary caving under weak surrounding rocks is extremely high. The timber used for roofing is easy to rot and deteriorate in a humid environment, so it is urgently needed A Simple, Safe and Reliable Detection and Processing Method of Roadway Roof Fall Area Based on Radar Detection Technology

Method used

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  • Roadway roof-fall zone detection and processing method based on radar detection technique
  • Roadway roof-fall zone detection and processing method based on radar detection technique
  • Roadway roof-fall zone detection and processing method based on radar detection technique

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Embodiment 1

[0056] A method for detecting and processing a roof fall area in a roadway based on radar detection technology, comprising the following steps:

[0057] (1) Use radar detection technology to detect the cracking of the rock strata above the caving gangue, and determine whether the caving of the roof of the roadway forms a void roof, the volume of the void roof when a void roof is formed, and the distance between the void roof area or the top of the caving belt and the roof of the roadway Height difference, set at least one grouting hole in the empty top area and multiple grouting holes in the caving zone according to the detection situation;

[0058] (2) Grouting and sealing;

[0059] (3) Excavation: After the grouting is completed, the goaf formed by the collapse of the roadway roof and the fallen gangue pile are consolidated into a stable whole under the action of the grouting fluid. Use the YT28 rock drill to follow the design contour of the roadway line, to excavate the pi...

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Abstract

The invention discloses a roadway roof-fall zone detection and processing method based on a radar detection technique. The roadway roof-fall zone detection and processing method comprises the following steps: firstly, detecting the rock stratum cracking situation above roof-fall gangue by using the radar detection technique, and setting grouting holes according to the detection situation; grouting, sealing holes, tunneling roof-fall gangue after grouting is cured, finally supporting sections of tunneled roadways, and grouting and curing in later periods. By adopting the roadway roof-fall zone detection and processing method based on the radar detection technique, a simple, safe and reliable treatment method is provided for roadway roof-fall zones.

Description

technical field [0001] The invention relates to the field of mining, in particular to a method for detecting and processing a tunnel roof fall area based on radar detection technology. Background technique [0002] Due to poor surrounding rock conditions or external stress disturbances, large-scale roof caving often occurs in underground roadways. In order to ensure that the roadway satisfies its use characteristics during the service period, it is necessary to remove the fallen gangue and at the same time clean the roof caving area. The surrounding rock is reinforced to restore the smoothness of the roadway. The traditional method is to connect the empty roof area with wooden piles while clearing the falling gangue, and install the backboard and metal brackets under the wooden piles according to the design outline of the roadway. It is difficult to guarantee personal safety when working in a goaf area without support. In addition, wooden stacks are far less dense than rock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D20/00E21D11/10E21D21/00G01S13/88
CPCE21D11/105E21D20/003E21D21/0026G01S13/88
Inventor 金英子
Owner SHANXI YUNQUAN GEOTECHNICAL ENG TECH CO LTD
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