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Roof unsupported area detection and roadway repair method based on radar detection technology

A technology of detection technology and repair method, which is applied in the field of roof empty roof area detection and roadway repair based on radar detection technology, can solve the problems of large secondary caving, wood stacks are not as dense as rocks, and personal safety is difficult to guarantee, so as to achieve enhanced The effect of a holistic, reliable approach

Inactive Publication Date: 2016-11-16
ANHUI UNIV OF SCI & TECH
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  • Summary
  • 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 Method for Roof Empty Area Detection and Roadway Repair Based on Radar Detection Technology

Method used

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  • Roof unsupported area detection and roadway repair method based on radar detection technology
  • Roof unsupported area detection and roadway repair method based on radar detection technology
  • Roof unsupported area detection and roadway repair method based on radar detection technology

Examples

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Embodiment 1

[0056] A method for detecting an empty roof area on a roof and repairing 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 caving roof of the roadway and the fallen gangue pile are consolidated into a stable whole under the action of the grouting fluid. Excavation of the fallen gangue pile;

[0060] (4) Support: When the excavation reach...

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Abstract

The invention discloses a roof unsupported area detection and roadway repair method based on the radar detection technology. The fracture situation of the rock stratum above roof falling gangue is detected through the radar detection technology, and grouting holes are formed according to the detected situation; and the aim of roadway repair is achieved through the steps of grouting, tunneling, supporting and the like. According to the roof unsupported area detection and roadway repair method based on the radar detection technology, the unsupported area and part of the roof falling gangue are reinforced through grouting falling, and the roof unsupported area detection and roadway repair method based on the radar detection technology provides a simple, safe and reliable processing method for roadway roof collapse.

Description

technical field [0001] The invention relates to the field of mining, in particular to a method for detecting an empty roof area of ​​a roof and repairing a roadway 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D11/15E21D11/18E21D20/00G01S13/88
CPCE21D11/10E21D11/155E21D11/18E21D20/003G01S13/88
Inventor 庞冬冬王文杰
Owner ANHUI UNIV OF SCI & TECH
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