A mine-used arc-shaped anti-scouring closed wall and its construction method

A construction method and airtight wall technology, applied in mining equipment, mining equipment, earthwork drilling and mining, etc., can solve problems such as insufficient strength to resist air waves, threats to mine safety production, and economic losses in coal mines, so as to ensure the airtight effect and strength Requirements, ensure the compactness of concrete, and reduce the effect of construction period

Inactive Publication Date: 2017-07-28
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strong air shock wave will break the airtight, causing casualties and equipment damage
The impact air waves caused by mine earthquakes seriously threaten the safe production of mines and cause huge economic losses to coal mines
In the prior art, the technical scheme described in the publication number: 102777208A, publication date: November 14, 2012, titled "A Construction Method for Anti-impact Airtight Wall for Mine" has a simple structure and cannot meet the requirements of resistance in terms of strength. blast request

Method used

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  • A mine-used arc-shaped anti-scouring closed wall and its construction method
  • A mine-used arc-shaped anti-scouring closed wall and its construction method
  • A mine-used arc-shaped anti-scouring closed wall and its construction method

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Embodiment Construction

[0049] According to the accompanying drawings, a kind of arc-shaped anti-scouring airtight wall for mines is firstly slotted at the position where the roadway needs to be sealed before making the present invention. The grooves are continuously distributed along the left and right side of the roadway, the top plate, and the bottom plate, and the depth of the cut is 500 mm. The width is 500-800 mm. According to the incoming direction of air waves, from the inside to the outside, there are diversion layer (3), filling layer (4), curved steel plate layer (5), concrete airtight wall (6), and flat steel plate layer (7). The layers all reach the left and right lane sides, roof and floor cut boundaries (2). An annular diversion arc (33) is arranged around the windward surface of the diversion layer (3), and a central protrusion (34) is arranged in the center, and the diversion arc (33) and the central protrusion (34) form a ring-mounted groove (35), the ring dress groove (35) ring is...

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Abstract

The present invention is an arc-shaped anti-scouring airtight wall for mining. Before making the present invention, grooves are firstly made at the position where the roadway needs to be airtight. 500‑800 mm. According to the incoming direction of the air wave, the present invention includes diversion layer, filling layer, arc-shaped steel plate layer, concrete airtight wall, and flat steel plate layer from the inside to the outside, and the above-mentioned layers all reach the left and right side of the road, the top plate, and the cutout boundary of the bottom plate. .

Description

technical field [0001] The invention belongs to a mine airtight device, in particular to a mine arc-shaped anti-scouring airtight wall. Background technique [0002] The reserves of shallow-buried coal resources in the central and eastern regions of my country are gradually decreasing, and more and more mines have entered the stage of deep mining, and deep mining is more likely to induce mine earthquake disasters. With the advancement of mining in the working face, after a large area of ​​hard overlying rock is suspended in the goaf, the stress concentration of the surrounding rock increases, and the accumulated strain energy of the rock mass increases. As the stress continues to increase, the hard overlying rock will instantly fall, causing Mine earthquake disaster, and compressed air produces strong air waves. Intense air shock waves can break the enclosure, causing casualties and equipment damage. The impact air waves caused by mine earthquakes seriously threaten the sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/103E21D11/00E21D20/00
CPCE21F17/103
Inventor 张开智刘志河姬松涛潘瑞凯王树立吴业聃刘保成
Owner SHANDONG UNIV OF SCI & TECH
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