Mining cambered anti-impact sealing wall and construction method of mining cambered anti-impact sealing wall

A closed wall and arc-shaped technology, which is applied in mining equipment, mining equipment, earth drilling and mining, etc., can solve the problems that the strength cannot meet the resistance to air waves, threaten mine safety production, and coal mine economic losses, so as to ensure the sealing effect and strength Requirements, ensure the compactness of concrete, and reduce the effect of construction period

Inactive Publication Date: 2015-01-28
SHANDONG UNIV OF SCI & TECH
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  • 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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  • Mining cambered anti-impact sealing wall and construction method of mining cambered anti-impact sealing wall
  • Mining cambered anti-impact sealing wall and construction method of mining cambered anti-impact sealing wall
  • Mining cambered anti-impact sealing wall and construction method of mining cambered anti-impact sealing wall

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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 invention relates to a mining cambered anti-impact sealing wall. Before the wall is manufactured, a slot is formed in a position where a tunnel is needed to be sealed; the slot is continuously distributed along left and right tunnel walls of the tunnel, a top plate and a bottom plate; the slot is 500 mm in depth and 500-800 mm in width. According to a direction where air billows come, the mining cambered anti-impact sealing wall comprises a stream guide layer, a filling layer, a cambered steel plate layer, a concrete sealing wall and a plane steel plate layer from inside to outside in sequence, wherein each layer reaches to the slotting borders of the left and right tunnel walls, the top plate and 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 Applications(China)
IPC IPC(8): E21F17/103E21D11/00E21D20/00
CPCE21F17/103
Inventor 张开智刘志和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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