Structure and method for reinforcing walls filled in gob-side retained tunnel by arranging three-dimensional reinforcing ribs in walls

A technology for filling walls and reinforcing ribs, which is applied in the direction of fillings, safety devices, earthwork drilling and mining, etc. It can solve problems such as difficult to effectively control the displacement of walls, and achieve the effects of wide practicability, simple and fast construction, and easy construction

Inactive Publication Date: 2010-06-16
CHINA UNIV OF MINING & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although the above method can reduce the deformation and slippage of the filling wall, it is still difficult to effectively control the displacement of the wall.

Method used

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  • Structure and method for reinforcing walls filled in gob-side retained tunnel by arranging three-dimensional reinforcing ribs in walls
  • Structure and method for reinforcing walls filled in gob-side retained tunnel by arranging three-dimensional reinforcing ribs in walls
  • Structure and method for reinforcing walls filled in gob-side retained tunnel by arranging three-dimensional reinforcing ribs in walls

Examples

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Example Embodiment

[0019] The present invention will be further described below in conjunction with the embodiments in the accompanying drawings:

[0020] The built-in three-dimensional reinforcing rib of the present invention reinforces the backfill wall structure of the gob-side entry retaining, which is composed of a backfill wall 3 filled between the top plate 1 and the bottom plate 2 and a grid-shaped three-dimensional reinforcing bar 4 installed in the backfill wall 3 . The grid-shaped three-dimensional reinforcing bars 4 are woven from screw steel, round steel or flat steel, and the row spacing between the braided three-dimensional reinforcing bars 4 is 0.8-1.6 m.

[0021] In the method of the present invention for reinforcing gob-side entry retaining walls with built-in three-dimensional reinforcing ribs, after the working face is mined, prefabricated or on-site grid-like three-dimensional reinforcing ribs 4 are placed in the area to be filled, and the grid-like three-dimensional reinforc...

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Abstract

The invention relates to a structure and a method for reinforcing walls filled in a gob-side retained tunnel by arranging three-dimensional reinforcing ribs in the walls. The structure comprises walls filled in a gob-side retained tunnel and the latticed three-dimensional reinforcing ribs which are arranged in the walls. Because the latticed three-dimensional reinforcing ribs are arranged in the walls, the slip of the walls is restricted, the walls beside the gob-side retained tunnel are reinforced, the integral walls formed by filling and combining are firmer, the deforming and sliding resisting ability of the walls is greatly improved, the inward sliding of the walls beside the gob-side retained tunnel is effectively prevented, the cross section of tunnel behind the gob-side retained tunnel is effectively maintained and the safety of the gob-side retained tunnel is ensured. The structure is simple and is easy to construct, and the method is convenient, safe and reliable, thus the structure and the method are widely practical.

Description

technical field [0001] The invention relates to a structure and a method for reinforcing the filling wall of gob-side entry retaining with built-in three-dimensional reinforcing ribs, and is especially suitable for strengthening the filling wall of mining underground mining roadways in mines. Background technique [0002] The technology of gob-side entry retention has been used in the world mining field for quite a long time. Its essence is to use the method of supporting wooden pillars, masonry gangue belts or filling concrete in the mining roadway behind the mined working face along the gob. The area is reserved as the recovery roadway of the next working face. [0003] With the continuous development of science and technology and mining mechanization, it is more and more common to use masonry to fill the wall of the gob-side entry retaining. At the same time, it bears the lateral pressure during the roof rotation process of the masonry beam structure formed after the old...

Claims

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Application Information

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IPC IPC(8): E21F15/00
Inventor 张农郑西贵薛俊华阚甲广袁亮李桂臣王成
Owner CHINA UNIV OF MINING & TECH
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