A concrete modular gob-side roadway support structure for coal pillar-free mining

A support structure and concrete technology, which is applied in mining equipment, earthwork drilling, shaft equipment, etc., can solve the problems of working efficiency of the wall not connected to the top, long concrete solidification time, and influence of wall stubble, so as to speed up cycle production progress, reduce roadway maintenance costs, and eliminate the effect of setting time

Active Publication Date: 2022-03-15
山西煤炭运销集团晋城有限公司
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Problems solved by technology

[0005] The present invention overcomes the deficiencies of the prior art, and proposes a concrete modular gob-side entry support structure for mining without coal pillars. It is very easy to leak grout, high labor intensity, concrete pouring time, long concrete solidification time, wall not connected to the top and low work efficiency and other problems

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  • A concrete modular gob-side roadway support structure for coal pillar-free mining
  • A concrete modular gob-side roadway support structure for coal pillar-free mining
  • A concrete modular gob-side roadway support structure for coal pillar-free mining

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[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention, the present invention will be described in further detail in conjunction with examples and drawings. It is to be understood that the specific embodiments described herein are intended to explain the present invention and is not intended to limit the invention. The technical solutions of the present invention will be described in connection with the examples and drawings, but the scope of protection is not limited.

[0037] Coalstone column mining concrete modular coal-column support structure concrete modular wall consisting of three parts:

[0038] (1) The upper layer is the top-unloading module, including the top intermediate concrete module 3, the top concrete module 4, the top slot concrete module 5, the top intermediate concrete module 3 design size is 1100mm; the panel design, the intensity of concrete The level is C30, the concrete module is a th...

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Abstract

The invention discloses a concrete modular gob-side roadway support structure for mining without coal pillars, which belongs to the technical field of mineral resource mining; on the basis of the technology of flexible mold concrete gob-side roadway retention, a concrete modular gobside roadway for mining without coal pillars is proposed. Empty roadway support structure, the concrete modular wall consists of three parts: the upper roof unloading module, the middle wall layer module, and the lower foundation module, wherein the roof unloading module includes the roofing intermediate concrete module and the roofing concrete module 1. A concrete module connected to the roof gap, the top surface of the wall layer module is provided with a plurality of strip-shaped semicircular protrusions and semicircular grooves to prevent the module from sliding; The number of excavated roadways reduces the cost of roadway maintenance, and the modular concrete can be recycled and reused, which greatly reduces the support production cost.

Description

Technical field [0001] The present invention relates to a coal-free collapsed concrete modular along empty-forming road support structure, which belongs to the technical field of mineral resources mining. Background technique [0002] At present, most coal mines have been close to the depletion, and the valuable coal resources have not achieved full use. The resource recovery rate in the mine is more than 65%, and the actual return rate of the coal mining surface is also maintained at a lower level. 80%; one-time highlight is limited to the mine of medium and thick coal seams with good coal mining machinery, and the amount of mine damage of equipment is more serious. Each coal mining surface should be a large amount of security coal columns, and mineral resources cannot achieve full use. [0003] In 2002, Professor Wang Xiaoli, Xi'an University of Science and Technology, developed successfully soft molding of concrete, along the air, inserted by a disposable fiber flexible templa...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D11/08
CPCE21D11/10E21D11/08
Inventor 张永军赵毅王彪秦少林马福阳武新胜李鹏
Owner 山西煤炭运销集团晋城有限公司
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