Construction method of bridge between stope and dump in open-pit coal mine
A construction method and technology for open-pit coal mines, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of insufficient applicability, complex construction procedures, large equipment cost investment, etc., and achieve convenient disassembly and assembly, short transportation distance, The effect of reducing equipment investment
Active Publication Date: 2021-12-14
王建鑫 +2
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Problems solved by technology
[0009] The purpose of the present invention is to provide a construction method for bridging between the stope and the dump site of an open-pit coal mine, so as to solve the problems of existing bridging equipment and technology in open-pit coal mines, such as large equipment cost investment, insufficient applicability, complex construction procedures, and special personnel to control liquid. control system problem
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] see Figure 1-4 , the present invention provides a technical solution: a bridge construction method between an open-pit coal mine stope and a dump, the method includes two parts: the extension design of the dump and the design of the bridge;
[0033] The extended design of the dump site includes the following steps:
[0034] (1), excavate the goaf area between the dump site 1 and the stope 2, the height of the goaf area is h, and the height of the top ...
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The invention discloses a construction method for building a bridge between a stope and a dump in an open-pit coal mine. The method includes two parts: an extension design of the dump and a bridge design; the design of the extension of the dump includes the following steps: (1), A goaf area is excavated between the dump site and the stope, the height of the goaf area is h, and a rock-soil transport bridge extending to the stope is set in the dump site, and the bridge body between the rock-soil transport bridge and the mining area is A passage is set between the fields, and the width of the passage is b; (2), the step slope angle of the stope is set as α; the natural repose angle between the rock-soil transportation bridge body and the ground is set as β; (3), with For the mining of the steps in the stope, the extension length of the rock and soil transportation bridge body is equal to the mining length of the steps in the stope. By using the combination of rock-soil bridge body and steel truss bridge, the problem of secondary stripping is completely avoided. At the same time, the equipment structure is simple, the transportation distance is short, and the disassembly and assembly are convenient. The bottom of the bridge body is entirely the waste of rock and soil, which can be applied to various complex terrains.
Description
technical field [0001] The invention relates to the technical field of coal mine mining, in particular to a method capable of overcoming obstacles in geological conditions and carrying out fast transportation of coal mines. Background technique [0002] At present, in the commonly used coal mining, the transport bridge construction method has the following problems: [0003] (1) The bridging equipment of transport bridges usually uses road bridges and hydraulic supports to build bridges to replace the original rock and soil, but because the secondary stripping only occurs between the bridge body and the stope, and the bridge body going to the direction of the dump site is still The earth and stone can be discarded in a short distance, so that the bridge body of the prior art has lost the advantage of the rock-soil transport bridge body simultaneously serving as a soil discharge body for mining waste soil in the stope. [0004] (2) Existing open-pit coal mine transportation ...
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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 王建鑫张礼王海鑫杨俊友
Owner 王建鑫