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Open-off cut brush expansion installation parallel construction method for reinforcing large-span top plate based on stack type support

A technology of stacking brackets and parallel construction, which is applied in the direction of earth drilling, mining equipment, tunnels, etc., to achieve the effects of reducing workload, reducing labor intensity of employees, and saving costs

Pending Publication Date: 2021-10-08
HUAIBEI MINING IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in order to improve labor efficiency and save time and cost, and improve the size and installation process level of the current fully mechanized mining face, the cutting and brushing technology that replaces the temporary support of single pillars needs to be proposed urgently

Method used

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  • Open-off cut brush expansion installation parallel construction method for reinforcing large-span top plate based on stack type support

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Embodiment Construction

[0023] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0024] Such as figure 1 As shown, the parallel construction method based on stacked support 1 to reinforce the large-span roof with brush expansion and installation of the cutout brush of the present invention is characterized in that: after the completion of the construction of the guide tunnel cutout 4, before the excavation brush large cutout 5, first start from the machine lane Begin to brush the large side along the guide tunnel cutout 4 and install the stacking bracket 1 to support the roof in advance, use the stacking bracket 1 to reinforce the top plate, and at the same time reduce the span of the large-span cutout after brushing, and then use the stacking bracket 1 to install the same The direction is along the stacking support 1 to excavate the brush big cutout 5, and the brush big cutout 5 is excavated and installed in parallel with the advance st...

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Abstract

The invention discloses an open-off cut brush expansion installation parallel construction method for reinforcing a large-span top plate based on a stack type support, and belongs to the technical field of coal mine electromechanical equipment installation. The open-off cut brush expansion installation parallel construction method comprises the steps that after pilot tunnel open-off cut construction is completed and before a large open-off cut is tunneled and brushed, the stack type support is installed in advance from a machine roadway along the large side of the pilot tunnel open-off cut to support a top plate, the top plate is reinforced through the stack type support, and meanwhile, span reduction is carried out on the large-span open-off cut after brushing is carried out; then the large open-off cut is tunneled and brushed along the stack type support in the same direction as the installation direction of the stack type support, and parallel operation of brushing open-off cut tunneling and advanced stack type support installation is carried out till an air way; and finally, the stack type supporting support in a brushing open-off cut construction completion area is dismantled, and a fully-mechanized coal mining hydraulic support is installed. According to the open-off cut brush expansion installation parallel construction method for reinforcing a large-span top plate based on the stack type support, the large-span open-off cut top plate is supported by the stack type support, the safety of the large-span open-off cut top plate is improved, open-off cut brushing expansion and installation operation are synchronously carried out, and the open-off cut forming efficiency is improved.

Description

technical field [0001] The invention relates to a parallel construction method for eye-cutting and brush-expanding installation, especially a parallel construction method for cutting-out and brush-expanding installation based on stacked brackets for reinforcing large-span roofs, which is suitable for coal mine roof support and equipment installation. Background technique [0002] Compared with the roadway, the cut eye has a large cross-sectional span, which is easy to cause problems such as roof collapse, left and right side extrusion, and bottom plate bulging. As a result, the cut eye needs to be repaired many times during the service period, which affects the normal production of the coal mine and the maintenance of underground equipment. Normal work and safety of staff. At present, the construction technology of the cutout in the fully mechanized coal mining face is generally the construction of the secondary tunneling method, that is, the first excavation of the guideway...

Claims

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Application Information

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IPC IPC(8): E21D9/01E21D9/12
CPCE21D9/01E21D9/12
Inventor 聂政张农肖大伦阚甲广张浩王金张波黄北海王朋崔广振
Owner HUAIBEI MINING IND
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