Supporting device for roof advance support in process of tunneling in caving loose rock mass and application of supporting device

A technology of advanced support and support device, which is applied to support the roof beam of the mine roof, mining equipment, earth square drilling and mining, etc. It can solve problems such as hidden safety hazards, ineffective support methods, support failures, etc., and achieve reliable support , Easy to operate, and the effect of easy operation for workers

Inactive Publication Date: 2014-07-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when roadways are formed in caving loose rock mass, the roof caving area is too large to rely on the roof or floor to form a supporting effect, especially the floor. Although the subsid

Method used

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  • Supporting device for roof advance support in process of tunneling in caving loose rock mass and application of supporting device
  • Supporting device for roof advance support in process of tunneling in caving loose rock mass and application of supporting device

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] see figure 1 , four round steels 1 form a rectangular structure with two upper floors and two lower floors, an upper steel plate 2 is welded between the ends of the two upper round steels 1, and the ends of the two lower round steels A lower steel plate 4 is welded between them, and a steel pipe 3 is fixedly connected between the upper steel plate 2 and the lower steel plate 4 to enhance the vertical rigidity.

[0022] Preferably, steel pipes 3 are used to connect the upper steel plate 2 and the lower steel plate 4 by welding.

[0023] Preferably, the thickness of the upper steel plate 2 and the lower steel plate 4 is 20mm, and the length×width is 200mm×500mm.

[0024] Preferably, the specification of the steel pipe 3 is Φ80mm in diameter, 10mm in wall thickness, and 250mm in length.

[0025] Preferably, the round steel 1 has a diamet...

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Abstract

The invention discloses a supporting device for a roof advance support in the process of tunneling in caving loose rock mass and application of the supporting device. The device is composed of round tubes, steel plates and a steel tube. The four round tubes are arrayed in a rectangular mode and divided into two sets of round tubes, the steel plates are welded to the ends of both the sets of round tubes, and the steel plates are connected through the steel tube in a supported mode. In the construction process, four horizontal holes are drilled firstly in the two walls of a tunnel according to the distance and the length of the round tubes, the round tubes are inserted into the horizontal holes, the round tubes are exposed out of the lateral walls of the tunnel about 0.2 m, then the steel plates are welded to the exposed parts of the round tubes respectively, and the steel tube is welded between the upper layer steel plate and the lower layer steel plate. In the using process, I-steel or other materials are welded to the upper layer steel plate of the device, so that a roof beam used as the roof advance support is formed. The supporting device is suitable for driving in mine unstable rock mass or tunneling in the loose rock mass after a gob collapse, the roof support problem of the caving loose rock mass is solved, and the supporting device has the advantages of being simple in structure, reliable in performance, convenient for a worker to operate and the like.

Description

technical field [0001] The present invention relates to a support device for roof advance support when a roadway is formed in a caving loose rock body, in particular to a roof support that adopts an advanced inserting rod or an inserting plate method when a roadway is formed in a caving loose rock body in an empty area Supporting device for shed beams. The invention also relates to the use of this. Background technique [0002] The roadway forming medium in the caving body of the gob is generally loose rock mass with moving characteristics, and the surrounding rock cannot exert its self-supporting capacity. For the roof support method commonly used in roadway support, especially the support of the roof support of the advanced insertion rod or the insertion method, the support is based on the stability of the bottom plate to withstand the pressure transmitted by the roof, or the anchor rod is used to hang the roof at the stable place. Hanging support device. However, when ...

Claims

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Application Information

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IPC IPC(8): E21D17/00
Inventor 赵国彦李夕兵徐欣刘润田李正魁彭康唐志祥
Owner CENT SOUTH UNIV
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