Scalable steel pipe concrete support

A technology of steel tube concrete and concrete, which is applied in pillars/brackets, earth square drilling, mining equipment, etc. It can solve the problems of U-shaped steel bracket bearing capacity reduction, affecting mine production and safety, uneven pressure distribution, etc., and achieve reasonable force , high support efficiency and good stability

Inactive Publication Date: 2010-10-13
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

[0006] In some soft rock roadways with complex geological conditions, the pressure often presents obvious uneven distribution characteristics. Due to some problems in the structure of the U-shaped steel bracket itself, the bearing capacity of the U-shaped steel bracket is greatly reduced and the damage is serious, which not only causes a large number of people, Waste of money and materials, and affect the production and safety of the mine

Method used

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  • Scalable steel pipe concrete support
  • Scalable steel pipe concrete support
  • Scalable steel pipe concrete support

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Embodiment Construction

[0025] A preferred embodiment of the present invention is that it includes a multi-section hollow tube body, the multi-section hollow tube body is connected to each other to form a ring structure, and the interior of the hollow tube body is filled with a coagulant.

[0026] Such as figure 1 As shown, the multi-section hollow pipe body is a steel pipe 1 with the same arc shape, the multi-section steel pipes 1 are connected to each other to form a circular structure, and the inside of the steel pipe is filled with concrete.

[0027] The hollow tube body can also be made of other rigid materials. The cross section of the hollow tube body is preferably circular, and can also be in other shapes as required, such as ellipse, square, etc.

[0028] The multi-section hollow pipes are preferably connected to each other to form a closed ring structure. The arcs of the multi-section hollow pipes are the same, and they can also be connected into other ring structures, such as ellipse, obla...

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Abstract

The present invention discloses a kind of supporting equipment. It includes several steel pipes, the adjacent two steel pipes are mutually connected by means of connecting pipe, the interior of every steel pipe is filled up with concrete, and the butt-jointed position of two adjacent steel pipes is equipped with wood pad or other flexible pad, in the centre of said flexible pad is cut a through hole through which the concrete can be flowed on the side portion pipe wall of said supporting equipment a grouting hole is cut, and on the upper portion pipe wall of said supporting equipment an air exhaust hole is cut. Said supporting equipment can be used for roadway support.

Description

technical field [0001] The invention relates to a support device, in particular to a retractable steel pipe concrete support for supporting a mine roadway. Background technique [0002] With the extraction of coal resources, the burial depth of mining coal seams must increase, and the expansion of mining scale and the improvement of mechanization level have accelerated the development of production mines to the deep. However, due to the continuous increase of mining depth, the geological environment continues to deteriorate, the ground stress increases, the number of broken rock masses increases, the amount of water leakage increases, and the ground temperature rises, resulting in a series of problems such as the deterioration of the operating environment, difficulties in roadway maintenance, and more geological disasters. Under the condition of deep well mining, the appearance and frequency of geological disaster accidents such as roadway deformation and rockburst in the mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D15/00
Inventor 高延法牛学良王波
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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