Supporting mechanism for underground weak engineering geological roadway and using method thereof

A technology of engineering geology and support mechanism, which is applied in the direction of earthwork drilling, pillars/brackets, temporary shields, etc. It can solve the problems of poor support effect, inability to contact and fit, and inability to act as active support, etc., to achieve simple structure , stable structure, and the effect of solving passive support defects

Pending Publication Date: 2021-11-26
铜陵鑫铜建设监理有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steel shed is passive support, the steel shed and the rock wall cannot be in contact with each other, and cannot play the role of active support, and the support effect is poor

Method used

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  • Supporting mechanism for underground weak engineering geological roadway and using method thereof
  • Supporting mechanism for underground weak engineering geological roadway and using method thereof
  • Supporting mechanism for underground weak engineering geological roadway and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A support mechanism for underground weak engineering geological roadway, such as Figure 1-Figure 3As shown, it includes a plurality of support device units 1 and a connector for connecting the plurality of support device units 1 in series.

[0041] The supporting device unit 1 includes shaped steel pillars 101 symmetrically arranged on the left and right sides and an arc-shaped support 104 arranged above the shaped steel pillars 101. The shaped steel pillars 101 include a cylinder, a tenon 102 arranged at the bottom end of the cylinder, and a tenon 102 set on the cylinder. The cavity 103 on the side of the middle section and the boss 105 arranged on the top of the cylinder, and the boss 105 is provided with a groove 106, and the direction of the groove 106 is consistent with the direction in which the roadway 5 penetrates.

[0042] The arc bracket 104 includes a first arc frame 107 above and a second arc frame 108 below, the arc openings of the first arc frame 107 and ...

Embodiment approach

[0044] (I) if Figure 4 As shown, the above-mentioned block 109 is an "I"-shaped structure, the upper plate body of this type block 109 overlaps with the top of the boss 105, and the middle vertical plate and the lower plate body of the block 109 are mated and inserted into the groove 106. , a first positioning hole (not shown) is vertically opened in the upper plate body of the block 109, the boss 105 and the lower plate body of the block 109, and the first positioning pin 110 is arranged in the positioning hole, and the first positioning pin 110 is arranged in the positioning hole. The pin 110 is located at a front position or / and a rear position of the second arc-shaped frame 108 .

[0045] (Ⅱ) If Figure 5 As shown, the above-mentioned type block 109 is a "匸"-shaped structure, the upper plate body of this type block 109 is overlapped with the top of the boss 105, and the middle vertical plate and the lower plate body of the type block 109 are mated and inserted into the g...

Embodiment 2

[0051] The arc-shaped support 104 in the above-mentioned embodiment 1 is aimed at the geological roadway of the semi-circular arch type, and for roadways with other cross-sectional shapes, such as rectangular or trapezoidal roadways, the shape of the support is not arc-shaped, and can be changed and optimized into a corresponding shape. bracket structure.

[0052] Similarly, the shape of the support plate is not limited to arc shape, which is mainly based on the top structure of the roadway. When the cross section of the roadway is rectangular or trapezoidal, the shape of the support plate can also be straight strip shape, cross shape or other.

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PUM

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Abstract

The invention discloses a supporting mechanism for an underground weak engineering geological roadway and a using method thereof, and relates to the technical field of geological roadway supporting. The supporting mechanism comprises a plurality of supporting device units and a connector used for connecting the plurality of supporting device units into a whole in series; each supporting device unit comprises a profile steel supporting column and an arc-shaped support, wherein the profile steel supporting column comprises a column body, a tenon, a cavity formed in the column body and a boss arranged at the top end of the column body, and a groove is formed in the boss; the arc-shaped support comprises a first arc-shaped framework and a second arc-shaped framework, arc-shaped openings of the first arc-shaped framework and the second arc-shaped framework are vertically downward, the two ends of the first arc-shaped framework and the two ends of the second arc-shaped framework are provided with profile blocks, and lap joint of the arc-shaped support and the profile steel supporting column is achieved through matched inserting connection of the profile blocks and the grooves; and a plurality of supporting devices are arranged in the radial direction of the arc-shaped support. The supporting mechanism is simple in structure, easy and convenient to disassemble, assemble, operate and use, stable in structure, capable of achieving the active supporting effect, good in supporting effect, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of geological roadway support, in particular to a supporting mechanism for an underground weak engineering geological roadway and a use method thereof. Background technique [0002] With the continuous increase of mining depth and strength, the roadway pressure continues to increase, the deformation of the roadway is difficult to control, the difficulty of roadway support continues to increase, and the speed of roadway support is required to continue to increase. At present, mine roadways mainly adopt two kinds of support methods: one is active support with prestressed anchor cables; the other is passive support with steel sheds. Prestressed anchor cable support is an active support method, which can effectively apply prestress to the surrounding rock, inhibit the opening of the original cracks in the surrounding rock, maintain the integrity of the surrounding rock's own structure, and maintain the self-supp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D15/02E21D15/50E21D19/04
Inventor 钱叶华冯胜利
Owner 铜陵鑫铜建设监理有限责任公司
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