An anti-crack protective support structure for suspended dangerous rock mass

A technology of supporting structure and dangerous rock mass, which is applied in infrastructure engineering, construction, excavation, etc., and can solve problems such as affecting traffic, limited treatment effect, and collapse of steep slopes.

Active Publication Date: 2022-04-01
北京岩土工程勘察院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regarding the above-mentioned related technologies, the inventor believes that if the slope cutting scheme is adopted, it is easy to cause a large-scale collapse of the steep slope, and the foot of the slope is an important mountain road, and the slope cutting treatment will cause the road to be closed, which will affect the traffic for a long time
Active and passive protection nets have a good effect on the control of small boulders and dangerous rock groups, but have limited effects on large-scale dangerous rock masses.

Method used

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  • An anti-crack protective support structure for suspended dangerous rock mass
  • An anti-crack protective support structure for suspended dangerous rock mass
  • An anti-crack protective support structure for suspended dangerous rock mass

Examples

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Effect test

Embodiment 1

[0041] The embodiment of the present application discloses an anti-crack protective support structure for suspended dangerous rock mass. refer to figure 1 An anti-crack protective support structure for suspended dangerous rock mass includes a parent rock 1 and a dangerous rock mass 2 protruding from the parent rock 1 and in a suspended state. A prestressed anchor cable 3 is arranged between the parent rock 1 and the dangerous rock mass 2 , and the prestressed anchor cable 3 is respectively embedded in the parent rock 1 and the dangerous rock mass 2 . The dangerous rock mass 2 is pulled by the prestressed anchor cable 3, and mutual tension prestress is applied between the parent rock 1 and the dangerous rock mass 2, thereby reducing the cracking of the dangerous rock mass 2 and the parent rock 1 .

[0042] refer to figure 1 , figure 2 A plurality of support frames 4 are arranged below the dangerous rock mass 2, and the tops of the support frames 4 abut against the bottom su...

Embodiment 2

[0048] The embodiment of this application discloses an anti-cracking protective support structure for suspended dangerous rock mass. Figure 5 , Figure 6 The difference between the second embodiment and the first embodiment is that: the bottom end of the support column 42 is connected to the top end surface of the base 41 in rotation. A horizontal fixed disk 6 is fixed on the top end surface of the base 41 , and a plurality of insertion holes 61 are opened on the surface of the fixed disk 6 . The insertion holes 61 are arranged in a circular array around the axis of the support column 42 .

[0049] A horizontal rotating disk 7 is fixed at the bottom of the support column 42 , and the bottom surface of the rotating disk 7 is attached to the top end surface of the fixed disk 6 . A plurality of through holes 71 are opened on the disc surface of the rotating disc 7 , and the number of the through holes 71 is the same as the number of the insertion holes 61 . The through holes 7...

Embodiment 3

[0054] The embodiment of this application discloses an anti-cracking protective support structure for suspended dangerous rock mass. Figure 7 , Figure 8 The difference between the third embodiment and the first embodiment is that the support column 42 includes a plurality of rod joints 422 connected end to end, and the opposite ends of the adjacent rod joints 422 are respectively provided with flanges 423, and the flanges 423 and the rod joints 422 between welding fixed. The flanges 423 at the opposite ends of the adjacent rod sections 422 fit together and are fixed together by bolts.

[0055] The implementation principle of an anti-cracking protective support structure for suspended dangerous rock mass in the embodiment of the present application is: when carrying the support column 42, the support column 42 can be decomposed into a plurality of rod joints 422, so that it is convenient for the staff to carry it. When the pole sections 422 are transported to the constructi...

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PUM

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Abstract

This application relates to an anti-cracking protective support structure for suspended dangerous rock mass, which belongs to the technical field of geological disaster prevention, including parent rock and protruding parent rock and dangerous rock mass in a suspended state, the gap between the parent rock and the dangerous rock mass Reinforced together by prestressed anchor cables, a plurality of supporting devices for supporting the dangerous rock mass are arranged under the dangerous rock mass, and a protective net is set on the side of the dangerous rock mass facing away from the parent rock, The bottom of the protective net is connected with the support device, the top of the protective net is fixed on the top surface of the parent rock through anchor rods, and the protective net fully covers the dangerous rock mass. The application has the effect of controlling the dangerous rock mass protruding from the parent body.

Description

technical field [0001] The application relates to the technical field of prevention and control of geological disasters, in particular to an anti-crack protective support structure for suspended dangerous rock masses. Background technique [0002] Dangerous rock mass is a potential collapse body, which is prone to topple, fall or slide under the action of its own weight, heavy rain, earthquake, etc., thereby causing damage to surrounding villages and equipment. Therefore, it is necessary to treat the dangerous rock mass in advance to achieve Plan ahead and prevent problems before they happen. [0003] The current management mode of dangerous rock mass mainly adopts slope cutting and sets up active and passive nets for protection. For mountainous areas and places with narrow mountain roads, huge dangerous rock masses protruding from the parent rock are very common. Huge dangerous rock masses protruding from the parent rock are easy to separate from the parent body due to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/20
CPCE02D17/20E02D17/202
Inventor 张强贾国凯陈新华甘玉叶苗长张相财李小军许烁冯康楠胡晓琪段雅菲张利敏周元星马博崔跃琳张智博钟金金
Owner 北京岩土工程勘察院有限公司
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