Anchor cable and metal support uniting complementing support device and method

A metal bracket and support device technology, which is applied in vertical shaft equipment, earthwork drilling, wellbore lining, etc., can solve the problems of maintaining the stability of the roadway and the inability of metal brackets to play the supporting advantages, and achieves material saving, complementary defects, and enhanced advantages. Effect

Inactive Publication Date: 2015-12-30
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the anchor cables and metal supports cannot give full play to their respective supporting advantages to maintain the stability of the roadway

Method used

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  • Anchor cable and metal support uniting complementing support device and method
  • Anchor cable and metal support uniting complementing support device and method
  • Anchor cable and metal support uniting complementing support device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 , 2 As shown, the present invention is used for joint complementary support in the process of driving the roadway. The main steps used are: driving the roadway, hanging the metal mesh 10 (install the anchor cable 2 without hanging the net or leave the space for installing the anchor cable tray 3) Yes), set up a U-shaped steel metal bracket 7, drill anchor cables in the middle area of ​​the weak section of the adjacent metal bracket 7, install the anchor cable 2, the tray 3, the anchor cable transfer beam 4, the anchor 5, and give the anchor Apply a pre-tightening force of 100KN~120KN to the cable, install the tie rod body 6a in the tie rod holes on the anchor cable transfer beam 4 and the metal support transfer beam 9, and then add a metal mesh 10 at the location of the anchor cable 2, and then use The double-ended nut 6b is connected with the tie rod body 6a to realize the connection between the metal support transfer beam 9 and the metal support short b...

Embodiment 2

[0051] Such as image 3 As shown, the device of the present invention is used in a roadway where the metal mesh 10 has been tightly filled with the back wall. The implementation method is basically the same as that of the first embodiment. Due to the different application roadways, the installation procedures are changed. The specific procedures are as follows: since the metal mesh 10 and the surrounding rock 1 have been filled with filler 12, the adjacent metal supports 7 Drill a hole in the middle of the weak section. The hole is drilled from the outside of the metal mesh 10 into the surrounding rock 1. Install the anchor cable 2, the tray 3, the anchor cable transfer beam 4, and the anchor 5, and apply pretension to the anchor cable Force 100KN~120KN; connect the tie rod body 6a with the double-ended nut 6b to realize the connection between the anchor cable 2 and the metal support transfer beam 9, the metal support short beam 8 and the metal support 7, and then apply a pre-ti...

Embodiment 3

[0053] As attached Figure 4 As shown, the device of the present invention is used in a roadway that has been racked and sprayed on the surrounding rock surface. The implementation method is basically the same as that of the first embodiment. Due to the different application roadways, the installation procedures are changed. The specific procedures are as follows: the filler 12 has been filled between the metal mesh 10 and the surrounding rock 1, and the outside of the metal mesh 10 has been A shotcrete layer 11 is set, and a hole is drilled in the middle of the weak section of the adjacent metal bracket 7. The hole is drilled from the outside of the shotcrete layer 11 to the surrounding rock 1, and the anchor cable 2, the tray 3, and the anchor cable are installed. Load beam 4, anchor 5, and apply a pre-tightening force of 100KN~120KN to the anchor cable; connect the tie rod body 6a with a double-ended nut 6b to realize the anchor cable 2 and the metal support beam 9, the metal...

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Abstract

The invention relates to an anchor cable and metal support uniting complementing support device for sinking and driving engineering and a method. The support device comprises U-shaped metal supports, and the openings thereof are fastened on a metal net; short beams of the metal supports and load transfer beams of the metal supports are arranged outside the metal supports in sequence; anchor cables are arranged between two adjacent metal supports; one end of each anchor cable is located in the surrounding rock, and the other end of the anchor cable is located outside the surrounding rock and is provided with trays, anchor cable load transfer beams and anchor gears in sequence; diagonal draw bars are connected between the load transfer beams of the metal supports and the load transfer beams of the anchor cables; a V-shaped anchor fixing system is continuously formed on the installation surface of the metal net. In the invention, the anchor cables directly reinforce the surrounding rock through the trays, a tensile component directly reinforces weak parts of the metal supports which independently support the surrounding rock, the supporting area of the anchor cables is remarkably increased by the connection of the tensile component with the supports, and the organic united complementation of the metal supports with the anchor cables is realized. The anchor cable and metal support uniting complementing support device provided by the invention can be used for any roadways of shed supporting, and can be recycled and reused if used for mining roadways.

Description

Technical field [0001] The invention relates to a combined complementary supporting device and method of an anchor cable and a metal bracket for a mine and roadway engineering, which is suitable for joint complementary reinforcement use when the anchor cable and a metal bracket are used for supporting soft rock roadways and difficult-to-support roadways in the mine and roadway engineering. Background technique [0002] Metal support frame support has a wide range of applications, especially for repairing roadways, broken surrounding rock roadways, and roadways with low drilling and drilling rates. However, the entire section of the metal support is basically the same strength, and the bending moments of each support section are different during support. The sections with significantly larger bending moments are the weak sections when the metal bracket is supported. Reinforcement at the maximum bending moment can significantly reduce the maximum bending moment and significantly inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/14
Inventor 陈东东陈稼轩邹军
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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