A high ground stress roadway support device and construction method
A roadway support and construction method technology, which is applied in the direction of tunnel, shaft equipment, bolt installation, etc., can solve the problems that it is difficult to ensure the stability of roadway surrounding rock, and can no longer meet the requirements of deep roadway support strength, so as to eliminate Effects of rock burst, maintaining stability, and preventing rock burst accidents
Active Publication Date: 2021-03-30
TAIYUAN UNIV OF TECH
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] The depth of coal mining in my country is getting bigger and bigger. With the increase of burial depth, the stress in the roadway is also increasing. The problem of roadway surrounding rock control and support is becoming more and more prominent. It is no longer able to meet the support strength requirements of deep roadways, especially deep soft rock roadways
In addition, the high ground stress of the deep roadway comes from all directions of the roadway. It is difficult to guarantee the stability of the surrounding rock of the roadway simply by supporting a certain direction of the roadway. Multi-directional joint support of the roadway has become the mainstream of surrounding rock control in deep soft rock roadways.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] Such as figure 1 As shown, an all-round direct support automatic control high ground stress roadway support device, including roadway surrounding rock surface control system, roadway support stress displacement control system and roadway internal horizon system; roadway surrounding rock surface control system includes short Anchor cable 1, anchor cable anchoring agent 13, anchor cable tray 14, and roadway surrounding rock surface concrete layer 2; the roadway surrounding rock surface concrete layer 2 is arranged in a ring, and the outer ring of the roadway surrounding rock surface concrete layer 2 is evenly installed with anchor cable trays in the circumferential direction 14. A short anchor cable 1 protruding outward is installed on the anchor cable tray 14, and the end of the short anchor cable 1 is an anchor cable anchoring agent 13; Hydraulic support base 6, steel pipe 7 and hydraulic control system 8; arc-shaped steel supporting plates 3 are arranged along the inne...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a deep soft rock roadway support device capable of providing all-dimensional direct active support, achieving automatic yielding and adjusting roadway surface displacement anda method. The deep soft rock roadway support device comprises a roadway surrounding rock surface control system, a roadway support stress and displacement control system and a roadway internal horizontal system; and the roadway surrounding rock surface control system involves a short anchor cable, an anchoring agent, supporting plates and a roadway surrounding rock surface concrete layer, the roadway support stress and displacement control system involves steel supporting plates, hydraulic supports, hydraulic support bases, steel pipes and a hydraulic control subsystem, and the roadway internal horizontal system involves horizontal steel plates and horizontal longitudinal beams. The device is used for supporting deep soft rock roadways, broken surrounding rock roadways, island working faceroadways, multiple high ground stress roadways and first mining working face with unknown stress distribution rule and mining roadways, the device is reasonable in design, high in applicability, highin supporting strength, and achieves all-dimensional direct active supporting of roadway sections.
Description
technical field [0001] The invention belongs to the technical field of soft rock roadway support methods, in particular to a high ground stress roadway support device and a construction method. Background technique [0002] The depth of coal mining in my country is getting bigger and bigger. With the increase of burial depth, the stress in the roadway is also increasing. The problem of roadway surrounding rock control and support is becoming more and more prominent. It is no longer able to meet the requirements of the support strength of deep roadways, especially deep soft rock roadways. In addition, the high ground stress of the deep roadway comes from all directions of the roadway. It is difficult to guarantee the stability of the surrounding rock of the roadway simply by supporting a certain direction of the roadway. Multi-directional joint support of the roadway has become the mainstream of the surrounding rock control of the deep soft rock roadway. In order to realize t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21D20/02E21D11/10E21D11/15E21D11/14E21D23/26
CPCE21D11/105E21D11/14E21D11/15E21D11/155E21D20/003E21D20/02E21D23/26
Inventor 王仲伦朱德福霍昱名张佳飞宋选民李昊城蔚瑞刘一扬刘国方曹健洁王琦
Owner TAIYUAN UNIV OF TECH