Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Supporting pressure adjustment roadway surrounding rock support method

A technology of surrounding rock support and roadway, applied in the field of surrounding rock support of underground engineering, can solve the problems of non-adjustment, constant working resistance, failure to achieve the expected support-surrounding rock integrated support effect, etc.

Active Publication Date: 2014-08-27
盐城项果科技有限公司
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the support of engineering structures such as large deformation underground engineering roadways and tunnels, there are mainly three forms of passive support, active support and combined support at home and abroad. In order to better support the surrounding rock of soft rock roadways and give full play to the surrounding rock The rock self-stabilization ability is the basic support idea in this field. The support system can properly release the deformation energy of the surrounding rock to form an integrated support system of “relief and support” and give full play to the self-stabilization ability of the surrounding rock. At the same time, the support system can properly Release energy and provide strong support at the same time. However, the yield support system in the existing technology either cannot achieve a constant working resistance well, or the constant working resistance depends on the structure of the support system itself, and cannot be based on the roadway Adjusting the actual surrounding rock geological conditions often fails to achieve the expected support-surrounding rock integrated support effect

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Supporting pressure adjustment roadway surrounding rock support method
  • Supporting pressure adjustment roadway surrounding rock support method
  • Supporting pressure adjustment roadway surrounding rock support method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with specific examples, but the scope of protection required by the present invention is not limited to the scope described in the specific examples.

[0025] A method for supporting the surrounding rock of a roadway by adjusting the support pressure, using an underground engineering well roadway pressure support system to support the roadway surrounding rock, the support system includes a pressure hydraulic prop 4 and a pressure bolt 2 , mesh 3, steel beam 5, pressure sensor 13, controller 14, lay mesh 3 on the roadway 1 surrounding rock, and carry out roadway surrounding rock support with pressure bolt 2, set up steel beam 5, pass pressure hydraulic pressure Column 4 is used for roof support; in the process of surrounding rock support, the pressure hydraulic prop 4 and the pressure anchor 2 are used to support the deformation of the surrounding rock at the initial stage, so as to fully exert the self-...

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

No PUM Login to View More

Abstract

The invention relates to the field of underground construction surrounding rock support and particularly to a supporting pressure adjustment roadway surrounding rock support method. The supporting pressure adjustment roadway surrounding rock support method utilizes an underground construction roadway yield support system. The underground construction roadway yield support system comprises yield hydraulic pillars, yield anchor bolts, meshes, a steel beam, a pressure sensor and a controller. The meshes are laid on roadway surrounding rock, and the roadway surrounding rock is supported through the yield bolts; the steel beam is erected and performs roof support through the yield hydraulic pillars; every yield anchor bolt comprises an anchoring head, one or more yield connectors, an elastic cushion block, a W-shaped steel strip, a base plate, a yield device and a handle nut, wherein the yield connector is used for connecting a left anchor bolt body and a right anchor bolt body and is a cavity, the two anchor bolt bodies are arranged inside the end portions of the cavity and provided with piston stoppers, and springs are arranged between the piston stoppers and the end portions of the connector cavity. Therefore, the supporting pressure adjustment roadway surrounding rock support method can achieve constant yield support according to actual geological surrounding rock stress situations, adjust the status of a support system to form a good yield-support support system and accordingly obtain optimized constant yield support.

Description

technical field [0001] The invention relates to the field of surrounding rock support for underground engineering, in particular to a method for supporting roadway surrounding rock by adjusting support pressure. Background technique [0002] In underground engineering fields such as mines and tunnels, it is essential to support the roadway surrounding rock. In the mining field, as the mining depth increases, the ground stress increases significantly, and the stress of the surrounding rock of the roadway increases, and in the deep roadway, the surrounding rock geology presents soft rock, the deformation of the soft rock roadway is large, and the roadway support is difficult. [0003] For the support of engineering structures such as large deformation underground engineering roadways and tunnels, there are mainly three forms of passive support, active support and combined support at home and abroad. In order to better support the surrounding rock of soft rock roadways and ...

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
no application Login to View More
IPC IPC(8): E21D11/00E21D21/00E21D15/44
CPCE21D11/006E21D15/44E21D21/0046
Inventor 施鑫镛
Owner 盐城项果科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products