A wave-absorbing and energy-dissipating support method for regulating the rockburst breeding process
A technology of rockburst and bolt, which is applied in the field of wave-absorbing and energy-consuming support for regulating the breeding process of rockburst, and can solve the problems of inability to accumulate energy in rock, low anti-rockburst vibration and disturbance performance, and low support reliability , to achieve the effect of inhibiting the cracking development of rock mass, improving the structural strength of rock mass, and reducing the degree of rock mass fragmentation
Active Publication Date: 2018-05-01
NORTHEASTERN UNIV LIAONING
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The present invention provides a wave-absorbing and energy-consuming support method for regulating and controlling the rockburst breeding process, which solves the problems in the prior art that the accumulated energy of the rock cannot be actively dissipated, the support reliability is not high, and the anti-rockburst vibration and disturbance performance is low. question
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
[0033] The embodiments of the present application provide a wave-absorbing and energy-consuming support method for regulating the rockburst breeding process, so as to solve the technical problems in the prior art of poor cracking resistance, low support reliability, and low performance against rockburst vibration and disturbance Reached the technical effect of absorbing and consuming energy from the rockburst breeding stage and suppressing and preventing rockburst.
[0034] In order to solve the above technical problems, the general idea of the technical solution provided by the embodiment of the present application is as follows:
[0035] A wave-absorbing and energy-consuming support method for regulating the breeding process of rockbursts, comprising the following steps:
[0036] Determine rockburst-prone areas in the roadway to be supported, and drill stress relief holes;
[0037] A wave-absorbing energy-dissipating anchor is used for support in the stress relief hole; ...
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 belongs to the field of tunnel support technology and discloses a wave-absorbing and energy-consuming support method for regulating the rockburst incubation process, which includes the following steps: determining the rockburst prone area in the tunnel to be supported, and drilling stress relief holes; Wave-absorbing energy-consuming anchors are used for support in the stress relief holes; a flexible diamond net is set on the tunnel wall, and the wave-absorbing energy-consuming anchors are fastened together with the wave-absorbing energy-consuming anchor trays and Pressed on the tunnel wall; wherein, the wave-absorbing energy-dissipating anchor includes: anchor head, wave-absorbing damper, energy-dissipating damper, rod body, tray and fasteners; wave-absorbing damper and energy-dissipating damper connection Between the anchor head and the rod body; when the rod body moves axially relative to the anchor head, the wave absorbing damper acts to resist the movement of the rod body and perform work to restore the anchor rod to its initial state. The invention absorbs and consumes the energy stored in the rock mass from the rock burst incubation stage to improve the reliability of the support system.
Description
technical field [0001] The invention relates to the technical field of roadway support, in particular to a wave-absorbing and energy-consuming support method for regulating and controlling the incubation process of rockbursts. Background technique [0002] The conventional support method adopts resin anchor rods on the roof, and uses conventional anchor rods and anchor cables on the two sides to form rigid support together with welded mesh. However, this rigid support method will often fail under dynamic load conditions, and eventually rockburst will cause impact damage to the chamber and support system. [0003] The rockburst breeding process refers to the process of rock mass cracking induced by high stress or deep rock mass excavation and unloading to the ejection of rock blocks (rock slices). During the process, the rock mass experienced the process of new crack initiation-expansion-penetration (or closure), the process of primary crack expansion-penetration-opening (or...
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): E21D11/00E21D11/10E21D21/00E21D20/02C04B28/04
CPCC04B28/04E21D11/006E21D11/107E21D20/021E21D21/0046C04B24/307
Inventor 冯夏庭赵曰茂王兆丰刘继光
Owner NORTHEASTERN UNIV LIAONING