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A method that can be repeatedly absorbed by the energy -absorbing roadway and its anti -rushing method

A technology of hydraulic support and hydraulic support, applied in mine roof support, earthwork drilling, roof beam supporting mine roof, etc., can solve the problems of large energy absorption limitation, high use cost, and inconvenient replacement.

Active Publication Date: 2020-10-30
LIAONING UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the above structure and method, the present invention solves the technical problems of inconvenient replacement, high cost of use and large limitation of energy absorption in the prior art because the energy absorbing device can only absorb energy once.

Method used

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  • A method that can be repeatedly absorbed by the energy -absorbing roadway and its anti -rushing method
  • A method that can be repeatedly absorbed by the energy -absorbing roadway and its anti -rushing method
  • A method that can be repeatedly absorbed by the energy -absorbing roadway and its anti -rushing method

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Embodiment Construction

[0026] A repeatable energy-absorbing roadway anti-scour hydraulic support, including a box-shaped top beam 2, and a hydraulic prop 5 arranged at the lower part of the box-shaped top beam 2 for support. The structure is: N pieces are arranged inside the box-shaped top beam 2 Reusable energy-absorbing device 1, each reusable energy-absorbing device 1 includes a sliding rod 1-4 that runs through the upper and lower sides of the box-shaped top beam 2; -4, an independent cavity inside the cylinder is formed between the slide rod 1-4, the cavity inside the cylinder is filled with lead body 1-8, the damping block 1-6 is fixed on the outside of the slide rod 1-4, and immersed in the In the lead body 1-8, when the support box-shaped top beam 2 is impacted from above, the damping block 1-6 moves downward under the drive of the sliding rod 1-4, and the lead body 1-8 passes through the damping block 1-6 and The gap between the inner walls of the cylinder produces plastic flow upwards and ...

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Abstract

The invention discloses a repeatable energy absorption roadway anti-impacting hydraulic supporting frame and an anti-impacting method thereof. A repeatable energy absorption device is arranged in a box-type top beam, and the repeatable energy absorption device is composed of a cylinder body containing a lead body and a sliding rod with a damping block. During the supporting protection of a roadway, when the roadway is under the impacting of a top plate, the sliding rod along with the damping block and the lead body move to each other in the cylinder body to rapidly absorb and consume impactingenergy, the impacting on a whole supporting frame structure generated by the top plate is weakened, the destruction of the supporting frame and the failure of the supporting protection of a whole supporting protection system are prevented, and after energy is absorbed through deformation, the top beam can be turned for 180 degrees, assembled and repeatedly used. According to the above structuraldesign and using method, the anti-impacting hydraulic supporting frame which can repeatedly absorb energy is provided, and the technical problems of inconvenient replacement, high using cost and largeenergy absorption limitation due to the fact that an energy absorbing device can only absorb energy for once are solved.

Description

technical field [0001] The invention belongs to the technical field of coal mine support and the field of rock burst disaster prevention and control, and in particular relates to a roadway hydraulic support with repeatable energy-absorbing roof beam and an anti-scour method thereof. Background technique [0002] With the increase of coal mine energy demand and the continuous increase of mining intensity in our country, the excavation depth is getting deeper and deeper, and there are more and more mines thousands of meters deep. In recent years, most mines have entered the deep mining stage. The mining of deep mines has brought severe challenges to the mechanical properties of deep surrounding rocks and existing supports. The frequency and intensity of rock bursts have increased, causing a large number of roadway support damages, collapses, and casualties, seriously affecting coal mine safety. Production. Therefore, the problem of backing roadway support in deep working fac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D23/04E21D23/16E21D17/10
CPCE21D17/003E21D17/10E21D23/04E21D23/16
Inventor 肖永惠陈建强潘一山刘昆轮李国臻马箫
Owner LIAONING UNIVERSITY
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