Resistance-increasing energy-absorbing anti-impact device for rock burst roadway anchor rod support

By designing a resistance-increasing energy-absorbing anti-impact device in the tunnel support, combining hydraulic buffering and damping technology, the problem of insufficient energy absorption capacity of traditional support methods in impact ground pressure is solved, and efficient energy absorption and automatic tunnels are achieved Reset significantly improves the safety and stability of the tunnel.

CN119102711AInactive Publication Date: 2024-12-10LIAONING UNIVERSITY
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Patent Information

Application Number
CN202411174359.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2024-12-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The traditional tunnel support method lacks sufficient energy absorption capacity and adaptability when facing volatile impact ground pressure, and cannot effectively protect the tunnel structure from damage, resulting in the tunnel being easily deformed, cracked or even collapsed under the impact ground pressure. .

Method used

A resistance-increasing energy-absorbing anti-impact device is designed, combining hydraulic buffering and damping technology, internal and external energy-absorbing spring system, automatic return mechanism and multi-directional support and adjustment capabilities to form a comprehensive and efficient impact through a multi-stage energy absorption mechanism. Ground pressure protection solution.

Benefits of technology

It effectively absorbs and distributes impact energy, improves the safety and stability of the tunnel under impact ground pressure environment, has adaptability and automatic reset functions, and significantly improves the safety and support efficiency of the tunnel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The resistance-increasing energy-absorbing anti-impact device comprises a lower connecting plate, an anti-impact telescopic rod is fixedly connected to the center of the upper end of the lower connecting plate, the upper end of the anti-impact telescopic rod is sleeved with a damping energy-absorbing sleeve, and the anti-impact telescopic rod is slidably connected to the interior of the center of the lower end of the damping energy-absorbing sleeve; the external part of the upper end of the damping energy-absorbing sleeve is fixedly connected with an anchor rod tray, effective buffering and energy absorption of rock burst are realized through a built-in hydraulic system by utilizing the flow characteristic of hydraulic oil and the sliding of the damping sliding head, and meanwhile, the sliding position of the damping sliding head is limited through the buffering limiting check ring, so that the stable damping effect is ensured; the inner energy absorption spring is arranged in the buffer hydraulic rod and matched with the buffer sliding head and the buffer sliding rod to absorb impact energy transmitted by hydraulic oil, and internal energy absorption is achieved. The outer energy absorption spring is arranged between the supporting sliding sleeve and the supporting sliding rod and absorbs energy of external rock burst through compression, and external energy absorption is achieved.
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Citation Information

Cited By

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