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Protective tunnel energy absorption composite supporting system

A composite support and tunnel technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve problems such as support damage

Pending Publication Date: 2022-05-13
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide an energy-absorbing composite support system for protective tunnels, so as to at least solve the problems that the shock wave, stress wave and seismic wave of the current explosion cause huge damage to the traditional primary support layer plus anchor shotcrete support.

Method used

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  • Protective tunnel energy absorption composite supporting system

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0028] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation, so they cannot be understood as Limitations on the Inven...

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Abstract

The invention belongs to the technical field of tunnel protection, and particularly relates to a protective tunnel energy absorption composite supporting system. The energy-absorbing composite supporting system comprises anchor rods or anchor cables, an energy-absorbing layer and a steel truss. The anchor rods or the anchor cables are arranged on the inner wall of the tunnel in a driving mode and used for supporting the tunnel. The energy absorption layer is tightly attached to the inner wall of the tunnel, and the energy absorption layer is used for absorbing impact energy transmitted to the energy absorption layer by the tunnel; the steel truss is tightly attached to the energy absorption layer and used for supporting the interior of the tunnel. The energy-absorbing composite supporting system can effectively absorb impact energy under the action of blasting impact and earthquakes, it is guaranteed that an existing energy-absorbing composite supporting system does not have the phenomena of breakage, collapse, instability and the like, it is guaranteed that a tunnel can be effectively supported all the time, and then the safety of the tunnel is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of tunnel protection, and in particular relates to an energy-absorbing composite support system for a protective tunnel. Background technique [0002] In mining engineering, the blasting and crushing of ore and rock begins with the explosion of explosives in the hole, which produces explosive gas. The high-speed expansion of the rock on the wall of the hole produces shock waves, stress waves, and seismic waves. With the transmission of waves, the stress state of the surrounding rock instantly Rapid changes occur, forcing the rock to move rapidly, causing damage to the rock mass and the tunnels connected to the rock mass. In national defense and civil defense projects, explosives explode in the air, near the ground, or in rock mass, and generate shock waves that spread to tunnels. The smaller the distance, the greater the damage caused by shock waves. Explosion impact and prevention of explosion-resistant tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/10E21D11/14
CPCE21D11/006E21D11/10E21D11/107E21D11/14
Inventor 陶志刚明伟毛亚东张未然杨晓杰何满潮
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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