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Pre-reinforced composite structure for tunnel longitudinally penetrating through slope and implementation method thereof

A combined structure and pre-reinforcement technology, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., to achieve the effect of scientific prevention and control

Inactive Publication Date: 2012-03-28
NORTHWEST RES INST CO LTD OF C R E C
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention aims to solve the system safety problem of the tunnel crossing the landslide longitudinally, and proposes a pre-reinforced composite structure and implementation method

Method used

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  • Pre-reinforced composite structure for tunnel longitudinally penetrating through slope and implementation method thereof
  • Pre-reinforced composite structure for tunnel longitudinally penetrating through slope and implementation method thereof
  • Pre-reinforced composite structure for tunnel longitudinally penetrating through slope and implementation method thereof

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Embodiment Construction

[0023] The present invention determines the spatial layout form of the pre-reinforced composite structure based on the results of engineering geological survey and the geomechanical pattern recognition of the tunnel-landslide system, and preferentially arranges surface grouting and surface anchor cable frames on the surface of the tunnel-landslide system, and according to the needs In-hole grouting is set inside the tunnel, stress reinforcement is added to the tunnel lining and anchor holes are reserved, and lining anchor cables are set.

[0024] The pre-reinforcement combined structure and implementation method are based on the full study of the "tunnel-landslide system" disaster control theory and key technologies, and an engineering structure and implementation method based on the pre-reinforcement idea. The outstanding feature of the present invention is that on the one hand, it can make full use of grouting to effectively improve the physical and mechanical properties of t...

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Abstract

The invention relates to pre-reinforcement projects for a tunnel-slope system, and provides a pre-reinforced composite structure for a tunnel longitudinally penetrating through slope and an implementation method thereof. The pre-reinforced composite structure comprises surface grouting, a surface anchor cable frame, a tunnel lining, grouting in tunnel and lining anchor cables. The implementation method of the pre-reinforced composite structure comprises the following steps of: based on engineering geology investigation results and geomechanical model recognition of the tunnel-slope system, determining the space layout form of the pre-reinforced composite structure, arranging surface grouting and the surface anchor cable frame firstly on the surface of the tunnel-slope system, arranging grouting in the tunnel as required, arranging bearing steel bars on the tunnel lining and pre-forming anchor cable holes for arranging the lining anchor cables. The implementation of the pre-reinforced composite structure provided by the invention can effectively reinforce the tunnel-slope system, thereby improving the stability of the slope and the self-bearing capacity of the tunnel surrounding rock, and ensuring the safe transport operation of the tunnel.

Description

technical field [0001] The present invention relates to a kind of pre-reinforcement project of tunnel-landslide system, especially in the aspect of pre-reinforcement project of tunnel crossing landslide longitudinally, proposes a kind of pre-reinforcement composite structure and implementation method of tunnel longitudinally crossing landslide, this composite structure can effectively Strengthen the tunnel-landslide system, improve the stability of the landslide and the self-bearing capacity of the tunnel surrounding rock, and ensure the safe operation of the tunnel. Background technique [0002] At present, my country is ushering in a new round of large-scale engineering construction peak period, more and more energy, transportation, mining, water conservancy and national defense tunnel projects are built in the central and western mountainous areas. The terrain and geology in these areas are complex, and roads, railways and hydraulic tunnels often pass through areas with p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00E21D11/00E21D11/10E21D20/00
Inventor 吴红刚马惠民张红利宋响军张俊德
Owner NORTHWEST RES INST CO LTD OF C R E C
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