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Tunnel surrounding rock composite lining structure with internal repairing capacity

A composite lining and tunnel technology, applied in tunnel lining, wellbore lining, tunnel, etc., can solve the problems of poor effect and complicated procedures.

Active Publication Date: 2022-07-29
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the measures and procedures for sealing the cracks in the tunnel lining layer are relatively cumbersome, and the effect is not good

Method used

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  • Tunnel surrounding rock composite lining structure with internal repairing capacity
  • Tunnel surrounding rock composite lining structure with internal repairing capacity
  • Tunnel surrounding rock composite lining structure with internal repairing capacity

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Embodiment Construction

[0023] The structure and features of the present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that various modifications can be made to the embodiments disclosed herein, therefore, the embodiments disclosed in the specification should not be regarded as limitations of the present invention, but only as examples of the embodiments, the purpose of which is to make the present invention The features of the invention are obvious.

[0024] like Figure 1-Figure 3 As shown, the tunnel surrounding rock composite lining structure with internal repair capability disclosed by the present invention is composed of a supporting layer 1, a lining layer 2, several groups of H-shaped steel arches 3, and several heating rods 4.

[0025] The supporting layer 1 is close to the surrounding rock 5 on the inner wall of the tunnel, and is made of AC-10 fine-grained asphalt concrete. In the support layer 1, several group...

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Abstract

The invention provides a tunnel surrounding rock composite lining structure with internal repairing capacity. The tunnel surrounding rock composite lining structure is composed of a supporting layer, a lining layer, a plurality of H-shaped steel arch frames and a plurality of heating rods. The supporting layer is tightly attached to surrounding rock of the inner wall of the tunnel and is formed by pouring an AC-10 fine-grain asphalt concrete material. A plurality of groups of H-shaped steel lagging jacks are embedded in the supporting layer, a plurality of heating rods which are connected in parallel are fixed through the H-shaped steel lagging jacks, and the fixing direction of each heating rod is consistent with the axial direction of the tunnel; the lining layer is formed by pouring reinforced concrete on the supporting layer; a plurality of backfill filling holes are formed in the top of the lining layer and penetrate through the lining layer and the supporting layer. The fluidity of the asphalt concrete of the supporting layer is fully utilized, when the tunnel surrounding rock composite lining structure is constructed and overhauled during operation, the asphalt concrete is heated through the heating rods buried in the supporting layer, the composite lining structure and holes and gaps between the composite lining structure and surrounding rock are filled with the asphalt concrete, the process is simple, the quality is controllable, and the effect is remarkable.

Description

technical field [0001] The invention relates to a tunnel surrounding rock lining structure, in particular to a tunnel surrounding rock composite lining structure with internal repair capability. The invention belongs to the technical field of water conservancy and hydropower construction. Background technique [0002] In hydraulic engineering, hydraulic tunnel is a common building structure, that is, some bolts are implanted in the surrounding rock of the inner wall of the tunnel, and then the supporting layer and the lining layer are built in sequence against the surrounding rock of the inner wall of the tunnel to form a composite lining structure. . The supporting layer and lining layer that constitute the traditional tunnel surrounding rock composite lining structure are made of concrete materials. The supporting layer is formed by spraying concrete material on the surrounding rock of the inner wall of the tunnel, and the lining layer is poured on the supporting layer. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/10
CPCE21D11/00E21D11/105Y02E10/20
Inventor 崔炜马宝龙邓检强杜三林朱银邦杨传根邵堃朱新民杨璐菲郑晓阳
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES