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Supporting method for section of tunnel fault fracture zone

A technology for broken zones and tunnels, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as collapse and roof fall, and achieve the effects of reducing disturbance, saving construction costs, and shortening the construction period

Active Publication Date: 2020-06-09
CHINA COMM NORTH ROAD & BRIDGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the purpose of the present invention is to provide a support method for the section of the tunnel fault fracture zone to solve the problems that the existing support methods cannot well limit the deformation of the surrounding rock and are prone to safety accidents such as collapse and roof fall

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  • Supporting method for section of tunnel fault fracture zone
  • Supporting method for section of tunnel fault fracture zone

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Embodiment Construction

[0024] Embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art would recognize that the described embodiments can be modified in various ways or combinations thereof without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Also, in this specification, the drawings are not drawn to scale, and like reference numerals denote like parts.

[0025] Combine below Figure 1-Figure 2 This embodiment will be described in detail.

[0026] figure 1 It is a schematic flow chart of the supporting method of the tunnel fault fracture zone section according to the present invention, such as figure 1 As shown, the supporting method of the tunnel fault fracture zone section of the present invention includes: advanced geological prediction, advanced support, mortar anchor, hanging steel mesh, I-b...

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Abstract

The invention discloses a support method for fault fracture zone sections of a tunnel. The support method comprises the steps of conducting advanced geology forecasting, conducting advanced support, conducting mortar anchoring, hanging steel bar meshes, supporting I-shaped steel arch frames, spraying concrete, forming flexible sealing rings outside excavation contour lines of the tunnel, and supporting the fault facture zone sections of the tunnel. The surrounding rock deformation is fully limited, thus collapsing, roof caving and other safety accidents which easily occur during excavation construction of the fault fracture zone sections of the tunnel are prevented, and the construction safety and the engineering quality are ensured; when the fault fracture zone sections of the tunnel areconstructed, an effective support method is adopted, during construction, the disturbance to mountains can be reduced, the natural environment is effectively protected, and conservation of water and soil is facilitated.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a support method for a segment of a tunnel fault fracture zone. Background technique [0002] A fault is a planar failure or a planar rheological zone produced by the rock layer or rock mass inside the earth's crust under the action of stress. The mechanism and identification method of the fault are very complicated, and it is difficult to accurately find out the specific geological conditions of the fault fracture zone in the tunnel during the survey and design process. Therefore, the nature of the fault fracture zone encountered in different tunnel construction , the width of the fault fracture zone, filler, water content and fault activity, and the combined relationship between the tunnel axis and the direction of the fault structure line are all different, so it is difficult to form a systematic and scientific tunnel construction treatment technology in the fault ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D20/02E21D11/38E21F17/18E21F16/02
CPCE21D11/105E21D11/38E21D20/003E21D20/02E21F16/02E21F17/18
Inventor 王超生吉亮殷胜光
Owner CHINA COMM NORTH ROAD & BRIDGE