Ground fissure tunnel asphalt concrete composite lining and supporting method thereof

An asphalt concrete and composite lining technology, which is used in tunnel lining, tunnel, wellbore lining and other directions, can solve the problems that the lining structure cannot be guaranteed not to be damaged or reliable anti-seepage, etc., and achieve the effect of weakening adverse effects, simple structure and convenient construction.

CN101737063AInactive Publication Date: 2010-06-16XIAN UNIV OF TECH
0 Cites 53 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-06-16
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a ground fissure tunnel asphalt concrete composite lining, wherein an initial lining, an asphalt concrete composite lining and an inside lining are sequentially arranged in an influence interval of a ground fissure from a surrounding rock soil body to a tunnel axial center, deformation joints A are arranged on the inside lining at intervals along a tunnel axis, injected holes are reserved at the bottom of the inside lining at both sides of the deformation joints A, and a displacement monitor is installed at the outer side of the asphalt concrete composite lining. The invention also discloses a supporting method of the ground fissure tunnel asphalt concrete composite lining, and an asphalt concrete pouring material is prepared by mixing modified asphalt after hot melting with sand and stones by adopting a stepped excavation and mining construction method; an asphalt mastic material is filled in the deformation joints A to flexibly connect the two adjacent segments of inside linings and carry out waterproof processing and the like for construction joints at the section of the inside lining. The composite lining has simple structure, convenient construction, safety and reliability and is suitable for being used in ground fissure active regions or meizoseismal regions.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of tunnel construction and is used for tunnel structures in strong earthquake regions or ground fissure strata, and in particular relates to an asphalt concrete composite lining for ground fissure tunnels, and also relates to a supporting method for the asphalt concrete composite lining for ground fissure tunnels. Background technique

[0002] In the construction of cavern structures such as tunnels, complex geological conditions are often encountered, such as ground fissures, goafs, karst caves, and sinkholes. In particular, ground fissures formed and developed based on the development of fault structures and induced by excessive exploitation of groundwater seriously affect the stability of the tunnel lining structure. Specifically, after the upper and lower walls on both sides of the ground fissure are shifted, the subsidence displacement of the tunnel lining structure in the strata and the soil on both si...

Examples

Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 , figure 2 , the asphalt concrete composite lining of the ground fissure tunnel of the present invention has a structure that, within the influence interval of the ground fissure 1, an initial lining 4, an asphalt concrete composite lining 5, an inner Lining 6, a deformation joint A2 is arranged at intervals of 5m-15m along the tunnel axis on the inner lining 6, and thickened lining structures are arranged on both sides of each deformation joint A2 to resist the impact of two adjacent sections of the inner lining 6 on the ground fissure 1 The extrusion effect produced by the activity. The deformation joint A2 between two adjacent sections of lining 6 is filled with asphalt mastic material, so as to achieve the effects of sealing and anti-seepage. A reserved grouting hole 8 is provided in the inner lining 6 of the t...