CN210888956U

CN210888956U - Shield constructs section of jurisdiction protective structure

Info

Publication number: CN210888956U
Application number: CN201920924002.8U
Authority: CN
Inventors: 吴强; 侯军红; 马志富; 王丽庆; 曾青; 翁东郁; 吕宝伟; 王旭; 苏哿; 张弛; 伊兴芳; 贾辉; 霍飞; 吴迪
Original assignee: China Railway Design Corp
Current assignee: China Railway Design Corp
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-06-30
Anticipated expiration: 2029-06-19

Abstract

The utility model discloses a shield constructs section of jurisdiction protective structure, including the shield structure section of jurisdiction, be provided with the guard plate on the shield structure section of jurisdiction surface, the shield structure section of jurisdiction still is provided with outward and carries out fixed frame all around to the guard plate, the unilateral of fixed frame is for bending the form, fixed frame is fixed with shield structure section of jurisdiction side. The fixed frame comprises an upper buckling part and a lower buckling part, and an included angle between the upper buckling part and the lower buckling part is a non-obtuse angle. The utility model provides a set up the guard plate at shield structure section of jurisdiction upper surface, form the protective layer, avoid the shield structure section of jurisdiction to receive the erosion, make the shield structure section of jurisdiction keep good wholeness and stability, when the section of jurisdiction fracture, the self-adhesive layer on the guard plate can fill into the crack, maintains good waterproof performance, has improved the life of shield structure section of jurisdiction, and then has improved the security of shield tunnel. The guard plate carries out dual fixed through self-adhesion, fixed frame, makes the guard plate continuously provide the protection to the shield structure section of jurisdiction steadily, prevents that the shield structure section of jurisdiction from receiving the erosion or taking place the dislocation.

Description

Shield constructs section of jurisdiction protective structure

Technical Field

The utility model belongs to the protective structure field, concretely relates to shield constructs section of jurisdiction protective structure.

Background

The shield segment is a main assembly component for shield construction, is the innermost barrier of the tunnel and plays a role in resisting soil layer pressure, underground water pressure and some special loads, the shield segment is a permanent lining structure of the tunnel by a shield method, and the quality of the shield segment is directly related to the overall quality and safety of the tunnel, so that the waterproof performance and the durability of the tunnel are influenced. In the shield tunnel construction process, the phenomena of erosion, damage and cracking of shield segments in different degrees can be caused due to the combined action of various reasons, so that the quality and the service life of a tunnel are influenced, and at present, no measures for protecting the shield segments are taken.

Disclosure of Invention

The utility model discloses a solve the problem that prior art exists and propose, its purpose provides a shield constructs section of jurisdiction protective structure.

The technical scheme of the utility model is that: the utility model provides a shield constructs section of jurisdiction protective structure, includes the shield and constructs the section of jurisdiction, is provided with the guard plate on the shield section of jurisdiction surface, the shield still is provided with outward and carries out fixed frame all around to the guard plate in the section of jurisdiction, the unilateral of fixed frame is for bending the form, fixed frame is fixed with shield section of jurisdiction side.

Preferably, the fixed frame comprises an upper buckling part and a lower buckling part, and an included angle between the upper buckling part and the lower buckling part is a non-obtuse angle.

Preferably, the guard plate includes enhancement layer and rubber layer, be provided with No. I self-adhesive layer between enhancement layer and the shield structure section of jurisdiction surface, be provided with No. II self-adhesive layers between enhancement layer, the rubber layer.

Preferably, the outer contour of the fixed frame is arc-shaped and is matched with the shield segment.

Preferably, last buckling parts, lower buckling parts are the right angle form, the inboard barb that forms of buckling parts down, shield constructs section of jurisdiction side and forms the hook groove, barb, hook groove interlock each other to make last buckling parts compress tightly around the guard plate.

Preferably, go up buckling parts, lower buckling parts are the acute angle form, the inboard arch that forms of buckling parts down, shield constructs section of jurisdiction side and forms sunkenly, the arch is detained in sunken to make the buckling parts compress tightly around the guard plate.

Preferably, the No. I self-adhesive layer and the No. II self-adhesive layer are self-adhesive waterproof rolls.

Preferably, the reinforcing layer is a geotextile layer.

The utility model has the advantages that:

the utility model provides a set up the guard plate at shield structure section of jurisdiction upper surface, form the protective layer, avoid the shield structure section of jurisdiction to receive the erosion, make the shield structure section of jurisdiction keep good wholeness and stability, when the section of jurisdiction fracture, the self-adhesive layer on the guard plate can fill into the crack, maintains good waterproof performance, has improved the life of shield structure section of jurisdiction, and then has improved the security of shield tunnel.

The utility model discloses a self-adhesive layer bonds fixedly on the guard plate to and fixed frame joint is fixed, and dual fixed fixes the guard plate at shield structure section of jurisdiction upper surface, and is fixed more firm and stable, makes the guard plate continuously provide the protection to the shield structure section of jurisdiction steadily, prevents that the shield structure section of jurisdiction from receiving the erosion or taking place the dislocation.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of a guard plate of the present invention;

fig. 4 is an installation schematic diagram of a first embodiment of the present invention;

fig. 5 is an installation diagram of the second embodiment of the present invention;

fig. 6 is a schematic diagram of the self-adhesive layer of the protection plate for filling cracks after cracks appear in the shield segment in the utility model;

fig. 7 is an assembly view of the shield segments after ring formation;

wherein:

1 shield segment 2 protection plate

No. 4I self-adhesive layer of 3 fixed frame

5 reinforcing layer 6 rubber layer

7 upper fastening part and 8 lower fastening part

9 barb 10 hook groove

11 protrusions 12 recesses

No. 13 II self-adhesive layer.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples:

as shown in fig. 1-7, a shield constructs section of jurisdiction protective structure, including shield constructs section of jurisdiction 1, be provided with guard plate 2 on the shield constructs 1 surface in section of jurisdiction, shield constructs 1 outer still to be provided with the fixed frame 3 that goes on fixing all around to guard plate 2, the unilateral of fixed frame 3 is for bending the form, fixed frame 3 is fixed with shield constructs 1 side of section of jurisdiction.

Fixed frame 3 includes buckling parts 7, lower buckling parts 8, it is non-obtuse angle to go up the contained angle between buckling parts 7, the lower buckling parts 8.

The protection plate 2 comprises a reinforcing layer 5 and a rubber layer 6, a No. I self-adhesive layer 4 is arranged between the reinforcing layer 5 and the outer surface of the shield segment 1, and a No. II self-adhesive layer 13 is arranged between the reinforcing layer 5 and the rubber layer 6.

The outer contour of the fixed frame 3 is arc-shaped and is matched with the shield segment 1.

Example one

The utility model provides a shield constructs section of jurisdiction protective structure, includes shield constructs section of jurisdiction 1, is provided with guard plate 2 on the shield constructs 1 surface in section of jurisdiction, shield constructs 1 outer still to be provided with the fixed frame 3 that goes on fixing all around to guard plate 2, the unilateral of fixed frame 3 is for bending the form, fixed frame 3 is fixed with 1 side of shield constructs section of jurisdiction.

Go up buckling parts 7, lower buckling parts 8 and be the right angle form, 8 inboard barb 9 that form of buckling parts down, 1 side of shield constructs section of jurisdiction forms hook groove 10, barb 9, the mutual interlock in hook groove 10 to make last buckling parts 7 compress tightly around the guard plate 2.

During the installation, will protect 2 laminating on shield structure section of jurisdiction 1 upper surface through No. I self-adhesive layer 4 on the guard plate 2, detain fixed frame 3 on guard plate 2 again, make barb 9 slide into hook groove 10 in pushing down, fixed frame 3 will protect 2 inseparable firm fixes in shield structure section of jurisdiction 1 upper surface, fixed frame 3 forms dual fixed with No. I self-adhesive layer 4, and is more firm, stable, makes the self-adhesive layer continuously provide the protection to shield structure section of jurisdiction 1 steadily.

Example two

Go up buckling parts 7, lower buckling parts 8 and be the acute angle shape, 8 inboard archs 11 that form of buckling parts down, shield constructs 1 side of section of jurisdiction and forms sunken 12, protruding 11 is detained in sunken 12 to make buckling parts 7 compress tightly around the guard plate 2.

Acute angles between the upper buckling part 7 and the lower buckling part 8 form clamping force on the shield segment 1, a protrusion 11 is arranged on the lower buckling part 8, and a recess 12 matched with the protrusion 11 is arranged on the shield segment body 1. It is thereby achieved that the projection 11 snaps into the recess 12 stably under the clamping force.

No. I self-adhesive layer 4, No. II self-adhesive layer 13 are self-adhesion waterproofing membrane.

The self-adhesive waterproof coiled material is a waterproof material which is prepared by using self-adhesive rubber asphalt prepared from synthetic rubber such as SBS and the like, a tackifier, high-quality road petroleum asphalt and the like as a base material, using a tough high-density polyethylene film or aluminum foil as an upper surface material and using a peelable silicon-coated isolating film or silicon-coated isolating paper as a lower surface anti-sticking isolating material. The self-adhesive shield segment has a characteristic self-healing function, can heal smaller puncture damages by self, can be automatically integrated with objects when being subjected to puncture or hard object embedding, and can be filled into cracks when the shield segment 1 is affected by geology, construction and the like to generate cracks, so that good waterproof performance and stability are maintained.

The reinforcing layer 5 is a geotextile layer. The geotextile layer is a water-permeable geosynthetic material formed by needling or weaving synthetic fibers, the strength of the geotextile layer is high, the geotextile layer is corrosion-resistant, the geotextile layer plays a role in polymerization protection between the shield segments 1, and dislocation between the shield segments 1 is prevented.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a shield constructs section of jurisdiction protective structure, includes shield constructs section of jurisdiction (1), its characterized in that: the shield structure is provided with guard plate (2) on the surface of shield structure section of jurisdiction (1), shield structure section of jurisdiction (1) still is provided with fixed frame (3) of going on fixing all around to guard plate (2) outward, the unilateral of fixed frame (3) is for bending the form, fixed frame (3) are fixed with shield structure section of jurisdiction (1) side.

2. The shield segment protection structure of claim 1, wherein: fixed frame (3) include buckling parts (7), lower buckling parts (8), go up the contained angle between buckling parts (7), lower buckling parts (8) and be non-obtuse angle.

3. The shield segment protection structure of claim 2, wherein: the shield plate (2) comprises a reinforcing layer (5) and a rubber layer (6), a No. I self-adhesive layer (4) is arranged between the reinforcing layer (5) and the outer surface of the shield segment (1), and a No. II self-adhesive layer (13) is arranged between the reinforcing layer (5) and the rubber layer (6).

4. The shield segment protection structure of claim 1, wherein: the outer contour of the fixed frame (3) is arc-shaped and is matched with the shield segment (1).

5. The shield segment protection structure of claim 3, wherein: go up buckling parts (7), lower buckling parts (8) are the right angle form, buckling parts (8) inboard forms barb (9) down, shield constructs section of jurisdiction (1) side and forms hook groove (10), barb (9), hook groove (10) interlock each other to make last buckling parts (7) compress tightly around protection plate (2).

6. The shield segment protection structure of claim 3, wherein: go up buckling parts (7), lower buckling parts (8) are the acute angle form, buckling parts (8) inboard is protruding (11) down, shield constructs section of jurisdiction (1) side and forms sunken (12), protruding (11) are detained in sunken (12) to make last buckling parts (7) compress tightly around guard plate (2).

7. The shield segment protection structure of claim 3, wherein: no. I self-adhesive layer (4), No. II self-adhesive layer (13) are self-adhesion waterproofing membrane.

8. The shield segment protection structure of claim 3, wherein: the reinforcing layer (5) is a geotextile layer.