CN219508661U

CN219508661U - Assembled frame tunnel seam structure with inside waterproof and drainage function

Info

Publication number: CN219508661U
Application number: CN202320317191.9U
Authority: CN
Inventors: 张浩楠; 陈宇航; 黄俊财; 胡钊健; 黄震; 彭章胤; 马少坤; 钟志伟; 许硕
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-08-11
Anticipated expiration: 2033-02-27

Abstract

The assembled frame tunnel joint structure with the internal water-proof and drainage function has the advantages that the joint has multiple functions mainly of water-proof and drainage on the premise of realizing the component connection function. The structure can form a seam with directional water guiding function, water penetrating through the waterproof protective layer on the upper part of the tunnel and sealing glue leaking into the structure is guided to be arranged in the horizontal drainage groove in the component, the bottom surface of the groove is provided with a certain angle, guided water flow can be discharged to vertical drainage cavities arranged on two sides of the integral component by utilizing the gravity function, and finally leaked water is discharged into the drainage ditch in the tunnel through the vertical drainage cavities. In addition, because the flexible rubber water stop strips are arranged in the joints, the water stop effect is enhanced, and meanwhile, the member has certain effects of shock absorption, shock insulation and sedimentation prevention. The structure is prefabricated in a factory, so the utility model has the advantages of high construction efficiency, low construction cost and the like.

Description

Assembled frame tunnel seam structure with inside waterproof and drainage function

Technical Field

The utility model relates to the field of assembled tunnels, in particular to an assembled frame tunnel seam structure with an internal waterproof and drainage function.

Background

The tunnel is an indispensable component in urban traffic with the outstanding advantage of basically not occupying ground resources, wherein the fabricated frame tunnel is conforming to the green construction concept and the development requirement of double carbon advocated by the current country, and has the advantages of short construction period, high internal space utilization rate and the like, so that the fabricated frame tunnel has wide application prospect in the fields of urban subway stations, channels, pipe galleries, municipal tunnels and the like.

The fabricated frame tunnel is formed by splicing a plurality of fabricated components, and compared with on-site pouring, the fabricated frame tunnel lacks of integrity, has obvious defects in waterproofness and shock resistance, is easily influenced by external environmental factors such as groundwater, precipitation, vibration, foundation settlement and the like, and is leaked and damaged, so that the safety and the functionality of the tunnel are influenced. In particular, in terms of waterproofing, existing fabricated frame tunnels are often provided with a waterproof layer on the surface or are sealed with concrete casting, but due to aging of materials, the strong permeability of the water itself is added, and these structures covered on the surface are often difficult to maintain high-efficiency waterproofing for a long time, resulting in water penetrating through the outer waterproof structure and penetrating into the inside of the member along the joints, thus eroding the tunnel structure.

Disclosure of Invention

In order to solve the problems in the background art, the utility model provides an assembled frame tunnel seam structure with an internal waterproof and drainage function, which solves the problem that the existing assembled frame tunnel is easy to be corroded by leaked water by designing a novel seam structure with a directional water guiding function on the premise of realizing a connecting function, and reduces the influence of vibration and foundation settlement on the assembled frame tunnel to a certain extent.

The utility model takes the upper half horizontal part of the upper rectangular tunnel section as a designed tunnel section and names the upper half horizontal part as a first tunnel section and a second tunnel section, and for convenience of description, takes the right part of the first tunnel section and the left part of the second tunnel section for sample analysis, in fact, the left side of the first tunnel section has the same structure as the left side of the second tunnel section, and the right side of the second tunnel section has the same structure as the right side of the first tunnel section, and simplification treatment is carried out here.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model discloses an assembled frame tunnel joint structure with an internal waterproof and drainage function, which comprises a tunnel first section and a tunnel second section, wherein the centers of the tops of the tunnel first section and the tunnel second section are respectively provided with a nut mounting groove, holes are prefabricated on two sides of the nut mounting grooves along the splicing direction, a convex joint and a concave joint are connected together through screws in the holes, nuts are connected to the surfaces of two ends of the screws, a groove is arranged below the convex joint, a tenon is arranged below the concave joint of the tunnel second section, the shapes and the sizes of the convex joint, the concave joint, the groove and the tenon are mutually matched, a rubber water stop strip is fixed on the plane of the bottom of the groove and the vertical plane of the lower side of the tunnel first section, a horizontal drainage groove is arranged below the bottom of the groove, vertical drainage cavities are arranged inside the two sides of the upper rectangular tunnel section and the lower rectangular tunnel section, the vertical drainage cavities are connected with the horizontal drainage grooves, and the bottoms of the vertical drainage cavities are connected with drainage pipes, and the drainage pipes are communicated with the drainage grooves.

The bottom of the tenon is horizontal, the top of the tenon is inclined, and the included angle between the inclined surface of the top and the horizontal plane is 20-30 degrees.

The surfaces of the right side surface of the first section of the tunnel, the left side surface of the second section of the tunnel, the horizontal drainage groove and the vertical drainage cavity are all coated with waterproof paint.

The bottom surface of the horizontal drainage groove is of an inclined structure with the middle high and the two low sides, the included angle between the inclined surface and the horizontal plane is 0.7-0.9 degrees, and the width of the horizontal drainage groove is larger than the width of a tunnel joint.

The vertical drainage cavity is located at the joint of the upper rectangular tunnel section and the lower rectangular tunnel section and is provided with a pre-buried sleeve, and the joint of the vertical drainage cavity and the horizontal drainage groove is of an arc-shaped structure.

And sealant is arranged between the convex joint and the concave joint.

Holes along the splicing direction are prefabricated at the bottoms of the first section and the second section of the tunnel, the whole tunnel is penetrated, all tunnel sections are connected in an anchoring mode through the prestressed anchor cable, and anchors are arranged at two ends of the prestressed anchor cable.

The utility model has the following beneficial effects:

according to the utility model, through the joint with the directional water guiding function and the gravity function of water, the water which leaks into the joint from the upper part of the component through the waterproof layer and the sealant is guided into the horizontal drainage groove and then is transferred to the vertical drainage cavity, and finally is discharged through the drainage pipe.

The built-in rubber water stop strip not only enables the water prevention and drainage function of the structure to be more effective, but also has high flexibility and can play roles in damping, shock insulation and reduction of foundation settlement influence on the structure.

The components of the utility model can be prefabricated in factories and are directly spliced in construction sites, and the utility model has the advantages of short construction period and little environmental pollution.

Drawings

FIG. 1 is a schematic cross-sectional view of a seam construction according to the present utility model;

FIG. 2 is a schematic view of a first section of a tunnel according to the present utility model;

FIG. 3 is a schematic view of a second segment of a tunnel according to the present utility model;

FIG. 4 is a schematic view of a splice of a first segment and a second segment of a tunnel according to the present utility model;

fig. 5 is a schematic view of drainage of the overall structure according to the present utility model.

Marked in the figure as: the tunnel comprises a tunnel first section 1, a tunnel second section 2, a convex joint 3, a concave joint 4, a groove 5, a tenon 6, a horizontal drainage groove 7, a rubber water stop strip 8, a sealant 9, a nut mounting groove 10, a screw 11, a nut 12, a prestressed anchor cable 13, an anchor 14, an upper rectangular tunnel section 15, a lower rectangular tunnel section 16, a vertical drainage cavity 17, a sleeve 18, a drainage pipe 19 and a drainage ditch 20.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without making any inventive effort are within the scope of the present utility model.

It should be noted that, in the description of the present utility model, the terms "first" and "second" are used only to describe a design method of a part of a structure, and do not represent the importance of the structure.

Furthermore, in the description of the present utility model, the upper half horizontal portion of the upper rectangular tunnel section 15 is taken as an analysis tunnel section, and the top and bottom of each tunnel section refer to the top and bottom of the upper half horizontal portion of the upper rectangular tunnel section 15.

Meanwhile, in the design of the present utility model, the structures of the tunnel sections are the same, and for convenience of analysis, only the right part of the first tunnel section 1 and the left part of the second tunnel section 2 are taken as examples for analysis, that is, in practice, the left side of the first tunnel section 1 has the same structure as the left side of the second tunnel section 2, and the right side of the second tunnel section 2 has the same structure as the right side of the first tunnel section 1, where simplification is performed.

Referring to fig. 1 to 5, the assembled frame tunnel seam structure with internal water-proof and drainage function of the present utility model includes a tunnel first section 1 and a tunnel second section 2. The right side surface of the first section 1 of the tunnel is provided with a convex joint 3 and a groove 5. The concave joint 4 and the tenon 6 are arranged on the left side surface of the second section 2 of the tunnel, the horizontal drainage groove 7 is prefabricated at the bottom of the groove 5, the vertical drainage cavities 17 are prefabricated at the two sides of the upper rectangular tunnel section 15 and the lower rectangular tunnel section 16, the right pair of horizontal drainage grooves 7 is arranged below the joint of the spliced tunnel sections, water permeated from the joint is ensured to flow into the horizontal drainage grooves 7 under the action of gravity, the inclined bottom surface flows into the vertical drainage cavities 17, and finally the water is discharged into the drainage ditch 20 inside the tunnel through the drainage pipe 19, so that a novel drainage structure is formed.

As shown in fig. 2, a rubber water stop strip 8 is fixed on the bottom plane of the groove 5 and the vertical plane of the lower side of the first section 1 of the tunnel, and after the tunnel sections are spliced, the joint is filled up to form a sealing structure, and the rubber water stop strip 8 has the characteristics of water expansion and strong corrosion resistance, so that water permeated from the joint is ensured not to flow into the tunnel along the tenon 6, and the waterproof safety in the tunnel is ensured.

The rubber water stop strip 8 is made of high-flexibility materials, allows the components to slightly displace at the joint positions, can weaken adverse effects caused by stress concentration at the corners of the components, and has the effects of shock absorption, shock isolation and stratum settlement deformation resistance on the whole structure.

As shown in fig. 2 and 5, the bottom of the groove 5 is provided with a horizontal drainage groove 7, the middle of the bottom of the horizontal drainage groove 7 is slightly higher, and the horizontal drainage groove is inclined towards the two sides of the tunnel section, the inclination angle is 0.7-0.9 degrees, so that water seeping from the joint of the tunnel section can flow into the vertical drainage cavity 17 along the horizontal drainage groove 7, the vertical drainage cavity 17 is communicated with the horizontal drainage groove 7, the size and the shape are mutually matched, and the joint is designed into an arc shape.

The surfaces of the right side surface of the first section 1 of the tunnel, the left side surface of the second section 2 of the tunnel, the horizontal drainage grooves 7 and the vertical drainage cavities 17 are coated with waterproof paint, so that the water erosion structure can be prevented.

As shown in fig. 5, the PVC pipe is pre-buried in the vertical drainage cavity 17 of the lower rectangular tunnel section at the joint as the sleeve 18, so that after the upper rectangular tunnel section 15 and the lower rectangular tunnel section 16 are spliced, water in the vertical drainage cavity 17 can be prevented from flowing out from the spliced position, and adverse effects are caused on the tunnel structure.

As shown in fig. 1, the joints of the first section 1 and the second section 2 of the tunnel are connected by adopting a screw 11, for this purpose, a nut mounting groove 10 is formed at the central position of the top of the section, holes matched with the screw size used in the actual engineering are prefabricated at the two sides of the nut mounting groove 10, the holes extend towards the joint direction, the holes are prefabricated at the joint positions, and the actual positions of the holes are determined according to the actual engineering requirements.

Further, holes penetrating the whole tunnel section are prefabricated at the bottom of the tunnel section, the sizes of the holes are matched with the prestressed anchor cables used in actual engineering, after all or part of tunnel sections are spliced, all or part of the tunnel sections are penetrated by the prestressed anchor cables 13, and finally the whole tunnel is anchored.

The foregoing has shown and described the basic principles and features of the utility model.

The assembly steps of the utility model are as follows:

(1) The upper 15 and lower 16 rectangular tunnel sections are prefabricated in the factory as required in connection with the engineering practice.

(2) And (3) finishing corresponding splicing of the upper rectangular tunnel section and the lower rectangular tunnel section by using a crane at a construction site, fixing the upper rectangular tunnel section and the lower rectangular tunnel section on a track laid in advance, and conveying the spliced whole rectangular tunnel section to a corresponding position by using the track.

(3) The adjacent rectangular tunnel sections are smeared with sealant 9 before being transversely spliced, after the joints are spliced, the mounting screw rods 11 penetrate through the joints on two sides, the screw rods 11 are screwed up by the screw caps 12 in the screw cap mounting grooves 10, and the connection between the joints is reinforced, and the specific construction mode depends on engineering practice.

(4) After all or part of the whole rectangular tunnel sections are spliced, the prestressed anchor cable 13 is penetrated through the holes at the bottom of each rectangular tunnel section, and the two ends of the anchor cable are anchored by the anchors 14, and the specific construction mode depends on engineering practice.

And the screw connection mode and the prestressed anchor cable anchoring mode are constructed according to the conventional construction mode under the condition of no special working condition.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an assembled frame tunnel seam structure with inside waterproof and drainage function, includes tunnel first section (1) and tunnel second section (2), and nut mounting groove (10) are offered respectively to tunnel first section (1) and tunnel second section (2) top central authorities, prefabricated hole along the concatenation direction in nut mounting groove (10) both sides, connect protruding type joint (3) and concave type joint (4) together through screw rod (11) in the hole, screw rod (11) both ends surface connection has nut (12), a serial communication port, protruding type joint (3) below has offered recess (5), tenon (6) have been offered to concave type joint (4) below, protruding type joint (3) and concave type joint (4) and recess (5) and tenon (6) shape size mutually support, be fixed with rubber sealing strip (8) on recess (5) bottom plane and tunnel first section (1) downside vertical plane, horizontal drainage groove (7) are offered to recess (5) bottom below, go up rectangle section (15) and lower rectangle tunnel (16) inside (17) and be connected with drain pipe (17) vertical cavity (17) inside, drain cavity (17) are offered, the drain pipe (19) is communicated with the drain ditch (20).

2. The assembled frame tunnel joint structure with the internal water-proof and drainage function according to claim 1, wherein the bottom of the tenon (6) is horizontal, the top of the tenon is inclined, and the included angle between the inclined surface of the top and the horizontal plane is 20-30 degrees.

3. The assembled frame tunnel seam structure with internal water-proof and drainage function according to claim 1, characterized in that the surfaces of the right side surface of the tunnel first section (1), the left side surface of the tunnel second section (2), the horizontal drainage groove (7) and the vertical drainage cavity (17) are all coated with water-proof paint.

4. The tunnel joint structure with the built-in frame and the waterproof and drainage functions according to claim 1, wherein the bottom surface of the horizontal drainage groove (7) is of an inclined structure with a middle high side and two sides low, the inclined surface and the horizontal plane form an included angle of 0.7-0.9 degrees, and the width of the horizontal drainage groove (7) is larger than the width of the tunnel joint.

5. The assembled frame tunnel seam structure with the internal water-proof and drainage function according to claim 1, wherein the vertical drainage cavity (17) is located at an embedded sleeve (18) at the joint of the upper rectangular tunnel section (15) and the lower rectangular tunnel section (16), and the joint of the vertical drainage cavity (17) and the horizontal drainage groove (7) is of an arc-shaped structure.

6. The tunnel seam structure with the built-in waterproof and drainage function for the assembled frame according to claim 1, wherein a sealant (9) is arranged between the male connector (3) and the female connector (4).

7. The assembled frame tunnel seam structure with the internal water-proof and drainage function according to claim 1, wherein holes along the splicing direction are prefabricated at the bottoms of the first tunnel section (1) and the second tunnel section (2), the whole tunnel is penetrated, all tunnel sections are connected in an anchoring mode through a pre-stressed anchor cable (13), and anchors (14) are arranged at two ends of the pre-stressed anchor cable (13).