CN212479247U - Composite lining segment sealing groove - Google Patents
Composite lining segment sealing groove Download PDFInfo
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- CN212479247U CN212479247U CN202021244645.7U CN202021244645U CN212479247U CN 212479247 U CN212479247 U CN 212479247U CN 202021244645 U CN202021244645 U CN 202021244645U CN 212479247 U CN212479247 U CN 212479247U
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Abstract
The utility model provides a compound lining cutting section of jurisdiction seal groove, including lower steel seal groove, set up in the last steel seal groove of lower steel seal groove bottom and set up the sealed pad between lower steel seal groove and last steel seal groove, wherein: lower steel seal groove includes: the first sealing gasket accommodating groove, and a first baffle plate groove and a second baffle plate groove which are arranged at two sides of the first sealing gasket accommodating groove; go up steel seal groove and include: the first steel water baffle plate and the second steel water baffle plate are arranged on two sides of the second sealing gasket accommodating groove; the first sealing gasket containing groove and the second sealing gasket containing groove form a sealing gasket containing groove for containing a sealing gasket, the first steel water baffle is arranged in the first baffle groove, and the second steel water baffle is arranged in the second baffle groove. The beneficial effects of the utility model are that prevent that concrete pipe piece seal groove department from taking place the damaged seepage way that forms, through the fixed seal pad of physics mode, prevent that sealed pad from taking place to drop.
Description
Technical Field
The utility model belongs to the technical field of prefabricated formula structure, especially, relate to a compound lining cutting section of jurisdiction seal groove.
Background
The shield tunnel is an important component of the infrastructure construction in China. Along with the development of the shield tunnel in the direction of large burial depth and high water pressure gradually, the waterproof requirement of the tunnel is also continuously improved. According to the existing engineering practice experience, the segment joint of the shield tunnel is the frequent position of underground water leakage. The joint of the pipe piece is provided with an ethylene propylene diene monomer elastic rubber sealing gasket for resisting external high water pressure, and the ethylene propylene diene monomer elastic rubber sealing gasket is adhered to the prefabricated sealing groove of the concrete pipe piece through special rubber neoprene. The sealing gasket has the working principle that the sealing gasket is a segment closed compression sealing gasket, and the penetration of water pressure is blocked by means of the compressive stress of the sealing gasket and the contact surface of the sealing gasket and the compressive stress between the sealing gasket and a sealing groove of a concrete segment. The leakage at the segment joints is mainly caused by three reasons: 1) the opening amount and the slab staggering amount of the segment joints are increased due to the uneven settlement of the tunnel, and the compressive stress of the sealing gasket is reduced and is not enough to resist the external water pressure; 2) the segment sealing gasket falls off in the transportation and segment assembly processes, so that the sealing gasket is in an abnormal working state; 3) the sealing grooves or other positions of the seams of the pipe pieces are damaged and cracked, so that a new water seepage path is formed.
Meanwhile, researches of a plurality of scholars show that the waterproof performance of the steel sealing groove on the sealing gasket is improved to be higher than that of the concrete sealing groove. Therefore, it is necessary to design a composite sealing groove which has less stress influence on the existing concrete pipe and can significantly improve the waterproof performance of the sealing gasket.
The applicant of the application finds that the defects of the existing concrete pipe sheet sealing groove are mainly as follows:
the sealing gasket is easy to fall off if being stuck firmly in the transportation and segment assembly processes, so that the segment joint waterproof failure is caused;
the sealing groove part of the concrete segment is easy to damage to form a new leakage way;
the existing sealing gasket directly bears external water pressure, so that the compression deformation of the sealing gasket is changed, and the compression deformation state of the sealing gasket is different from that of the sealing gasket obtained by numerical simulation in the design process.
Disclosure of Invention
The utility model discloses a solve the problem in the background art, provide a compound lining cutting section of jurisdiction seal groove.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a compound lining segment seal groove, includes steel seal groove down, set up in the last steel seal groove of steel seal groove bottom down and set up in down the steel seal groove with go up the sealed pad between the steel seal groove, wherein:
the lower steel seal groove includes: the first gasket accommodating groove, and the first baffle plate groove and the second baffle plate groove which are arranged at two sides of the first gasket accommodating groove;
go up steel seal groove and include: the first steel water baffle plate and the second steel water baffle plate are arranged on two sides of the second sealing gasket accommodating groove;
the first sealing gasket containing groove and the second sealing gasket containing groove form a sealing gasket containing groove for containing a sealing gasket, the first steel water baffle is arranged in the first baffle groove, and the second steel water baffle is arranged in the second baffle groove.
Preferably, the lower steel sealing groove includes a first lower anchoring plate and a second lower anchoring plate, and the upper steel sealing groove includes a first upper anchoring plate and a second upper anchoring plate, wherein:
and the first lower anchoring plate and the first upper anchoring plate are both provided with reserved bolt holes.
Preferably, the water-swellable tape comprises two water-swellable tapes which are respectively arranged in the first baffle groove and the second baffle groove.
Preferably, the sealing gasket comprises a sealing gasket body and a plurality of holes arranged on the sealing gasket body, and rubber convex thorns are arranged on the side wall of the sealing gasket body.
Preferably, the first gasket accommodating groove comprises a first steel groove bottom plate and first steel groove side edges arranged at two sides of the first steel groove bottom plate;
the second sealing gasket accommodating groove comprises a second steel groove bottom plate and second steel groove side edges arranged on two sides of the second steel groove bottom plate.
Preferably, an included angle is formed between the side edge of the first steel groove and the bottom plate of the first steel groove; and an included angle is formed between the side edge of the second steel groove and the bottom plate of the second steel groove.
Preferably, the first steel groove side and the second steel groove side are both provided with a clamping groove structure.
Preferably, a lower steel groove anchoring plate is further arranged in the lower steel sealing groove, the lower steel groove anchoring plate comprises two lower steel groove anchoring plates, and the two lower steel groove anchoring plates are respectively arranged on two sides of the first steel groove bottom plate;
go up still to be equipped with steel groove anchor plate in the steel seal groove, go up steel groove anchor plate and include two, set up respectively in the both sides of second steel groove bottom plate.
Preferably, the lower steel sealing groove and the upper steel sealing groove are integrally formed by steel with the thickness of 2 mm.
The utility model has the advantages and positive effects that:
1. the sealing groove of the concrete segment is locally reinforced on the basis of not influencing the stress performance of concrete, so that a leakage path caused by the damage of the sealing groove of the concrete segment is avoided;
2. realizing a special side edge form that the sealing groove of the concrete pipe sheet cannot be formed, and fixing the sealing gasket in a physical mode;
3. the prefabricated steel baffle plate resists the external water pressure, so that the deformation of the sealing gasket caused by the direct water pressure impact on the sealing gasket is reduced;
4. the assembly precision of the duct pieces can be controlled by butting the water baffle and the baffle groove.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a composite lining segment sealing groove of the present invention;
FIG. 2 is a schematic view of a steel seal groove below the composite lining segment seal groove of the present invention;
FIG. 3 is a schematic view of a steel seal groove in the composite lining segment seal groove of the present invention;
figure 4 is the utility model discloses compound lining cutting section of jurisdiction seal groove sealing gasket's structural schematic diagram.
In the figure:
1. lower steel seal groove 2, upper steel seal groove 3 and sealing gasket
10. A first gasket receiving groove 20, a second gasket receiving groove 101, a first lower anchor plate
102. Reserved bolt hole 103, first baffle slot 104 and second lower anchoring plate
105. Lower steel groove anchoring plate 106, second baffle plate groove 107 and first steel groove bottom plate
108. First steel channel side 201, first upper anchoring plate 203, first steel water baffle
204. A second upper anchoring plate 205, an upper steel groove anchoring plate 206, a second steel water baffle plate
207. Second steel groove bottom plate 208, second steel groove side 301 and rubber convex thorn
302. Hole 303, water-swellable tape 4, concrete segment
Detailed Description
This embodiment provides a compound lining segment seal groove, and fig. 1 is the structure schematic diagram of this embodiment, as shown in fig. 1, including lower steel seal groove 1, set up in the last steel seal groove 2 of lower steel seal groove 1 bottom and set up sealed 3 between lower steel seal groove 1 and last steel seal groove 2, in this embodiment, lower steel seal groove 1 all adopts the steel integrated into one piece setting that 2mm is thick with last steel seal groove 2, wherein:
fig. 2 is a schematic structural diagram of the lower steel seal groove of this embodiment, and as shown in fig. 2, the lower steel seal groove 1 includes: a first gasket receiving groove 10, and a first baffle groove 103 and a second baffle groove 106 provided at both sides of the first gasket receiving groove 10; the depth of the first baffle groove 103 is 15mm, the depth of the second baffle groove 106 is 21mm, and the effect of controlling the assembling precision of the duct piece can be achieved by aligning the water baffles with the baffle grooves when the duct piece is assembled. The width and thickness of the water baffle and the depth and width of the baffle groove can be changed according to the design.
Fig. 3 is a schematic structural diagram of the upper steel seal groove of the present embodiment, and as shown in fig. 3, the upper steel seal groove 2 includes: the gasket comprises a second gasket accommodating groove 20, and a first steel water baffle plate 203 and a second steel water baffle plate 206 which are arranged at two sides of the second gasket accommodating groove 20, wherein the first steel water baffle plate 203 and the second steel water baffle plate 206 are both made of steel materials, the lengths of the first steel water baffle plate 203 and the second steel water baffle plate 206 are 20mm, the first steel water baffle plate 203 is a steel water baffle plate, the impact of external pressure water on the gasket 3 can be blocked, and if the gasket 3 is waterproof and ineffective, the second steel water baffle plate 206 can further block the external water;
the first gasket receiving groove 10 and the second gasket receiving groove 20 constitute a gasket receiving groove for receiving the gasket 3, the first steel water deflector 203 is disposed in the first baffle groove 103, and the second steel water deflector 206 is disposed in the second baffle groove 106.
During the use, lower steel seal groove 1, go up steel seal groove 2 and be 2mm thick prefabricated forming's whole steel groove, before concrete segment 4 pours, put into concrete segment 4 mould with the steel seal groove, then pour the concrete and guarantee that the concrete vibrates evenly, avoid appearing the space between steel sheet and concrete and lead to forming the infiltration route between concrete and steel sheet.
The sealing gasket 3 is matched and fixed on the first steel tank bottom plate 107 and the second steel tank bottom plate 207 of the steel tank through the rubber convex thorns 301, the first steel tank side 108 of the steel tank and the second steel tank side 208 of the steel tank in a physical mode and a small amount of neoprene sealant or other special-purpose adhesive for sealing gaskets of the shield tunnel.
As an alternative embodiment, lower steel sealing groove 1 includes first lower anchor plate 101 and second lower anchor plate 104, and upper steel sealing groove 2 includes first upper anchor plate 201 and second upper anchor plate 204, wherein:
the first lower anchoring plate 101 and the first upper anchoring plate 201 are provided with reserved bolt holes 102, the first lower anchoring plate 101 and the first upper anchoring plate 201 are provided with reserved holes, the connection between the sealing groove and the concrete segment is reinforced through bolt fastening, and the phenomenon that the sealing groove is connected with the concrete segment insecurely and a new water seepage path is generated between a steel plate and concrete is prevented.
During the use, steel seal groove 1, last steel seal groove 2 are mainly in by the cast-in-place anchor of concrete advances concrete segment 4 through first anchor board 101, first upper anchor board 201 down, also protect segment corner position when steel seal groove 1 and last steel seal groove 2 under fixed monoblock steel, prevent that the segment corner from taking place the damage.
As an optional embodiment, the water-swellable tape 303 is further included, and the number of the water-swellable tape 303 is two, and the two water-swellable tapes are respectively arranged in the first baffle groove 103 and the second baffle groove 106, and when the water-swellable tape 303 is used, the 2mm thick water-swellable tape 303 is placed at the bottom of the baffle groove, and the compression rate reaches 50%.
With first steel water baffle 203, second steel water baffle 206 just in time align first baffle groove 103 and second baffle groove 106 when the section of jurisdiction is assembled, under the complete closure state of section of jurisdiction, meet water inflation strip compression volume for 1mm, exist at the section of jurisdiction under the wrong platform operating mode, meet water inflation strip 303 and adopt the rubber material, meet water inflation and play certain waterproof effect, meet water inflation strip size and can be according to the material property and the baffle groove size change of the water inflation rubber of chooseing for use.
As an optional embodiment, the sealing gasket 3 includes a sealing gasket body and a plurality of holes 302 disposed on the sealing gasket body, fig. 4 is a schematic structural view of the sealing gasket of this embodiment, as shown in fig. 4, rubber protrusions 301 are disposed on a sidewall of the sealing gasket body, when the sealing gasket 3 is pressed into the sealing groove, the rubber protrusions 301 are folded inward, and after the sealing gasket 3 reaches the bottom, the rubber protrusions 301 are just snapped into the snapping grooves on the first steel groove side 108/the second steel groove side 208, so as to physically fix the special sealing gasket 3.
In this embodiment, the rubber burs 301 are made of rubber, and the holes 302 are circular holes in cross section, so that when the rubber burs are actually used, appropriate materials and hole forms can be selected as required.
As an alternative embodiment, the first gasket receiving groove 10 includes a first steel groove bottom plate 107 and first steel groove side edges 108 disposed at two sides of the first steel groove bottom plate 107;
the second gasket receiving groove 20 includes a second steel groove bottom plate 207 and second steel groove sides 208 disposed on two sides of the second steel groove bottom plate 207.
As an optional implementation manner, an included angle is formed between the first steel groove side 108 and the first steel groove bottom plate 107; an included angle is formed between the second steel groove side 208 and the second steel groove bottom plate 207, in this embodiment, the included angle between the two first steel groove sides 108 and the first steel groove bottom plate 107 is set to be an obtuse angle, and the included angle between the two second steel groove sides 208 and the second steel groove bottom plate 207 is set to be an obtuse angle, so that the gasket 3 can be conveniently installed, and the rubber convex spine 301 can be conveniently clamped into the clamping groove on the first steel groove side 108/the second steel groove side 208 after the gasket 3 reaches the bottom, so that the specially-made gasket 3 can be physically fixed.
As an optional implementation manner, the first steel groove side 108 and the second steel groove side 208 are both provided with a clamping groove structure, specifically, the clamping groove structure adopts a trapezoidal structure, so that the rubber protrusion 301 can be conveniently clamped and sealed firmly.
As an optional embodiment, a lower steel groove anchoring plate 105 is further disposed in the lower steel sealing groove 1, the lower steel groove anchoring plate 105 includes two lower steel groove anchoring plates 105, and the two lower steel groove anchoring plates 105 are respectively disposed on two sides of the first steel groove bottom plate 107;
an upper steel groove anchoring plate 205 is further arranged in the upper steel groove sealing groove 2, and the upper steel groove anchoring plates 205 comprise two plates which are respectively arranged on two sides of the second steel groove bottom plate 207. The lower steel groove anchoring plate 105 and the upper steel groove anchoring plate 205 are matched with the second lower anchoring plate 104 and the second upper anchoring plate 204, so that the connection effect between the lower steel sealing groove 1 and the upper steel sealing groove 2 and the concrete segment is mainly enhanced.
The utility model has the advantages that: the utility model provides a compound seal groove, utilizes the local reinforced concrete seal groove of precast steel seal groove promptly on current concrete segment basis. This compound seal groove is at local reinforced concrete section of jurisdiction seal groove, prevents that concrete section of jurisdiction seal groove department from taking place the breakage and forming the seepage way to there is not too big influence to the whole atress performance of concrete section of jurisdiction. Meanwhile, a steel baffle can block a part of water pressure, and external water pressure is prevented from directly impacting the sealing gasket to change the deformation state of the sealing gasket.
In addition, precast steel seal groove can realize the unable fashioned structure of concrete, through the fixed sealing pad of physical mode, prevents that sealed pad from taking place to drop.
When the device is used, the outer annular surface part of the segment joint of the prefabricated steel sealing groove is added with the shield tunnel lining segment, the steel sealing groove can be pre-installed on a concrete segment mould, and the segment can be lifted along with the simultaneous demoulding of the segment after pouring and forming. The steel seal groove is favorable for reducing the damage of the joint position and the formation of a water seepage path of a concrete crack, the steel baffle on the steel seal groove reduces the impact of external water pressure on the elastic sealing gasket in the seal groove, and the water-swelling rubber in the baffle groove can play a role in reducing the external water pressure acting on the elastic sealing gasket.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (9)
1. The utility model provides a compound lining segment seal groove which characterized in that: including lower steel seal groove, set up in steel seal groove bottom down last steel seal groove and set up in down the steel seal groove with go up the sealed pad between the steel seal groove, wherein:
the lower steel seal groove includes: the first gasket accommodating groove, and the first baffle plate groove and the second baffle plate groove which are arranged at two sides of the first gasket accommodating groove;
go up steel seal groove and include: the first steel water baffle plate and the second steel water baffle plate are arranged on two sides of the second sealing gasket accommodating groove;
the first sealing gasket containing groove and the second sealing gasket containing groove form a sealing gasket containing groove for containing a sealing gasket, the first steel water baffle is arranged in the first baffle groove, and the second steel water baffle is arranged in the second baffle groove.
2. The composite lining segment sealing groove of claim 1, wherein: lower steel seal groove includes anchor plate and second anchor plate down, go up steel seal groove and include anchor plate on first anchor plate and the second, wherein:
and the first lower anchoring plate and the first upper anchoring plate are both provided with reserved bolt holes.
3. The composite type lining segment sealing groove of claim 1 or 2, wherein: the water-swelling strip is arranged in the first baffle groove and the second baffle groove respectively.
4. The composite type lining segment sealing groove of claim 1 or 2, wherein: the sealing gasket comprises a sealing gasket body and a plurality of holes formed in the sealing gasket body, and rubber protruding thorns are arranged on the side wall of the sealing gasket body.
5. The composite lining segment sealing groove of claim 1, wherein: the first sealing gasket accommodating groove comprises a first steel groove bottom plate and first steel groove side edges arranged on two sides of the first steel groove bottom plate;
the second sealing gasket accommodating groove comprises a second steel groove bottom plate and second steel groove side edges arranged on two sides of the second steel groove bottom plate.
6. The composite type lining segment sealing groove of claim 5, wherein: an included angle is formed between the side edge of the first steel groove and the bottom plate of the first steel groove; and an included angle is formed between the side edge of the second steel groove and the bottom plate of the second steel groove.
7. The composite lining segment sealing groove of claim 6, wherein: and the first steel groove side edge and the second steel groove side edge are both provided with a clamping groove structure.
8. The composite type lining segment sealing groove of any one of claims 5 to 7, wherein: a lower steel groove anchoring plate is further arranged in the lower steel sealing groove and comprises two lower steel groove anchoring plates, and the two lower steel groove anchoring plates are respectively arranged on two sides of the first steel groove bottom plate;
go up still to be equipped with steel groove anchor plate in the steel seal groove, go up steel groove anchor plate and include two, set up respectively in the both sides of second steel groove bottom plate.
9. The composite lining segment sealing groove of claim 1, wherein: the lower steel sealing groove and the upper steel sealing groove are integrally formed by steel with the thickness of 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244645.7U CN212479247U (en) | 2020-06-30 | 2020-06-30 | Composite lining segment sealing groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244645.7U CN212479247U (en) | 2020-06-30 | 2020-06-30 | Composite lining segment sealing groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479247U true CN212479247U (en) | 2021-02-05 |
Family
ID=74456162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021244645.7U Active CN212479247U (en) | 2020-06-30 | 2020-06-30 | Composite lining segment sealing groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479247U (en) |
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2020
- 2020-06-30 CN CN202021244645.7U patent/CN212479247U/en active Active
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