CN111677527B - Composite lining segment sealing groove - Google Patents
Composite lining segment sealing groove Download PDFInfo
- Publication number
- CN111677527B CN111677527B CN202010615887.0A CN202010615887A CN111677527B CN 111677527 B CN111677527 B CN 111677527B CN 202010615887 A CN202010615887 A CN 202010615887A CN 111677527 B CN111677527 B CN 111677527B
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- groove
- steel
- sealing gasket
- baffle
- seal groove
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- 238000007789 sealing Methods 0.000 title claims abstract description 102
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 187
- 239000010959 steel Substances 0.000 claims abstract description 187
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000004873 anchoring Methods 0.000 claims description 18
- 229920001971 elastomer Polymers 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000004308 accommodation Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides a composite lining segment sealing groove, including lower steel seal groove, set up in the last steel seal groove of lower steel seal groove bottom, set up the sealed pad between lower steel seal groove and last steel seal groove, wherein: the lower steel seal groove includes: the first sealing gasket accommodating groove, and the first baffle groove and the second baffle groove which are arranged on two sides of the first sealing gasket accommodating groove; the upper steel seal groove comprises: the first sealing gasket accommodating groove, and the first steel water baffle and the second steel water baffle which are arranged on two sides of the second sealing gasket accommodating groove; the first sealing gasket accommodating groove and the second sealing gasket accommodating groove form a sealing gasket accommodating groove for accommodating sealing gaskets, 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 sealing gasket has the beneficial effects that the sealing groove of the concrete pipe sheet is prevented from being damaged to form a leakage path, and the sealing gasket is fixed in a physical mode to prevent the sealing gasket from falling off.
Description
Technical Field
The invention belongs to the technical field of prefabricated structures, and particularly relates to a composite lining segment sealing groove.
Background
The shield tunnel is an important component of infrastructure construction in China. Along with the urban development demand, the shield tunnel gradually develops to the direction of large burial depth and high water pressure, and the waterproof requirement of the tunnel is also continuously improved. According to the prior engineering practice experience, the joint of the shield tunnel segment is the frequent position of underground water leakage. The pipe joint is additionally provided with an ethylene propylene diene rubber sealing gasket for resisting external high water pressure, and the ethylene propylene diene rubber sealing gasket is adhered into the precast sealing groove of the concrete pipe through special rubber neoprene. The working principle of the sealing gasket is mainly that the pipe piece is closed to compress the sealing gasket, and the water pressure is blocked from being permeated by virtue of the compression stress of the contact surface of the sealing gasket and the compression stress between the sealing gasket and the sealing groove of the concrete pipe piece. Leakage at the segment joint is mainly caused by three reasons: 1) The uneven settlement of the tunnel causes the increase of the opening amount of the pipe piece joint and the dislocation amount, the compression stress of the sealing gasket is reduced, and the sealing gasket is insufficient to resist the external water pressure; 2) The duct piece sealing gasket falls off in the transportation and duct piece assembling processes, so that the sealing gasket is in an abnormal working state; 3) And the segment sealing groove or other positions of the joint are broken and cracked to form a new water seepage path.
Meanwhile, many scholars' researches show that the waterproof performance of the steel seal groove on the sealing gasket is improved higher than that of the concrete seal groove. Therefore, it is necessary to design a composite seal groove which has small stress influence on the existing concrete pipe sheet and can remarkably improve the waterproof performance of the sealing gasket.
The applicant of the present application finds that the existing sealing grooves of concrete pipe sheets mainly have the following defects:
If the sealing gasket is not firmly adhered in the transportation and duct piece assembling process, the sealing gasket is easy to fall off, so that the duct piece joint is waterproof and invalid;
The sealing groove part of the concrete segment is easy to be damaged to form a new leakage path;
The existing sealing gasket directly bears external water pressure, so that the compression deformation of the sealing gasket changes, and the state of the compression deformation of the sealing gasket obtained by numerical simulation in the design process is different from that of the sealing gasket.
Disclosure of Invention
The invention aims to solve the problems in the background technology and provides a compound lining segment sealing groove.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a compound lining segment seal groove, includes down steel seal groove, set up in go up steel seal groove of steel seal groove bottom down and set up in down steel seal groove with go up the sealed pad between the steel seal groove, wherein:
The lower steel seal groove includes: the sealing device comprises a first sealing gasket accommodating groove, and a first baffle groove and a second baffle groove which are arranged on two sides of the first sealing gasket accommodating groove;
the upper steel seal groove comprises: the first sealing gasket accommodating groove, and the first steel water baffle and the second steel water baffle which are arranged on two sides of the second sealing gasket accommodating groove;
The first sealing gasket accommodating groove and the second sealing gasket accommodating groove form a sealing gasket accommodating groove for accommodating sealing gaskets, 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 seal groove includes a first lower anchor plate and a second lower anchor plate, and the upper steel seal groove includes a first upper anchor plate and a second upper anchor plate, wherein:
the first lower anchor plate and the first upper anchor plate are respectively provided with reserved bolt holes.
Preferably, the water-swellable strip comprises two water-swellable strips 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 formed in the sealing gasket body, and rubber protruding thorns are arranged on the side wall of the sealing gasket body.
Preferably, 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.
Preferably, an included angle is formed between the side edge of the first steel tank and the bottom plate of the first steel tank; an included angle is arranged between the side edge of the second steel tank and the bottom plate of the second steel tank.
Preferably, the first steel groove side edge and the second steel groove side edge are both provided with clamping groove structures.
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 at two sides of the first steel groove bottom plate;
and an upper steel groove anchoring plate is further arranged in the upper steel sealing groove, and comprises two upper steel groove anchoring plates which are respectively arranged at two sides of the second steel groove bottom plate.
Preferably, the lower steel seal groove and the upper steel seal groove are integrally formed by steel with the thickness of 2 mm.
The invention has the advantages and positive effects that:
1. the sealing groove of the concrete pipe sheet is locally reinforced on the basis of not influencing the stress performance of the concrete, so that leakage paths caused by the damage of the sealing groove of the concrete pipe sheet are avoided;
2. realizing a special side form of the sealing groove of the concrete pipe sheet, and fixing the sealing gasket in a physical mode;
3. The prefabricated steel baffle is used for resisting external water pressure, so that the deformation of the sealing gasket caused by the direct water pressure impact of the sealing gasket is reduced;
4. The pipe piece assembling precision can be controlled through the butt joint of the water baffle and the baffle groove.
Drawings
FIG. 1 is a schematic view of an embodiment of a seal groove of a composite lining segment of the present invention;
FIG. 2 is a schematic view of a steel seal groove under a composite lining segment seal groove of the present invention;
FIG. 3 is a schematic view of a steel seal groove on a seal groove of a composite lining segment according to the present invention;
Fig. 4 is a schematic structural view of the composite lining segment seal groove gasket of the present invention.
In the figure:
1. Lower steel seal groove 2, upper steel seal groove 3 and gasket
10. First gasket accommodation groove 20, second gasket accommodation groove 101, first lower anchor plate
102. Reserved bolt hole 103, first baffle plate groove 104 and second lower anchor plate
105. Lower steel channel anchor plate 106, second baffle channel 107, first steel channel bottom plate
108. First steel groove side 201, first upper anchor plate 203, first steel water baffle
204. Second upper anchor plate 205, upper steel channel anchor plate 206, second steel dam
207. Second steel groove bottom plate 208, second steel groove side 301 and rubber thorn
302. Hole 303, water-swellable tape 4, and concrete segment
Detailed Description
This embodiment provides a compound lining segment seal groove, fig. 1 is a schematic structural 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 in the sealed pad 3 between lower steel seal groove 1 and last steel seal groove 2, in this embodiment, lower steel seal groove 1 and last steel seal groove 2 all adopt the steel integrated into one piece setting of 2mm thickness, wherein:
Fig. 2 is a schematic structural view of the lower steel seal groove of the present embodiment, and as shown in fig. 2, the lower steel seal groove 1 includes: a first gasket accommodation groove 10, and a first baffle groove 103 and a second baffle groove 106 provided on both sides of the first gasket accommodation groove 10; the first baffle groove 103 is 15mm deep, the second baffle groove 106 is 21mm deep, and the baffle plate is aligned with the baffle groove when the duct piece is assembled, so that the function of controlling the duct piece assembling precision to a certain extent can be achieved. The width, thickness and depth of the baffle plate and the width of the baffle plate groove can be changed according to the design. .
Fig. 3 is a schematic structural view of the upper steel seal groove of the present embodiment, and as shown in fig. 3, the upper steel seal groove 2 includes: the second sealing gasket accommodating groove 20, and the first steel water baffle 203 and the second steel water baffle 206 arranged at two sides of the second sealing gasket accommodating groove 20, wherein the first steel water baffle 203 and the second steel water baffle 206 are made of steel materials and have the length of 20mm, the first steel water baffle 203 is arranged as a steel water baffle, so that the impact of external pressure water on the sealing gasket 3 can be blocked, and if the sealing gasket 3 fails in water resistance, the second steel water baffle 206 can further block external water;
The first gasket accommodation groove 10 and the second gasket accommodation groove 20 form a gasket accommodation groove for accommodating the gasket 3, the first steel water baffle 203 is disposed in the first baffle groove 103, and the second steel water baffle 206 is disposed in the second baffle groove 106.
When the concrete pipe piece 4 is used, the lower steel seal groove 1 and the upper steel seal groove 2 are integrated steel grooves formed by prefabricating the thickness of 2mm, before pouring the concrete pipe piece 4, the steel seal grooves are placed into a concrete pipe piece 4 die, then concrete is poured, the concrete is uniformly vibrated, and the water seepage path between the concrete and the steel plate caused by the occurrence of gaps between the steel plate and the concrete is avoided.
The gasket 3 is physically fixed to the first steel tank bottom plate 107 and the second steel tank bottom plate 207 by rubber bosses 301 and the first steel tank side 108 and the second steel tank side 208 of the steel tank, and by matching with a small amount of neoprene sealant or other sealant special for the shield tunnel gasket.
As an alternative embodiment, lower steel seal groove 1 comprises a first lower anchor plate 101 and a second lower anchor plate 104, and upper steel seal groove 2 comprises a first upper anchor plate 201 and a second upper anchor plate 204, wherein:
The first lower anchor plate 101 and the first upper anchor plate 201 are respectively provided with a reserved bolt hole 102, the first lower anchor plate 101 and the first upper anchor plate 201 are respectively provided with a reserved hole, and the connection of the sealing groove and the concrete pipe piece is reinforced through bolt fastening, so that the sealing groove and the concrete pipe piece are prevented from being connected insecurely to generate a new water seepage path between the steel plate and the concrete.
When the novel concrete pipe piece fixing device is used, the lower steel seal groove 1 and the upper steel seal groove 2 are mainly anchored into the concrete pipe piece 4 through the first lower anchor plate 101 and the first upper anchor plate 201 by concrete in-situ, and the whole steel lower steel seal groove 1 and the upper steel seal groove 2 are fixed, and meanwhile the corner parts of the pipe piece are protected, so that the corner of the pipe piece is prevented from being damaged.
As an alternative embodiment, the novel water-swelling device further comprises water-swelling strips 303, wherein the two water-swelling strips 303 are respectively arranged in the first baffle groove 103 and the second baffle groove 106, and when the novel water-swelling device is used, the water-swelling strips 303 with the thickness of 2mm are placed at the bottom of the baffle groove, and the compression ratio reaches 50%.
When the duct piece is assembled, the first steel water baffle 203 and the second steel water baffle 206 are just aligned with the first baffle groove 103 and the second baffle groove 106, the compression amount of the water-swelling strip is 1mm in the completely closed state of the duct piece, the water-swelling strip 303 is made of rubber materials under the condition that the duct piece is staggered, the water-swelling strip plays a certain waterproof role, and the size of the water-swelling strip can be changed according to the material property of the selected water-swelling rubber and the size of the baffle groove.
As an alternative embodiment, the gasket 3 includes a gasket body and a plurality of holes 302 disposed on the gasket body, and fig. 4 is a schematic structural diagram of the gasket according to this embodiment, as shown in fig. 4, a rubber protrusion 301 is disposed on a side wall of the gasket body, when the gasket 3 is pressed into the seal groove, the rubber protrusion 301 is folded inwards, and after the gasket 3 reaches the bottom, the rubber protrusion 301 is exactly clamped into a clamping groove on the first steel groove side 108/the second steel groove side 208, so as to physically fix the special gasket 3.
In this embodiment, the rubber protrusion 301 is made of rubber, the hole 302 is a circular hole with a cross section, and in actual use, a proper material and a hole form can be selected according to needs.
As an alternative embodiment, the first gasket accommodation groove 10 includes a first steel groove bottom plate 107 and first steel groove side edges 108 provided at both sides of the first steel groove bottom plate 107;
the second gasket accommodation groove 20 includes a second steel groove bottom plate 207 and second steel groove side edges 208 provided at both sides of the second steel groove bottom plate 207.
As an alternative embodiment, an included angle is formed between the first steel groove side edge 108 and the first steel groove bottom plate 107; an included angle is formed between the second steel groove side edges 208 and the second steel groove bottom plate 207, in this embodiment, the included angle between the two first steel groove side edges 108 and the first steel groove bottom plate 107 is an obtuse angle, and the included angle between the two second steel groove side edges 208 and the second steel groove bottom plate 207 is an obtuse angle, so that the installation of the sealing gasket 3 is facilitated, and the rubber protruding thorn 301 is beneficial to be exactly clamped into the clamping groove on the first steel groove side edges 108/the second steel groove side edges 208 after the sealing gasket 3 reaches the bottom, so that the special sealing gasket 3 is fixed in a physical mode.
As an alternative embodiment, the first steel groove side 108 and the second steel groove side 208 are respectively provided with a clamping groove structure, specifically, the clamping groove structure adopts a trapezoid structure, so that the rubber protruding thorn 301 is convenient to clamp in and seal firmly.
As an alternative embodiment, a lower steel groove anchoring plate 105 is further arranged in the lower steel seal groove 1, the lower steel groove anchoring plate 105 comprises two lower steel groove anchoring plates 105, and the two lower steel groove anchoring plates 105 are respectively arranged at two sides of the first steel groove bottom plate 107;
an upper steel groove anchoring plate 205 is further arranged in the upper steel seal groove 2, and the upper steel groove anchoring plate 205 comprises two pieces which are respectively arranged at two sides of the second steel groove bottom plate 207. The lower steel groove anchor plate 105 and the upper steel groove anchor plate 205 are matched with the second lower anchor plate 104 and the second upper anchor plate 204, so that the connection effect between the lower steel seal groove 1, the upper steel seal groove 2 and the concrete segment is mainly enhanced.
The beneficial effects of the invention are as follows: the composite sealing groove is provided, namely, the concrete sealing groove is locally reinforced by utilizing the prefabricated steel sealing groove on the basis of the existing concrete segment. The composite sealing groove locally strengthens the sealing groove of the concrete pipe sheet, prevents the sealing groove of the concrete pipe sheet from being damaged to form a leakage path, and has no great influence on the overall stress performance of the concrete pipe sheet. Meanwhile, a part of water pressure can be blocked by the steel baffle plate, so that the external water pressure is prevented from directly impacting the sealing gasket to change the deformation state of the sealing gasket.
In addition, the prefabricated steel seal groove can realize the structure that concrete can not be formed, and the sealing gasket is fixed in a physical mode to prevent the sealing gasket from falling off.
When the shield tunnel lining segment joint is used, the prefabricated steel seal groove is utilized to locally add the outer ring surface part of the shield tunnel lining segment joint, the steel seal groove can be pre-installed on a concrete segment mould, and the steel seal groove can be lifted along with the segment after the segment is poured and molded. The steel seal groove is favorable for reducing the damage of the joint part and the formation of a concrete crack water seepage path, and the steel baffle plate on the steel seal groove reduces the impact of external water pressure on the elastic sealing gasket in the seal groove, so that the water-swelling rubber in the baffle plate groove can play a role in reducing the external water pressure on the elastic sealing gasket.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (5)
1. A compound lining segment seal groove is characterized in that: including lower steel seal groove, set up in go up steel seal groove of lower steel seal groove bottom, set up in lower steel seal groove with go up the sealing pad between the steel seal groove, wherein:
The lower steel seal groove includes: the sealing device comprises a first sealing gasket accommodating groove, and a first baffle groove and a second baffle groove which are arranged on two sides of the first sealing gasket accommodating groove;
the upper steel seal groove comprises: the first sealing gasket accommodating groove, and the first steel water baffle and the second steel water baffle which are arranged on two sides of the second sealing gasket accommodating groove;
The first sealing gasket accommodating groove and the second sealing gasket accommodating groove form a sealing gasket accommodating groove for accommodating sealing gaskets, 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 sealing gasket comprises a sealing gasket body and a plurality of holes formed in the sealing gasket body, wherein rubber protruding thorns are arranged on the side wall of the sealing gasket body;
The first sealing gasket accommodating groove comprises a first steel groove bottom plate and is arranged on the first steel groove bottom plate
The side edges of the first steel grooves at two sides;
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;
An included angle is formed between the side edge of the first steel tank and the bottom plate of the first steel tank; an included angle is formed between the side edge of the second steel tank and the bottom plate of the second steel tank;
and clamping groove structures are arranged on the side edges of the first steel groove and the side edges of the second steel groove.
2. The composite lining segment seal groove of claim 1, wherein: lower steel seal groove includes anchor board and second anchor board down under first, go up steel seal groove and go up anchor board including first anchor board and second, wherein:
the first lower anchor plate and the first upper anchor plate are respectively provided with reserved bolt holes.
3. The composite lining segment seal 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 lining segment seal groove of claim 1 or 2, wherein: 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 at two sides of the first steel groove bottom plate;
and an upper steel groove anchoring plate is further arranged in the upper steel sealing groove, and comprises two upper steel groove anchoring plates which are respectively arranged at two sides of the second steel groove bottom plate.
5. The composite lining segment seal groove of claim 1, wherein: the lower steel seal groove and the upper steel seal groove are integrally formed by steel with the thickness of 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615887.0A CN111677527B (en) | 2020-06-30 | 2020-06-30 | Composite lining segment sealing groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010615887.0A CN111677527B (en) | 2020-06-30 | 2020-06-30 | Composite lining segment sealing groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111677527A CN111677527A (en) | 2020-09-18 |
| CN111677527B true CN111677527B (en) | 2024-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010615887.0A Active CN111677527B (en) | 2020-06-30 | 2020-06-30 | Composite lining segment sealing groove |
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| Country | Link |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212479247U (en) * | 2020-06-30 | 2021-02-05 | 中冶天工集团有限公司 | Composite lining segment sealing groove |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204253053U (en) * | 2014-11-28 | 2015-04-08 | 中铁第四勘察设计院集团有限公司 | If the prefabricated anti-seismic construction of liner shield tunnel |
| EP3591166B1 (en) * | 2018-07-02 | 2021-06-02 | Herrenknecht Aktiengesellschaft | Tunnel lining composed of at least two concrete elements |
| CN108952777A (en) * | 2018-09-21 | 2018-12-07 | 中铁第四勘察设计院集团有限公司 | A kind of novel combined waterproof sealing gasket of shield tunnel |
| CN109469495A (en) * | 2018-12-26 | 2019-03-15 | 天津大学 | A kind of duct pieces of shield tunnel joint seal pad with concavo-convex cross-section form |
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2020
- 2020-06-30 CN CN202010615887.0A patent/CN111677527B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212479247U (en) * | 2020-06-30 | 2021-02-05 | 中冶天工集团有限公司 | Composite lining segment sealing groove |
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| CN111677527A (en) | 2020-09-18 |
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