CN113323020A - Water-stopping packaging method for immersed tube end sealing door - Google Patents

Water-stopping packaging method for immersed tube end sealing door Download PDF

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Publication number
CN113323020A
CN113323020A CN202110655005.8A CN202110655005A CN113323020A CN 113323020 A CN113323020 A CN 113323020A CN 202110655005 A CN202110655005 A CN 202110655005A CN 113323020 A CN113323020 A CN 113323020A
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China
Prior art keywords
immersed tube
rubber body
sealing
end sealing
sealing door
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CN202110655005.8A
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CN113323020B (en
Inventor
马亿光明
黄跃龙
戴双全
陈猛
梁邦炎
李汉渤
王晓东
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No 2 Engineering Co of CCCC Fourth Harbor Engineering Co Ltd
Southern Marine Science and Engineering Guangdong Laboratory Zhuhai
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No 2 Engineering Co of CCCC Fourth Harbor Engineering Co Ltd
Southern Marine Science and Engineering Guangdong Laboratory Zhuhai
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Priority to CN202110655005.8A priority Critical patent/CN113323020B/en
Publication of CN113323020A publication Critical patent/CN113323020A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/063—Tunnels submerged into, or built in, open water
    • E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

The invention discloses a water sealing packaging method of an end sealing door of a immersed tube, which is characterized in that the end sealing door is fixed at the end port of the immersed tube in a pulling way through the matching of a pulling lug and a pulling rod, so that pulling force is provided for the end sealing door, and a pressure bearing pad and a V-shaped water sealing strip which are arranged between the end sealing door and the end port of the immersed tube in a cushioning way are extruded and deformed to play a role in sealing and stopping water. Simultaneously, the rubber body and the fastening plate are respectively installed from the two sides of the end sealing door in the gap between the adjacent two end sealing doors, the rubber body and the fastening plate are connected through the fastening bolt and the nut, the fastening plate is used as a fulcrum, the pulling force for pulling the fastening bolt is generated through the adjusting nut and acts on the rubber body, and the rubber body is pulled into the gap and generates elastic deformation to play a role in sealing and stopping water. The installation of end seal door, the gap between end seal door and the immersed tube port, the gap between the adjacent both ends seal door all can oppress rubber stagnant water structure through the pulling force effect and realize sealedly, reduce sealed operating procedure, promote tunnel efficiency of construction. And the end sealing door and all water stopping parts are easy to disassemble and reuse.

Description

Water-stopping packaging method for immersed tube end sealing door
Technical Field
The invention belongs to the technical field of sealing and water stopping of immersed tube end sealing doors, and particularly relates to a water stopping packaging method of an immersed tube end sealing door.
Background
The immersed tube is mainly used for building a tunnel in a modularized mode, single-section immersed tubes can be manufactured in an area convenient for construction, and then the immersed tubes are transported to a tunnel construction area section by section to be combined and spliced. When a submarine immersed tube tunnel is built, end sealing doors are required to be installed to seal two ports of the immersed tube, and the end sealing doors are removed after the two immersed tubes are butted at the seabed, so that the tunnel built by the immersed tubes is smooth.
At present, an assembled end sealing door structure consists of a steel beam bracket, a steel beam, an outer side bracket, a sealing door and a sealing flitch. The water stopping stress of the device is transmitted layer by adopting a laminated structure, a steel beam bracket supports against the steel beam, the steel beam and an outer side bracket support against a sealing door, the sealing door receives water pressure and transmits force to the steel beam, the steel beam bracket and the outer side bracket on the back of the sealing door layer by layer, and the steel bracket is transmitted to the inner wall of the sinking pipe through an embedded part steel plate on the inner wall of the sinking pipe; the door sealing watertight structure is characterized in that a plurality of end sealing doors are arranged on the inner wall of the end opening of the immersed tube in parallel, a plane steel plate is embedded in the circumferential direction of the inner wall of the end opening of the immersed tube, a gap between the end sealing door and the end opening of the immersed tube is welded and sealed by an arc flitch, and a gap between the end sealing door and the end sealing door is welded and sealed by a plane flitch.
The sinking pipe has large volume, more laminated components, heavy assembly work and more sealing welding work, thus seriously affecting the tunnel construction efficiency; the welding process is a disposable structure, can not be repeatedly utilized, has large consumption of welding materials and heavy dismantling work; the recycled sealing door needs to be repaired, and the workload is large.
Disclosure of Invention
The invention aims to provide a water-stopping packaging method for a sinking pipe end sealing door.
The invention is realized by the following technical scheme:
a water stop packaging method for a sinking pipe end sealing door comprises a plurality of end sealing doors, pull lugs, pull rods, rubber bodies, fastening plates, fastening bolts, nuts, embedded part steel plates, pressure bearing pads and V-shaped water stop strips; the embedded part steel plate is installed at the end opening of the immersed tube, the pull lug is fixedly installed on the inner wall of the immersed tube, the end sealing doors are installed at the end opening of the immersed tube through the pull lug and the pull rod, the pressure bearing pad and the V-shaped water stop strip pad are arranged between the end sealing doors and the embedded part steel plate, the rubber body is embedded between the adjacent two end sealing doors from the outer side of the immersed tube, the fastening plate is abutted against the back surfaces of the adjacent two end sealing doors from the inner side of the immersed tube, and the fastening bolt and the nut are matched to fixedly pull the rubber body and the fastening plate; also comprises the following steps:
the method comprises the following steps: an embedded part steel plate is arranged at the circumferential edge of the end opening of the immersed tube;
step two: a pressure bearing pad and a V-shaped water stop strip are arranged at the edge of each end sealing door;
step three: mounting a pull lug on the inner wall of the immersed tube, wherein a plurality of end sealing doors are erected at the end port of the immersed tube in parallel, each end sealing door is connected with the pull lug through a pull rod, so that a pressure bearing pad and a V-shaped water stop strip are attached to an embedded part steel plate, and the V-shaped water stop strip is deformed under the action of the pulling force of the pull rod and is used for sealing a gap between the end sealing door and the end port of the immersed tube;
step four: hoisting a rubber body outside the immersed tube to enable the rubber body to be embedded into an installation gap between the adjacent two end sealing doors from the outside of the immersed tube;
step five: mounting a fastening plate on the inner side of the immersed tube, and enabling the fastening plate to cross the mounting gap and respectively abut against the back surfaces of the sealing doors at the two ends;
step six: one end of the fastening bolt is fixed on the rubber body, the other end of the fastening bolt penetrates through the mounting gap and the fastening plate, a nut is sleeved at one end, protruding out of the through hole of the fastening plate, of the fastening bolt, the relative position of the nut and the fastening bolt is adjusted to change the tensile force applied to the rubber body by the fastening bolt by taking the fastening plate as a supporting point, and the rubber body is embedded in the mounting gap in a pulling and fixing state to serve as a sealing structure.
Through the scheme, the invention at least obtains the following technical effects:
the water sealing packaging method of the sinking pipe end sealing door of the invention ensures that the end sealing door is fixed at the end port of the sinking pipe in a pulling way through the matching of the pulling lug and the pulling rod, provides pulling force for the end sealing door, and ensures that the pressure bearing pad and the V-shaped water sealing strip which are arranged between the end sealing door and the end port of the sinking pipe are extruded and deformed to play the role of sealing and stopping water. Simultaneously, the rubber body and the fastening plate are respectively installed from the two sides of the end sealing door in the gap between the adjacent two end sealing doors, the rubber body and the fastening plate are connected through the fastening bolt and the nut, the fastening plate is used as a fulcrum, the pulling force for pulling the fastening bolt is generated through the adjusting nut and acts on the rubber body, and the rubber body is pulled into the gap and generates elastic deformation to play a role in sealing and stopping water. The installation of end sealing door, the gap between end sealing door and the immersed tube port, the gap between the adjacent both ends sealing door all can oppress rubber stagnant water structure through the pulling force effect and realize sealing, remove traditional end sealing door from and adopt plane flitch or circular arc flitch welded loaded down with trivial details step, reduce sealed operating procedure, promote tunnel efficiency of construction. And the end sealing door and all water stopping parts are easy to disassemble and reuse.
Preferably, the cross section of the end sealing door is trapezoidal; the inclination angles of the side walls of the two adjacent end sealing doors are the same, so that the section of the mounting gap is isosceles trapezoid, and the rubber body is of a prism structure with an isosceles triangle section and is correspondingly embedded with the mounting gap in shape.
Preferably, the rubber body is attached with a facing steel plate, and the rubber body and the facing steel plate are vulcanized into a whole.
Preferably, the fastening bolt penetrates through the rubber body and is vertically connected with the armor plate.
Preferably, in the fourth step, after the hoisting rubber body is embedded into the installation gap, the pre-tightening pressing plate is installed on the front surface of the sealing door at the two adjacent ends, so that the pre-tightening pressing plate spans the installation gap to seal the rubber body in the installation gap.
Preferably, in the fifth step, a cushion block is further arranged between the fastening plate and the back surface of the end sealing door, and the cushion block is fixedly connected with the fastening plate.
Preferably, the end-sealing door is formed by integrally forming a sealing door and a steel beam.
The invention has the beneficial effects that:
according to the water stopping packaging method for the immersed tube end sealing door, the end sealing door is installed in a pulling and fixing mode, so that the pressure bearing pad and the V-shaped water stopping strip which are arranged between the end sealing door and the immersed tube end are pressed and deformed to play a role in sealing and stopping water; and then embedding a rubber body in a gap between the two adjacent end sealing doors in a pulling and fixing mode, forcing the rubber body to be extruded and deformed to generate a sealing and water-stopping effect in a mode of pulling the rubber body to be embedded into a narrower gap, and matching with an integrally formed end sealing door structure to realize the sealing of the immersed tube. Compared with the traditional welding and sealing process, the construction efficiency is greatly improved, the repeated utilization rate of the V-shaped water stop strip, the rubber body and other water stop pieces is high, and the material loss of immersed tube sealing construction is saved, so that the cost is reduced.
Drawings
Fig. 1 is a front view of an end seal door installed in a caisson port according to an embodiment of the invention.
FIG. 2 is a top cross-sectional view of the end seal door at A-A in FIG. 1.
FIG. 3 is a top cross-sectional view of the end seal door at B-B in FIG. 1.
Fig. 4 is a side sectional view of the end seal door at C-C in fig. 1.
FIG. 5 is a schematic view of a rear structure of a single end seal door.
FIG. 6 is a sectional top view of the door gap sealing assembly.
Fig. 7 is a schematic view of a pre-tightening pressure plate.
FIG. 8 is a schematic top view of a single end seal door.
Legend:
1, sealing a door at the end; 2, pulling the lug; 3, a pull rod; 4 a rubber body; 5 fastening the plate; 6 fastening the bolt; 7, a nut; 8, embedding part steel plates; 9, a pressure bearing pad; 10V type water stop strips; 11 a armor plate; 12 pre-tightening the pressing plate; 13 cushion blocks;
Detailed Description
The invention is further illustrated by the following figures and examples.
Example 1:
as shown in fig. 1 to 8, the present embodiment provides a water stop structure for an immersed tube end-sealed door 1, which includes a plurality of end-sealed doors 1, pull lugs 2, pull rods 3, rubber bodies 4, fastening plates 5, fastening bolts 6, nuts 7, embedded part steel plates 8, pressure-bearing pads 9 and V-shaped water stop strips 10;
the embedded part steel plate 8 is a plane steel plate, is arranged on the circumferential edge of the end opening of the immersed tube, and is used for providing a smooth veneer and bearing the pressure transmitted by the end-sealed door 1.
The pull lugs 2 serve as fulcrums of the installation end sealing door 1, four pull lugs 2 are arranged on each end sealing door 1, two pull lugs are arranged at the top of the inner wall of the immersed tube, two pull lugs are arranged at the bottom of the inner wall of the immersed tube, the end sealing door 1 is suspended to the installation position of the port of the immersed tube in a hanging mode, eight pull rods 3 are assembled, every two pull rods 3 are matched with one pull lug 2, and the upper end and the lower end of the end sealing door 1 are fixed to the port of the immersed tube in a pulling mode.
The bearing pad 9 and the V-shaped water stop strip 10 are arranged in a gap between the end sealing door 1 and the embedded part steel plate 8 in a cushioning mode, so that the pull force provided by the pull rod 3 to the end sealing door 1 acts on the bearing pad 9 and the V-shaped water stop strip 10, the V-shaped water stop strip 10 is stressed to be pressed on the surface of the embedded part steel plate 8 and deforms, and the effect of sealing and stopping water is achieved.
End seals door 1 for sealing door and girder steel an organic whole constitution promotion pressure-bearing effect and in this embodiment, and its cross-section is trapezoidal, makes the gap cross-section that forms between the adjacent both ends seal door 1 trapezoidal. The rubber body 4 in the shape of a triangular prism is embedded into the gap from the outer side of the immersed tube, then the fastening plates 5 are attached to the back of the adjacent door 1 at two ends from the inner side of the immersed tube across the gap, and each fastening plate 5 is connected with the rubber body 4 through the fastening bolt 6 and the nut 7. Through swivel nut 7 regulation fastening bolt 6 to the mounting plate 5 stretches out the rubber body 4 to the gap and draws for the fulcrum, makes rubber body 4 and both sides end seal door 1's lateral wall produce the extrusion, forces rubber body 4 to take place deformation and promotes sealed stagnant water effect.
In order to increase the distance between the fastening plate 5 and the rubber body 4 to provide a wider range for adjusting the fastening bolt 6, a spacer 13 is added between the fastening plate 5 and the back of the end sealing door 1, and the spacer 13 is fixedly connected with the fastening plate 5 to prevent dropping or losing.
The surface of the rubber body 4 facing the outer side of the immersed tube is attached with a cambered steel plate for protecting the rubber body 4 and preventing the rubber body 4 from being exposed on the surface between the adjacent two end sealing doors 1 to be damaged so as to influence the sealing effect. The one end of fastening bolt 6 runs through rubber body 4 and is connected with the cambered surface steel sheet is perpendicular, and fastening bolt 6 uses mounting plate 5 as the pulling force that the fulcrum provided to act on armor steel sheet 11, pushes away rubber body 4 by the cambered surface steel sheet again, makes rubber body 4 atress more even, avoids the condition that rubber body 4 atress is inhomogeneous and produce the gap and influence sealed effect. In this embodiment, the rubber body 4 and the armor plate 11 are integrally vulcanized.
Example 2:
as shown in fig. 1 to 8, this embodiment provides a water-stop sealing method for a immersed tube end-sealed door 1 based on embodiment 1, including the following steps:
the method comprises the following steps: and an embedded part steel plate 8 is arranged at the circumferential edge of the end opening of the immersed tube.
Step two: pressure bearing pads 9 and V-shaped water stop strips 10 are arranged at the top edge and the bottom edge of each end sealing door 1.
Step three: every end seals door 1 and matches four and draws ear 2 and eight pull rods 3, the mounted position that corresponds end and seals door 1 installs two and draws ear 2 in immersed tube inner wall top, two draw ears 2 are installed in immersed tube inner wall bottom, the one end of per two pull rods 3 is installed in same draw ear 2, the other end is installed in end and is sealed door 1, the length of adjusting pull rod 3 is sealed door 1 and is exerted the pulling force and accomplish to draw and close fixedly to the end to make pressure-bearing pad 9 and V type sealing strip 10 laminate in built-in fitting steel sheet 8, V type sealing strip 10 produces the gap between with sealed end seal door 1 and the immersed tube port under the pulling force effect of pull rod 3.
Step four: after installing whole end sealing door 1 piece by piece, can leave the installation clearance between adjacent both ends sealing door 1, because the cross-section of end sealing door 1 is trapezoidal, make the installation clearance be the trapezoidal gap of tightening gradually from the immersed tube outside to the immersed tube inboard, hoist and mount rubber body 4 in the immersed tube outside to with rubber body 4 from the immersed tube outside embedding installation clearance, cross adjacent both ends sealing door 1 installation with pretension clamp plate 12 again, avoid rubber body 4 to drop in the installation clearance with rubber body 4 pre-fixing.
Step five: the fastening plate 5 is installed on the inner side of the immersed tube, the fastening plate 5 stretches across the installation gap and is respectively abutted to the back faces of the two end sealing doors 1, and a cushion block 13 is additionally arranged between the fastening plate 5 and the back faces of the two end sealing doors 1 and used for heightening the fastening plate 5 to increase the distance between the fastening plate 5 and the rubber body 4.
Step six: one end of a fastening bolt 6 is vertically fixed on a protective steel plate 11 on the outer surface of the rubber body 4, the other end of the fastening bolt penetrates through the mounting gap and the fastening plate 5, a nut 7 is sleeved at one end of the fastening bolt 6 protruding out of a through hole of the fastening plate 5, the relative position of the nut 7 and the fastening bolt 6 is adjusted to change the pulling force applied to the rubber body 4 by the fastening bolt 6 by taking the fastening plate 5 as a supporting point, and the rubber body 4 is embedded in the mounting gap in a pulling and fixing state to serve as a sealing structure.
Various technical features in the above embodiments may be arbitrarily combined as long as there is no conflict or contradiction in the combination between the features, but is limited to the space and is not described one by one.
The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (7)

1. A water-stopping packaging method for a sinking pipe end sealing door is characterized by comprising the following steps: the device comprises a plurality of end seal doors, pull lugs, pull rods, rubber bodies, fastening plates, fastening bolts, nuts, embedded part steel plates, pressure bearing pads and V-shaped water stop strips; the embedded part steel plate is installed at the end opening of the immersed tube, the pull lug is fixedly installed on the inner wall of the immersed tube, the end sealing doors are installed at the end opening of the immersed tube through the pull lug and the pull rod, the pressure bearing pad and the V-shaped water stop strip pad are arranged between the end sealing doors and the embedded part steel plate, the rubber body is embedded between the adjacent two end sealing doors from the outer side of the immersed tube, the fastening plate is abutted against the back surfaces of the adjacent two end sealing doors from the inner side of the immersed tube, and the fastening bolt and the nut are matched to fixedly pull the rubber body and the fastening plate; also comprises the following steps:
the method comprises the following steps: an embedded part steel plate is arranged at the circumferential edge of the end opening of the immersed tube;
step two: a pressure bearing pad and a V-shaped water stop strip are arranged at the edge of each end sealing door;
step three: mounting a pull lug on the inner wall of the immersed tube, wherein a plurality of end sealing doors are erected at the end port of the immersed tube in parallel, each end sealing door is connected with the pull lug through a pull rod, so that a pressure bearing pad and a V-shaped water stop strip are attached to an embedded part steel plate, and the V-shaped water stop strip is deformed under the action of the pulling force of the pull rod and is used for sealing a gap between the end sealing door and the end port of the immersed tube;
step four: hoisting a rubber body outside the immersed tube to enable the rubber body to be embedded into an installation gap between the adjacent two end sealing doors from the outside of the immersed tube;
step five: mounting a fastening plate on the inner side of the immersed tube, and enabling the fastening plate to cross the mounting gap and respectively abut against the back surfaces of the sealing doors at the two ends;
step six: one end of the fastening bolt is fixed on the rubber body, the other end of the fastening bolt penetrates through the mounting gap and the fastening plate, a nut is sleeved at one end, protruding out of the through hole of the fastening plate, of the fastening bolt, the relative position of the nut and the fastening bolt is adjusted to change the tensile force applied to the rubber body by the fastening bolt by taking the fastening plate as a supporting point, and the rubber body is embedded in the mounting gap in a pulling and fixing state to serve as a sealing structure.
2. The water sealing method for end-sealing doors of sinking pipe of claim 1, wherein the cross section of the end-sealing door is trapezoidal; the inclination angles of the side walls of the two adjacent end sealing doors are the same, so that the section of the mounting gap is isosceles trapezoid, and the rubber body is of a prism structure with an isosceles triangle section and is correspondingly embedded with the mounting gap in shape.
3. The method of claim 1, wherein the rubber body is bonded with a facing steel plate, and the rubber body and the facing steel plate are vulcanized together.
4. The water sealing method for a sinking pipe end sealing door according to claim 3, wherein the fastening bolt penetrates through the rubber body and is vertically connected with the armor plate.
5. The water-stopping sealing method for the immersed tube end-sealed door according to claim 1, wherein in the fourth step, after the hoisting rubber body is embedded into the installation gap, the pre-tightening pressing plate is installed on the front surface of the adjacent two end-sealed doors, so that the pre-tightening pressing plate spans the installation gap to seal the rubber body in the installation gap.
6. The water sealing method for the immersed tube end sealing door according to claim 1, wherein in the fifth step, a cushion block is further arranged between the fastening plate and the back surface of the end sealing door, and the cushion block is fixedly connected with the fastening plate.
7. The method of claim 1, wherein the end-sealing door is integrally formed by a sealing door and a steel beam.
CN202110655005.8A 2021-06-11 2021-06-11 Water-stopping packaging method for immersed tube end sealing door Active CN113323020B (en)

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CN202110655005.8A CN113323020B (en) 2021-06-11 2021-06-11 Water-stopping packaging method for immersed tube end sealing door

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Application Number Priority Date Filing Date Title
CN202110655005.8A CN113323020B (en) 2021-06-11 2021-06-11 Water-stopping packaging method for immersed tube end sealing door

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CN113323020B CN113323020B (en) 2023-03-10

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201762691U (en) * 2010-07-26 2011-03-16 上海华滋奔腾防汛设备制造有限公司 Sealing structure for flood control walls
CN203200722U (en) * 2013-04-17 2013-09-18 安徽省交通勘察设计院有限公司 Self-floating stoplog access door
CN111894037A (en) * 2020-06-18 2020-11-06 中交第二航务工程局有限公司 Immersed tube prefabricated end seal door installation construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201762691U (en) * 2010-07-26 2011-03-16 上海华滋奔腾防汛设备制造有限公司 Sealing structure for flood control walls
CN203200722U (en) * 2013-04-17 2013-09-18 安徽省交通勘察设计院有限公司 Self-floating stoplog access door
CN111894037A (en) * 2020-06-18 2020-11-06 中交第二航务工程局有限公司 Immersed tube prefabricated end seal door installation construction method

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