CN106917631B - Sealing device for underwater supporting type tunnel connecting section - Google Patents
Sealing device for underwater supporting type tunnel connecting section Download PDFInfo
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- CN106917631B CN106917631B CN201710230184.4A CN201710230184A CN106917631B CN 106917631 B CN106917631 B CN 106917631B CN 201710230184 A CN201710230184 A CN 201710230184A CN 106917631 B CN106917631 B CN 106917631B
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- lower sealing
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- rubber
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- 238000007789 sealing Methods 0.000 title claims abstract description 150
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 111
- 239000010959 steel Substances 0.000 claims abstract description 111
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000010276 construction Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 3
- 229910001341 Crude steel Inorganic materials 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 241000287828 Gallus gallus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- 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
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- 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
- E21D11/381—Setting apparatus or devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a sealing device for a supporting type tunnel connecting section in water, and belongs to the technical field of underwater structural engineering. The vertical column base is positioned in the middle of the bottoms of the two sides of the upper sealing ring, the side surface of the vertical column base is firmly welded with the outer side of the upper sealing ring, the vertical column is connected with the vertical column base through bolts, a hoist is arranged at the top of the vertical column, a cross beam is arranged between the tops of the two vertical columns, a lifting ring is arranged in the middle of the cross beam, two steel plates A and two steel plates B are respectively arranged at the tops of the two sides of the lower sealing ring, one side of each steel plate A and one side of each steel plate B are firmly welded with the outer side of the lower sealing ring, a round hole is formed in the middle of each steel plate A, a U-shaped groove with a downward opening is formed in the bottom of each steel plate B, a rubber strip is arranged at the bottom of each U-shaped groove, two ends of each rubber strip are connected with each steel plate B through bolts, and a connecting section pouring construction space is provided under the protection of the sealing device; the sealing device is convenient to operate; the sealing device can be recycled.
Description
Technical Field
The invention relates to a sealing device for a supporting type tunnel connecting section in water, and belongs to the technical field of underwater structural engineering.
Background
The immersed tube method is a relatively mature underwater tunnel construction method, and the use history of the immersed tube method tunnel has been 100 years. In the past, immersed tube tunnels were buried in underwater riverbed or seabed soil layers. If the sinking pipe tunnel is partially higher than the river bed, the excavation amount of the foundation trench and the sinking pipe length can be reduced, and the construction cost is effectively reduced. For example, the hong Kong crossing highway immersed tunnel and Greeplar-Akesen immersed tunnel in China all have pipe sections which are 2-4 m higher than the river bed locally.
If the tunnel line is close to the coast and is locally provided with a deep pool, if the tunnel is to be built below the seabed, the embedded depth of the tunnel is larger, the shore section close to one side of the deep pool is long, and the whole engineering cost is higher; if a 'supporting tunnel' is adopted in a deep pool section, namely a closed reinforced concrete structure is arranged on a plurality of supporting structures, the supporting structures are higher than the seabed surface, the closed reinforced concrete structure is all positioned in sea water, the distance between the top surface of the closed reinforced concrete structure and the sea level meets the navigation requirement of a channel where an engineering is positioned, the 'supporting tunnel' technical scheme is feasible, the construction cost of the 'supporting tunnel' is lower than that of a fully buried tunnel, and the construction difficulty and the construction risk of the 'supporting tunnel' are greatly reduced.
The closed reinforced concrete structure comprises prefabricated pipe sections and connecting sections, wherein the prefabricated pipe sections are manufactured in a dry dock on the shore, the prefabricated pipe sections are arranged on two or more supporting structures through floating transportation and sinking, a gap of about 2m is reserved between the front prefabricated pipe sections and the rear prefabricated pipe sections along a line, and the connecting sections between the front prefabricated pipe sections and the rear prefabricated pipe sections need to be poured in situ under water. In order to provide conditions for pouring and construction of the underwater connecting section, sealing devices are required to be arranged around the connecting section.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides the sealing device for the underwater supporting type tunnel connecting section, which has the advantages of simple structure, reasonable design and convenience in use.
In order to achieve the above purpose, the invention adopts the following technical scheme: the steel wire rope type steel wire rope comprises an upper sealing ring, a lower sealing ring, an upright post base, a thick steel wire rope, a hoist, a beam, an A steel plate, a B steel plate and a thin steel wire rope, wherein a rubber strip, a rubber water stop belt and a rubber plate are arranged in the middle of the A steel plate; the inner side of the lower sealing ring, which is positioned at the connecting section, is provided with an A water inlet and outlet hole; firstly, the upper sealing ring and the lower sealing ring are primarily pulled together through a hoist and a crude steel wire rope, secondly, water positioned on the connecting section is discharged through a water inlet and outlet hole of the lower sealing ring A, the outside water pressure of the upper sealing ring and the lower sealing ring is utilized to enable a rubber water stop belt between the upper sealing ring and the prefabricated pipe sections before and after the connecting section, a rubber water stop belt between the lower sealing ring and the prefabricated pipe sections before and after the connecting section, and sealing plates between the upper sealing ring and the lower sealing ring to press and seal water, and the connecting section construction is carried out under the protection of the upper sealing ring and the lower sealing ring.
Preferably, the rubber plate is arranged on the contact end surface of the upper sealing ring and the lower sealing ring, rubber water stops are respectively arranged between the upper sealing ring and the front and rear prefabricated pipe sections and between the lower sealing ring and the front and rear prefabricated pipe sections, and the rubber water stops are provided with two modes: the first mode is that rubber water stops are arranged at the inner sides of the front end and the rear end of the upper sealing ring and the lower sealing ring, the positions of the rubber water stops of the upper sealing ring are consistent with those of the rubber water stops of the lower sealing ring, meanwhile, the side surfaces of the rubber plates are in vulcanization connection with the bottom surfaces of the rubber water stops, and the rubber water stops are respectively bonded with the inner sides of the upper sealing ring and the lower sealing ring or are connected through bolts; the second mode is that annular rubber water stops are respectively arranged at two ends of the prefabricated pipe section, and the rubber water stops are bonded with the prefabricated pipe section L or connected through bolts.
Preferably, the upper sealing ring and the lower sealing ring adopt a closed steel structure, C water inlet and drain holes are formed in the bottoms of two sides of the upper sealing ring, D water inlet and drain holes are formed in the bottom of the lower sealing ring, and nominal volume weights of the upper sealing ring and the lower sealing ring can be adjusted through water injection and drainage.
Preferably, the upright posts adopt a vertical sectional assembly structure, each section of upright post is formed by welding four angle steels, a top connecting steel plate, a bottom connecting steel plate and a plurality of batten plates, and each section of upright post is connected by bolts.
Preferably, after the construction of the connecting section is finished, the pretightening force of the rough steel wire rope is relieved, the rubber strip on the steel plate B is broken or falls off through the fine steel wire rope, the rough steel wire rope on the same side with the steel plate B is manually moved downwards to enable the pin bolt to leave the U-shaped groove, finally, the water injection and pressurization of the drain pipe A on the inner side of the lower sealing ring are carried out to enable the lower sealing ring and the upper sealing ring to be separated from the connecting section, the water is drained from the C water inlet and drain hole of the upper sealing ring and the D water inlet and drain hole of the lower sealing ring, the upper sealing ring and the lower sealing ring are floated, and the upper sealing ring and the lower sealing ring are lifted out of the water by adopting lifting equipment.
After the structure is adopted, the invention has the beneficial effects that: the sealing device for the underwater supporting type tunnel connecting section has the following beneficial effects:
(1) Providing a connection section pouring construction space under the protection of the sealing device;
(2) The sealing device is convenient to operate;
(3) The sealing device can be recycled;
(4) When the sealing device is arranged on the prefabricated pipe section, the deformation stress of the prefabricated pipe section is small.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a seal device for a water-borne tunnel junction section according to the present invention;
FIG. 2 is a schematic longitudinal section view of a sealing device for a supporting tunnel junction section in water;
FIG. 3 is a schematic view of an upper seal ring in elevation
FIG. 4 is a schematic front view of an upper seal ring provided by the present invention;
FIG. 5 is a middle cross-sectional view of an upper seal ring provided by the present invention;
FIG. 6 is a partial cross-sectional view of the bottom end surface of the upper seal ring provided by the present invention;
FIG. 7 is a schematic view of a lower seal ring in elevation provided by the present invention;
FIG. 8 is a schematic front view of a lower seal ring provided by the present invention;
FIG. 9 is a front view schematically showing a column base according to the present invention
FIG. 10 is a cross-sectional view of a column base provided by the present invention;
FIG. 11 is a schematic view of an A steel plate provided by the invention;
FIG. 12 is a schematic view of a B-plate according to the present invention;
FIG. 13 is a schematic view of a column according to the present invention;
FIG. 14 is a top view of FIG. 13;
FIG. 15 is a partial assembly view of the thick wire rope, cotter, column base, etc. provided by the present invention;
FIG. 16 is a schematic view of a rubber water stop and connection according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1-16, the steel wire rope type sealing device comprises an upper sealing ring 1, a lower sealing ring 2, a column 3, a column base 4, a thick steel wire rope 5, a hoist 6, a cross beam 7, an A steel plate 8, a B steel plate 9, a thin steel wire rope 10, a lifting ring 11, a rubber strip 13, a chicken heart ring 14, a pin 15, a rubber plate 16, a rubber water stop 17 and an A water inlet and drain hole 18; the upper sealing ring 1 is arranged at the top of the connecting section X, the lower sealing ring 2 is arranged at the bottom of the connecting section X, the upright post base 4 is arranged in the middle of two sides of the bottom of the upper sealing ring 1, one side of the upright post base 4 is firmly welded with the outer side steel plates of the upper sealing ring 1, the upright posts 3 are connected with the upright post base 4 through bolts, the tops of the two upright posts 3 are respectively provided with a hoist 6, a cross beam 7 is arranged between the tops of the two upright posts 3, a lifting ring 11 is arranged in the middle of the cross beam, two steel plates 8 are arranged in the middle of the left side top of the lower sealing ring 2, two steel plates 9 are arranged in the middle of the right side top of the lower sealing ring 2, one side of each steel plate 8 and one side of each steel plate 9 are firmly welded with the outer side steel plates of the lower sealing ring 2, a round hole is formed in the middle of each steel plate 8, a U-shaped groove 12 is formed in the bottom of each steel plate 9, one rubber strip 13 is arranged at the bottom of each U-shaped groove 12, two ends of each rubber strip 13 are connected with each steel plate 9 through bolts, the bolts are arranged at two sides of the U-shaped grooves along the direction of the U-shaped groove, a certain distance is arranged between the two steel plates 8, a certain distance is arranged along the line square line, a certain distance is arranged between the two steel plates 9, a chicken heart ring 14 is arranged, a bottom of the wire rope 5 is arranged, a steel wire rope is arranged, one end 14 is fixedly passes through a steel wire rope 14, and the other passes through one steel wire rope 15 and the other passes through two steel wire rope 15 and the other passes through one steel wire rope 15 and the other through two steel wire rope 15 and the round pin 13 and the other through the round pin 13. The inner sides of the upper sealing ring 1 and the lower sealing ring 2 are provided with A water inlet and drainage holes 18. The bottom end face of the upper sealing ring 1 and the top end face of the lower sealing ring 2 are respectively provided with a rubber plate 16, a rubber water stop belt 17 is arranged between the upper sealing ring 1 and the front and rear prefabricated pipe sections L, a rubber water stop belt 17 is arranged between the lower sealing ring 2 and the front and rear prefabricated pipe sections L, and the rubber water stop belt has two modes: the first mode is that the inner sides of the front end and the rear end of the upper sealing ring 1 and the lower sealing ring 2 are respectively provided with a rubber water stop belt 17, the position of the rubber water stop belt 17 of the upper sealing ring 1 is consistent with that of the rubber water stop belt 17 of the lower sealing ring 2, the side surface of the rubber plate 16 is in vulcanization connection with the bottom surface of the rubber water stop belt 17, and the rubber water stop belt 17 is respectively connected with the upper sealing ring 1 and the lower sealing ring 2 through bolts; the second mode is that two ends of the prefabricated pipe section L are respectively provided with an annular rubber water stop belt 17, and the rubber water stop belts 17 are connected with the prefabricated pipe section L through bolts; the upper sealing ring 1 and the lower sealing ring 2 are of closed steel structures, C water inlet and drain holes 20 are formed in the bottoms of two sides of the upper sealing ring 1, and D water inlet and drain holes 21 are formed in the bottoms of the lower sealing ring 2; the upright posts 3 adopt a vertical sectional assembly structure, each section of upright post is formed by welding four angle steels, a top connecting steel plate, a bottom connecting steel plate and a plurality of lacing plates, and each section of upright post is connected by bolts.
The upper sealing ring 1 and the lower sealing ring 2 are primarily pulled and closed through the hoist 6 and the crude steel wire rope 5, a rubber water stop belt 17 between the upper sealing ring 1 and the prefabricated pipe sections L around the connecting section X, a rubber water stop belt 17 between the lower sealing ring 2 and the prefabricated pipe sections L around the connecting section X, a rubber plate 16 between the upper sealing ring 1 and the lower sealing ring 2 are used for primarily compacting water, water positioned at the connecting section X is discharged through an A water inlet and outlet hole 18 of the lower sealing ring, the outer side water pressure of the upper sealing ring 1 and the lower sealing ring 2 is utilized to enable the rubber water stop belt 17 between the upper sealing ring 1 and the prefabricated pipe sections L around the connecting section X, the rubber water stop belt 17 between the lower sealing ring 2 and the prefabricated pipe sections L around the connecting section X, and the rubber plate 16 between the upper sealing ring 1 and the lower sealing ring 2 to be compacted, and pouring construction of the connecting section X is carried out under the protection of the upper sealing ring 1 and the lower sealing ring 2.
After the construction of the connecting section X, the pretightening force of the crude steel wire rope 5 is relieved, the rubber strip 13 on the steel plate B is broken or falls off through the fine steel wire rope 10, the crude steel wire rope 5 on the same side with the rubber strip 13 is manually moved downwards to enable the bolt 15 to leave the U-shaped groove, the water is injected and pressurized through the water inlet and outlet hole 18 of the lower sealing ring 2A to enable the upper sealing ring 1 and the lower sealing ring 2 to be separated from the connecting section X, the upper sealing ring 1 and the lower sealing ring 2 are enabled to float by draining water from the upper sealing ring 1 and the lower sealing ring 2, and the lifting equipment is adopted to lift the upper sealing ring 1 and the lower sealing ring 2 out of the water surface
Examples:
as shown in fig. 1-13, the outer radius of the prefabricated pipe section L is 3.5m, the outer radius of the connecting section X is 3.5m, the distance between the prefabricated pipe section L and the connecting section X in the line direction is 2.0m (the connecting section X is 2.0m along the line length), the outer radius r1=4.10 m of the upper sealing ring and the lower sealing ring, the inner radius r2=3.56 m (3.5m+0.06 m-thickness after the rubber water stop is compacted), the height of the rubber water stop is 135mm, the compression thickness of the rubber water stop is 75mm, the net height h0=3500mm+100mm=3600 mm on the inner side of the upper sealing ring and the lower sealing ring (3500 mm-cross-section height after the primary compaction of the rubber water stop is 100mm, 3600mm comprises the thickness of a rubber plate, the upper sealing ring and the lower sealing ring end face are started to contact after the primary compression of 35mm on the upper sealing ring top rubber water stop, the sealing ring is 6.0m along the line direction, the radial thickness h1=500 mm of the sealing ring is formed by welding an outer side steel plate 131, an inner side steel plate 132, two annular steel plates 134, two annular steel plates 135, an annular steel plates 136 and an annular steel plate 133X 10mm and an annular steel plate 133X 10 is formed by welding a plurality of annular steel plates 133, and an annular steel plate 133X 10 is 10m, and an annular steel plate 133 is formed by the geometric dimensions of the annular steel plate 133, and an annular steel plate 133 is 10X 2 and an annular steel plate 133 is 10m, and a steel plate 133 is a steel plate and an annular steel plate and a steel plate is formed. The upper seal ring bottom and lower seal ring top structures are shown in fig. 6, and the rubber sheet 16 has a thickness of 100mm. The spacing between the annular steel plates 133 in the line direction was 350mm, the geometric dimensions of the end face steel plates 136 were 480mm×6000mm, and the thickness was 10mm.
Fig. 9 is a schematic view of a column base 4, which is formed by welding 1 steel plate 41, 2 steel plates 42 and 2 steel plates 43, wherein the thickness of the steel plates 41 and 42 is 30mm, one side of the steel plate 42 is firmly welded with an upper sealing ring, the steel plate 41 is arranged above the left side of the steel plate 42, a round hole 44 is arranged in the middle of the steel plate 41, and the diameter of the round hole is 40mm.
The geometric dimensions of the steel plates A and 8 are shown in figure 10, the thickness of the steel plates A and 8 is 30mm, the right side of the steel plates A and 8 are firmly welded with the lower sealing ring, the distance between the two steel plates A and 8 is 50mm, a round hole is arranged in the middle of the steel plates A and 8, and the diameter of the round hole is 80mm.
The geometric dimension of the B steel plate 9 is shown in fig. 11, the thickness of the steel plate is 30mm, the left side of the B steel plate 9 is firmly welded with the lower sealing ring, the bottom of the B steel plate 9 is provided with a downward U-shaped groove, the top of the U-shaped groove is semicircular, and the width of the groove is 80mm.
The upright post adopts a vertical sectional assembly structure, each section of upright post is formed by welding four angle steels 32, a connecting steel plate 31 and a plurality of lacing plates 33, each section of upright post is connected by bolts, the structure of each section of upright post 3 is shown in fig. 12, the dimension of the connecting steel plate 31 is 700mm multiplied by 700mm, the thickness is 20mm, a round hole is formed in the center of the connecting steel plate 31, and the diameter of the round hole is 60mm. The angle steel 32 is L200 multiplied by 20, and the length of the angle steel 32 is 2000mm. The sizes of the batten plates 33 are 500×350, the thickness of the steel plate is 12mm, and the spacing between the batten plates 33 is 600mm.
The foregoing is merely illustrative of the present invention and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a supporting tunnel junction section sealing device in aquatic which characterized in that: the steel wire rope type steel wire rope comprises an upper sealing ring, a lower sealing ring, an upright post base, a thick steel wire rope, a hoist, a beam, an A steel plate, a B steel plate and a thin steel wire rope, wherein a rubber strip, a rubber water stop belt and a rubber plate are arranged in the middle of the A steel plate; the inner side of the lower sealing ring, which is positioned on the connecting section, is provided with an A water inlet and drainage hole.
2. The submersible support tunnel junction seal of claim 1, wherein: the rubber plate is arranged on the contact end face of the upper sealing ring and the lower sealing ring, rubber water stops are respectively arranged between the upper sealing ring and the front and rear prefabricated pipe sections and between the lower sealing ring and the front and rear prefabricated pipe sections, and the rubber water stops are in two modes: the first mode is that rubber water stops are arranged at the inner sides of the front end and the rear end of the upper sealing ring and the lower sealing ring, the positions of the rubber water stops of the upper sealing ring are consistent with those of the rubber water stops of the lower sealing ring, meanwhile, the side surfaces of the rubber plates are in vulcanization connection with the bottom surfaces of the rubber water stops, and the rubber water stops are respectively bonded with the inner sides of the upper sealing ring and the lower sealing ring or are connected through bolts; the second mode is that annular rubber water stops are respectively arranged at two ends of the prefabricated pipe section, and the rubber water stops are bonded with the prefabricated pipe section L or connected through bolts.
3. The submersible support tunnel junction seal of claim 1, wherein: the upper sealing ring and the lower sealing ring adopt a closed steel structure, C water inlet and drain holes are formed in the bottoms of two sides of the upper sealing ring, D water inlet and drain holes are formed in the bottom of the lower sealing ring, and nominal unit weights of the upper sealing ring and the lower sealing ring can be adjusted through water injection and drainage.
4. The submersible support tunnel junction seal of claim 1, wherein: the upright post adopts a vertical sectional assembly structure, each section of upright post is formed by welding four angle steels, a top connecting steel plate, a bottom connecting steel plate and a plurality of lacing plates, and each section of upright post is connected by bolts.
5. The submersible support tunnel junction seal of claim 1, wherein: after the construction of the connecting section is finished, the pretightening force of the rough steel wire rope is relieved, the rubber strip on the steel plate B is broken or falls off through the fine steel wire rope, the rough steel wire rope on the same side of the steel plate B is manually moved downwards to enable the pin bolt to leave the U-shaped groove, finally, the water injection and pressurization of the drain pipe A on the inner side of the lower sealing ring are carried out to enable the lower sealing ring and the upper sealing ring to be separated from the connecting section, the water is drained from the C water inlet and drain hole of the upper sealing ring and the D water inlet and drain hole of the lower sealing ring, the upper sealing ring and the lower sealing ring are floated, and the upper sealing ring and the lower sealing ring are lifted out of the water by adopting lifting equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710230184.4A CN106917631B (en) | 2017-04-10 | 2017-04-10 | Sealing device for underwater supporting type tunnel connecting section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710230184.4A CN106917631B (en) | 2017-04-10 | 2017-04-10 | Sealing device for underwater supporting type tunnel connecting section |
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| CN106917631A CN106917631A (en) | 2017-07-04 |
| CN106917631B true CN106917631B (en) | 2023-06-30 |
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| CN108978688A (en) * | 2018-07-23 | 2018-12-11 | 中交航局第三工程有限公司 | Facilitate hood type waling and the application of installing and dismounting |
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