CN110616742B - Large prefabricated part prestress construction drag reduction water tank and use method - Google Patents
Large prefabricated part prestress construction drag reduction water tank and use method Download PDFInfo
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- CN110616742B CN110616742B CN201910880908.9A CN201910880908A CN110616742B CN 110616742 B CN110616742 B CN 110616742B CN 201910880908 A CN201910880908 A CN 201910880908A CN 110616742 B CN110616742 B CN 110616742B
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- side plate
- water tank
- pipe joint
- plate assembly
- drag reduction
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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
- E02D29/07—Tunnels or shuttering therefor preconstructed as a whole or continuously made, and moved into place on the water-bed, e.g. into a preformed trench
Abstract
The invention relates to the technical field of traffic construction, in particular to a large prefabricated part prestress construction drag reduction water tank which comprises a top plate assembly arranged at the top of the drag reduction water tank, side plate assemblies I arranged at two sides of the drag reduction water tank, side plate assemblies II arranged at two ends of the drag reduction water tank and a bottom plate assembly arranged at the bottom of the drag reduction water tank, wherein the top plate assembly, the side plate assemblies I and the side plate assemblies II are fixedly connected with the bottom plate assembly, and a sealed water tank which can accommodate and sufficiently float a immersed tube tunnel pipe joint is formed. According to the invention, the top plate assembly, the side plate assemblies I at two sides, the side plate assemblies II at two ends and the bottom plate assembly are fixedly connected to form a sealed water tank which is enough to float the immersed tube tunnel pipe joint, when the prestress of the immersed tube tunnel pipe joint is applied, the immersed tube tunnel pipe joint is in a state to be floated in the sealed water tank by means of the buoyancy of water, at the moment, the friction resistance is negligible, and the applied prestress can be effectively transmitted to any part of the immersed tube tunnel pipe joint, so that the ideal state of applying the prestress is achieved.
Description
Technical Field
The invention relates to the technical field of traffic construction, in particular to a large prefabricated part prestress construction drag reduction water tank and a use method thereof.
Background
Along with the development of national science and technology, large and ultra-large immersed tube tunnels are continuously adopted in cross-sea bridge engineering, prefabricated reinforced concrete tube sections of the large and ultra-large immersed tube tunnels are about 180 meters long and weigh 6-7 ten thousand tons, the tube sections are generally designed into post-tensioned prestressing box structures, and the tube sections are generally prefabricated in segments due to the large length of the tube sections, and then prestressing force is applied to carry out combination. In the prestressing force applying process, because the weight of the pipe joint is large, the friction resistance between the pipe joint and a prefabricated site is also large, so that the applied prestressing force can not fully act on the pipe joint due to the existence of the friction resistance, when the friction resistance disappears (in a floating state), the pipe joint can shrink under the prestressing force of the reinforcing steel bar, and the prestressing force originally applied after the shrinkage can not reach a design expected value, so that the normal use and the service life of the pipe joint are affected.
Disclosure of Invention
The invention provides a drag reduction water tank for large prefabricated part prestress construction and a use method thereof, which are characterized in that a sealing water tank which is enough to float a immersed tube tunnel pipe joint is formed by fixedly connecting a top plate assembly, side plate assemblies I at two sides, side plate assemblies II at two ends and a bottom plate assembly, when prestress of the immersed tube tunnel pipe joint is applied, the immersed tube tunnel pipe joint is in a state to be floated in the sealing water tank by means of buoyancy of water, at the moment, friction resistance is negligible, and the applied prestress can be effectively transmitted to any part of the immersed tube tunnel pipe joint to achieve an ideal state of applying prestress.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a large-scale prefabricated component prestressing force construction drag reduction basin, includes the roof subassembly of locating drag reduction basin top, locates the curb plate subassembly first of drag reduction basin both sides, locates the curb plate subassembly second of drag reduction basin both ends and locates the bottom plate subassembly of drag reduction basin bottom, roof subassembly, curb plate subassembly first, curb plate subassembly second and bottom plate subassembly fixed connection, and the shaping is equipped with can hold and be enough to float the sealed basin that rises immersed tube tunnel tube coupling.
Further, the top plate assembly comprises a pull rod, and two ends of the pull rod are fixedly connected with the side plate assemblies on two sides of the drag reduction water tank through pull rod nuts respectively.
Further, the first side plate component comprises a template panel, a template transverse beam and a template back frame beam, and the template panel, the template transverse beam and the template back frame beam are fixedly connected through bolts.
Furthermore, a limit pipe barrel is arranged between the upper part of the template panel and the upper part of the immersed tube tunnel pipe joint, a sealing end side plate is arranged between the lower part of the template panel and the lower part of the immersed tube tunnel pipe joint, and the sealing end side plate is connected with the immersed tube tunnel pipe joint through a P-type rubber water stop belt in a water leakage-proof manner.
Furthermore, the second side plate assembly comprises sealing templates arranged at two ends of the drag reduction water tank, and the sealing templates are fixedly and hermetically connected with the first side plate assembly and the bottom plate assembly respectively and are connected with each other through the P-type rubber water stop belt in a water leakage preventing manner.
Further, the bottom plate assembly comprises a terrace, support section steel and a bottom steel mould, wherein the support section steel is fixed at the top of the terrace, the bottom steel mould is fixed at the top of the support section steel, and two sides of the terrace are fixedly connected with side plate assemblies arranged at two sides of the drag reduction water tank respectively.
Furthermore, the two sides of the terrace are respectively provided with terrace beams, and the terrace beams and side plate assemblies on the two sides of the drag reduction water tank are arranged in a guiding and limiting mode.
Furthermore, the terrace is connected with the first side plate assemblies on two sides of the drag reduction water tank in a water leakage-proof manner through the P-type rubber water stop belt.
Furthermore, an end bottom baffle is arranged between the terrace and the immersed tube tunnel pipe joint, and the end bottom baffle is connected with the immersed tube tunnel pipe joint through a P-type rubber water stop belt in a water leakage-proof manner.
The application method of the drag reduction water tank for the prestress construction of the large prefabricated part comprises the following steps:
1) After the whole pipe joint is completely prefabricated and the strength reaches the prestress application strength, removing a bottom steel mould and supporting section steel within the range of 1.5 meters at the two ends of the pipe joint, fixing an end bottom baffle plate connected with a P-type rubber water stop belt on a terrace, completing the installation of a bottom plate assembly at the bottom of the drag reduction water tank, and enabling the immersed tunnel pipe joint to be connected with the end bottom baffle plate through the P-type rubber water stop belt in a water leakage prevention manner;
2) The method comprises the steps of fixedly connecting a template panel, a template transverse beam and a template back frame beam through bolts to complete installation of a side plate assembly I of the side part of the drag reduction water tank, and fixing an end-capped side plate on the template panel;
3) The first side plate component is lifted by a crane and is arranged on two sides of the immersed tube tunnel pipe section and is in spacing adhesion with a terrace beam on a terrace, the upper part of the template panel and the upper part of the immersed tube tunnel pipe section are separated by a spacing pipe barrel, and the immersed tube tunnel pipe section and the end-capped side plate are connected by a P-type rubber water stop belt in a water leakage prevention manner;
4) Lifting the second side plate assembly through a crane, placing the second side plate assembly at two ends of a pipe joint of the immersed tunnel, fixedly and hermetically connecting the second side plate assembly with the first side plate assembly and the bottom plate assembly, and performing water leakage prevention connection through a P-type rubber water stop belt;
5) The first side plate assemblies on two sides are tightly and fixedly connected under the action of the pull rod nut through the pull rod, so that the upper part of the first side plate assemblies is reinforced;
6) Injecting water into the gap between the template panel and the immersed tube tunnel pipe joint, wherein the height of the injected water is calculated in advance, and the buoyancy of the water is close to the gravity of the immersed tube tunnel pipe joint;
7) When the immersed tube tunnel pipe joint is in a state to be floated, pre-stressing the immersed tube tunnel pipe joint;
8) And (5) evacuating water after the prestressing force is applied, and removing the top plate assembly, the side plate assembly I and the side plate assembly II.
The invention has the beneficial effects that:
the invention adopts the structure arrangement, the sealing water tank which is enough to float the immersed tube tunnel pipe joint is formed by fixedly connecting the top plate component, the side plate component I at two sides, the side plate component II at two ends and the bottom plate component, when the prestress of the immersed tube tunnel pipe joint is applied, the immersed tube tunnel pipe joint is in a state to be floated in the sealing water tank by means of the buoyancy of water, at the moment, the friction resistance is negligible, the applied prestress can be effectively transmitted to any part of the immersed tube tunnel pipe joint, and the ideal state of applying the prestress is achieved.
Drawings
FIG. 1 is a front elevational view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is an enlarged view of the position C in FIG. 2;
FIG. 4 is an enlarged view of the position D of FIG. 2;
FIG. 5 is a top view of the overall structure of the present invention;
FIG. 6 is an enlarged view of the position E in FIG. 5;
FIG. 7 is a cross-sectional view of FIG. 1 taken at the A-A position;
FIG. 8 is an enlarged view of the F position of FIG. 7;
FIG. 9 is a sectional view of the B-B position of FIG. 2;
FIG. 10 is an enlarged view of the G position of FIG. 9;
fig. 11 is an enlarged view of the H position in fig. 9.
1. A terrace; 2. a terrace beam; 3. supporting the section steel; 4. a bottom steel mould; 5. sinking pipe tunnel pipe joint; 6. a template panel; 7. a template transverse beam; 8. a template back frame beam; 9. a pull rod nut; 10. a limiting tube barrel; p-type rubber water stop; 12. a pull rod; 13. end bottom baffle; 14. and end-capped side plates.
Detailed Description
The technical scheme of the invention is described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 11, the large prefabricated part prestress drag reduction water tank comprises a top plate assembly arranged at the top of the drag reduction water tank, side plate assemblies I arranged at two sides of the drag reduction water tank, side plate assemblies II arranged at two ends of the drag reduction water tank and a bottom plate assembly arranged at the bottom of the drag reduction water tank, wherein the top plate assembly, the side plate assemblies I and the side plate assemblies II are fixedly connected with the bottom plate assembly, and a sealing water tank capable of accommodating and sufficiently floating a immersed tube tunnel pipe joint 5 is formed. By adopting the structure, the sealing water tank which is enough to float the immersed tube tunnel pipe joint 5 is formed by fixedly connecting the top plate assembly, the side plate assemblies I on two sides, the side plate assemblies II on two ends and the bottom plate assembly, the immersed tube tunnel pipe joint 5 is in a state to be floated in the sealing water tank by means of buoyancy of water when the prestress of the immersed tube tunnel pipe joint 5 is applied, at the moment, the friction resistance is negligible, and the applied prestress can be effectively transmitted to any part of the immersed tube tunnel pipe joint 5, so that the ideal state of applying the prestress is achieved.
More specifically, the roof assembly comprises a pull rod 12, and two ends of the pull rod 12 are fixedly connected with the side plate assemblies on two sides of the drag reduction water tank through pull rod nuts 9 respectively. By adopting the structure, the side plate assemblies on the two sides of the drag reduction water tank are fixedly connected through the pull rod 12, so that the reinforcing and fixing effects between the side plate assemblies on the two sides of the drag reduction water tank are realized, and meanwhile, the crane lifting operation is facilitated.
More specifically, the first side plate assembly comprises a template panel 6, a template transverse beam 7 and a template back frame beam 8, and the template panel 6, the template transverse beam 7 and the template back frame beam 8 are fixedly connected through bolts. By adopting the structure, the template panel 6, the template transverse beam 7 and the template back frame beam 8 are fixedly connected through bolts to form a side plate assembly I on two sides of the drag reduction water tank, and in practical application, the template transverse beam 7 and the template back frame beam 8 play a role of reinforcing ribs of the template panel 6.
More specifically, a limiting pipe barrel 10 is arranged between the upper part of the template panel 6 and the upper part of the immersed tube tunnel pipe joint 5, a sealing end side plate 14 is arranged between the lower part of the template panel 6 and the lower part of the immersed tube tunnel pipe joint 5, and the sealing end side plate 14 is connected with the immersed tube tunnel pipe joint 5 in a water leakage-proof manner through a P-type rubber water stop 11. By adopting the structure, the template panel 6 and the immersed tunnel pipe joint 5 are arranged at intervals through the limiting pipe barrel 10, so that the later water injection process is facilitated. In practical application, the end-sealing side plate 14 is used for positioning the side surface of the end part of the immersed tunnel pipe joint 5, and the water leakage prevention effect between the end-sealing side plate 14 and the immersed tunnel pipe joint 5 is achieved through the P-type rubber water stop 11.
More specifically, the second side plate assembly comprises sealing templates arranged at two ends of the drag reduction water tank, and the sealing templates are fixedly and hermetically connected with the first side plate assembly and the bottom plate assembly respectively and are connected with each other in a water leakage preventing mode through the P-type rubber water stop belt 11. By adopting the structure, the side plate assemblies II at two ends of the drag reduction water tank are formed through the sealing templates and are fixedly and hermetically connected with the side plate assemblies I and the bottom plate assembly respectively, and the water leakage prevention effect between the sealing templates and the side plate assemblies I and between the P-type rubber water stop 11 is achieved.
More specifically, the bottom plate subassembly includes terrace 1, supports shaped steel 3 and end steel mould 4, supports shaped steel 3 and is fixed in the top of terrace 1, and end steel mould 4 is fixed in the top of supporting shaped steel 3, and the both sides of terrace 1 are respectively with the curb plate subassembly fixed connection of locating drag reduction basin both sides. By adopting the structural arrangement, the floor assembly at the bottom of the drag reduction water tank is formed by the floor 1, the support section steel 3 and the bottom steel mould 4, and in practical application, the support section steel 3 plays a role in supporting the bottom steel mould 4, the bottom steel mould 4 is of a planar design, and friction force can be reduced when the immersed tube tunnel pipe joint 5 is arranged on the bottom steel mould 4.
More specifically, the both sides of terrace 1 are equipped with terrace roof beam 2 respectively, and the curb plate subassembly of terrace roof beam 2 and drag reduction basin both sides is the spacing setting of direction. By adopting the structure, the first side plate assembly on two sides of the drag reduction water tank is guided and limited through the terrace beam 2, and the installation is more convenient. In practical application, terrace beam 2 is the protruding structure of terrace 1 both sides, and during the installation, when lifting by crane the curb plate subassembly of drag reduction basin both sides to terrace 1, the curb plate subassembly of drag reduction basin both sides is tightly installed with the inner wall subsides of terrace beam 2.
More specifically, the terrace 1 is connected with the first side plate assemblies on two sides of the drag reduction water tank in a water leakage-proof way through the P-type rubber water stop belt 11. By adopting the structure, the water leakage prevention effect between the terrace 1 and the side plate assemblies I on two sides of the drag reduction water tank is achieved through the P-type rubber water stop 11.
More specifically, an end bottom baffle 13 is arranged between the terrace 1 and the immersed tube tunnel pipe section 5, and the end bottom baffle 13 is connected with the immersed tube tunnel pipe section 5 through a P-type rubber water stop 11 in a water leakage-proof manner. By adopting the structure, the end bottom baffle 13 is used for positioning the bottom surface of the end part of the immersed tube tunnel pipe joint 5, and the P-type rubber water stop 11 is used for preventing water leakage between the end bottom baffle 13 and the immersed tube tunnel pipe joint 5.
The application method of the large prefabricated part prestress drag reduction water tank comprises the following steps:
1) After the whole pipe joint is completely prefabricated and the strength reaches the prestress application strength, firstly removing a bottom steel mould 4 and supporting steel 3 within the range of 1.5 meters at the two ends of the pipe joint, then fixing an end bottom baffle 13 connected with a P-type rubber water stop 11 on the terrace 1, completing the installation of a bottom plate component at the bottom of the drag reduction water tank, and enabling the immersed tunnel pipe joint 5 to be connected with the end bottom baffle 13 in a water leakage-proof manner through the P-type rubber water stop 11;
2) The template panel 6, the template transverse beam 7 and the template back frame beam 8 are fixedly connected through bolts to complete the installation of a side plate assembly I of the side part of the drag reduction water tank, and the end-capped side plate 14 is fixed on the template panel 6;
3) The first side plate component is lifted by a crane and is arranged on two sides of the immersed tube tunnel pipe section 5 and is in spacing and close to the terrace beam 2 on the terrace 1, the upper part of the template panel 6 and the upper part of the immersed tube tunnel pipe section 5 are separated by a spacing pipe barrel 10, and the immersed tube tunnel pipe section 5 and the end-capped side plate 14 are connected in a water leakage prevention way by a P-type rubber water stop 11;
4) The second side plate component is lifted by a crane and is arranged at two ends of the immersed tunnel pipe joint 5, is fixedly and hermetically connected with the first side plate component and the bottom plate component, and is connected with the bottom plate component in a water leakage prevention way through the P-type rubber water stop 11;
5) The first side plate assemblies on two sides are tightly and fixedly connected under the action of the pull rod nuts 9 through the pull rods 12, so that the upper part of the first side plate assemblies is reinforced;
6) Injecting water into the gap between the template panel 6 and the immersed tube tunnel pipe joint 5, wherein the height of the injected water is calculated in advance, and the buoyancy of the water is close to the gravity of the immersed tube tunnel pipe joint 5;
7) When the immersed tube tunnel pipe joint 5 is in a state to be floated, pre-stressing is applied to the immersed tube tunnel pipe joint 5;
8) And (5) evacuating water after the prestressing force is applied, and removing the top plate assembly, the side plate assembly I and the side plate assembly II.
While the embodiments of the present invention have been described, the present invention is not limited to the above-described embodiments, which are intended to be illustrative only and not limiting, and many forms can be made by those of ordinary skill in the art without departing from the spirit of the invention and the scope of the appended claims, which are to be construed as embodying the present invention.
Claims (7)
1. The utility model provides a large-scale prefabricated component prestressing force construction drag reduction basin which characterized in that: the anti-drag water tank comprises a top plate assembly arranged at the top of the anti-drag water tank, a side plate assembly I arranged at two sides of the anti-drag water tank, a side plate assembly II arranged at two ends of the anti-drag water tank and a bottom plate assembly arranged at the bottom of the anti-drag water tank, wherein the top plate assembly, the side plate assembly I and the side plate assembly II are fixedly connected with the bottom plate assembly, and a sealing water tank which can accommodate and sufficiently float up a immersed tube tunnel pipe joint (5) is formed;
the bottom plate assembly comprises a terrace (1), supporting profile steel (3) and a bottom steel mould (4), wherein the supporting profile steel (3) is fixed at the top of the terrace (1), the bottom steel mould (4) is fixed at the top of the supporting profile steel (3), and two sides of the terrace (1) are fixedly connected with side plate assemblies arranged at two sides of the drag reduction water tank respectively;
the two sides of the terrace (1) are respectively provided with terrace beams (2), and the terrace beams (2) and side plate assemblies on the two sides of the drag reduction water tank are arranged in a guiding and limiting mode;
the terrace (1) is connected with the first side plate assemblies on two sides of the drag reduction water tank in a water leakage-proof mode through the P-type rubber water stop belt (11).
2. The large prefabricated part prestress construction drag reduction water tank according to claim 1, wherein: the top plate assembly comprises a pull rod (12), and two ends of the pull rod (12) are fixedly connected with side plate assemblies on two sides of the drag reduction water tank through pull rod nuts (9) respectively.
3. The large prefabricated part prestress construction drag reduction water tank according to claim 2, wherein: the first side plate assembly comprises a template panel (6), a template transverse beam (7) and a template back frame beam (8), and the template panel (6), the template transverse beam (7) and the template back frame beam (8) are fixedly connected through bolts.
4. A large prefabricated component prestress construction drag reduction water tank according to claim 3, wherein: a limiting pipe barrel (10) is arranged between the upper part of the template panel (6) and the upper part of the immersed tube tunnel pipe joint (5), a sealing end side plate (14) is arranged between the lower part of the template panel (6) and the lower part of the immersed tube tunnel pipe joint (5), and the sealing end side plate (14) is connected with the immersed tube tunnel pipe joint (5) through a P-type rubber water stop belt (11) in a water leakage preventing mode.
5. The large prefabricated part prestress construction drag reduction water tank according to claim 4, wherein: the second side plate assembly comprises sealing templates arranged at two ends of the drag reduction water tank, and the sealing templates are fixedly and hermetically connected with the first side plate assembly and the bottom plate assembly respectively and are connected with each other in a water leakage preventing mode through the P-type rubber water stop belt (11).
6. The large prefabricated part prestress construction drag reduction water tank according to claim 5, wherein: an end bottom baffle (13) is arranged between the terrace (1) and the immersed tube tunnel pipe joint (5), and the end bottom baffle (13) is connected with the immersed tube tunnel pipe joint (5) through a P-type rubber water stop belt (11) in a water leakage prevention mode.
7. The large prefabricated part prestress construction drag reduction water tank as claimed in claim 6, and the use method thereof comprises the following steps:
1) After the whole pipe joint is completely prefabricated and the strength reaches the prestress application strength, firstly removing a bottom steel mould (4) and supporting steel (3) within the range of 1.5 meters at the two ends of the pipe joint, then fixing an end bottom baffle (13) connected with a P-type rubber water stop (11) on a terrace (1), completing the installation of a bottom plate assembly at the bottom of the drag reduction water tank, and enabling the immersed tunnel pipe joint (5) to be connected with the end bottom baffle (13) through the P-type rubber water stop (11) in a water leakage prevention manner;
2) The template panel (6), the template transverse beam (7) and the template back frame beam (8) are fixedly connected through bolts to complete the installation of a side plate assembly I on the side part of the drag reduction water tank, and the end-capped side plate (14) is fixed on the template panel (6);
3) The first side plate component is lifted and arranged on two sides of the immersed tube tunnel pipe joint (5) through a crane and is in limit adhesion with a terrace beam (2) on a terrace (1), the upper part of a template panel (6) and the upper part of the immersed tube tunnel pipe joint (5) are separated through a limit pipe barrel (10), and the immersed tube tunnel pipe joint (5) and a sealing end side plate (14) are connected through a P-type rubber water stop belt (11) in a water leakage prevention manner;
4) The second side plate component is lifted by a crane and is arranged at two ends of a immersed tube tunnel pipe joint (5), is fixedly and hermetically connected with the first side plate component and the bottom plate component, and is connected with the bottom plate component in a water leakage prevention way by a P-type rubber water stop belt (11);
5) The first side plate assemblies on two sides are tensioned and fixedly connected under the action of the pull rod nuts (9) through the pull rods (12) to strengthen the upper parts of the first side plate assemblies;
6) Injecting water into a gap between the template panel (6) and the immersed tube tunnel pipe joint (5), wherein the height of the injected water is calculated in advance definitely, and the buoyancy of the water is close to the gravity of the immersed tube tunnel pipe joint (5);
7) When the immersed tube tunnel pipe joint (5) is in a state to be floated, pre-stressing the immersed tube tunnel pipe joint (5);
8) And (5) evacuating water after the prestressing force is applied, and removing the top plate assembly, the side plate assembly I and the side plate assembly II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910880908.9A CN110616742B (en) | 2019-09-18 | 2019-09-18 | Large prefabricated part prestress construction drag reduction water tank and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910880908.9A CN110616742B (en) | 2019-09-18 | 2019-09-18 | Large prefabricated part prestress construction drag reduction water tank and use method |
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| CN110616742A CN110616742A (en) | 2019-12-27 |
| CN110616742B true CN110616742B (en) | 2023-10-03 |
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| CN114562276B (en) * | 2022-02-28 | 2023-03-14 | 重庆大学 | Rock jacking pipe construction method for reducing resistance by using underground water buoyancy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781895A (en) * | 2009-01-16 | 2010-07-21 | 王锦文 | Method for producing caisson by using floating dock box |
| KR20150057640A (en) * | 2013-11-20 | 2015-05-28 | 한국해양과학기술원 | Steel composite hollow rc submerged floating tunnels using prestressed method and method thereof |
| JP2016148176A (en) * | 2015-02-12 | 2016-08-18 | 鹿島建設株式会社 | Undersea tunnel construction method and land tunnel construction method |
| CN107447784A (en) * | 2017-08-30 | 2017-12-08 | 中交公路规划设计院有限公司 | A kind of prestressed pipe merism and its construction method |
-
2019
- 2019-09-18 CN CN201910880908.9A patent/CN110616742B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781895A (en) * | 2009-01-16 | 2010-07-21 | 王锦文 | Method for producing caisson by using floating dock box |
| KR20150057640A (en) * | 2013-11-20 | 2015-05-28 | 한국해양과학기술원 | Steel composite hollow rc submerged floating tunnels using prestressed method and method thereof |
| JP2016148176A (en) * | 2015-02-12 | 2016-08-18 | 鹿島建設株式会社 | Undersea tunnel construction method and land tunnel construction method |
| CN107447784A (en) * | 2017-08-30 | 2017-12-08 | 中交公路规划设计院有限公司 | A kind of prestressed pipe merism and its construction method |
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