CN113062359B - Reusable slope prefabricated immersed tube section platform device and tube section prefabricating method - Google Patents
Reusable slope prefabricated immersed tube section platform device and tube section prefabricating method Download PDFInfo
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- CN113062359B CN113062359B CN202110440320.9A CN202110440320A CN113062359B CN 113062359 B CN113062359 B CN 113062359B CN 202110440320 A CN202110440320 A CN 202110440320A CN 113062359 B CN113062359 B CN 113062359B
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- pipe joint
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009417 prefabrication Methods 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000009415 formwork Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 12
- 238000009412 basement excavation Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012954 risk control Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a reusable slope prefabricated immersed tube section platform device which comprises a traction mechanism, a tube section prefabricated platform, a pulley mechanism and the like, wherein the tube section prefabricated platform is connected with the traction mechanism, the section of the tube section prefabricated platform is in a right triangle shape, the upper end surface of the tube section prefabricated platform is a horizontal plane, the lower end of the tube section prefabricated platform is fixedly provided with a plurality of pulley mechanisms with locks, the pulley mechanisms are positioned on sliding rails, and the sliding rails are paved along a slope. The pipe joint prefabrication method comprises the following steps: selecting a bank slope; manufacturing a platform device; prefabricating a immersed tube tunnel pipe section on a pipe section prefabricating platform; pushing the pipe joint prefabricating platform into water, towing the pipe joint of the immersed tunnel to the vicinity of the tunnel address, and sinking and butting the pipe joint of the immersed tunnel. The invention adopts the pipe joint prefabricating platform, does not need to dig a large amount of construction dry dock, saves the construction cost and the construction period, has small site area required by the pipe joint prefabricating platform, does not damage the environment, and ensures that the immersed tunnel has stronger applicability. The pipe joint prefabrication platform can be recycled, so that the construction cost is reduced.
Description
Technical Field
The invention belongs to the technical field of immersed tube tunnels, and particularly relates to a reusable slope prefabricated immersed tube section platform device and a tube section prefabricating method.
Background
The immersed tunnel is an underwater tunnel built through the working procedures of pipe prefabrication, towing floating, sinking and butting, foundation treatment, backfilling and covering and the like. The top of the tunnel is shallow in covering soil, the tunnel length is short, the connection with roads on two sides of a water area is more flexible, and after the construction is successful, the land resources in a central urban area can be greatly saved, so that the method is one of main methods for constructing the underwater tunnel of the inland river in the city.
The prefabrication of the traditional pipe joint is carried out in a dock, the construction process is to excavate a foundation pit in a nearby water area, a large dry dock is established, after the pipe joint is prefabricated in the dry dock, the pipe joint floats to a sinking position, the method needs to build the dry dock, the excavation amount of the foundation pit is large, the waste slag is large, the excavation period is long, the construction cost is high, the influence on the surrounding environment is large, and the position of the dry dock is difficult to find.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the slope prefabricated immersed tube section platform device and the tube section prefabricating method which can be repeatedly used, and the occupied area is smaller, so that the immersed tube tunnel tube can be prefabricated by being separated from a dry dock, the large excavation on the shore is avoided, the construction procedure is reduced, and the invention is suitable for immersed tube tunnels of various scales.
The technical scheme adopted by the invention is as follows: the utility model provides a but prefabricated immersed tube coupling platform device in reuse's slope, includes traction mechanism, tube coupling prefabrication platform, pulley mechanism and slide rail, tube coupling prefabrication platform is connected with traction mechanism, tube coupling prefabrication platform's cross-section is right angled triangle, and the up end is the horizontal plane, and the lower extreme is fixed with the pulley mechanism of a plurality of area locks, pulley mechanism is located the slide rail, the slide rail is laid along the slope.
Further, the traction mechanism comprises an anchor block, a hydraulic jack, an anchor rope and an anchor rope guide wheel, wherein the anchor rope is wound on the hydraulic jack and the anchor rope guide wheel, one end of the anchor rope is fixed with the anchor block, and the other end of the anchor rope is fixed with the pipe joint prefabricating platform.
Further, the pipe joint prefabrication platform is of a steel box structure, a steel truss is arranged in the pipe joint prefabrication platform, and a steel plate is arranged on the upper portion of the pipe joint prefabrication platform and used for supporting a pipe joint of a immersed tunnel.
Further, the pulley mechanism comprises a pulley, a wheel frame, a spring, a bolt, a connecting rod and a clamping head, wherein the pulley is connected with the wheel frame, the middle part of the connecting rod is connected with the wheel frame, two ends of the connecting rod are respectively connected with the bolt and the clamping head, the clamping head is positioned beside the pulley, the bolt penetrates through the connecting rod, the lower end of the bolt is connected with the connecting rod, and the spring is sleeved on the bolt and is positioned between the bolt cap and the connecting rod. The bolt is screwed to drive the connecting rod to rotate anticlockwise, so that the clamping head moves downwards and is clung to the pulley, and the pulley is limited to rotate. The spring plays a role of supporting the bolt.
The technical scheme adopted by the invention is as follows: a pipe section prefabrication method using a reusable ramp prefabrication immersed pipe section platform device, comprising the steps of:
step 1: selecting a embankment position which is closer to a sinking tunnel address of a pipe section of the sinking tunnel, leveling a slope and paving a sliding rail;
step 2: manufacturing a pipe joint prefabrication platform, and installing a pulley mechanism below the pipe joint prefabrication platform;
step 3: placing the pipe joint prefabrication platform on a slope slide rail to enable a pulley of a pulley mechanism to be in a locking state, and then anchoring the pipe joint prefabrication platform through a traction mechanism;
step 4: prefabricating a pipe section of the immersed tunnel on a pipe section prefabricating platform;
Step 5: unlocking the pulley, pushing the pipe joint prefabricating platform into water through the traction mechanism, towing the pipe joint of the immersed tunnel to the vicinity of a tunnel address, and sinking and butting the pipe joint of the immersed tunnel;
Step 6: the traction mechanism pulls the pipe joint prefabricating platform to return to the initial position, and the pulley is locked;
Step 7: and (5) continuously repeating the step (4), the step (5) and the step (6) until all immersed tube tunnel pipe joints are immersed and butted to form an immersed tube tunnel.
Furthermore, the lengths of all sides of the upper end face of the pipe joint prefabricating platform in the step 2 are larger than the lengths of all sides of the horizontal projection of the immersed tunnel pipe joint by more than 2 m.
Furthermore, step 4 is specifically to finish the binding of the steel bars of the single pipe joint on the pipe joint prefabricating platform, and perform the pipe joint structure vertical mould, concrete pouring and maintenance operation to form the pipe joint of the immersed tunnel.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, the right triangle pipe joint prefabrication platform is arranged on the slope, the upper end face of the pipe joint prefabrication platform is a horizontal plane, the side length of the pipe joint prefabrication platform is larger than that of the immersed tube tunnel pipe joint, and the pipe joint prefabrication platform is used as the prefabrication platform of the immersed tube tunnel pipe joint, so that a large excavation construction dry dock is not needed, the engineering cost and the construction period are saved, the required field area of the pipe joint prefabrication platform is small, the environment is not damaged, and the immersed tube tunnel applicability is stronger. The pipe joint prefabrication platform adopts a steel box structure, can be recycled and reused, and reduces construction cost. Leveling the slope at the bank position at the position close to the tunnel address, paving the slide rail, and reducing the floating distance and the channel dredging amount when the pipe joint prefabrication place is close to the tunnel address.
The pipe joint prefabrication platform is matched with the pulley mechanism with the lock, the movement of the pipe joint prefabrication platform is limited in the pipe joint manufacturing process of the immersed tunnel, meanwhile, the traction mechanism adopts the structures of the anchor block, the hydraulic jack, the anchor rope and the anchor rope guide wheel, and in the locking state of the pipe joint prefabrication platform, the hydraulic jack is used for assisting in tensioning the anchor rope, and the movement of the pipe joint prefabrication platform is limited, so that the pipe joint prefabrication platform can be controlled to be high in lifting and descending, and construction safety risk control is facilitated.
Drawings
FIG. 1 is a schematic view of the structure of an initial position of a pipe joint prefabrication platform according to an embodiment of the invention;
FIG. 2 is a schematic view of a pipe joint prefabrication platform according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a pulley mechanism according to an embodiment of the present invention.
In the figure, the pipe joint is formed by a 1-pipe joint prefabricating platform, a 2-sliding rail, a 3-anchor block, a 4-hydraulic jack, a 5-anchor rope, a 6-anchor rope guide wheel, a 7-pulley, an 8-wheel frame, a 9-spring, a 10-bolt, an 11-connecting rod, a 12-clamping head and a 13-immersed tunnel pipe joint.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the specific embodiments, so that those skilled in the art can better understand the technical solutions of the present invention.
The embodiment of the invention provides a reusable slope prefabricated immersed tube joint platform device, which comprises a traction mechanism, a tube joint prefabricated platform 1, a pulley mechanism and a sliding rail 2 as shown in figures 1-3. The sliding rail 2 is paved along the slope of the embankment, and a part of the sliding rail is positioned below the horizontal plane. The pipe joint prefabrication platform 1 is used as a manufacturing platform of the immersed tunnel pipe joint 13, and the size of the pipe joint prefabrication platform is determined according to the gradient of the sliding rail 2 and the size of the immersed tunnel pipe joint 13. The pipe joint prefabrication platform 1 adopts a steel box structure, a steel truss is arranged inside the steel truss, the upper part is provided with a steel plate. The section of the pipe joint prefabricating platform 1 is a right triangle, the upper end face is a horizontal plane, and the length of each side of the upper end face is more than 2m longer than the length of each side of the horizontal projection of the immersed tunnel pipe joint 13.
The lower end of the pipe joint prefabricating platform 1 is fixedly provided with a plurality of pulley mechanisms with locks, and the pulley mechanisms are arranged below the least unfavorable stress position of the pipe joint 13 of the immersed tunnel and comprise pipe joint side walls and pipe joint spans at middle positions. The pulley mechanism is located on the slide rail 2. The pulley mechanism comprises a pulley 7, a wheel frame 8, a spring 9, a bolt 10, a connecting rod 11 and a clamping head 12, wherein the pulley 7 is connected with the wheel frame 8, the middle part of the connecting rod 11 is connected with the wheel frame 8, two ends of the connecting rod are respectively connected with the bolt 10 and the clamping head 12, the clamping head 12 is positioned beside the pulley 7, the bolt 10 penetrates through the connecting rod 11, the lower end of the bolt 10 is connected with the connecting rod 11, and the spring 9 is sleeved on the bolt 10 and positioned between a bolt cap and the connecting rod 11. As shown in fig. 3, the pulley mechanism is in an unlocked state, and the connecting rod 11 is driven to rotate anticlockwise by screwing the bolt 10, so that the clamping head 12 moves downwards and is tightly attached to the pulley 7, thereby limiting the rotation of the pulley 7 and converting the pulley mechanism into a locked state. The spring 9 functions as a support bolt 10.
The traction mechanism comprises an anchor block 3, a hydraulic jack 4, an anchor rope 5 and an anchor rope guide wheel 6, wherein the anchor block 3, the hydraulic jack 4 and the anchor rope guide wheel 6 are fixed on a dyke. The anchor cable 5 is wound on the hydraulic jack 4 and the anchor cable guide wheel 6, one end of the anchor cable is fixed with the anchor block 3, and the other end of the anchor cable is fixed with the pipe joint prefabrication platform 1. The hydraulic jack 4 is used for assisting in tensioning the anchor cable 5, and the lifting of the pipe joint prefabricating platform 1 can be controlled through the hydraulic jack 4.
The embodiment of the invention also provides a pipe joint prefabricating method using the reusable slope prefabricating immersed pipe joint platform device, which comprises the following steps of:
Step 1: selecting a embankment position which is closer to a sinking tunnel address of a pipe section of the sinking tunnel, leveling a slope, and paving a slide rail 2 and a foundation structure;
step 2: manufacturing a pipe joint prefabrication platform 1, wherein the length of each side of the upper end surface of the pipe joint prefabrication platform 1 is more than 2m longer than the length of each side of the horizontal projection of a immersed tunnel pipe joint 13, and a pulley mechanism is arranged below the pipe joint prefabrication platform 1;
step 3: placing the pipe joint prefabrication platform 1 on the slope slide rail 2, enabling the pulleys 7 of all pulley mechanisms to be in a locking state, and anchoring the pipe joint prefabrication platform through a traction mechanism;
Step 4: prefabrication of a immersed tube tunnel tube section 13 is carried out on the tube section prefabrication platform 1, and specifically comprises the following steps: binding steel bars of a single pipe joint on the pipe joint prefabrication platform 1, and performing pipe joint structure formwork erection, concrete pouring and maintenance operation to form a pipe joint 13 of the immersed tunnel; as shown in fig. 1;
Step 5: unlocking the pulley 7, and pushing the pipe joint prefabricating platform 1 into water through a traction mechanism, as shown in figure 2; towing the immersed tube tunnel pipe section 13 to the vicinity of the tunnel address, and sinking and butting the immersed tube tunnel pipe section 13;
step 6: the traction mechanism pulls the pipe joint prefabrication platform 1 to return to the initial position, and the pulley 7 is locked;
Step 7: and (5) continuously repeating the step (4), the step (5) and the step (6) until all immersed tube tunnel pipe sections (13) are immersed and butted to form an immersed tube tunnel.
The present invention has been described in detail by way of examples, but the description is merely exemplary of the invention and should not be construed as limiting the scope of the invention. The scope of the invention is defined by the claims. In the technical scheme of the invention, or under the inspired by the technical scheme of the invention, similar technical schemes are designed to achieve the technical effects, or equivalent changes and improvements to the application scope are still included in the protection scope of the patent coverage of the invention.
Claims (3)
1. A pipe joint prefabrication method using a reusable slope prefabrication immersed pipe joint platform device is characterized in that:
The utility model provides a but prefabricated immersed tube section platform device in reuse's slope, includes traction mechanism, tube section prefabricated platform, pulley mechanism and slide rail, tube section prefabricated platform is connected with traction mechanism, the up end of tube section prefabricated platform is the horizontal plane, and the lower extreme is fixed with the pulley mechanism of a plurality of area locks, pulley mechanism is located on the slide rail, the slide rail is laid along the slope;
The traction mechanism comprises an anchor block, a hydraulic jack, an anchor rope and an anchor rope guide wheel, wherein the anchor rope is wound on the hydraulic jack and the anchor rope guide wheel, one end of the anchor rope is fixed with the anchor block, and the other end of the anchor rope is fixed with the pipe joint prefabrication platform;
the pipe joint prefabrication platform is of a steel box structure, a steel truss is arranged in the pipe joint prefabrication platform, the upper part is provided with a steel plate for supporting the immersed tube tunnel pipe joint;
The pulley mechanism comprises a pulley, a wheel frame, a spring, a bolt, a connecting rod and a clamping head, wherein the pulley is connected with the wheel frame, the middle part of the connecting rod is connected with the wheel frame, the two ends of the connecting rod are respectively connected with the bolt and the clamping head, the clamping head is positioned beside the pulley, the bolt penetrates through the connecting rod, the lower end of the bolt is connected with the connecting rod, and the spring is sleeved on the bolt and is positioned between the bolt cap and the connecting rod;
the pipe joint prefabrication method using the reusable slope prefabrication immersed pipe joint platform device comprises the following steps of:
step 1: selecting a embankment position which is closer to a sinking tunnel address of a pipe section of the sinking tunnel, leveling a slope and paving a sliding rail;
step 2: manufacturing a pipe joint prefabrication platform, and installing a pulley mechanism below the pipe joint prefabrication platform;
step 3: placing the pipe joint prefabrication platform on a slope slide rail to enable a pulley of a pulley mechanism to be in a locking state, and then anchoring the pipe joint prefabrication platform through a traction mechanism;
step 4: prefabricating a pipe section of the immersed tunnel on a pipe section prefabricating platform;
Step 5: unlocking the pulley, pushing the pipe joint prefabricating platform into water through the traction mechanism, towing the pipe joint of the immersed tunnel to the vicinity of a tunnel address, and sinking and butting the pipe joint of the immersed tunnel;
Step 6: the traction mechanism pulls the pipe joint prefabricating platform to return to the initial position, and the pulley is locked;
Step 7: and (5) continuously repeating the step (4), the step (5) and the step (6) until all immersed tube tunnel pipe joints are immersed and butted to form an immersed tube tunnel.
2. A pipe section prefabrication method using a reusable slope prefabrication immersed pipe section platform device as claimed in claim 1, wherein: and (2) the length of each side of the upper end surface of the pipe joint prefabricating platform in the step (2) is more than 2m longer than the length of each side of the horizontal projection of the immersed tunnel pipe joint.
3. A pipe section prefabrication method using a reusable slope prefabrication immersed pipe section platform device as claimed in claim 1, wherein: and step 4, binding steel bars of a single pipe joint on a pipe joint prefabricating platform, and performing pipe joint structure formwork erection, concrete pouring and maintenance operation to form a pipe joint of the immersed tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110440320.9A CN113062359B (en) | 2021-04-23 | 2021-04-23 | Reusable slope prefabricated immersed tube section platform device and tube section prefabricating method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110440320.9A CN113062359B (en) | 2021-04-23 | 2021-04-23 | Reusable slope prefabricated immersed tube section platform device and tube section prefabricating method |
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| CN113062359A CN113062359A (en) | 2021-07-02 |
| CN113062359B true CN113062359B (en) | 2024-09-24 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658089A (en) * | 1992-08-06 | 1994-03-01 | Shimizu Corp | Construction of underwater structure |
| CN111452206A (en) * | 2020-04-13 | 2020-07-28 | 中铁（天津）隧道工程勘察设计有限公司 | Device and method for manufacturing dry dock-free hydraulic pushing immersed tube tunnel pipe section |
| CN215367409U (en) * | 2021-04-23 | 2021-12-31 | 中铁隧道勘测设计院有限公司 | Reusable slope prefabricated immersed tube joint platform device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6906817A (en) * | 1969-05-05 | 1970-11-09 | ||
| JPH11182191A (en) * | 1997-12-25 | 1999-07-06 | Kumagai Gumi Co Ltd | Reinforcing bar arrangement on secondary lining of shield tunnel and reinforcing bar support fitting |
| CN204400394U (en) * | 2014-12-31 | 2015-06-17 | 中交路桥华南工程有限公司 | A kind of steep slope region slideway transport systems |
| CN108252328A (en) * | 2018-02-01 | 2018-07-06 | 中交第航务工程局有限公司 | The lower water transportation by driving of assembled pipe gallery and underwater assembling process |
| CN108360384B (en) * | 2018-02-28 | 2019-11-22 | 浙江省交通规划设计研究院 | Underway push construction method |
| CN112554208B (en) * | 2020-11-03 | 2022-02-18 | 中铁二局集团有限公司 | Cantilever support platform, supporting and retaining wall and construction method |
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- 2021-04-23 CN CN202110440320.9A patent/CN113062359B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0658089A (en) * | 1992-08-06 | 1994-03-01 | Shimizu Corp | Construction of underwater structure |
| CN111452206A (en) * | 2020-04-13 | 2020-07-28 | 中铁（天津）隧道工程勘察设计有限公司 | Device and method for manufacturing dry dock-free hydraulic pushing immersed tube tunnel pipe section |
| CN215367409U (en) * | 2021-04-23 | 2021-12-31 | 中铁隧道勘测设计院有限公司 | Reusable slope prefabricated immersed tube joint platform device |
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