CN105672359A - Tensioning equipment for butting of PC draglines of tube joints of immersed tube tunnel and construction method - Google Patents
Tensioning equipment for butting of PC draglines of tube joints of immersed tube tunnel and construction method Download PDFInfo
- Publication number
- CN105672359A CN105672359A CN201610213152.9A CN201610213152A CN105672359A CN 105672359 A CN105672359 A CN 105672359A CN 201610213152 A CN201610213152 A CN 201610213152A CN 105672359 A CN105672359 A CN 105672359A
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- Prior art keywords
- drag
- positioner
- tensioning equipment
- line
- docking
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000003032 molecular docking Methods 0.000 claims description 35
- 238000005098 hot rolling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000011513 prestressed concrete Substances 0.000 description 47
- 239000004567 concrete Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 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
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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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the technical field of construction of PC draglines and particularly relates to tensioning equipment for butting of PC draglines of tube joints of an immersed tube tunnel and a construction method. The tensioning equipment comprises a tensioning device, a first positioning device and a second positioning device, wherein the first positioning device is connected with the second positioning device; the second positioning device is connected with the tensioning device; the first positioning device is provided with a tensioning device reserved hole for the tensioning device to pass through; the first positioning device is positioned in a U shape; and the second positioning device is positioned by long screws. The tensioning equipment is symmetrically mounted between joint dragline steel sheaths of PC dragline joints at two sides and end parts of dragline embedded parts, so that PC dragline steel strands are straightened. The tensioning equipment provided by the invention can improve the butting efficiency of the PC draglines as well as greatly improve the field utilization ratio and can realize complete recycling. The method provided by the invention realizes butting of the PC draglines in limited operating space by a simple and optimized structure.
Description
Technical field
The present invention relates to PC drag-line technical field of construction and particularly relate to a kind of tensioning equipment for the docking of tunnel pipe connector PC drag-line and construction method.
Background technology
At present, immersed tube tunnel construction technology construct at home in application more and more extensive, in large-scale immersed tube tunnel engineering, relating to the docking construction of a large amount of tunnel joint PC (prestressed concrete) drag-line, the difference of its docking technique will directly affect the drawing fastening construction effect of joint quality, tunnel joint. Traditional construction adopts simple steel concrete steel plate to be welded into the shape of needs to carry out PC drag-line docking, it generally adopts irregular being welded, dismounting is inconvenient, recovery utilization rate is not high, and can only simply meet the docking of PC drag-line, and PC drag-line is fixed, is stretched, fastening etc. must the manual operation of requiring great effort of operator, work efficiency is not high, and job site is chaotic, and civilized construction can not meet.
Summary of the invention
It is an object of the invention to, for prior art Problems existing, a kind of tensioning equipment for the docking of tunnel pipe connector PC drag-line and construction method are provided, install and convenient disassembly, it is easy to recycle, reduce labor strength, and make the linking in order such as pull head location, fastening form continuous-flow type operation, improve efficiency of construction and civilization degree.
This invention address that the technical scheme of problem is: a kind of tensioning equipment for the docking of tunnel pipe connector PC drag-line, including positioner and tensioning equipment, described positioner includes the first positioner and the second positioner, described first positioner and the second positioner are connected, and described second positioner is connected with tensioning equipment; First positioner is provided with mean for the tensioning equipment preformed hole of tensioning equipment traverse.
Preferably, in the present invention in the tensioning equipment of tunnel pipe connector PC drag-line docking, the first described positioner has one group, the second described positioner has two groups, described tensioning equipment has two groups, one group of second positioner is respectively installed in the both sides of the first positioner, often organizes the second positioner and connects one group of tensioning equipment.
Preferably, in the present invention in the tensioning equipment of tunnel pipe connector PC drag-line docking, selected first positioner and the second positioner are connected by long bolt, regulate the distance between the first positioner and the second positioner by long bolt.
Preferably, in the present invention in the tensioning equipment of tunnel pipe connector PC drag-line docking, U-type groove is offered in the centre of the first positioning devices.
It is preferred that in the present invention in the tensioning equipment of tunnel pipe connector PC drag-line docking, described first positioner adopts U-shaped location, the second positioner adopts long bolt location.
Preferably, in the present invention in the tensioning equipment of tunnel pipe connector PC drag-line docking, the connecting portion of the first described positioner and the second positioner adopts circumference full angle adjustable positioning mode, and the tensioning equipment preformed hole periphery at the first positioner is evenly arranged 8 screws.
It is preferred that in the present invention in the tensioning equipment of tunnel pipe connector PC drag-line docking, described tensioning equipment is hydraulic jack, and is equipped with hydraulic hand-pump.
Present invention also offers a kind of tensioning equipment applying the docking of above-mentioned tunnel pipe connector PC drag-line and carry out the construction method of PC drag-line docking, comprise the steps:
(5) tentatively it is connected with branch sleeve respectively after the PC cable connector pull-out of pipeline section both sides having been processed, when just filling, drag-line there is no tension force, until resistance stops when significantly increasing when branch sleeve rotates, the positioning ring of drag-line head and branch sleeve screw, and make branch sleeve be positioned at tunnel pipe connector center;
(6) between the joint drag-line steel sheath of the PC cable connector of both sides and drag-line built-in fitting end, it is symmetrically installed 2 groups of tensioning equipments, opens simultaneously, make PC drag-line steel strand wires straightening;
(7) positioning ring on the PC cable connector of both sides and abutment sleeve are screwed, adopt hot rolling seamless steel plate rotation top branch sleeve simultaneously;
(8) removing special tensioning equipment, next group PC zip branch sleeve pending is installed.
Compared with prior art, the invention has the beneficial effects as follows: the special tensioning equipment reasonable in design provided, it is simple to job site is installed and removed, utilization of area rate is also greatly improved while improving PC drag-line docking efficiency, and can recycle completely; Additionally, method provided by the present invention realizes the docking to PC drag-line with the structure of simple optimizing in limited working place, workman load being greatly decreased, simple operation is laborsaving, is effectively improved efficiency of construction and civilization degree, is suitable to large-scale promotion application.
Accompanying drawing explanation
Fig. 1 is the front view of the first positioner of the tensioning equipment that the present invention is docked for PC drag-line;
Fig. 2 is the front view of the second positioner of the tensioning equipment that the present invention is docked for PC drag-line;
Fig. 3 is the front view of the tensioning equipment that the present invention is docked for PC drag-line;
Fig. 4 is the top view of the tensioning equipment that the present invention is docked for PC drag-line;
Fig. 5 is that the present invention carries out the top view of PC drag-line docking for the tensioning equipment that PC drag-line docks;
Fig. 6 is that the present invention carries out the side view of PC drag-line docking for the tensioning equipment that PC drag-line docks.
Shown in figure: 1-the first positioner, 2-tensioning equipment, 3-the second positioner, 4-long bolt and nut, 5-pipeline section termination beams of concrete, 6-PC drag-line steel strand wires; 7-PC cable connector, 8-branch sleeve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further clarified.
As shown in Figure 1,2,3, 4, a kind of tensioning equipment for the docking of tunnel pipe connector PC drag-line, including positioner and tensioning equipment, described positioner includes one group of first positioner 1 and two group of second positioner 3, tensioning equipment 2 is hydraulic jack, having two groups, and be equipped with hydraulic hand-pump, tensioning equipment 2 is connected with the second positioner 3; U-type groove is offered in the middle of described first positioner 1, first positioner 1 is provided with mean for the tensioning equipment preformed hole of tensioning equipment 2 traverse, second positioner 3 is connected on the first positioner 1 by long bolt, and one group of second positioner 3 and tensioning equipment 2 are respectively installed in U-type groove both sides.
As preferred embodiment, the connecting portion of the first described positioner 1 and the second positioner 2 adopts circumference full angle adjustable positioning mode, and the tensioning equipment preformed hole periphery at the first positioner 1 is evenly arranged 8 screws.
In the present invention, described first positioner 1 adopts U-shaped location, and the second positioner 3 adopts long bolt to position. The first positioner 1 can be made to position with PC cable connector 7 by U-type groove, by regulating the distance of long bolt scalable the second positioner 3 and the first positioner 1, the first positioner 1 location can determine that the position relationship of tensioning equipment and PC cable connector 7, joint drag-line steel sheath and drag-line built-in fitting end; Regulate the position of the second positioner 3, it is possible to regulate the position of tensioning equipment 2.
A kind of tensioning equipment applying the docking of above-mentioned tunnel pipe connector PC drag-line carries out the construction method of PC drag-line docking, comprises the steps:
(1) PC cable connector 7 pull-out of pipeline section both sides is processed and (positioning ring and abutment sleeve are installed on PC cable connector 7, and pull out PC drag-line steel strand wires 6) complete after be tentatively connected with branch sleeve 8 respectively, when just filling, drag-line there is no tension force, until resistance stops when significantly increasing when branch sleeve 8 rotates, the positioning ring of drag-line head and branch sleeve 8 screw substantially, branch sleeve 8 should be made generally within tunnel pipe connector center, namely ensure that branch sleeve 8 length is exposed at positioning ring two ends of substantially equal, as shown in Figure 5 and Figure 6;
(2) between the joint drag-line steel sheath of the PC cable connector 7 of both sides and drag-line built-in fitting end (drag-line built-in fitting end is positioned on pipeline section termination beams of concrete 5), it is symmetrically installed 2 groups of tensioning equipments, open simultaneously, make jack top, both sides power adjust to 25KN, make PC drag-line steel strand wires 6 straightening be in and tighten uniform stressed state;
(3) adopt special wrench set the positioning ring on the PC cable connector 7 of both sides and abutment sleeve to be screwed, adopt hot rolling seamless steel plate rotation top branch sleeve 8 simultaneously;
(4) removing special tensioning equipment, next group PC zip branch sleeve pending is installed.
After above-mentioned PC drag-line has docked, the tensioning equipment that the present invention applied is used for the docking of PC drag-line can be needed to disassemble according to construction and place, the hydraulic jack adopted and hydraulic hand-pump still are able to recycling, after disassembling, it is also possible to need to be quickly completed assembling according to practice of construction.
The invention is not restricted to above-mentioned embodiment, made above-mentioned embodiment is any conspicuously improved of those skilled in the art or change, all without the protection domain beyond the design of the present invention and claims.
Claims (8)
1. the tensioning equipment for the docking of tunnel pipe connector PC drag-line, it is characterized in that: include positioner and tensioning equipment, described positioner includes the first positioner and the second positioner, described first positioner and the second positioner are connected, described second positioner is connected with tensioning equipment, and the first positioner is provided with mean for the tensioning equipment preformed hole of tensioning equipment traverse.
2. the tensioning equipment for the docking of tunnel pipe connector PC drag-line according to claim 1, it is characterized in that: the first described positioner has one group, the second described positioner has two groups, described tensioning equipment has two groups, one group of second positioner is respectively installed in the both sides of the first positioner, often organizes the second positioner and connects one group of tensioning equipment.
3. the tensioning equipment for the docking of tunnel pipe connector PC drag-line according to claim 1, it is characterised in that: U-type groove is offered in the centre of the first positioning devices.
4. the tensioning equipment for the docking of tunnel pipe connector PC drag-line according to claim 3, it is characterised in that: described first positioner adopts U-shaped location, and the second positioner adopts long bolt location.
5. the tensioning equipment for the docking of tunnel pipe connector PC drag-line according to claim 1, it is characterized in that: the connecting portion of the first described positioner and the second positioner adopts circumference full angle adjustable positioning mode, and the tensioning equipment preformed hole periphery at the first positioner is evenly arranged multiple screw.
6. the tensioning equipment applying the docking of tunnel pipe connector PC drag-line described in claim 1 to 5 any one carries out the construction method of PC drag-line docking, it is characterised in that comprise the steps:
(1) tentatively it is connected with branch sleeve respectively after the PC cable connector pull-out of pipeline section both sides having been processed, when just filling, drag-line there is no tension force, until resistance stops when significantly increasing when branch sleeve rotates, the positioning ring of drag-line head and branch sleeve screw, and make branch sleeve be positioned at tunnel pipe connector center;
(2) between the joint drag-line steel sheath of the PC cable connector of both sides and drag-line built-in fitting end, it is symmetrically installed 2 groups of tensioning equipments, opens simultaneously, make PC drag-line steel strand wires straightening;
(3) positioning ring on the PC cable connector of both sides and abutment sleeve are screwed, adopt hot rolling seamless steel plate rotation top branch sleeve simultaneously;
(4) removing special tensioning equipment, next group PC zip branch sleeve pending is installed.
7. the tensioning equipment of tunnel pipe connector PC drag-line docking according to claim 6 carries out the construction method of PC drag-line docking, it is characterised in that: ensure that branch sleeve length is exposed at positioning ring two ends of substantially equal.
8. the tensioning equipment of tunnel pipe connector PC drag-line docking according to claim 6 carries out the construction method of PC drag-line docking, it is characterized in that: before PC cable connector is connected with branch sleeve, positioning ring and abutment sleeve are first installed on PC cable connector, and pull out PC drag-line steel strand wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213152.9A CN105672359B (en) | 2016-04-07 | 2016-04-07 | A kind of tensioning equipment docked for tunnel pipe connector PC drag-lines and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213152.9A CN105672359B (en) | 2016-04-07 | 2016-04-07 | A kind of tensioning equipment docked for tunnel pipe connector PC drag-lines and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105672359A true CN105672359A (en) | 2016-06-15 |
| CN105672359B CN105672359B (en) | 2017-09-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610213152.9A Expired - Fee Related CN105672359B (en) | 2016-04-07 | 2016-04-07 | A kind of tensioning equipment docked for tunnel pipe connector PC drag-lines and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105672359B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274350A (en) * | 2020-08-28 | 2022-04-05 | 周兆弟 | Tensioner |
| CN115680024A (en) * | 2022-11-09 | 2023-02-03 | 交通运输部广州打捞局 | Tooling equipment for butt joint PC cables of pipe joints of immersed tunnel tunnels |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598211A (en) * | 2004-08-18 | 2005-03-23 | 上海市隧道工程轨道交通设计研究院 | Method of connecting steel inhaul cable for tubulation joint |
| CN101831871A (en) * | 2010-03-16 | 2010-09-15 | 中交二航局第二工程有限公司 | Adjustable wind cable and installing method thereof |
| CN203821863U (en) * | 2014-03-31 | 2014-09-10 | 中建八局大连建设工程有限公司 | Sleeve-type tensioning tooling |
| CN104989105A (en) * | 2015-06-04 | 2015-10-21 | 柳州欧维姆工程有限公司 | Method for installing and tensioning stay rope among nodes of N-shaped rope network |
-
2016
- 2016-04-07 CN CN201610213152.9A patent/CN105672359B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598211A (en) * | 2004-08-18 | 2005-03-23 | 上海市隧道工程轨道交通设计研究院 | Method of connecting steel inhaul cable for tubulation joint |
| CN101831871A (en) * | 2010-03-16 | 2010-09-15 | 中交二航局第二工程有限公司 | Adjustable wind cable and installing method thereof |
| CN203821863U (en) * | 2014-03-31 | 2014-09-10 | 中建八局大连建设工程有限公司 | Sleeve-type tensioning tooling |
| CN104989105A (en) * | 2015-06-04 | 2015-10-21 | 柳州欧维姆工程有限公司 | Method for installing and tensioning stay rope among nodes of N-shaped rope network |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114274350A (en) * | 2020-08-28 | 2022-04-05 | 周兆弟 | Tensioner |
| CN115680024A (en) * | 2022-11-09 | 2023-02-03 | 交通运输部广州打捞局 | Tooling equipment for butt joint PC cables of pipe joints of immersed tunnel tunnels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105672359B (en) | 2017-09-29 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Guojiang Inventor after: Yao Yiwen Inventor after: Li Haixia Inventor after: Ke Youhua Inventor after: Deng Biao Inventor after: Zhang Yong Inventor after: Li Shewei Inventor after: Shao Yang Inventor after: Ye Liang Inventor after: Wang Xianwei Inventor after: Wang Zhengtai Inventor after: Cui Yuguo Inventor after: Jiang Peng Inventor after: Wang Qiulin Inventor after: Peng Zaiyong Inventor after: Li Zhijun Inventor after: Sun Chao Inventor after: Zhan Tao Inventor after: Liu Min Inventor after: Chen Wang Inventor before: Li Guojiang Inventor before: Deng Biao Inventor before: Zhang Yong Inventor before: Li Shewei Inventor before: Shao Yang Inventor before: Peng Zaiyong Inventor before: Cui Yuguo Inventor before: Wang Qiulin Inventor before: Li Zhijun Inventor before: Liu Min Inventor before: Chen Wang Inventor before: Yao Yiwen Inventor before: Han Xiujuan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20210407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |