CN201133515Y - Branch pipe pre-pressure mounting device - Google Patents
Branch pipe pre-pressure mounting device Download PDFInfo
- Publication number
- CN201133515Y CN201133515Y CNU2007203113492U CN200720311349U CN201133515Y CN 201133515 Y CN201133515 Y CN 201133515Y CN U2007203113492 U CNU2007203113492 U CN U2007203113492U CN 200720311349 U CN200720311349 U CN 200720311349U CN 201133515 Y CN201133515 Y CN 201133515Y
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- CN
- China
- Prior art keywords
- bifurcated pipe
- steel plate
- billet
- precompression
- interior
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a branch pipe pre-pressing strengthening device, in particular to a branch pipe pre-pressure supporting device, and is characterized in that a force strengthening support piece (2) is arranged around a crescent rib reinforced branch pipe (1) and is connected with an anchor pipe (3). The branch pipe pre-pressure supporting device has the advantages of simple structure, easy construction and low cost, and a crescent rib, the top and the bottom of the branch pipe can be loaded with the pre-pressure respectively, thus improving the stress force condition of the branch pipe and the crescent rib.
Description
Technical field
The utility model relates to a kind of bifurcated pipe precompression reinforcing device., particularly a kind of bifurcated pipe precompression support device.
Background technique
The hydropower station pressure steel pipe is typically provided with bifurcated pipe before entering factory, because the complex structure at bifurcated pipe position, localized stress is very big, can not satisfy code requirement.For embedded crescent moon rib bifurcated pipe, crescent moon rib and three Taper Pipe junctions (being the upper/lower terminal of crescent moon rib) are under the effect of internal water pressure, outside dilatancy, stress ratio is bigger, generally, often takes to increase the way of bifurcated pipe or crescent moon rib steel plate thickness for new construction, this way one is that the steel plate engineering work load is big, the 2nd, the welding engineering amount is big, and difficulty is big, the expense height; Another kind of solution is exactly a configuration reinforcement outside bifurcated pipe, and this way difficulty of construction is big, the concreting leakiness, and quality can't guarantee.For the bifurcated pipe position of hydropower station pressure steel pipe, therefore often because the excessive stress that occurs of distortion exceeds standard, need reduce the steel lining distortion by applying precompression, thereby improve the bifurcated pipe steel lining stress phenomenon that exceeds standard, guarantee the bifurcated pipe safe operation.
Summary of the invention
The purpose of this utility model provides a kind of bifurcated pipe precompression support device, and its simple in structure, easy construction, expense are cheap, can apply precompression respectively at top, the end of crescent moon rib and bifurcated pipe, improve the stress condition of bifurcated pipe and crescent moon rib.
For achieving the above object, the technical solution of the utility model is: design a kind of bifurcated pipe precompression support device, it is characterized in that: crescent moon rib bifurcated pipe 1 is distributed with on every side and adds force support 2, adds force support 2 and is connected with anchor pile 3.
The described axis 4 that adds force support 2 and anchor pile 3 is consistent with crescent moon rib bifurcated pipe 1 normal.
The described axis 4 that adds force support 2 and anchor pile 3 radially evenly distributes along crescent moon rib bifurcated pipe 1.
The described force support 2 that adds comprises interior billet 5, outer billet 6, inner sleeve 7, outer sleeve 8, interior steel plate 9, outer steel plate 10 and extension lever 11, interior billet 5 is fixing with crescent moon rib bifurcated pipe 1 surface, interior steel plate 9 and outer steel plate 10 are socketed in the two ends of extension lever 11, steel plate 9 and outer steel plate 10 in stretch out at extension lever 11 two ends, inner sleeve 7 one ends are connected with interior billet 5, and inner sleeve 7 the other ends are socketed on the extension lever 11 in interior steel plate 9 outsides; Outer sleeve 8 one ends are connected with outer billet 6, and outer sleeve 8 the other ends are socketed on the extension lever 11 in outer steel plate 10 outsides, and the central axis 14 of inner sleeve 7, outer sleeve 8 and extension lever 11 overlaps with axis 4.
Between billet 5 and the inner sleeve 7 dynamometer 12 is arranged in described.
The thickness of billet 5, interior steel plate 9 and outer steel plate 10 is 20mm in described.
Described inner sleeve 7 and outer sleeve 8 external diameters are 100mm.
Described outer billet 6 outsides are country rocks 13.
Characteristics of the present invention are: owing to settle anchor pile respectively in the upper and lower rock of bifurcated pipe before bifurcated pipe is installed, bifurcated pipe is installed the back and is connected steel lining and anchor pile with afterburning the support, support to steel lining and crescent moon rib to apply precompression by reinforcing, reach and improve bifurcated pipe steel lining and crescent moon rib stress raisers phenomenon.Bifurcated pipe structure after finishing for processing and fabricating need not change original bifurcated pipe pattern, does not destroy the bifurcated pipe structure, does not increase difficulty of construction, implements fairly simple.Adopt the precompression reinforcement technique, limited the distortion of three Taper Pipes of bifurcated pipe or crescent moon rib, improved the stress phase of bifurcated pipe, satisfied code requirement.
Description of drawings
The utility model is described in further detail below in conjunction with embodiment's accompanying drawing.
Fig. 1 is the utility model example structure floor map;
Fig. 2 is a bifurcated pipe supporting structure schematic representation.
Among the figure: 1, crescent moon rib bifurcated pipe; 2, add force support; 3, anchor pile; 4, axis; 5, interior billet; 6, outer billet; 7, inner sleeve; 8, outer sleeve; 9, interior steel plate; 10, outer steel plate; 11, extension lever; 12, dynamometer; 13, country rock; 14, central axis.
Embodiment
As shown in Figure 1, do not change under the three-dimensional-structure situation of former bifurcated pipe,, add force support 2 and be connected with anchor pile 3 by evenly arranging a plurality of force supports 2 that add to crescent moon rib bifurcated pipe 1 radial direction.Support by crescent moon rib bifurcated pipe 1 arranged around is afterburning, add a pressure in advance in advance crescent moon rib bifurcated pipe 1, precompression is passed to country rock 13 (rock around the bifurcated pipe) by supporting.It is consistent with crescent moon rib bifurcated pipe 1 normal with the axis 4 of anchor pile 3 to add force support 2.The axis 4 that adds force support 2 and anchor pile 3 radially evenly distributes along crescent moon rib bifurcated pipe 1.Its distribution angle is between the 15-30 degree.Concrete add force support 2 just the circle A among the figure provide by Fig. 2.
As shown in Figure 2, add force support 2 and comprise interior billet 5, outer billet 6, inner sleeve 7, outer sleeve 8, interior steel plate 9, outer steel plate 10 and extension lever 11.
Its structure Placement is: interior billet 5 is fixing with crescent moon rib bifurcated pipe 1 surface, interior steel plate 9 and outer steel plate 10 are socketed in the two ends of extension lever 11, steel plate 9 and outer steel plate 10 in stretch out at extension lever 11 two ends, inner sleeve 7 one ends are connected with interior billet 5, and inner sleeve 7 the other ends are socketed on the extension lever 11 in interior steel plate 9 outsides; Outer sleeve 8 one ends are connected with outer billet 6, and outer sleeve 8 the other ends are socketed on the extension lever 11 in outer steel plate 10 outsides, and the central axis 14 of inner sleeve 7, outer sleeve 8 and extension lever 11 overlaps with axis 4.Generally speaking, the thickness of interior billet 5, interior steel plate 9 and outer steel plate 10 is 20mm.
Specifically implement shown in accompanying drawing 1～2, it is as follows to implement thinking:
(1) after the bifurcated pipe cavern excavation is finished,, and finishes anchor pile 3 grouting earlier at the punching in the rock about in the of 1 of crescent moon rib bifurcated pipe, installation anchor pile 3.
(2) bifurcated pipe is installed, and between interior billet 5, outer billet 6 and anchor pile 3, dynamometer 12 is installed, place the billet of a 300mm at interior billet 5, outer billet 6 and the connection part of dynamometer 12, concentrated to prevent producing steel lining stress.
(3) apply precompression by force transmission mechanism to steel lining.
(4) build the bifurcated pipe peripheral concrete.
Claims (8)
1, bifurcated pipe precompression support device is characterized in that: crescent moon rib bifurcated pipe (1) arranged around adds force support (2), adds force support (2) and is connected with anchor pile (3).
2, bifurcated pipe precompression support device according to claim 1 is characterized in that: the described axis (4) that adds force support (2) and anchor pile (3) is consistent with crescent moon rib bifurcated pipe (1) normal.
3, bifurcated pipe precompression support device according to claim 1 is characterized in that: the described axis (4) that adds force support (2) and anchor pile (3) radially evenly distributes along crescent moon rib bifurcated pipe (1).
4, bifurcated pipe precompression support device according to claim 1, it is characterized in that: the described force support (2) that adds comprises interior billet (5), outer billet (6), inner sleeve (7), outer sleeve (8), interior steel plate (9), outer steel plate (10) and extension lever (11), interior billet (5) is fixing with crescent moon rib bifurcated pipe (1) surface, interior steel plate (9) and outer steel plate (10) are socketed in the two ends of extension lever (11), interior steel plate (9) and outer steel plate (10) are also stretched out in extension lever (11) two ends, inner sleeve (7) one ends are connected with interior billet (5), and inner sleeve (7) the other end is socketed on the extension lever (11) in interior steel plate (9) outside; Outer sleeve (8) one ends are connected with outer billet (6), and outer sleeve (8) the other end is socketed on the extension lever (11) in outer steel plate (10) outside, and the central axis (14) of inner sleeve (7), outer sleeve (8) and extension lever (11) overlaps with axis (4).
5, bifurcated pipe precompression support device according to claim 4 is characterized in that: between billet (5) and the inner sleeve (7) dynamometer (12) is arranged in described.
6, bifurcated pipe precompression support device according to claim 4 is characterized in that: the thickness of billet (5), interior steel plate (9) and outer steel plate (10) is 20mm in described.
7, bifurcated pipe precompression support device according to claim 4 is characterized in that: described inner sleeve (7) and outer sleeve (8) external diameter are 100mm.
8, bifurcated pipe precompression support device according to claim 4 is characterized in that: described outer billet (6) outside is country rock (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203113492U CN201133515Y (en) | 2007-12-21 | 2007-12-21 | Branch pipe pre-pressure mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203113492U CN201133515Y (en) | 2007-12-21 | 2007-12-21 | Branch pipe pre-pressure mounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133515Y true CN201133515Y (en) | 2008-10-15 |
Family
ID=40061787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203113492U Expired - Lifetime CN201133515Y (en) | 2007-12-21 | 2007-12-21 | Branch pipe pre-pressure mounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133515Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594470A (en) * | 2020-12-16 | 2021-04-02 | 中国电建集团昆明勘测设计研究院有限公司 | Method for arranging crescent rib bifurcated pipe stiffening beam |
-
2007
- 2007-12-21 CN CNU2007203113492U patent/CN201133515Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594470A (en) * | 2020-12-16 | 2021-04-02 | 中国电建集团昆明勘测设计研究院有限公司 | Method for arranging crescent rib bifurcated pipe stiffening beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ELECTRIC POWER CONSTRUCTION GROUP NORTHWEST Free format text: FORMER NAME: HYDROCHINA XIBEI ENGINEERING CORPORATION Owner name: HYDROCHINA XIBEI ENGINEERING CORPORATION Free format text: FORMER NAME: NORTHWEST HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF CHINA HYDROPOWER ENGINEERING CONSULTING |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710065 Shaanxi Province, Xi'an City Road eight No. 18 general survey and Design Institute of the Northwest Office Patentee after: NORTHWEST HYDRO CONSULTING ENGINEERS, CHECC Address before: 710065 Shaanxi Province, Xi'an City Road eight No. 18 general survey and Design Institute of the Northwest Office Patentee before: Northwest Hydro Consulting Engineers, CHECC |
|
| CP03 | Change of name, title or address |
Address after: 710065 Shaanxi Province, Xi'an City Road eight No. 18 Patentee after: POWERCHINA NORTHWEST ENGINEERING Co.,Ltd. Address before: 710065 Shaanxi Province, Xi'an City Road eight No. 18 general survey and Design Institute of the Northwest Office Patentee before: NORTHWEST HYDRO CONSULTING ENGINEERS, CHECC |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
|
| CX01 | Expiry of patent term |