CN102154985B - Guide shield for pushing rectangular concrete frame bridge - Google Patents
Guide shield for pushing rectangular concrete frame bridge Download PDFInfo
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- CN102154985B CN102154985B CN2011100408604A CN201110040860A CN102154985B CN 102154985 B CN102154985 B CN 102154985B CN 2011100408604 A CN2011100408604 A CN 2011100408604A CN 201110040860 A CN201110040860 A CN 201110040860A CN 102154985 B CN102154985 B CN 102154985B
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- rectangular
- metal frame
- frame structure
- rectangular metal
- concrete frame
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Abstract
The invention relates to a guide shield for pushing a rectangular concrete frame bridge, which is characterized in that the front end of a prefabricated rectangular concrete frame bridge is provided with a rectangular metal frame structure, the rear end of the rectangular metal frame structure and the front end of the rectangular concrete frame bridge have the same section dimension, and are mutually engaged into a whole body, four surfaces of the rectangular metal frame structure has a box-shaped structure, an inner cavity of the rectangular metal frame structure is hollow, the periphery of the front end of the rectangular metal frame structure has a wedge-shaped structure, two side plates of the rectangular metal frame structure extend downwards to be in sliding contaction with the outer wall of a bottom plate guide steel tube for pushing the rectangular concrete frame bridge, and grating steel plates which are crisscrossed are uniformly distributed in the hollow inner cavity of the front of the rectangular metal frame structure, and divide the hollow inner cavity of the front of the rectangular metal frame structure into two-hole, four-hole, six-hole or nine-hole grating units. When the rectangular concrete frame bridge of a railway or a highway subgrade is pushed by the guide shield disclosed by the invention, I-steel, temporary beams and other reinforcement measures or speed limit running are free, so that the defects of the occurrence of landslides or the offset of pushing can be prevented.
Description
Technical field
The present invention relates to a kind of driving railway or highway subgrade equipment, the guiding shield structure of particularly a kind of pushing tow Rectangular Concrete frame bridge or framework culvert.
Background technology
In road overpass or culvert engineering construction, needing will prefabricated Rectangular Concrete frame bridge jacking and pass the roadbed that has railway or highway now, so that automobile, pedestrian, pipeline, cable grade separation pass through.In the construction, prefabricated Rectangular Concrete frame bridge needs ceaselessly earth is dug out to continue jacking when the dirt bed jacking of roadbed; In order to keep the operation of upper strata railway or highway; Usually need to adopt i iron, just reinforcement measure or limiting operation such as beam; But the end face of Rectangular Concrete frame bridge is difficult to directly incision dirt bed, and when the section of Rectangular Concrete frame bridge greatly the time, the exposed area of roadbed dirt bed is also bigger; Cave in easily, cause security incident; Reinforcement means can not satisfy the high-speed railway of continuous speed-raising and the requirement of speedway operation in traditional construction.When also having the prefabricated Rectangular Concrete frame bridge of jacking; Adopt the disclosed guiding steel pipe of utility model patent " a kind of guiding device of base plate of jacking frame bridge ", the base plate with prefabricated Rectangular Concrete frame bridge during jacking is placed on the pre-buried guiding steel pipe; Though pre-buried guiding steel pipe can reduce the jacking frame bridge resistance, prevent the phenomenon that front end sinks or lifts from still to squint in the horizontal direction easily.
Summary of the invention
The guiding shield structure that the purpose of this invention is to provide a kind of pushing tow Rectangular Concrete frame bridge or framework culvert; Need not take i iron, just reinforcement measure or limiting operation such as beam when adopting Rectangular Concrete frame bridge or the framework culvert of its pushing tow railway or highway subgrade, can prevent the drawback of landslide or pushing tow skew.
Technical scheme of the present invention is: a kind of guiding shield structure of pushing tow Rectangular Concrete frame bridge comprises by engineering design prefabricated highway or the Rectangular Concrete frame bridge of railway and the base plate guiding steel pipe of jacking Rectangular Concrete frame bridge; At the front end preparation rectangular metal frame structure of said prefabricated Rectangular Concrete frame bridge, rectangular metal frame structure rear end is identical with the cross dimensions of Rectangular Concrete frame bridge front end, and engaged being integral; The reinforcing bar of said Rectangular Concrete frame bridge front end and said rectangular metal frame structure rear end are integrally welded.The four sides of rectangular metal frame structure is a box structure, and inner chamber is hollow, is wedge shape structure around the front end; Two blocks of side plates of rectangular metal frame structure are to the outer wall sliding-contact that extends below with the base plate of said jacking Rectangular Concrete frame bridge guiding steel pipe.The anterior hollow lumen of rectangular metal frame structure is provided with the grid steel plate of the right-angled intersection in length and breadth that is uniformly distributed with; Vertical steel plate of the grid steel plate of the right-angled intersection in length and breadth that is uniformly distributed with or horizontal steel plate respectively are the 1-3 piece, are divided into two holes, four holes, six holes or nine hole grill unit to the anterior inner chamber of rectangular metal frame structure.
The invention has the beneficial effects as follows:
1, the front end of prefabricated Rectangular Concrete frame bridge preparation rectangular metal frame structure; The four sides of rectangular metal frame structure is a box structure; Firm resistance to compression; Can bearing frame build bridge or the huge load on framework culvert top, need not adopt i iron, just reinforcement measure or limiting operation such as beam, the requirement that high-speed railway and speedway are normally runed in the time of can satisfying subgrade construction.
2, be wedge shape structure around the front end of rectangular metal frame structure, be convenient to directly cut the dirt bed of roadbed.The inner chamber of rectangular metal frame structure is the same with the Rectangular Concrete frame bridge all to be hollow, is convenient to excavation operation and transports the earth that digs out.
3, the front end of rectangular metal frame structure is provided with the grid steel plate of the right-angled intersection in length and breadth that is uniformly distributed with, and is divided into two holes, four holes, six holes or nine hole grill unit to the anterior inner chamber of rectangular metal frame structure; The exposed area of each grill unit significantly reduces, and the soil body is in stable status in little grill unit, avoids taking place landslide and causes security incident.
4, two of rectangular metal frame structure blocks of side plates can lead to the outer wall sliding-contact that extends below with base plate guiding steel pipe in the horizontal direction, avoid taking place to squint.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the structural representation of rectangular metal frame structure.
Fig. 4 is the B-B sectional view of Fig. 3.
Fig. 5 is the C-C sectional view of Fig. 3.
Fig. 6 is the D-D sectional view of Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Embodiment 1Shown in accompanying drawing 1-6: a kind of guiding shield structure of pushing tow Rectangular Concrete frame bridge comprises by the prefabricated highway of engineering design or the Rectangular Concrete frame bridge of railway; Front end preparation rectangular metal frame structure 2 at prefabricated Rectangular Concrete frame bridge 1; Rectangular metal frame structure 2 rear ends are identical with the cross dimensions of Rectangular Concrete frame bridge 1 front end, and the reinforcing bar and rectangular metal frame structure 2 rear ends of Rectangular Concrete frame bridge 1 front end are integrally welded.The four sides of rectangular metal frame structure 2 is a box structure, firm resistance to compression, the huge load on ability bearing frame bridge formation or framework culvert top, the requirement of the normal operation of high-speed railway and speedway in the time of can satisfying subgrade construction.It around the front end of rectangular metal frame structure 2 dirt bed that wedge shape structure is convenient to directly cut roadbed.The inner chamber of rectangular metal frame structure 2 and Rectangular Concrete frame bridge 1 are the same all to be hollow, is convenient to excavation operation and transports the earth that digs out.Two blocks of side plates of rectangular metal frame structure 2 can lead to the outer wall sliding-contact that extends below with the base plate of said jacking Rectangular Concrete frame bridge guiding steel pipe 4 in the horizontal direction, avoid taking place to squint.
Embodiment 2Shown in accompanying drawing 1-6: the anterior hollow lumen of embodiment 1 said rectangular metal frame structure 2 can also be welded the grid steel plate 3 of the right-angled intersection in length and breadth that is uniformly distributed with; Vertical steel plate wherein or horizontal steel plate respectively are 1; Steel plate thickness is 12--22mm, is divided into four hole grill unit to the anterior inner chamber of rectangular metal frame structure 2; The exposed area of each grill unit be merely rectangular metal frame structure 2 inner chamber 1/4, the soil body is in stable status in little grill unit, can avoid taking place landslide and cause security incident.
Embodiment 3:The anterior hollow lumen of embodiment 1 said rectangular metal frame structure 2 can also be welded the grid steel plate 3 of the right-angled intersection in length and breadth that is uniformly distributed with; Wherein be uniformly distributed with vertical steel plate respectively be two with horizontal steel plate, be divided into nine hole grill unit to the anterior inner chamber of rectangular metal frame structure 2; The exposed area of each grill unit be merely rectangular metal frame structure 2 inner chamber 1/9, significantly reduce the unit exposed area, be applicable to the Rectangular Concrete frame bridge or the framework culvert of the big section of jacking.
Claims (3)
1. the guiding shield structure of a pushing tow Rectangular Concrete frame bridge; Comprise by engineering design prefabricated highway or the Rectangular Concrete frame bridge of railway and the base plate guiding steel pipe of jacking Rectangular Concrete frame bridge; It is characterized in that: at the front end preparation rectangular metal frame structure (2) of said prefabricated Rectangular Concrete frame bridge (1); Rectangular metal frame structure (2) rear end is identical with the cross dimensions of Rectangular Concrete frame bridge (1) front end, and engaged being integral; The four sides of rectangular metal frame structure (2) is a box structure, and inner chamber is hollow, is wedge shape structure around the front end; Two blocks of side plates of rectangular metal frame structure (2) are to the outer wall sliding-contact that extends below with the base plate of said jacking Rectangular Concrete frame bridge guiding steel pipe (4); The anterior hollow lumen of rectangular metal frame structure (2) is provided with the grid steel plate (3) of the right-angled intersection in length and breadth that is uniformly distributed with, and is divided into two holes, four holes, six holes or nine hole grill unit to the anterior inner chamber of rectangular metal frame structure (2).
2. according to the guiding shield structure of the said a kind of pushing tow Rectangular Concrete frame bridge of claim 1, it is characterized in that: the reinforcing bar and said rectangular metal frame structure (2) rear end of said Rectangular Concrete frame bridge (1) front end are integrally welded.
3. according to the guiding shield structure of the said a kind of pushing tow Rectangular Concrete frame bridge of claim 1, it is characterized in that: vertical steel plate of the grid steel plate (3) of the said right-angled intersection in length and breadth that is uniformly distributed with or horizontal steel plate respectively are the 1-3 piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100408604A CN102154985B (en) | 2011-02-21 | 2011-02-21 | Guide shield for pushing rectangular concrete frame bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100408604A CN102154985B (en) | 2011-02-21 | 2011-02-21 | Guide shield for pushing rectangular concrete frame bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102154985A CN102154985A (en) | 2011-08-17 |
| CN102154985B true CN102154985B (en) | 2012-05-23 |
Family
ID=44436639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100408604A Expired - Fee Related CN102154985B (en) | 2011-02-21 | 2011-02-21 | Guide shield for pushing rectangular concrete frame bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102154985B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015333B (en) * | 2012-12-12 | 2015-07-01 | 中铁二十四局集团有限公司 | Guiding structure for culvert section jacking and jacking method using guiding structure |
| CN106758825B (en) * | 2016-11-25 | 2018-07-31 | 沈阳铁道勘察设计院有限公司 | Oblique jacking framed bridge abnormal shape lead-in cable |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298276Y (en) * | 1997-04-08 | 1998-11-25 | 许宝根 | Combined load-carrying sliding backplate jacking lance structure |
| JP3316196B2 (en) * | 1999-09-03 | 2002-08-19 | 誠 植村 | Open shield method |
| JP2002180792A (en) * | 2000-12-12 | 2002-06-26 | Makoto Uemura | Concrete box body used in open shield method |
| CN201972090U (en) * | 2011-02-21 | 2011-09-14 | 李家稳 | Guide shield for pushing rectangular concrete frame bridge |
-
2011
- 2011-02-21 CN CN2011100408604A patent/CN102154985B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102154985A (en) | 2011-08-17 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20130221 |