CN112878216A - Suspension type railway underpass box culvert jacking track reinforcing method - Google Patents
Suspension type railway underpass box culvert jacking track reinforcing method Download PDFInfo
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- CN112878216A CN112878216A CN202011370615.5A CN202011370615A CN112878216A CN 112878216 A CN112878216 A CN 112878216A CN 202011370615 A CN202011370615 A CN 202011370615A CN 112878216 A CN112878216 A CN 112878216A
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- track
- box culvert
- reinforcing
- shaped
- jacking
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
Abstract
The invention discloses a method for reinforcing a suspended railway underpass box culvert jacking track, which comprises the steps of drilling or digging holes on the foundation outside the track, constructing reinforcing piles, and constructing a supporting beam and a U-shaped suspender after the strength of the reinforcing piles meets the design requirement; then, welding a fixing plate at the bottom end of the U-shaped suspender, and during the non-operation period of the railway, enabling the cross beam to penetrate through the rail on the fixing plate and be fixed by bolts, wherein both ends of the cross beam are welded with the fixing plate; and finally, excavating a foundation pit between the reinforcing piles and the outer side of the track, manufacturing a prefabricated box culvert, pushing the prefabricated box culvert to a designed position by using a jack while excavating, filling broken stones between the top surface of the box culvert and the track, tightly squeezing, removing the reinforcing piles, the supporting beams, the cross beams, the bolts, the U-shaped hanging rods, the fixing plates and the like, and recycling part of components.
Description
Technical Field
The invention relates to the technical field of road bridges and culverts, in particular to a method for reinforcing a track by jacking a suspension type railway underpass box culvert.
Background
With the rapid development of economy and the continuous progress of science and technology, the railway construction in China is also rapidly developed, and bridges and culverts need to be built on business railway lines to meet the requirements of local traffic development. In the traditional construction field of the underpass frame bridge of the railway, railway tracks are often required to be blocked, so that the railway cannot normally run for a long time.
As the railway is responsible for economic aorta, reliable technical measures are needed to carry out the railway underpass construction in order to ensure the normal operation of the railway during construction. In order to overcome the technical problems, the suspension type railway underpass box culvert jacking rail reinforcing method is designed, and safe and effective reinforcement of railway underpass construction is realized by using box culverts, reinforcing piles, rails, supporting beams, cross beams, bolts, U-shaped suspenders, fixing plates and the like.
Disclosure of Invention
The invention aims to solve the problem of how to realize the normal construction of a downward-penetrating box culvert under the condition of not interrupting the normal operation of a railway, and provides a method for reinforcing a track by jacking the downward-penetrating box culvert of a suspension type railway.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a suspension type railway under wear box culvert jacking's track reinforcing method, includes uses box culvert, reinforcing pile, track, a supporting beam, crossbeam, bolt, U-shaped jib, fixed plate, its characterized in that includes following step:
A. drilling or digging holes on a foundation beyond 1m of the track, constructing a reinforcing pile, and constructing a supporting beam and a U-shaped suspender after the strength of the reinforcing pile meets the design requirement;
B. welding a fixing plate at the bottom end of the U-shaped suspender, penetrating a cross beam on the fixing plate through a rail during non-operation of a railway, fixing the cross beam by using bolts, and welding two ends of the cross beam with the fixing plate;
C. excavating a foundation pit between the reinforcing piles and the outer side of the track, prefabricating a box culvert in the foundation pit, wherein the box culvert is of a reinforced concrete structure, and pushing the box culvert to a designed position after applying a temporary supporting beam below the track;
D. filling broken stones between the top surface of the box culvert and the rail and compacting;
E. and removing the reinforcing piles, the supporting beams, the cross beams, the bolts, the U-shaped hanging rods and the fixing plates.
Preferably, the support beam is a reinforced concrete beam or an H-shaped steel beam.
Preferably, if the supporting beam is a reinforced concrete structure, the steel plates are embedded on the top surface of the supporting beam at certain intervals.
Preferably, the crossbeam adopts H shaped steel to make, a supporting beam is made for reinforced concrete roof beam or I-steel roof beam, the both ends of a supporting beam and the pre-buried steel sheet welding on reinforcement pile top form door type frame.
Preferably, the two ends of the supporting beam are respectively fixed at the top end of the reinforcing pile, the middle of the supporting beam penetrates through the plurality of U-shaped hanging rods, and bolt holes for connecting the rail and the cross beam are reserved on the rail.
Preferably, two ends of the cross beam are respectively welded on the fixing plate and extend outwards for a certain length; the fixing plate is made of channel steel, the U-shaped suspender is made of three sections of high-strength steel pipes, the U-shaped suspender is welded end to end into a U shape and penetrates through the supporting beam, and two ends of the U-shaped suspender are welded with the fixing plate; and welding two ends of the fixing plate with the U-shaped hanging rod.
Preferably, in the step C, when a foundation pit is excavated between the reinforcing piles and the outer side of the track, the box culvert is pushed to the designed position by using a jack while excavating.
Preferably, the reinforcing pile adopts manual hole digging or mechanical hole forming, is distributed on two sides of the pushing area, is inserted into a reinforcement cage for pouring concrete for forming, a steel plate is embedded in the pile top of the reinforcing pile, and the pile top of the reinforcing pile is higher than the top surface elevation of the track.
Preferably, the U-shaped suspension rods penetrate through the support beam at equal intervals and are welded with the top surface of the support beam.
Preferably, the box culvert pushing construction is implemented after the track reinforcement treatment is finished, and the bolts are used for fixedly connecting the cross beam and the track.
Compared with the prior art, the invention provides a method for reinforcing a suspended railway underpass box culvert jacking track, which has the following beneficial effects:
through using box culvert, reinforced pile, track, a supporting beam, crossbeam, bolt, U-shaped jib, fixed plate, guaranteed under the circumstances of the normal operation of uninterrupted railway, realize wearing box culvert normal construction down, simple structure and partial part repeatedly usable.
Drawings
Fig. 1 is a schematic perspective view of a construction method of a suspension type railway underpass box culvert jacking track reinforcing method provided by the invention;
fig. 2 is a schematic front view of the construction of the method for reinforcing a suspended railway underpass box culvert jacking track according to the present invention.
In the figure: 1. the box culvert 2, the reinforced piles 3, the rails 4, the supporting beams 5, the cross beams 6, the bolts 7, the U-shaped suspension rods 8 and the fixing plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example one
Referring to fig. 1-2, a method for reinforcing a track by jacking a box culvert penetrating under a suspension railway comprises the steps of using the box culvert 1, reinforcing piles 2, a track 3, a supporting beam 4, a cross beam 5, bolts 6, a U-shaped suspender 7 and a fixing plate 8, and is characterized by comprising the following steps:
A. drilling or digging holes on the foundation of the track 3 beyond one meter, constructing the reinforcing pile 2, and constructing the supporting beam 4 and the U-shaped suspender 7 after the strength of the reinforcing pile 2 meets the design requirement;
B. a fixing plate 8 is welded at the bottom end of the U-shaped suspender 7, the cross beam 5 penetrates through the track 3 on the fixing plate 8 and is fixed by a bolt 6 during the non-operation period of the railway, and both ends of the cross beam 5 are welded with the fixing plate 8;
C. excavation foundation ditch between 3 outsides on track, the reinforced pile, prefabricated box culvert 1 in the foundation ditch, box culvert 1 is reinforced concrete structure, and after 3 below on track applyed interim supporting beam 5, the foundation ditch is dug simultaneously and the jack will 1 top of box culvert pushes away to the design position.
D. Filling broken stones between the top surface of the box culvert 1 and the track 3 and compacting;
E. and (3) removing the reinforcing piles 2, the supporting beams 4, the cross beams 5, the bolts 6, the U-shaped hanging rods 7 and the fixing plates 8.
Example two
On the basis of the first embodiment, the supporting beam 4 is a reinforced concrete beam or an H-shaped steel beam, the cross beam 5 is made of H-shaped steel, the supporting beam 4 is made of a reinforced concrete beam or an i-shaped steel beam, steel plates are embedded on the top surface of the supporting beam at certain intervals, two ends of the supporting beam 4 are welded with the embedded steel plates on the top ends of the reinforcing piles 2 to form a portal frame, two ends of the supporting beam 4 are respectively fixed to the top ends of the reinforcing piles 2, a plurality of U-shaped hanging rods 7 penetrate through the middle of the supporting beam, bolt holes for connecting the rail 3 and the cross beam 5 are reserved on the rail 3, and two ends of the cross beam 5 are respectively welded on the fixing; the fixing plate 8 is made of channel steel, the U-shaped suspender 7 is made of three sections of high-strength steel pipes, the U-shaped suspender is welded end to form a U shape and penetrates through the supporting beam 4, and two ends of the U-shaped suspender are welded with the fixing plate 8; and welding the two ends of the fixing plate 8 with the U-shaped suspension rods 7, embedding a steel plate on the pile top of the reinforcing pile 2, wherein the pile top of the reinforcing pile 2 is higher than the top surface elevation of the track 3.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a suspension type railway under wear box culvert jacking's track reinforcing method, includes uses box culvert (1), reinforced pile (2), track (3), a supporting beam (4), crossbeam (5), bolt (6), U-shaped jib (7), fixed plate (8), its characterized in that, includes following step:
A. drilling or digging holes on the foundation beyond 1m of the track (3), constructing the reinforced pile (2), and constructing the supporting beam (4) and the U-shaped suspender (7) after the strength of the reinforced pile (2) meets the design requirement;
B. a fixing plate (8) is welded at the bottom end of a U-shaped suspender (7), a cross beam (5) penetrates through a track (3) on the fixing plate (8) and is fixed by a bolt (6) during the non-operation period of a railway, and two ends of the cross beam (5) are welded with the fixing plate (8).
C. Excavating a foundation pit between the reinforcing piles and the outer side of the track (3), prefabricating a box culvert (1) in the foundation pit, wherein the box culvert (1) is of a reinforced concrete structure, and pushing the box culvert (1) to a designed position after applying a temporary supporting beam (5) below the track (3);
D. broken stones are filled between the top surface of the box culvert (1) and the track (3) to be compacted,
E. and (3) dismantling the reinforcing piles (2), the supporting beams (4), the cross beams (5), the bolts (6), the U-shaped suspension rods (7) and the fixing plates (8).
2. A method of reinforcing a suspended railway underpass box culvert jacking track as claimed in claim 1, wherein said support beams (4) are reinforced concrete beams or H-section steel beams.
3. The method for reinforcing the suspended railway underpass box culvert jacking track as claimed in claim 1, wherein if the supporting beam is a reinforced concrete structure, the top surface of the supporting beam is embedded with steel plates at certain intervals.
4. The method for reinforcing the suspended railway underpass box culvert jacking track according to claim 1, wherein the cross beam (5) is made of H-shaped steel, the supporting beam (4) is made of reinforced concrete beams or I-shaped steel beams, and two ends of the supporting beam (4) are welded with embedded steel plates at the top ends of the reinforcing piles (2) to form a portal frame.
5. A method for reinforcing a suspended railway underpass box culvert jacking track as claimed in claim 1, wherein the two ends of the supporting beam (4) are respectively fixed on the top ends of the reinforcing piles (2), the middle part of the supporting beam passes through a plurality of U-shaped suspension rods (7), and bolt holes for connecting the track (3) and the cross beam (5) are reserved on the track (3).
6. The method for reinforcing the track pushed by the box culvert penetrated below the suspended railway according to claim 1, wherein the two ends of the cross beam (5) are respectively welded on the fixing plate (8) and extend outwards for a certain length; the fixing plate (8) is made of channel steel, the U-shaped suspender (7) is made of three sections of high-strength steel pipes, the U-shaped suspender is welded end to form a U shape and penetrates through the supporting beam (4), and two ends of the U-shaped suspender are welded with the fixing plate (8); and welding two ends of the fixing plate (8) with the U-shaped hanging rod (7).
7. The method for reinforcing the track by jacking the box culvert penetrating through the railway downwards according to the claim 1, wherein in the step C, when a foundation pit is excavated between the reinforcing piles on the outer side of the track (3), the box culvert (1) is jacked to a designed position by using a jack while excavating.
8. The method for reinforcing the suspended railway underpass box culvert jacking track according to claim 1, wherein the reinforcing piles (2) are formed by manual hole digging or mechanical hole forming, distributed on two sides of the jacking area, inserted into a steel reinforcement cage for pouring concrete for forming, steel plates are embedded in pile tops of the reinforcing piles (2), and the pile tops of the reinforcing piles (2) are higher than the top surface elevation of the track (3).
9. A method of reinforcing a suspended railway underpass box culvert jacking track as claimed in claim 1, wherein said U-shaped booms (7) are passed through the support beams (4) at equal intervals and welded to the top surfaces of the support beams (4).
10. The method for reinforcing the track by jacking the box culvert penetrating under the suspension railway according to claim 1, wherein the jacking construction of the box culvert (1) is implemented after the track (3) is reinforced, and the bolts (6) are used for fixedly connecting the cross beam (5) and the track (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011370615.5A CN112878216A (en) | 2020-11-30 | 2020-11-30 | Suspension type railway underpass box culvert jacking track reinforcing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011370615.5A CN112878216A (en) | 2020-11-30 | 2020-11-30 | Suspension type railway underpass box culvert jacking track reinforcing method |
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| CN112878216A true CN112878216A (en) | 2021-06-01 |
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| CN202011370615.5A Pending CN112878216A (en) | 2020-11-30 | 2020-11-30 | Suspension type railway underpass box culvert jacking track reinforcing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030069A (en) * | 2022-06-20 | 2022-09-09 | 中国水利水电第三工程局有限公司 | Diversion box culvert construction method for penetrating through existing rail lower base body |
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| KR20100120544A (en) * | 2009-05-06 | 2010-11-16 | 재 술 나 | L-type side ditch for road |
| CN101963061A (en) * | 2010-10-19 | 2011-02-02 | 浙江省建工集团有限责任公司 | Construction method for underground box culvert of existing railway line |
| FR2979927A1 (en) * | 2011-09-13 | 2013-03-15 | Mustapha Aboulcaid | PROCESS FOR THE CONSTRUCTION OF WORKS, IN PARTICULAR PASSAGES UNDER RAILWAYS OR SIMILAR OPERATIONS |
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| CN108560337A (en) * | 2018-04-17 | 2018-09-21 | 中铁二十四局集团有限公司 | It is a kind of can hanging quick vertical shift just beam construction method |
| CN211596789U (en) * | 2020-01-03 | 2020-09-29 | 合肥市市政设计研究总院有限公司 | Foundation pit supporting structure for suspension protection of large-diameter and large-weight pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115030069A (en) * | 2022-06-20 | 2022-09-09 | 中国水利水电第三工程局有限公司 | Diversion box culvert construction method for penetrating through existing rail lower base body |
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Application publication date: 20210601 |