CN112663405A - Railway underpass box culvert jacking track reinforcing method - Google Patents
Railway underpass box culvert jacking track reinforcing method Download PDFInfo
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- CN112663405A CN112663405A CN202011369884.XA CN202011369884A CN112663405A CN 112663405 A CN112663405 A CN 112663405A CN 202011369884 A CN202011369884 A CN 202011369884A CN 112663405 A CN112663405 A CN 112663405A
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- box culvert
- sleeper beam
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 21
- 241001669679 Eleotris Species 0.000 claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 19
- 239000004575 stone Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention discloses a railway underpass box culvert jacking track reinforcing method, which belongs to the field of road bridges and culverts, is suitable for box culvert jacking construction for ensuring normal operation of railways, and has the advantages of reliable technology and higher safety, during construction, holes are drilled or dug on a track foundation, supporting piles are poured, and after the strength of the supporting piles meets the design requirements, crown beams are constructed; then, during the non-operation period of the railway, a sleeper beam is penetrated between support sleepers (permanent structures) below the railway track, holes are formed in flange plates at the bottom of the track, and the sleeper beam and the holes are connected into a whole by bolts; and finally, excavating a foundation pit on the track foundation which is perpendicular to the track and distributed between the supporting piles, constructing a prefabricated box culvert, and filling broken stones between the box culvert and the track to be tightly squeezed after the pushing box culvert vertically penetrates through the sleeper beam track to the designed position. And removing the sleeper beam and the crown beam, wherein the sleeper beam can be recycled.
Description
Technical Field
The invention relates to the technical field of road bridges and culverts, in particular to a method for reinforcing a railway underpass box culvert jacking track.
Background
In the field of railway underpass bridge and culvert construction, special measures are required to ensure the railway operation safety in order to ensure the normal operation of the railway during construction. In order to overcome the technical problems, the method for reinforcing the railway underpass box culvert jacking track is designed, and safe construction of the railway underpass box culvert is realized by using a track foundation, supporting piles, crown beams, sleeper beams, tracks, bolts, broken stones and the like.
Disclosure of Invention
The invention aims to ensure that the normal construction of a box culvert penetrating downwards is realized under the condition of not interrupting the normal operation of a railway by using a track foundation, a supporting pile, a crown beam, a sleeper beam, a track, a bolt and broken stones, and provides a method for reinforcing the railway box culvert penetrating downwards and jacking the track.
In order to achieve the purpose, the invention adopts the following technical scheme:
a railway underpass box culvert jacking track reinforcing method uses a track foundation, a supporting pile, a crown beam, a sleeper beam, a track and a bolt during reinforcing, wherein the track foundation contains broken stones and soil rock masses and is used for transmitting the running load of an upper railway, and the method comprises the following steps:
A. excavating soil mass within the range of the track foundation to carry out box culvert jacking construction;
B. the gravel is filled between the box culvert pushed in place and the sleeper beam;
C. the two ends of the sleeper beam are placed or welded on the crown beam, the top surface of the sleeper beam symmetrically supports two rails, and the sleeper beam is arranged at a certain interval along the construction range along the railway;
D. the crown beams are symmetrically distributed at the top ends of the supporting piles at two sides of the railway,
E. the top end of the supporting pile is connected with the crown beam into a whole through an embedded steel plate or an embedded bolt;
F. the supporting piles are distributed on the outer side of the track, mechanical or manual hole forming is adopted, and then a steel reinforcement cage is inserted for pouring concrete;
G. and finally, fixing the track on the sleeper beam through bolts.
Preferably, the crushed stone is machine-made crushed stone with the grain diameter of about 31.5 mm.
Preferably, the sleeper beam is I-shaped steel or H-shaped steel.
Preferably, the crown beam is of a reinforced concrete structure or H-shaped steel, and the top end of the support pile is connected with the steel bars or the H-shaped steel in the crown beam into a whole through embedded steel plates or embedded bolts.
Preferably, the support piles are distributed at a distance of 1m away from the track and are arranged at a certain interval along the railway.
Preferably, the pile top of the support pile is welded or mechanically connected with a pre-buried steel plate or a pre-buried bolt.
Preferably, the two ends of the sleeper beam are placed or welded on the crown beam and extend outwards for a certain length.
Preferably, the sleeper beam must be constructed before the box culvert is pushed, the sleeper beam penetrates below the track at a certain distance, the sleeper beam and the track are connected into a whole by using bolts, and the sleeper beam construction period is carried out during the non-operation period of the railway.
Compared with the prior art, the invention provides a railway underpass box culvert jacking track reinforcing method, which has the following beneficial effects:
the invention can realize the safe construction of the underpass railway box culvert only by using the rail foundation, the supporting piles, the crown beam, the sleeper beam, the rail, the bolts and the broken stones, and has low overall cost, high efficiency, reliable technology and high safety factor.
Drawings
FIG. 1 is a schematic perspective view of a method for reinforcing a railway through box culvert and jacking rails during construction according to the present invention;
FIG. 2: the invention provides a front view structure schematic diagram of a reinforcing method for jacking a railway through a box culvert into a track under a railway during construction;
in the figure: 1. the track comprises a track foundation 2, supporting piles 3, a crown beam 4, a sleeper beam 5, track holes 6, bolts 7 and broken stones.
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.
Referring to fig. 1-2, a railway underpass box culvert jacking track reinforcing method, during reinforcing, a track foundation 1, a supporting pile 2, a crown beam 3, a sleeper beam 4, a track 5 and bolts 6 are used, wherein the track foundation 1 comprises broken stones 7 and soil rock masses and is used for transmitting upper railway running load, and the method comprises the following steps:
A. excavating soil within the range of the track foundation 1 to carry out box culvert jacking construction;
B. the gravel 7 is filled between the box culvert pushed in place and the sleeper beam 4;
C. the two ends of the sleeper beam 4 are placed or welded on the crown beam 3, the top surface of the sleeper beam symmetrically supports two rails 5, and the sleeper beam is arranged at a certain interval in the construction range along the railway;
D. the crown beams 3 are symmetrically distributed at the top ends of the supporting piles 2 at two sides of the railway,
E. the top end of the support pile 2 is connected with the crown beam 3 into a whole through an embedded steel plate or an embedded bolt;
F. the supporting piles 2 are distributed on the outer side of the track 5, mechanical or manual hole forming is adopted, and then a steel reinforcement cage is inserted for pouring concrete;
G. finally, the rails 5 are fixed to the bolster 4 by bolts 6.
Example two
On the basis of the first embodiment, the broken stones 7 are machine-made broken stones with the grain size of about 31.5mm, the sleeper beam 4 is an I-shaped steel, the crown beam 3 is of a reinforced concrete structure, the top ends of the support piles 2 are connected with steel bars in the crown beam 3 into a whole through embedded steel plates, the support piles 2 are distributed beyond 5 meters away from a rail and are arranged along the railway at a certain interval, the embedded steel plates at the pile tops of the support piles 2 are welded with the crown beam 3, two ends of the sleeper beam 4 are placed on the crown beam 3 and extend outwards for a certain length, the sleeper beam 4 needs to be constructed before box culvert pushing, the sleeper beam penetrates below the rail 5 at a certain interval, the sleeper beam 4 is connected into a whole through bolts 6, and the construction of the sleeper beam 4 is carried out during the non-operation period of the railway.
EXAMPLE III
On the basis of the first embodiment, the broken stones 7 are machine-made broken stones with the grain size of about 31.5mm, the sleeper beams 4 are H-shaped steel, the crown beams 3 are H-shaped steel, the top ends of the support piles 2 are connected with the H-shaped steel in the crown beams 3 into a whole through embedded bolts, the support piles 2 are distributed beyond 5 meters away from the track and are arranged at a certain interval along the railway, the pile tops of the support piles 2 are embedded with bolts and are mechanically connected with the crown beams 3, two ends of the sleeper beams 4 are welded on the crown beams 3 and extend outwards for a certain length, the sleeper beams 4 need to be constructed before box culvert pushing and penetrate below the track 5 at a certain interval, the two are connected into a whole through bolts 6, and the construction period of the sleeper beams 4 needs to be carried out during the non-operation period of the railway.
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 (8)
1. The utility model provides a railway under wear box culvert jacking track reinforcing method, uses track basis (1), support stake (2), crown beam (3), sleeper beam (4), track (5), bolt (6) when consolidating, track basis (1) contains rubble (7) and soil rock mass for transmit upper portion railway load of traveling, its characterized in that includes the following step:
A. excavating soil within the range of the track foundation (1) to carry out box culvert jacking construction;
B. the gravel (7) is filled between the box culvert pushed in place and the sleeper beam (4);
C. the two ends of the sleeper beam (4) are placed or welded on the crown beam (3), the top surface of the sleeper beam symmetrically supports two rails (5), and the sleeper beam is arranged at a certain interval in the construction range along the railway;
D. the crown beams (3) are symmetrically distributed at the top ends of the supporting piles (2) at two sides of the railway,
E. the top end of the supporting pile (2) is connected with the crown beam (3) into a whole through an embedded steel plate or an embedded bolt;
F. the supporting piles (2) are distributed on the outer side of the track (5), mechanical or manual hole forming is adopted, and then a steel reinforcement cage is inserted for pouring concrete;
G. and finally, fixing the track (5) on the sleeper beam (4) through a bolt (6).
2. The railway underpass box culvert jacking track reinforcing method according to claim 1, characterized in that the crushed stones (7) are machine-made crushed stones with a grain size of about 31.5 mm.
3. The railway underpass box culvert jacking track reinforcing method according to claim 1, characterized in that the sleeper beam (4) is I-shaped steel or H-shaped steel.
4. The railway underpass box culvert jacking track reinforcing method as claimed in claim 1, wherein the crown beam (3) is of a reinforced concrete structure or H-shaped steel, and the top end of the support pile (2) is integrally connected with the steel bars or the H-shaped steel in the crown beam (3) through embedded steel plates or embedded bolts.
5. The railway underpass box culvert jacking track reinforcing method according to claim 1, characterized in that the support piles (2) are distributed at a distance of 1m away from the track (5) and at intervals along the railway.
6. The railway underpass box culvert jacking rail reinforcing method as claimed in claim 4, wherein the supporting piles (2) are welded or mechanically connected with the crown beams (3) by pre-buried steel plates or pre-buried bolts at pile tops.
7. The railway underpass box culvert jacking track reinforcing method as claimed in claim 1, wherein both ends of the sleeper beam (4) are laid on or welded to the crown beam (3) and are extended by a certain length.
8. The railway underpass box culvert jacking track reinforcing method as claimed in claim 1, wherein the sleeper beam (4) must be constructed before box culvert jacking, cross under the track (5) at a certain interval, connect the two into a whole by using bolts (6), and the sleeper beam (4) construction should be carried out during the railway non-operation period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369884.XA CN112663405A (en) | 2020-11-30 | 2020-11-30 | Railway underpass box culvert jacking track reinforcing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369884.XA CN112663405A (en) | 2020-11-30 | 2020-11-30 | Railway underpass box culvert jacking track reinforcing method |
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| CN112663405A true CN112663405A (en) | 2021-04-16 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831873A (en) * | 2010-05-25 | 2010-09-15 | 北京城建设计研究总院有限责任公司 | Temporary bridge covered excavation method for constructing box culvert below traffic ground line of operating track |
| CN101838955A (en) * | 2010-05-31 | 2010-09-22 | 中铁二十一局集团有限公司 | Existing line transverse lifting strengthening method and structure |
| CN102926299A (en) * | 2012-11-19 | 2013-02-13 | 房士杰 | Railway elevating and fixing device and railway bridge and culvert construction method adopting railway elevating and fixing device |
| KR101372261B1 (en) * | 2013-01-23 | 2014-03-10 | 현대알루미늄(주) | Box form structure for culvert construction |
| CN106012878A (en) * | 2016-08-03 | 2016-10-12 | 长沙楚泰建筑劳务有限公司 | Construction method for continuous type construction auxiliary girder in jacking of railway box culvert and device for implementing construction method |
| CN110241744A (en) * | 2019-06-18 | 2019-09-17 | 中国十七冶集团有限公司 | The construction method of jacking frame box culvert is worn under a kind of railway |
| CN111676819A (en) * | 2020-06-08 | 2020-09-18 | 中铁六局集团太原铁路建设有限公司 | Jacking construction method for combined type temporary beam continuous reinforced line large-span frame structure bridge |
| CN111779025A (en) * | 2020-06-19 | 2020-10-16 | 中国一冶集团有限公司 | In-situ protection structure crossing foundation pit municipal pipe network box culvert and construction method |
-
2020
- 2020-11-30 CN CN202011369884.XA patent/CN112663405A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831873A (en) * | 2010-05-25 | 2010-09-15 | 北京城建设计研究总院有限责任公司 | Temporary bridge covered excavation method for constructing box culvert below traffic ground line of operating track |
| CN101838955A (en) * | 2010-05-31 | 2010-09-22 | 中铁二十一局集团有限公司 | Existing line transverse lifting strengthening method and structure |
| CN102926299A (en) * | 2012-11-19 | 2013-02-13 | 房士杰 | Railway elevating and fixing device and railway bridge and culvert construction method adopting railway elevating and fixing device |
| KR101372261B1 (en) * | 2013-01-23 | 2014-03-10 | 현대알루미늄(주) | Box form structure for culvert construction |
| CN106012878A (en) * | 2016-08-03 | 2016-10-12 | 长沙楚泰建筑劳务有限公司 | Construction method for continuous type construction auxiliary girder in jacking of railway box culvert and device for implementing construction method |
| CN110241744A (en) * | 2019-06-18 | 2019-09-17 | 中国十七冶集团有限公司 | The construction method of jacking frame box culvert is worn under a kind of railway |
| CN111676819A (en) * | 2020-06-08 | 2020-09-18 | 中铁六局集团太原铁路建设有限公司 | Jacking construction method for combined type temporary beam continuous reinforced line large-span frame structure bridge |
| CN111779025A (en) * | 2020-06-19 | 2020-10-16 | 中国一冶集团有限公司 | In-situ protection structure crossing foundation pit municipal pipe network box culvert and construction method |
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Application publication date: 20210416 |
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