CN107447672A - The construction method of jacking casing under a kind of hump line - Google Patents
The construction method of jacking casing under a kind of hump line Download PDFInfo
- Publication number
- CN107447672A CN107447672A CN201710822281.2A CN201710822281A CN107447672A CN 107447672 A CN107447672 A CN 107447672A CN 201710822281 A CN201710822281 A CN 201710822281A CN 107447672 A CN107447672 A CN 107447672A
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- barricade
- prefabricated
- jacking
- hump
- casing
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- 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
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The construction method of jacking casing under a kind of hump line, it uses the prefabricated barricade on box top, then traditionally jacking casing, then prefabricated barricade is connected with each other into integral mode with former rubble bulkhead and constructed；Or first prefabricated barricade prefabricated section, then traditionally jacking casing, then the embedded bar on barricade prefabricated section and box top is connected with each other, finally the integral mode in barricade prefabricated section both ends and the interconnection of former rubble bulkhead is constructed.Time under hump line provided by the invention needed for the construction method of jacking casing is short, therefore the influence of railway operation will can be minimized, and prefabricated barricade can be connected rapidly with former rubble bulkhead it is integral, therefore can ensure barricade be not in because of car slipping and caused by the phenomenon that expands outwardly.In addition, this construction method is reasonable in design, construction cost is low and effect is good.
Description
Technical field
The invention belongs to rail facility technical field of construction, more particularly to a kind of construction party of jacking casing under hump line
Method.
Background technology
With the rapid development of city-building, increasing urban road wears existing railway circuit under needing, often at present
Method is jacking.This method is will first to be reinforced by the existing railway circuit of jacking influence area, is then utilized
Jack will form the casing of more piece reinforced concrete structure of frame bridge from existing railway circuit side as jacking device
Predetermined position in foundation ditch in shoveling below jacking to existing railway circuit.When frame bridge to be placed is located exactly at railway
When wearing a hump line under the bottle-neck section and needs of hinge marshalling yard, because railway strand, track switch are more at this, and hump
The both sides of line have the discrepancy in elevation, while off-period is shorter, during this period in place and must also complete the jacking of casing whole both
There is rail track recovery, it can be seen that the time short difficulty of this engineering is big, therefore how to ensure safety and shorten construction
Time, and ensure that construction operation is completed within off-period turns into problem of the pendulum in face of those skilled in the art.
In railway systems, hump line, which is generally in railway terminal marshalling yard, is used for the shunting services such as train disintegration, marshalling
Facility, its be ground build just as the koppie of camel peak antiform shape, there is the appropriate gradient, both sides position is set respectively
There is the barricade piled up together by slabstone, place an iron railway above, because it is higher by ormal station scene, be similar to hump, therefore gain the name.
When carrying out shunting service using hump line, first push train to hump line from side by shunter, when the car group or car of foremost
During close to summit, hitch is unclamped, at this moment can utilizes the gravity of train itself, along slope from opposite side automatic shunting to shunting
On the scheduled circuit of field, so as to greatly improve the efficiency of shunting service.But because the both sides of hump line are equipped with barricade, and
Hump line do not allow again for a long time close, if therefore the jacking of casing had both been completed within shorter off-period, again by jacking
The rubble bulkhead heap at place puzzles, and existing jacking construction method can not then complete this engineering.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of construction method of jacking casing under hump line.
In order to achieve the above object, the construction method of jacking casing includes carrying out in order under hump line provided by the invention
The following steps：
1) first using by 3-5-3 hanger rails and the I-steel track strengthening system that beam is formed in length and breadth on hump line by jacking
The existing railway circuit of influence area is reinforced, and removes the rubble bulkhead in the region；
2) in the foundation ditch positioned at above-mentioned existing railway circuit side prefabricated more piece reinforced concrete structure casing 2, in advance
The position for corresponding to barricade during system on roof box remains for connecting in advance the reinforcing bar of barricade prefabricated section；
3) at the same time, in the barricade prefabricated section of prefabricated reinforced concrete structure outside the venue, and it is pre- on barricade prefabricated section
Bury the bottom reinforcement bars for connecting reserved steel bar on casing；
4) use traditional jacking method, by the use of jack be used as jacking device, by composition frame bridge more piece casing from
Predetermined position in foundation ditch in shoveling below jacking to existing railway circuit；
5) reserved steel bar on the bottom reinforcement bars and roof box on barricade prefabricated section is welded together, polylith barricade is pre-
Clamp dog is set in a manner of end to end, using being arranged in barricade prefabricated section end on lateral surface between adjacent barricade prefabricated section
Reinforcing bar or steel plate welding and be connected with each other and prefabricated barricade is made, then by the both ends of prefabricated barricade with by jacking influence area outside
Former rubble bulkhead at lateral edges is connected with each other integral；
6) beam reinforcement system in length and breadth and 353 button rails are removed, then below the existing railway circuit by jacking influence area
Railway ballast is filled, finally recovers the operation of existing railway circuit, thus completes whole work progress.
The width of described barricade prefabricated section is identical with former rubble bulkhead width, and length determines according to on-site actual situations.
The construction method of jacking casing includes the following steps carried out in order under hump line provided by the invention：
1) first using by 3-5-3 hanger rails and the I-steel track strengthening system that beam is formed in length and breadth on hump line by jacking
The existing railway circuit of influence area is reinforced, and removes the rubble bulkhead in the region；
2) in the foundation ditch positioned at above-mentioned existing railway circuit side prefabricated more piece reinforced concrete structure casing, it is prefabricated
During the position reserved steel bar of barricade is corresponded on roof box；
3) after the concrete in casing reaches predetermined strength requirement, prefabricated hump barricade is made at above-mentioned reserved steel bar
Steel reinforcement cage, and install on the outside of steel reinforcement cage the template of prefabricated hump barricade；
4) casting concrete in the template of above-mentioned prefabricated hump barricade, prefabricated hump gear is made after concrete setting
Wall；
5) use traditional jacking method, by the use of jack be used as jacking device, by composition frame bridge more piece casing from
Predetermined position in foundation ditch in shoveling below jacking to existing railway circuit, now prefabricated hump barricade and former rubble bulkhead
It is generally aligned in the same plane；
6) by the both ends of prefabricated hump barricade with being connected with each other by the former rubble bulkhead at the outer ledge of jacking influence area
It is integral；
7) beam reinforcement system in length and breadth and 353 button rails are removed, then below the existing railway circuit by jacking influence area
Railway ballast is filled, finally recovers the operation of existing railway circuit, thus completes whole work progress.
The width of described prefabricated hump barricade is identical with former rubble bulkhead width, and elevation of top is apart from existing railway circuit
0.2 meter of sleeper bottom.
Time under hump line provided by the invention needed for the construction method of jacking casing is short, therefore railway will can be transported
The influence of battalion minimizes, and prefabricated barricade can be connected rapidly integral with former rubble bulkhead, therefore can ensure barricade
Be not in because of car slipping and caused by the phenomenon that expands outwardly.In addition, this construction method is reasonable in design, construction cost is low and effect
It is good.
Brief description of the drawings
Fig. 1 is the construction method work progress top view of jacking casing under hump line provided by the invention；
Fig. 2 is the construction method work progress front view of jacking casing under hump line provided by the invention；
Embodiment
The construction method of jacking casing under hump line provided by the invention is carried out with specific embodiment below in conjunction with the accompanying drawings
Detailed description.
Embodiment 1：
As shown in figure 1, the construction method of jacking casing includes carrying out down in order under the hump line that the present embodiment provides
Row step：
1) first using it is traditional by 3-5-3 hanger rails and the I-steel track strengthening system that beam is formed in length and breadth on hump line
Reinforced by the existing railway circuit 1 of jacking influence area, and remove the rubble bulkhead in the region；
2) in the foundation ditch positioned at the above-mentioned side of existing railway circuit 1 prefabricated more piece reinforced concrete structure casing 2, in advance
The position for corresponding to barricade during system on the top plate of casing 2 remains for connecting in advance the reinforcing bar of barricade prefabricated section；
3) at the same time, in the barricade prefabricated section of prefabricated reinforced concrete structure outside the venue, width and the original of barricade prefabricated section
Rubble bulkhead width is identical, and length determines according to on-site actual situations, and pre-buried for connecting casing 2 on barricade prefabricated section
The bottom reinforcement bars of upper reserved steel bar；
4) use traditional jacking method, by the use of jack be used as jacking device, by composition frame bridge more piece casing 2 from
Predetermined position in foundation ditch in shoveling below jacking to existing railway circuit 1；
5) bottom reinforcement bars on barricade prefabricated section and the reserved steel bar on the top plate of casing 2 are welded together, polylith barricade
Prefabricated section is set in a manner of end to end, using being arranged in barricade prefabricated section end on lateral surface between adjacent barricade prefabricated section
Reinforcing bar or steel plate welding and be connected with each other and prefabricated barricade 3 is made, then by the both ends of prefabricated barricade 3 with by the jacking zone of influence
Former rubble bulkhead at overseas lateral edges is connected with each other integral；
6) beam reinforcement system in length and breadth and 353 button rails are removed, then below the existing railway circuit 1 by jacking influence area
Railway ballast is filled, finally recovers the operation of existing railway circuit 1, thus completes whole work progress.
Embodiment 2：
As shown in figure 1, the construction method of jacking casing includes carrying out down in order under the hump line that the present embodiment provides
Row step：
1) first using it is traditional by 3-5-3 hanger rails and the I-steel track strengthening system that beam is formed in length and breadth on hump line
Reinforced by the existing railway circuit 1 of jacking influence area, and remove the rubble bulkhead in the region；
2) in the foundation ditch positioned at the above-mentioned side of existing railway circuit 1 prefabricated more piece reinforced concrete structure casing 2, in advance
The position reserved steel bar of barricade is corresponded to during system on the top plate of casing 2；
3) after the concrete in casing 2 reaches predetermined strength requirement, prefabricated hump gear is made at above-mentioned reserved steel bar
The steel reinforcement cage of wall 4, and install on the outside of steel reinforcement cage the template of prefabricated hump barricade 4；
4) casting concrete in the template of above-mentioned prefabricated hump barricade 4, prefabricated hump gear is made after concrete setting
Wall 4, the width of prefabricated hump barricade 4 is identical with former rubble bulkhead width, and elevation of top is apart from the sleeper bottom of existing railway circuit 1
0.2 meter；
5) use traditional jacking method, by the use of jack be used as jacking device, by composition frame bridge more piece casing 2 from
In shoveling, jacking is to the predetermined position of the lower section of existing railway circuit 1 in foundation ditch, and now prefabricated hump barricade 4 and former slabstone are kept off
Wall is generally aligned in the same plane；
6) by the both ends of prefabricated hump barricade 4 with being connected with each other by the former rubble bulkhead at the outer ledge of jacking influence area
It is integral；
7) beam reinforcement system in length and breadth and 353 button rails are removed, then below the existing railway circuit 1 by jacking influence area
Railway ballast is filled, finally recovers the operation of existing railway circuit 1, thus completes whole work progress.
Hump line is worn under certain jacking casing requirement of engineering, off-period is only 72 hours, and can not be removed by jacking shadow
The existing railway circuit in region is rung, the present inventor is constructed using above-mentioned construction method, and completes construction task on schedule.
Claims (4)
- A kind of 1. construction method of jacking casing under hump line, it is characterised in that：Described construction method includes carrying out in order The following steps：1) first using by 3-5-3 hanger rails and the I-steel track strengthening system that beam is formed in length and breadth on being influenceed on hump line by jacking The existing railway circuit (1) in region is reinforced, and removes the rubble bulkhead in the region；2) in the foundation ditch positioned at above-mentioned existing railway circuit (1) side prefabricated more piece reinforced concrete structure casing (2), in advance The position for corresponding to barricade during system on casing (2) top plate remains for connecting in advance the reinforcing bar of barricade prefabricated section；3) at the same time, in the barricade prefabricated section of prefabricated reinforced concrete structure outside the venue, and the pre-buried use on barricade prefabricated section In the bottom reinforcement bars of reserved steel bar on connection casing (2)；4) traditional jacking method is used, jacking device is used as by the use of jack, by the more piece casing (2) of composition frame bridge from base Predetermined position in hole in shoveling below jacking to existing railway circuit (1)；5) bottom reinforcement bars on barricade prefabricated section and the reserved steel bar on casing (2) top plate are welded together, polylith barricade is pre- Clamp dog is set in a manner of end to end, using being arranged in barricade prefabricated section end on lateral surface between adjacent barricade prefabricated section Reinforcing bar or steel plate weld and are connected with each other and prefabricated barricade (3) is made, then by the both ends of prefabricated barricade (3) with being influenceed by jacking The former rubble bulkhead of areas outside edge is connected with each other integral；6) beam reinforcement system in length and breadth and 353 button rails are removed, is then filled out below the existing railway circuit (1) by jacking influence area Railway ballast is filled, finally recovers the operation of existing railway circuit (1), thus completes whole work progress.
- 2. the construction method of jacking casing under hump line according to claim 1, it is characterised in that：Described barricade is prefabricated The width of block is identical with former rubble bulkhead width, and length determines according to on-site actual situations.
- A kind of 3. construction method of jacking casing under hump line, it is characterised in that：Described construction method includes carrying out in order The following steps：1) first using by 3-5-3 hanger rails and the I-steel track strengthening system that beam is formed in length and breadth on being influenceed on hump line by jacking The existing railway circuit (1) in region is reinforced, and removes the rubble bulkhead in the region；2) in the foundation ditch positioned at above-mentioned existing railway circuit (1) side prefabricated more piece reinforced concrete structure casing (2), in advance The position reserved steel bar of barricade is corresponded to during system on casing (2) top plate；3) after the concrete in casing (2) reaches predetermined strength requirement, prefabricated hump barricade is made at above-mentioned reserved steel bar (4) steel reinforcement cage, and install on the outside of steel reinforcement cage the template of prefabricated hump barricade (4)；4) casting concrete in the template of above-mentioned prefabricated hump barricade (4), is made prefabricated hump barricade after concrete setting (4)；5) traditional jacking method is used, jacking device is used as by the use of jack, by the more piece casing (2) of composition frame bridge from base Predetermined position in hole in shoveling below jacking to existing railway circuit (1), now prefabricated hump barricade (4) and former slabstone Barricade is generally aligned in the same plane；6) by the both ends of prefabricated hump barricade (4) with being interconnected to by the former rubble bulkhead at the outer ledge of jacking influence area It is overall；7) beam reinforcement system in length and breadth and 353 button rails are removed, is then filled out below the existing railway circuit (1) by jacking influence area Railway ballast is filled, finally recovers the operation of existing railway circuit (1), thus completes whole work progress.
- 4. the construction method of jacking casing under hump line according to claim 1, it is characterised in that：Described prefabricated hump The width of barricade (4) is identical with former rubble bulkhead width, and elevation of top is apart from 0.2 meter of the sleeper bottom of existing railway circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710822281.2A CN107447672B (en) | 2017-09-13 | 2017-09-13 | The construction method of jacking babinet under a kind of hump line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710822281.2A CN107447672B (en) | 2017-09-13 | 2017-09-13 | The construction method of jacking babinet under a kind of hump line |
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| CN107447672A true CN107447672A (en) | 2017-12-08 |
| CN107447672B CN107447672B (en) | 2018-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086063A (en) * | 2018-02-05 | 2018-05-29 | 石家庄铁道大学 | The subgrade reinforcing device and method of hump line line style is safeguarded in a kind of jacking bridge construction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343861A (en) * | 2008-08-22 | 2009-01-14 | 中铁六局集团有限公司 | Construction method for replacing old frame bridge by new frame bridge in existing railway lines |
| KR20150068785A (en) * | 2013-12-12 | 2015-06-22 | 한국건설기술연구원 | Slab gap adjustment apparatus with longitudinal moving and bridge construction method therewith |
| CN106544934A (en) * | 2016-11-08 | 2017-03-29 | 中铁六局集团天津铁路建设有限公司 | A kind of railway shunting hump line reinforced construction method |
-
2017
- 2017-09-13 CN CN201710822281.2A patent/CN107447672B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343861A (en) * | 2008-08-22 | 2009-01-14 | 中铁六局集团有限公司 | Construction method for replacing old frame bridge by new frame bridge in existing railway lines |
| KR20150068785A (en) * | 2013-12-12 | 2015-06-22 | 한국건설기술연구원 | Slab gap adjustment apparatus with longitudinal moving and bridge construction method therewith |
| CN106544934A (en) * | 2016-11-08 | 2017-03-29 | 中铁六局集团天津铁路建设有限公司 | A kind of railway shunting hump line reinforced construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086063A (en) * | 2018-02-05 | 2018-05-29 | 石家庄铁道大学 | The subgrade reinforcing device and method of hump line line style is safeguarded in a kind of jacking bridge construction |
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| CN107447672B (en) | 2018-10-12 |
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