CN106274556A - A kind of contact net bar changes shifting method - Google Patents
A kind of contact net bar changes shifting method Download PDFInfo
- Publication number
- CN106274556A CN106274556A CN201610644902.8A CN201610644902A CN106274556A CN 106274556 A CN106274556 A CN 106274556A CN 201610644902 A CN201610644902 A CN 201610644902A CN 106274556 A CN106274556 A CN 106274556A
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- CN
- China
- Prior art keywords
- contact net
- bar
- frame bridge
- net bar
- soft
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/28—Manufacturing or repairing trolley lines
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/22—Sockets or holders for poles or posts
- E04H12/2284—Means for adjusting the orientation of the post or pole
Abstract
A kind of contact net bar changes shifting method, before it includes jacked frame bridge, by soft for the steel truss corner implanting Guan Liang across contact net bar bottom；The two piece steel truss corresponding in rail track both sides are soft connects a bracing wire across contact net masthead portion temporarily；The contact net high-voltage line that will be located on frame bridge moves in bracing wire, removes；4) recover the operation of rail track, carry out Framed underpass bridge by tradition jacking method；Soft for steel truss come of age from fender pile across contact net bar is removed beam and be hoisted on frame bridge, and its lower end is fitted together with anchor support base set；Finally soft across the upper end of contact net bar installation support bar at steel truss, and contact net high-voltage line is arranged on the first-class step of support bar.Effect of the present invention: good stability；Easy construction, it is possible to reduce and change the triviality of transposing net-fault bar, danger.Cost can be reduced by the impact of railway normal operation is minimized.Solve frame bridge large span cannot the problem of railroad crossing, advanced technology.
Description
Technical field
The invention belongs to railway bridges and culverts technical field of construction, particularly relate to a kind of undercrossing tunnel Framed underpass bridge region
Contact net bar changes shifting method.
Background technology
Along with the development of urban construction, the situation of town road railroad crossing is on the increase, and planning width is continuous
Strengthen.The mode currently mainly using undercrossing tunnel genuine carrys out railroad crossing, and undercrossing tunnel is genuine mainly by frame bridge be positioned at
The composition of leading the way of frame bridge front and back end, wherein frame bridge many employings jacking method is arranged on below railway.Fig. 1 is a kind of existing skill
The electric railway planar structure schematic diagram of art.Fig. 2 is the electric railway transverse sectional view of prior art.Such as Fig. 1, figure
Shown in 2, the both sides bit interval of rail track 1 arranges multiple contact net bar 2, and support bar 3 is installed in the upper end of contact net bar 2, connects
Net-fault high-voltage line 4 is arranged on support bar 3, for powering for electric train.According to the rules, what electric railway was used connects
Critical distance between net-fault bar 2 is 65m, but when frame bridge span is located exactly at the frame treating jacking more than 60m or contact net bar 2
Time above bridge formation, in order to ensure railway normal operation, then need the contact net bar 2 that some is existing changes shifting or reinforces guarantor
Protect.The most the most frequently used shifting way that changes has two kinds, and a kind of method is that the contact net bar 2 of xoncrete structure is changed pan position temporarily,
After Framed underpass bridge has been constructed, steelframe bar is installed the most in situ；Another kind of method is to be tied by concrete when construction
The contact net bar 2 of structure is replaced by steelframe bar, and makes it be integrally forming with railway reinforced system, after jacking construction completes, then
Original position installs steelframe bar.The shortcoming of former construction method is cumbersome, first needs former contact net bar 2 is changed pan position, so
After recover again, operating expenses is higher.The shortcoming of latter construction method is to be affected relatively greatly by Framed underpass bridge, in case of roadbed caves in
Or " bundle head " or " new line " phenomenon occurs in frame bridge, then contact net bar changes greatly, and therefore danger is the biggest.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of contact net bar and change shifting method.
In order to achieve the above object, the contact net bar that the present invention provides changes the following step that shifting method includes carrying out in order
Rapid:
1), before jacked frame bridge, the railway bed of both sides, place to be placed, frame bridge front and back end is respectively provided with one group of L
Shape armored concrete fender pile and be positioned at the armored concrete Guan Liang at this group fender pile top and protect as railway bed, is being arranged
Fender pile is come of age during beam, at the pre-buried many screw rods in the hat back portion being positioned at corner and the bolt of certain side, and by steel truss
Frame is soft to be connected with above-mentioned pre embedded bolt and bolt across the lower end of contact net bar, thus by soft for steel truss across contact net bar with
Fender pile beam of coming of age is linked to be an entirety, to increase stability；
2) suspending the operation of rail track, the two piece steel truss corresponding in rail track both sides are soft across contact net masthead
Portion connects a bracing wire temporarily；
3) will be located in the contact net high-voltage line above frame bridge to be placed to move to, in above-mentioned bracing wire, then utilize lifting track
Contact net bar at this is removed and is transported by car；
4) recover the operation of rail track, and carry out the jacking of frame bridge by tradition jacking method；
5) after Framed underpass bridge completes, the operation of rail track is again paused for, then at the former contact net in frame bridge top
Bar arranges place's perforating anchor support basis so that it is form an entirety with frame bridge, then by soft for above-mentioned steel truss across connecing
Net-fault bar is come of age from fender pile and is removed beam, utilizes lifting railcar to be hoisted on frame bridge afterwards, and by its lower end with above-mentioned
Anchor support base set is fitted together；
6) finally at the soft support bar of installing across the upper end of contact net bar of steel truss, and contact net high-voltage line is arranged on
On strut, recover the operation of rail track, thus complete whole contact net bar and change shifting work progress.
Pre-buried 8 bolts in described hat back portion and nut, and be uniformly arranged.
The contact net bar that the present invention provides changes shifting method and has the advantages that
1, selecting existing fender pile beam of coming of age as the soft basis across contact net bar of steel truss, rigidity is preferable, forever faces
In conjunction with, therefore good stability.
2, easy construction, it is possible to reduce and change the triviality of transposing net-fault bar, danger.
3, in Framed underpass bridge work progress, contact net remains able to properly functioning, therefore, it is possible to will be normal to railway
The impact of operation is minimized, and reduces cost.
4, solve frame bridge large span cannot the problem of railroad crossing, advanced technology, therefore there is promotional value.
Accompanying drawing explanation
Fig. 1 is the electric railway planar structure schematic diagram of a kind of prior art.
Fig. 2 is the electric railway transverse sectional view of prior art.
The contact net bar that Fig. 3 provides for using the present invention changes Framed underpass bridge front job site plane during shifting method
Figure.
The contact net bar that Fig. 4 provides for using the present invention changes Framed underpass bridge front job site transverse cutting during shifting method
Face schematic diagram.
Fig. 5 is that the contact net bar using the present invention to provide changes during shifting method job site plane after Framed underpass bridge
Figure.
Fig. 6 is that the contact net bar using the present invention to provide changes during shifting method job site transverse cutting after Framed underpass bridge
Face schematic diagram.
Detailed description of the invention
The contact net bar provided the present invention with specific embodiment below in conjunction with the accompanying drawings changes shifting method and is described in detail.With
The parts that prior art is identical use identical drawing reference numeral.
As shown in Fig. 3 Fig. 6, the contact net bar that the present invention provides changes the following step that shifting method includes carrying out in order:
1), before jacked frame bridge 5, the railway bed of both sides, place to be placed, frame bridge 5 front and back end is respectively provided with one group
L-shaped armored concrete fender pile 6 and be positioned at this group fender pile 6 top armored concrete hat beam 7 as railway bed protect,
Fender pile 6 is set and comes of age during beam 7, at the pre-buried many screw rods in hat beam 7 top being positioned at corner and the bolt of certain side, and
It is connected soft for steel truss with above-mentioned pre embedded bolt and bolt across the lower end of contact net bar 8, thus by soft for steel truss across connecing
Net-fault bar 8 and fender pile 6 beam 7 of coming of age is linked to be an entirety, to increase stability；
2) suspending the operation of rail track 1, the two piece steel truss corresponding in rail track 1 both sides are soft across contact net bar
8 tops connect a bracing wire 9 temporarily；
3) will be located in the contact net high-voltage line 4 above frame bridge 5 to be placed to move to, in above-mentioned bracing wire 9, then utilize lifting
Contact net bar 2 at this is removed and is transported by railcar；
4) recover the operation of rail track 1, and carry out the jacking of frame bridge 5 by tradition jacking method；
5) after frame bridge 5 jacking completes, the operation of rail track 1 is again paused for, then in the former contact in frame bridge 5 top
Net bar 2 arranges place's perforating anchor support basis so that it is form an entirety with frame bridge 5, then by soft for above-mentioned steel truss horizontal stroke
Bridging net-fault bar 8 is come of age from fender pile 6 and is removed beam 7, utilizes lifting railcar to be hoisted on frame bridge 5 afterwards, and by under it
End is fitted together with above-mentioned anchor support base set；
6) finally soft across the upper end of contact net bar 8 installation support bar 3 at steel truss, and contact net high-voltage line 4 is arranged
On support bar 3, recover the operation of rail track 1, thus complete whole contact net bar and change shifting work progress.
Pre-buried 8 screw rods in described hat beam 7 top and bolt, and be uniformly arranged.
Claims (2)
1. a contact net bar changes shifting method, it is characterised in that: described contact net bar changes what shifting method included carrying out in order
The following step:
1), before jacked frame bridge (5), the railway bed of both sides, place to be placed, frame bridge (5) front and back end is respectively provided with one group
L-shaped armored concrete fender pile (6) and be positioned at the armored concrete Guan Liang (7) at this group fender pile (6) top as railway bed
Protection, comes of age during beam (7), at pre-buried many of Guan Liang (7) top being positioned at corner of certain side arranging fender pile (6)
Screw rod and bolt, and soft for the steel truss lower end across contact net bar (8) is connected with above-mentioned pre-embedded bolt and nut, thus will
Steel truss is soft is linked to be an entirety, to increase stability across contact net bar (8) and fender pile (6) beam (7) of coming of age；
2) suspending the operation of rail track (1), the two piece steel truss corresponding in rail track (1) both sides are soft across contact net bar
(8) top connects a bracing wire (9) temporarily；
3) the contact net high-voltage line (4) that will be located in frame bridge to be placed (5) top moves to, in above-mentioned bracing wire (9), then utilize
Contact net bar (2) at this is removed and is transported by weight railcar；
4) recover the operation of rail track (1), and carry out the jacking of frame bridge (5) by tradition jacking method；
5) after frame bridge (5) jacking completes, again pause for the operation of rail track (1), then connect frame bridge (5) top is former
Net-fault bar (2) arranges place's perforating anchor support basis so that it is form an entirety with frame bridge (5), then by above-mentioned steel truss
Frame soft coming of age from fender pile (6) across contact net bar (8) is removed beam (7), utilizes lifting railcar to be hoisted to frame bridge afterwards
(5) on, and its lower end is fitted together with above-mentioned anchor support base set；
6) finally soft across the upper end of contact net bar (8) installation support bar (3) at steel truss, and contact net high-voltage line (4) is set
Put on support bar (3), recover the operation of rail track (1), thus complete whole contact net bar and change shifting work progress.
Contact net bar the most according to claim 1 changes shifting method, it is characterised in that: pre-buried 8 of described Guan Liang (7) top
Bolt and nut, and be uniformly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644902.8A CN106274556B (en) | 2016-08-05 | 2016-08-05 | A kind of contact net bar changes shifting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644902.8A CN106274556B (en) | 2016-08-05 | 2016-08-05 | A kind of contact net bar changes shifting method |
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| Publication Number | Publication Date |
|---|---|
| CN106274556A true CN106274556A (en) | 2017-01-04 |
| CN106274556B CN106274556B (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610644902.8A Active CN106274556B (en) | 2016-08-05 | 2016-08-05 | A kind of contact net bar changes shifting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107558375A (en) * | 2017-09-12 | 2018-01-09 | 中铁六局集团有限公司 | The construction method that contact net bar is torn down and reconstructed during a kind of Framed underpass bridge |
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| 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 |
| CN202247688U (en) * | 2011-09-23 | 2012-05-30 | 中铁十一局集团有限公司 | Aerodynamic force prevention protecting shed frame for overpassing of high-speed railways |
| CN102979041A (en) * | 2012-12-26 | 2013-03-20 | 中铁七局集团郑州工程有限公司 | Soft overhead reinforcing jacking method for construction of span box bridge of jacking block of underpass turnout group of railway |
| CN103362073A (en) * | 2013-08-08 | 2013-10-23 | 中铁六局集团天津铁路建设有限公司 | Method for pushing frame bridge |
| JP5405337B2 (en) * | 2010-02-01 | 2014-02-05 | 株式会社フジタ | Construction method of railway RC ramen structure viaduct |
| CN103643640A (en) * | 2013-12-19 | 2014-03-19 | 中铁六局集团天津铁路建设有限公司 | Jacking-first and line-reinforcement-second jacking construction method for frame bridge |
| CN203855866U (en) * | 2014-06-03 | 2014-10-01 | 中铁二十局集团第四工程有限公司 | Large-span frame bridge overhead roof with beams convenient to construct |
| CN105464008A (en) * | 2016-01-12 | 2016-04-06 | 中铁第五勘察设计院集团有限公司 | Large longitudinal beam system line reinforcement construction device and method |
-
2016
- 2016-08-05 CN CN201610644902.8A patent/CN106274556B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5405337B2 (en) * | 2010-02-01 | 2014-02-05 | 株式会社フジタ | Construction method of railway RC ramen structure viaduct |
| 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 |
| CN202247688U (en) * | 2011-09-23 | 2012-05-30 | 中铁十一局集团有限公司 | Aerodynamic force prevention protecting shed frame for overpassing of high-speed railways |
| CN102979041A (en) * | 2012-12-26 | 2013-03-20 | 中铁七局集团郑州工程有限公司 | Soft overhead reinforcing jacking method for construction of span box bridge of jacking block of underpass turnout group of railway |
| CN103362073A (en) * | 2013-08-08 | 2013-10-23 | 中铁六局集团天津铁路建设有限公司 | Method for pushing frame bridge |
| CN103643640A (en) * | 2013-12-19 | 2014-03-19 | 中铁六局集团天津铁路建设有限公司 | Jacking-first and line-reinforcement-second jacking construction method for frame bridge |
| CN203855866U (en) * | 2014-06-03 | 2014-10-01 | 中铁二十局集团第四工程有限公司 | Large-span frame bridge overhead roof with beams convenient to construct |
| CN105464008A (en) * | 2016-01-12 | 2016-04-06 | 中铁第五勘察设计院集团有限公司 | Large longitudinal beam system line reinforcement construction device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107558375A (en) * | 2017-09-12 | 2018-01-09 | 中铁六局集团有限公司 | The construction method that contact net bar is torn down and reconstructed during a kind of Framed underpass bridge |
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| Publication number | Publication date |
|---|---|
| CN106274556B (en) | 2018-07-20 |
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