CN106274556B - A kind of contact net bar changes shifting method - Google Patents

A kind of contact net bar changes shifting method Download PDF

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Publication number
CN106274556B
CN106274556B CN201610644902.8A CN201610644902A CN106274556B CN 106274556 B CN106274556 B CN 106274556B CN 201610644902 A CN201610644902 A CN 201610644902A CN 106274556 B CN106274556 B CN 106274556B
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China
Prior art keywords
contact net
net bar
frame bridge
bar
soft
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CN201610644902.8A
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CN106274556A (en
Inventor
于奇建
陈巳龙
刘伟
李少鹏
黄亚洲
李强
梁波
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China Railway Sixth Group Co Ltd
Tianjin Railway Construction Co Ltd of China Railway Sixth Group Co Ltd
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China Railway Sixth Group Co Ltd
Tianjin Railway Construction Co Ltd of China Railway Sixth Group Co Ltd
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Application filed by China Railway Sixth Group Co Ltd, Tianjin Railway Construction Co Ltd of China Railway Sixth Group Co Ltd filed Critical China Railway Sixth Group Co Ltd
Priority to CN201610644902.8A priority Critical patent/CN106274556B/en
Publication of CN106274556A publication Critical patent/CN106274556A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60MPOWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00Power supply lines for contact with collector on vehicle
    • B60M1/12Trolley lines; Accessories therefor
    • B60M1/28Manufacturing or repairing trolley lines
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22Sockets or holders for poles or posts
    • E04H12/2284Means for adjusting the orientation of the post or pole

Abstract

A kind of contact net bar changes shifting method comprising before jacked frame bridge, by the soft corner for being implanted into Guan Liang across contact net bar lower end of steel truss;In rail track both sides, corresponding two steel truss are soft connects a bracing wire temporarily at the top of contact net bar;Contact net high-voltage line on frame bridge is moved in bracing wire, is removed;4) operation for restoring rail track carries out Framed underpass bridge by traditional jacking method;It removes steel truss is soft and is hoisted on frame bridge from fender pile and Guan Liang across contact net bar, and its lower end and anchor support basis are fitted together;Supporting rod finally is installed in the steel truss soft upper end across contact net bar, and contact net high-voltage line is arranged on supporting rod and etc..Effect of the present invention:Stability is good;Easy construction can reduce the triviality for changing transposing net-fault bar, danger.The influence of railway normal operation will can be minimized, reduce cost.Solve the problems, such as frame bridge large span can not railroad crossing, it is technologically advanced.

Description

A kind of contact net bar changes shifting method
Technical field
The invention belongs to railway bridges and culverts technical field of construction, more particularly to a kind of undercrossing tunnel Framed underpass bridge region Contact net bar changes shifting method.
Background technology
With the continuous development of urban construction, the case where town road railroad crossing, is on the increase, and plans that width is continuous It increases.Mainly mainly by frame bridge and it is located at come railroad crossing, undercrossing tunnel tunnel in such a way that undercrossing tunnel is genuine at present The composition of leading the way of frame bridge front and back end, wherein frame bridge mostly use jacking method and are arranged 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, multiple contact net bars 2 are arranged in the both sides bit interval of rail track 1, and the upper end of contact net bar 2 is installed supporting rod 3, connect Net-fault high-voltage line 4 is arranged on supporting rod 3, for powering for electric train.According to the rules, it is connect used by electric railway Critical distance between net-fault bar 2 is 65m, but when frame bridge span is more than that 60m or contact net bar 2 are located exactly at the frame for waiting for jacking When above building bridge, in order to ensure railway normal operation, then need that certain existing contact net bars 2 change shifting or reinforce protecting Shield.Most common at present to change there are two types of shifting methods, a kind of method is that the contact net bar 2 of concrete structure is changed pan position temporarily, After the completion of waiting for Framed underpass bridge construction, steelframe bar is installed in the original location again;Another method is in construction by concrete knot The contact net bar 2 of structure is changed to steelframe bar, and it is made to be integrally formed with railway reinforced system, after the completion of waiting for jacking construction, then Original position installs steelframe bar.The shortcomings that former construction method is cumbersome, needs former contact net bar 2 changing pan position first, so Restore again afterwards, operating expenses is higher.The shortcomings that latter construction method, is affected by Framed underpass bridge, in case of roadbed caves in Or there is " pricking head " or " new line " phenomenon in frame bridge, then contact net bar changes greatly, therefore dangerous also larger.
Invention content
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of contact net bars to change shifting method.
In order to achieve the above object, it includes the following step carried out in order that contact net bar provided by the invention, which changes shifting method, Suddenly:
1) before jacked frame bridge, one group of L is respectively set on the railway bed of frame bridge front and back end place both sides to be placed Shape armored concrete fender pile and the armored concrete Guan Liang at the top of this group of fender pile are protected as railway bed, are being arranged During fender pile and Guan Liang, in certain side at the top of the Guan Liang of corner pre-buried more screw rods and bolt, and by steel truss Frame is soft to be connected across the lower end of contact net bar with above-mentioned pre embedded bolt and bolt, thus by steel truss it is soft across contact net bar with Fender pile and Guan Liang are linked to be an entirety, to increase stability;
2) suspend the operation of rail track, corresponding two steel truss are soft across contact net bar top in rail track both sides Portion's piece bracing wire of connection temporarily;
3) the contact net high-voltage line above frame bridge to be placed is moved in above-mentioned bracing wire, then utilizes lifting track Vehicle is removed and is transported to the contact net bar at this;
4) restore the operation of rail track, and carry out the jacking of frame bridge by traditional jacking method;
5) after the completion of waiting for Framed underpass bridge, the operation of rail track is again paused for, then the former contact net at the top of frame bridge Perforating and anchor support basis, make itself and frame bridge form an entirety at bar setting, then that above-mentioned steel truss is soft across connecing Net-fault bar is removed from fender pile and Guan Liang, is hoisted on frame bridge using lifting railcar later, and by its lower end with it is above-mentioned Anchor support basis fits together;
6) finally soft across the upper end of contact net bar installation supporting rod in steel truss, and contact net high-voltage line is arranged and is being propped up On strut, restore the operation of rail track, thus completes entire contact net bar and change shifting work progress.
Pre-buried 8 bolts and nut at the top of the Guan Liang, and be uniformly arranged.
Contact net bar provided by the invention changes shifting method and has the advantages that:
1, select existing fender pile and Guan Liang soft across the basis of contact net bar as steel truss, rigidity preferably, is faced forever In conjunction with, therefore stability is good.
2, easy construction can reduce the triviality for changing transposing net-fault bar, danger.
3, in Framed underpass bridge work progress, contact net remains able to normal operation, therefore can will be normal to railway The influence of operation minimizes, and reduces cost.
4, solve the problems, such as frame bridge large span can not railroad crossing, it is technologically advanced, thus have promotional value.
Description of the drawings
Fig. 1 is a kind of electric railway planar structure schematic diagram of prior art.
Fig. 2 is the electric railway transverse sectional view of prior art.
Fig. 3 is to change the preceding construction site plane of Framed underpass bridge during shifting method using contact net bar provided by the invention Figure.
Fig. 4 is to change the preceding construction site transverse cutting of Framed underpass bridge during shifting method using contact net bar provided by the invention Face schematic diagram.
Fig. 5 is to change during shifting method construction site plane after Framed underpass bridge using contact net bar provided by the invention Figure.
Fig. 6 is to change during shifting method construction site transverse cutting after Framed underpass bridge using contact net bar provided by the invention Face schematic diagram.
Specific implementation mode
Change shifting method to contact net bar provided by the invention in the following with reference to the drawings and specific embodiments to be described in detail.With The identical component of prior art uses identical drawing reference numeral.
As shown in Fig. 3-Fig. 6, it includes the following steps carried out in order that contact net bar provided by the invention, which changes shifting method,:
1) before jacked frame bridge 5, one group is respectively set on the railway bed of 5 front and back end of frame bridge place both sides to be placed L-shaped armored concrete fender pile 6 and the armored concrete Guan Liang 7 at the top of this group of fender pile 6 are protected as railway bed, It is arranged during fender pile 6 and Guan Liang 7, the pre-buried more screw rods in 7 top of Guan Liang and bolt positioned at corner in certain side, and It is connected with above-mentioned pre embedded bolt and bolt across the lower end of contact net bar 8 by steel truss is soft, it is thus that steel truss is soft across connecing Net-fault bar 8 is linked to be an entirety with fender pile 6 and Guan Liang 7, to increase stability;
2) suspend the operation of rail track 1, corresponding two steel truss are soft across contact net bar in 1 both sides of rail track Piece bracing wire 9 of connection temporarily of 8 tops;
3) the contact net high-voltage line 4 above frame bridge 5 to be placed is moved in above-mentioned bracing wire 9, then utilizes lifting Railcar is removed and is transported to the contact net bar 2 at this;
4) restore the operation of rail track 1, and carry out the jacking of frame bridge 5 by traditional jacking method;
5) after the completion of waiting for 5 jacking of frame bridge, the operation of rail track 1 is again paused for, then in the former contact in 5 top of frame bridge Perforating and anchor support basis, make it form an entirety with frame bridge 5, then by the soft cross of above-mentioned steel truss at 2 setting of net bar Bridging net-fault bar 8 is removed from fender pile 6 and Guan Liang 7, is hoisted on frame bridge 5 using lifting railcar later, and will be under it End is fitted together with above-mentioned anchor support basis;
6) finally soft across the upper end of contact net bar 8 installation supporting rod 3 in steel truss, and contact net high-voltage line 4 is arranged On supporting rod 3, restores the operation of rail track 1, thus complete entire contact net bar and change shifting work progress.
Pre-buried 8 screw rods in 7 top of Guan Liang and bolt, and be uniformly arranged.

Claims (2)

1. a kind of contact net bar changes shifting method, it is characterised in that:It includes carrying out in order that the contact net bar, which changes shifting method, The following steps:
1) before jacked frame bridge (5), one group is respectively set on the railway bed of frame bridge (5) front and back end place both sides to be placed L-shaped armored concrete fender pile (6) and the armored concrete Guan Liang (7) at the top of this group of fender pile (6) are used as railway bed Protection, during fender pile (6) and Guan Liang (7) are set, pre-buried more at the top of the Guan Liang (7) positioned at corner of certain side Screw rod and bolt, and the soft lower end across contact net bar (8) of steel truss is connected with above-mentioned pre embedded bolt and bolt, thus will Steel truss is soft to be linked to be an entirety across contact net bar (8) and fender pile (6) and Guan Liang (7), to increase stability;
2) operation of pause rail track (1), in rail track (1) both sides, corresponding two steel truss are soft across contact net bar (8) top connects a bracing wire (9) temporarily;
3) the contact net high-voltage line (4) being located above frame bridge to be placed (5) is moved in above-mentioned bracing wire (9), is then utilized Weight railcar is removed and is transported to the contact net bar (2) at this;
4) restore the operation of rail track (1), and carry out the jacking of frame bridge (5) by traditional jacking method;
5) after the completion of waiting for frame bridge (5) jacking, the operation of rail track (1) is again paused for, then original connects at the top of frame bridge (5) Perforating and anchor support basis, make it form an entirety with frame bridge (5), then by above-mentioned steel truss at net-fault bar (2) setting Frame is soft to be removed across contact net bar (8) from fender pile (6) and Guan Liang (7), is hoisted to frame bridge using lifting railcar later (5) on, and its lower end and above-mentioned anchor support basis are fitted together;
6) finally soft across the upper end of contact net bar (8) installation supporting rod (3) in steel truss, and contact net high-voltage line (4) is set It sets on supporting rod (3), restores the operation of rail track (1), thus complete entire contact net bar and change shifting work progress.
2. contact net bar according to claim 1 changes shifting method, it is characterised in that:Pre-buried 8 at the top of the Guan Liang (7) Screw rod and bolt, and be uniformly arranged.
CN201610644902.8A 2016-08-05 2016-08-05 A kind of contact net bar changes shifting method Active CN106274556B (en)

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107558375B (en) * 2017-09-12 2018-12-11 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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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

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JP5405337B2 (en) * 2010-02-01 2014-02-05 株式会社フジタ Construction method of railway RC ramen structure viaduct
CN101831873B (en) * 2010-05-25 2011-11-09 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
CN102979041B (en) * 2012-12-26 2015-01-21 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
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Publication number Priority date Publication date Assignee Title
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

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