CN102758387B - Reinforcing construction method for H-shaped steel line - Google Patents

Reinforcing construction method for H-shaped steel line Download PDF

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Publication number
CN102758387B
CN102758387B CN201110106206.9A CN201110106206A CN102758387B CN 102758387 B CN102758387 B CN 102758387B CN 201110106206 A CN201110106206 A CN 201110106206A CN 102758387 B CN102758387 B CN 102758387B
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China
Prior art keywords
shaped steel
crossbeam
iron
railway
deep foundation
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Application number
CN201110106206.9A
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Chinese (zh)
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CN102758387A (en
Inventor
张大虎
郑惠斌
周林
王建
张太平
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中铁六局集团有限公司
中铁六局集团北京铁路建设有限公司
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Priority to CN201110106206.9A priority Critical patent/CN102758387B/en
Publication of CN102758387A publication Critical patent/CN102758387A/en
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Publication of CN102758387B publication Critical patent/CN102758387B/en

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Abstract

The invention belongs to a construction method for railway line engineering, and in particular relates to a line reinforcing construction method for reinforcing the traditional railway line when a frame bridge is built. The line reinforcing construction method comprises the following steps of: 1. building four groups of deep foundation piles at the two sides of the traditional railway line, wherein each two groups of deep foundation piles are arranged at one side, and each group comprises multiple deep foundation piles which are arranged in the same direction as the railway; 2. penetrating crossbeam I-shaped steel through each railway sleeper gap under the railway line so that the crossbeam I-shaped steel vertically passes through the railway line and stretches across the deep foundation piles at the two sides of the railway; 3. laying two H-shaped steel on the crossbeam I-shaped steel above the two groups of deep foundation files at the same side of the railway line; 4. arranging square timbers between railway tracks and the H-shaped steel; and 5. dismantling line reinforcing systems and recovering the lines after a bridge is propped in place. The H-shaped steel is 900 H-shaped steel 4; and the crossbeam I-shaped steel is I45b I-shaped steel. The line reinforcing construction method can ensure the safety driving of the traditional railway line to the maximum limit under various complicated geological conditions.

Description

H shaped steel circuit reinforced construction method
Technical field
The invention belongs to a kind of railway project construction method, particularly a kind of track strengthening construction method of in the time building frame bridge, existing railway circuit being reinforced.
Background technology
Along with carrying out fast of Process of Urbanization Construction, many new road equipments arise at the historic moment.Some newly-built road equipment must pass below existing rail track, just must build frame bridge when lower rail wear circuit, makes rail track be positioned at the end face of frame bridge, and road is positioned at below frame bridge the orthogonal or oblique with rail track.In the time building frame bridge, the rail track of reinforcing in advance bridge top makes it not be subject to the impact of outside construction and keeps firm, is the requisite critical process of building frame bridge.The method of reinforcing at present rail track is mainly two kinds, a kind of for indulging the horizontal method of lifting of choosing; A kind of is just beam reinforcement means.
Vertical to choose the horizontal unsettled distance of circuit of lifting its reinforcing of method less, resists the ability of accident, for example, cave in, and just must block to stop train and carry out emergency repair, will affect so the normal operation of rail track, makes a very bad impression.
Although just beam reinforcement means can make circuit integrated hanging, limit the just reinforcing scope of beam, generally, just beam reinforcing scope is not more than 24m, and in particular cases maximum can only add and is affixed to 36m, and this has just limited the scale of highway greatly.
Summary of the invention
The object of the invention is existingly vertical choose the horizontal method of lifting and resist accident ability and the just defect of beam reinforcement means restriction highway scale in order to overcome, invent a kind of H shaped steel circuit reinforced construction method that can ensure to greatest extent the safe driving of existing railway circuit.
The object of the invention is to realize as follows: described H shaped steel circuit reinforced construction method, comprises the following steps:
One. build four groups of deep foundation stakes in the both sides of existing railway circuit, two groups of every sides, every group comprises multiple deep foundation stakes of arranging in the same way with railway;
Two. below rail track, between each sleeper space, wear crossbeam i iron, make vertically railroad crossing circuit across in the deep foundation stake in railway both sides of crossbeam i iron, wearing before crossbeam i iron, must first interstitial sleeper ballast be dug to passing crossbeam i iron; And adjust the spacing between existing sleeper; After whole crossbeam i iron wear, the space between the crossbeam i iron in four groups of deep foundation stakes and deep foundation stake is filled out and filled up with plank and timber wedge;
Three. above two groups of deep foundation stakes of rail track homonymy, above crossbeam i iron, lay two H shaped steel, first with clamping plate and bolt, two H shaped steel are fixed in to one, then H shaped steel and crossbeam i iron are fixed in to one with buckle and U-bolt;
Four. between rail and H shaped steel, the lumps of wood is set, prevents from causing existing line circuit traversing in pontic jack-in process;
Five. after pontic jacking is in place, track strengthening system is removed, recover circuit.
Described H shaped steel is 900H shaped steel; Crossbeam i iron is I45b i iron.
Good effect of the present invention is as follows: this track strengthening construction method can be under various complex geological conditions, and maximum constraints ensures the safe driving of existing railway circuit.
Brief description of the drawings
Fig. 1 is track strengthening layout plan of the present invention.
Fig. 2 is track strengthening skiagraph of the present invention.
In figure: 1 rail track 2 deep foundation stake 3 crossbeam i iron
4H shaped steel 5 rail 6 lumps of wood 7 pontics
Detailed description of the invention
As shown in Fig. 1 Fig. 2, described H shaped steel circuit reinforced construction method, comprises the following steps:
One. build four groups of deep foundation stakes 2 in the both sides of existing railway circuit 1, two groups of every sides, every group comprises multiple deep foundation stakes of arranging in the same way with railway;
Two. below rail track 1, between each sleeper space, wear crossbeam i iron 3, make vertically railroad crossing circuit 1 across in the deep foundation stake 2 in railway both sides of crossbeam i iron 3, wearing before crossbeam i iron 3, must first interstitial sleeper ballast be dug to passing crossbeam i iron 3; And adjust the spacing between existing sleeper; After whole crossbeam i iron 3 wear, the space between the crossbeam i iron 3 in four groups of deep foundation stakes 2 and deep foundation stake 2 is filled out and filled up with plank and timber wedge;
Three. above two groups of deep foundation stakes 2 of rail track 1 homonymy, above crossbeam i iron 3, lay two H shaped steel 4, first with clamping plate and bolt, two H shaped steel 4 are fixed in to one, then H shaped steel 4 and crossbeam i iron 3 are fixed in to one with buckle and U-bolt;
Four. between rail 5 and H shaped steel 4, the lumps of wood 6 is set, prevents from causing existing line circuit 1 traversing in pontic 7 jack-in process;
Five. after pontic 7 jackings are in place, track strengthening system is removed, recover circuit.
Described H shaped steel 4 is 900H shaped steel 4; Crossbeam i iron 3 is I45b i iron.
In concrete enforcement, the performance parameter of four described pull foundation piles will design with the size of pontic and soil property situation.

Claims (2)

1. a H shaped steel circuit reinforced construction method, is characterized in that comprising the following steps:
One. build four groups of deep foundation stakes in the both sides of existing railway circuit, two groups of every sides, every group comprises multiple deep foundation stakes of arranging in the same way with railway;
Two. below rail track, between each sleeper space, wear crossbeam i iron, make vertically railroad crossing circuit across in the deep foundation stake in railway both sides of crossbeam i iron, wearing before crossbeam i iron, must first interstitial sleeper ballast be dug to passing crossbeam i iron; And adjust the spacing between existing sleeper; After whole crossbeam i iron wear, the space between the crossbeam i iron in four groups of deep foundation stakes and deep foundation stake is filled out and filled up with plank and timber wedge;
Three. above two groups of deep foundation stakes of rail track homonymy, above crossbeam i iron, lay two H shaped steel, first with clamping plate and bolt, two H shaped steel are fixed in to one, then H shaped steel and crossbeam i iron are fixed in to one with buckle and U-bolt;
Four. between rail and H shaped steel, the lumps of wood is set, prevents from causing existing line circuit traversing in pontic jack-in process;
Five. after pontic jacking is in place, track strengthening system is removed, recover circuit.
2. H shaped steel circuit reinforced construction method according to claim 1, is characterized in that: described H shaped steel is 900H shaped steel; Crossbeam i iron is I45b i iron.
CN201110106206.9A 2011-04-27 2011-04-27 Reinforcing construction method for H-shaped steel line CN102758387B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110106206.9A CN102758387B (en) 2011-04-27 2011-04-27 Reinforcing construction method for H-shaped steel line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110106206.9A CN102758387B (en) 2011-04-27 2011-04-27 Reinforcing construction method for H-shaped steel line

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CN102758387A CN102758387A (en) 2012-10-31
CN102758387B true CN102758387B (en) 2014-10-01

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CN102926299B (en) * 2012-11-19 2014-07-16 房士杰 Railway elevating and fixing device and railway bridge and culvert construction method adopting railway elevating and fixing device
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
CN105019366A (en) * 2014-04-29 2015-11-04 中铁六局集团有限公司 Strengthening construction method for railway switch area line
CN104264591B (en) * 2014-10-30 2016-05-11 中铁六局集团有限公司 In the construction method of top, the larger region of circuit discrepancy in elevation bridge
CN105908579A (en) * 2016-04-27 2016-08-31 河北钢铁股份有限公司邯郸分公司 Railway track foundation online reinforcing method
CN105889624A (en) * 2016-04-27 2016-08-24 河北钢铁股份有限公司邯郸分公司 Construction method for underground pipeline passing through railway line
CN105951544B (en) * 2016-06-30 2017-07-04 中铁六局集团天津铁路建设有限公司 Circuit crossbeam reinforcing moveable support member
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
CN110374018A (en) * 2019-06-17 2019-10-25 中铁六局集团呼和浩特铁路建设有限公司 A kind of combined steel cross bearer sets up multispan just beam track strengthening method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700519A (en) * 1951-06-19 1955-01-25 Lloyd J Gilmore Mechanism for removing snow, sand, gravel, and other debris from railroad track constructions
US4265398A (en) * 1979-11-09 1981-05-05 True Temper Corporation Variable thickness mat for stress transition zones of railroad track crossings, switches, and the like, and method of use
CN201305800Y (en) * 2008-11-25 2009-09-09 中国第一冶金建设有限责任公司 Railroad reinforcing device used before constructing railroad track under underpass bridge
CN102011351A (en) * 2010-11-04 2011-04-13 北京首钢建设集团有限公司 Railway reinforced construction method

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