CN101691814A - Technology for binding steel bars of track bed slab of ballastless track of bridge - Google Patents

Abstract

The invention relates to a technology for binding steel bars of a track bed slab of a ballastless track of a bridge, which comprises the steps of placing the steel bar with the length of about 2.7m and the phi of 20 between a middle boss and an outer boss of each unit block for playing the role of a pad and facilitating the binding of an insulating card; making two small square wooden strips of 2cm*4cm with the length of 3m in advance for straightening the pre-bound insulating card; using a red marker pen for marking the positions of transverse steel bars on the steel bars of a truss of a sleeper and longitudinal steel bars; firstly lifting a track panel, taking out the square wood strips for being used as the pads, and further mounting a screw rod regulator for carrying out rough adjustment; binding the steel bars at a bottom layer, spreading the steel bars at a middle layer, assembling the track panel, binding the steel bars at the middle layer, and binding the steel bars at an upper layer; and welding a ground terminal and then tensing the insulating cards in the periphery of the ground terminal after fine adjustment. Therefore, the technology can solve the problems that the speed of binding the steel bars of the track bed slab of the ballastless track of the bridge section is slow and the construction progress is seriously affected. The technology can improve the working efficiency, reduce the cost of a project and shorten the construction period of the project.

Description

A kind of technology for binding steel bars of track bed slab of ballastless track of bridge

Technical field

The present invention relates to a kind of technology for binding steel bars of track bed slab of ballastless track of bridge, is effectively replenishing traditional double-block type binding steel bars of track bed slab of ballastless track of bridge.

Background technology

The technology predecessor of China's double-blocked rail without ballast is derived from Germany's " radar " type ballastless track technology." radar " type ballastless track was layed in Germany with 1972 and names than breathing out " radar " station on the circuit.In use continue to optimize, develop into present " radar 2000 types " from initial " radar " plain edition.The double-blocked rail without ballast technology of China is to grow up on the basis of radar 2000 types.In the construction of ballastless track plate, bridge reinforcement colligation workload is big, is the critical process of steel bars of track bed slab of ballastless track construction.If adopt traditional reinforcing bar technology for binding, program complexity, length consuming time, efficient are low, required input artificial a lot of and disturb the shortcomings such as construction of other operations.

Summary of the invention

Its purpose of the present invention just is to provide a kind of technology for binding steel bars of track bed slab of ballastless track of bridge, process steps is few, simple to operate, the amount of labour used is few, mechanization degree is low, consuming time less, with other process disturbance few, form advantages such as continuous productive process and qualification rate raising easily, improved operating efficiency like this, reduced engineering cost, shortened the duration of a project.

The technical scheme that realizes above-mentioned purpose and take comprises between middle the boss that is included in each cell block and outside boss and places a reinforcing bar that is about 2.7 meters Φ 20, as propping up a pad effect, is convenient to the colligation of edge insulator; Do two little lumps of wood bars of long 2cm * 4cm of 3 meters in advance, be used for the edge insulator of straightening colligation in advance; On sleeper truss bars, longitudinal reinforcement, identify the position of transverse reinforcement with the red symbol pen; Elder generation's track lifting section of track is taken out a pad lumps of wood, and then is gone up screw regulator, carries out coarse adjustment; The colligation bottom layer of the reinforcing steel, the middle level reinforcing bar that looses, the assembling section of track, colligation middle level reinforcing bar, colligation top reinforcement; Welding ground terminal after the accurate adjustment, is strained earth terminal edge insulator on every side again.

Compared with prior art the present invention has the following advantages.

Owing to adopted novel technique, thereby process steps is few, simple to operate, the amount of labour used is few, mechanization degree is low, consuming time less, few with other process disturbance, form advantages such as continuous productive process and qualification rate raising easily, improved operating efficiency like this, reduced engineering cost, shortened the duration of a project, brought huge economic benefit to society.Adopt new technology and improved about 40% than former traditional handicraft speed.100 meters steel bars of track bed slab of ballastless track of bridge of every colligation required 85 work days before the straightway, carry out new technology after, needed use 55 work days; 100 meters bridge ballastless tracks of every colligation slab required 110 work days before the freeboard section, carry out new technology after, needed use 65 work days.

Description of drawings

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is reinforcing bar binding technological process figure of the present invention;

Fig. 2 is top layer 1 reinforcement placement figure;

Fig. 3 is top layer 2 reinforcement placement figure;

Fig. 4 is intermediate layer 1 reinforcement placement figure;

Fig. 5 is intermediate layer 2 reinforcement placement figure;

Fig. 6 is bottom 1 reinforcement placement figure;

Fig. 7 is bottom 2 reinforcement placement figure.

The specific embodiment

Embodiment as shown in Figure 1, comprising:

1), between the middle boss of each cell block and outside boss, place a reinforcing bar that is about 2.7 meters Φ 20, as a pad effect, be convenient to the colligation of edge insulator;

2) do two little lumps of wood bars of long 2cm * 4cm of 3 meters, in advance, be used for the edge insulator of straightening colligation in advance;

3), on sleeper truss bars, longitudinal reinforcement, identify the position of transverse reinforcement with the red symbol pen;

4), the first track lifting section of track, take out a pad lumps of wood, and then go up screw regulator, carry out coarse adjustment;

5), the colligation bottom layer of the reinforcing steel, the middle level reinforcing bar that looses, the assembling section of track, colligation middle level reinforcing bar, colligation top reinforcement;

6), welding ground terminal, after the accurate adjustment, strain the edge insulator around the earth terminal again.

The specific embodiment

1, reinforcing bar processing checks that geotextiles paves, the wrapping of boss elastic support, prepares assembling reinforcement.The quantity that the reinforcing bar of machine-shaping is needed by design is positioned over bed board cell block next door, colligation road.

2, between the middle boss of each cell block and outside boss, place a reinforcing bar that is about 2.7 meters Φ 20,, be convenient to the colligation of edge insulator as a pad effect.

3, longitudinal reinforcement N1 is being propped up on the pad reinforcing bar according to bullet template sideline, designing requirement bulk storage, and be placed on the boss both sides, each 5 on every limit, good longitudinal reinforcement N5, N6, N7 bulk storage according to designing requirement, wherein N5 is placed directly on the geotextiles.To think about reinforced mesh topping all around during the bulk storage bottom layer of the reinforcing steel.

4, accurately place outermost N1 longitudinal reinforcement, the spacing by transverse reinforcement on the N1 reinforcing bar identifies in advance with the red symbol pen.Do two little lumps of wood bars of long 2cm * 4cm of 3 meters in advance, be used for the edge insulator of straightening colligation in advance.On longitudinal reinforcement N1, the corresponding position of transverse reinforcement N8 adds 20-20 type (cross) edge insulator.On longitudinal reinforcement N1, transverse reinforcement N10, N11, the corresponding position of N12 add 12-20 type (cross) edge insulator.On longitudinal reinforcement N5, N6, N7, the corresponding position of transverse reinforcement N8 adds 12-20 type (cross) edge insulator.On longitudinal reinforcement N7, transverse reinforcement N10, N11, the corresponding position of N12 add 12-12 type (cross) edge insulator.Add the position of the relevant spacing of the transverse reinforcement that edge insulator must identify in advance at longitudinal reinforcement N1, simultaneously must with little lumps of wood bar transfer straight, strain with pliers.

5, colligation transverse reinforcement N8, N10, N11, N12 on the position of the reservation edge insulator of longitudinal reinforcement; and edge insulator strained; the crotch that makes bottom layer of the reinforcing steel up; as far as possible perpendicular to ground; and can not contact each other, make rebar spacing, insulating properties and protective layer thickness be in design point simultaneously.Take out a pad reinforcing bar, put into concrete pad.

6, it is online intermediate layer transverse reinforcement N9, longitudinal reinforcement N2, N3 to be positioned over the bottom layer of the reinforcing steel of boss both sides, puts the N9 reinforcing bar earlier and then puts N2, N3 reinforcing bar.The N2 reinforcing bar whenever is sidelong at boss and is put 3, and each is placed 1 outside at the both sides screw position.Then the N15 longitudinal reinforcement is placed on the outside of superelevation side screw position if any superelevation.

7, place the lumps of wood of 15cm * 15cm in the line direction left and right sides, reinforced mesh upper edge, make the lumps of wood be positioned at the outside of screw position.According on geotextiles the sleeper line of the bullet pillow that looses, manually adjust sleeper, make it to be in rational state, last instrument rail, the pallet of loading screw adjuster, last screw rod does not land screw rod and does not stress.The section of track raises track, and raises track highly to be the best for just taking out the lumps of wood, but goes up the adjustment of instrument rail in conjunction with the design altitude of the section of track that raises track simultaneously.Take out the lumps of wood of both sides, carry out coarse adjustment simultaneously.

8, on the upper and lower layer of the sleeper truss at two ends, bed board unit, road reinforcing bar, identify the position of middle level and upper strata longitudinal reinforcement with the red symbol pen.On the sleeper truss bars,, add edge insulator with little lumps of wood bar, and keep straight according to the longitudinal reinforcement position that is identified.On the sleeper truss bars, the position of middle level longitudinal reinforcement N2 adds 12-10 (cross) edge insulator, and the position of middle level longitudinal reinforcement N3 adds 20-10 (cross) edge insulator, adds 20-12 (cross) edge insulator on the position of upper strata longitudinal reinforcement N1.Being placed on middle level longitudinal reinforcement colligation on the bottom layer of the reinforcing steel net sheet in advance on the design attitude of sleeper truss bottom layer of the reinforcing steel, middle level transverse reinforcement N9 colligation again below the middle level longitudinal reinforcement N2, and the tension edge insulator.If any the good longitudinal reinforcement N15 of superelevation colligation.

9, upper strata transverse reinforcement N8 is positioned on the middle level reinforcing bar between two sleepers by designing requirement, then upper strata longitudinal reinforcement N1 is placed on the sleeper truss bars, but the outermost upper strata longitudinal reinforcement N1 of left and right sides is not put earlier.Colligation longitudinal reinforcement N1, and tension edge insulator.On longitudinal reinforcement N1, the position of transverse reinforcement N8 adds 20-20 (cross) edge insulator, and straight with little lumps of wood bar accent, colligation transverse reinforcement N8.On transverse reinforcement N8, add 20-20 (cross) edge insulator, put outer field two longitudinal reinforcement N1, and colligation is good, reserving three edge insulators in the position of earth terminal does not strain earlier, Deng accurate adjustment intact after, adjust earth terminal and make it to be close to template, then three edge insulators reserving of tension.The crotch of top reinforcement all down and as far as possible perpendicular to topping, the crotch of top reinforcement and lower floor's reinforcing bar is forbidden to hang together.On cross section, bed board two ends, road, insert the N4 reinforcing bar, make the N4 of lower floor reinforcing bar binding under the transverse reinforcement N8 of upper strata, make on the N4 reinforcing bar binding sleeper truss top reinforcement of upper strata, the camber of manual adjustment N4 reinforcing bar, the good and tension of colligation.

10, adjust assembling reinforcement, make the enough toppings of reinforcing bar, do not contact, do not overlap each other with screw rod.Welding integrated ground reinforcing bar, earth terminal are changed the edge insulator that has blown.Carry out resistance test, check the reinforcing bar insulating properties.Earth terminal is suitably adjusted in accurate adjustment, makes it to be close to template, and with the position of red paint mark earth terminal.

Binding steel bars of track bed slab of ballastless track of bridge new technological flow: reinforcing bar processing, prepare assembling reinforcement (checking paving and the wrapping of boss of geotextiles), diffusing bottom layer of the reinforcing steel, the colligation bottom layer of the reinforcing steel is taken out a pad reinforcing bar, is filled in concrete pad, place the intermediate layer reinforcing bar, place the lumps of wood, the sleeper that looses, last instrument rail, the loading screw adjuster, the section of track raises track, takes out the lumps of wood, track panel coarse adjustment, colligation intermediate layer reinforcing bar, place top reinforcement, the colligation top reinforcement, reinforcing bar is checked in the welding of integrated ground reinforcing bar, resistance test, reinforcing bar binding finishes.

Compared with prior art the present invention has the following advantages.

Owing to adopted novel technique, thereby process steps is few, simple to operate, the amount of labour used is few, mechanization degree is low, consuming time less, few with other process disturbance, form the advantages such as continuous productive process and qualification rate raising easily, improve like this operating efficiency, reduced engineering cost, shortened the duration of a project, brought huge economic benefit to society. Adopted new technology than former traditional handicraft Speed improving about 40%. 100 meters steel bars of track bed slab of ballastless track of bridge of every colligation required 85 work days before the straightway, carry out new technology after, needed use 55 work days; 100 meters bridge ballastless tracks of every colligation slab required 110 work days before the freeboard section, carry out new technology after, needed use 65 work days.

Claims (1)

1. a technology for binding steel bars of track bed slab of ballastless track of bridge is characterized in that, comprises

1), between the middle boss of each cell block and outside boss, place a reinforcing bar that is about 2.7 meters Φ 20, as a pad effect, be convenient to the colligation of edge insulator;

2) do two little lumps of wood bars of long 2cm * 4cm of 3 meters, in advance, be used for the edge insulator of straightening colligation in advance;

3), on sleeper truss bars, longitudinal reinforcement, identify the position of transverse reinforcement with the red symbol pen;

4), the first track lifting section of track, take out a pad lumps of wood, and then go up screw regulator, carry out coarse adjustment;

5), the colligation bottom layer of the reinforcing steel, the middle level reinforcing bar that looses, the assembling section of track, colligation middle level reinforcing bar, colligation top reinforcement;

6), welding ground terminal, after the accurate adjustment, strain the edge insulator around the earth terminal again.

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