CN106351093A - Construction method for integrally laying 1/42 turnouts in inserting mode in existing railroad section - Google Patents
Construction method for integrally laying 1/42 turnouts in inserting mode in existing railroad section Download PDFInfo
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Abstract
The invention relates to the field of railway turnout laying construction, in particular to a construction method for integrally laying 1/42 turnouts in an inserting mode in an existing railroad section. The method comprises the following steps of 1 various preparation works before turnout pre-assembling; 2 construction of turnout pre-assembling, wherein rail material scattering, square sleeper line drawing, accessory scattering, assembling and turnout welding are conducted; 3 preparation work of overall transverse turnout moving, wherein the turnouts are assembled and welded on a pre-assembling table, industrial electric joint debugging is completed, overall turnout reinforcing is conducted, a track jack is installed, and slide rails and slide wheels are installed; 4 construction in a blocking point, wherein construction protecting, railroad dismantling, track lifting before slide rail installing, site clearing, point eliminating, railroad opening and the like are conducted. According to the method, not only can mutual interference between large-size turnout drawing and connecting construction and existing railway transportation be reduced, but also timely completion of related projects is accelerated; in addition, compared with other construction schemes such as line stopping for laying and temporary line bypassing, more construction cost is reduced.
Description
Technical field
The present invention relates to railway switch laying construction field is and in particular to a kind of interval entirety of existing line inserts the construction method of paving 1/42 track switch.
Background technology
With the fast development of China's economy, the existing railway that early stage is built can not meet movement requirement, and therefore substantial amounts of building up station needs to expand transformation, and especially single line is changed in the station yard modification of multiple line, must insert track switch.
Foreign Existing road operation train density is relatively small, and the grid-connected situation of railway construction is few, and track switch is many to be carried out by the way of original position is laid, and no big number high-speed switch inserts the relevant report of paving.Domestic only 1/12 and 1/18 track switch at present carried out both wired slotting pavings, because its structure is simple, length component is short, lightweight, pulls and connects construction, be easier to ensure construction quality and safety in block in 180 minutes point.2012 Nian9Yue China high ferros have successfully laid 1 group of 1/41 high-speed railway switch by the way of sealing joint, but this high ferro rate of traffic flow little and AT STATION interior laying a switch, construction site open, to driving and security implication little.Additionally, the other high ferro circuit of China has carried out the original position laying construction of 1/42 track switch, due to being to be constructed in newly-built circuit, no any construction is disturbed.
1/42 track switch is due to the construction featuress (laterally through speed 160km/h) of its own, it is well positioned to meet the lateral high speed of track switch to pass through, adapt to the high speed construction requirements of Chinese Railway, the networking operation realizing high-speed railway by way of pulling and connecting and insert the big number high-speed switch of paving in existing railway main line with existing railway also will become the new normality of high speed railway construction.Due to track switch deadweight and length big (weight 246t, long 157.2m), be both easily deformed and collapsed during overall horizontal sliding in wired block point row, traversing be difficult synchronization, traversing put in place after adjust a track switch center line in block point, the absolute altitude difficulty that puts in place big.For this, must design a kind of can reduce large size track switch pull and connect construction with existing railway transport interfere, accelerate on schedule the building up of correlation engineering, and with stop line laying, just line more existing busy railway sections reducing construction costs compared with other arrangement and method for construction such as detour integrally insert paving 1/42 high speed and have tiny fragments of stone, coal, etc. railroad switch construction method.
Content of the invention
The problem existing for prior art, there is provided a kind of can reduce large size track switch pull and connect construction with existing railway transport interfere, accelerate on schedule the building up of correlation engineering, and with stop line laying, just line more interval overall construction methods inserting paving 1/42 track switches of existing line reducing construction costs compared with other arrangement and method for construction such as detour.
The technical solution used in the present invention is:
A kind of interval overall construction method inserting paving 1/42 track switch of existing line, comprises the steps:
The first step, the pre-splicing front every preparation of track switch: after road excavation, first flattened, again existing gutter and the new roadbed that excavates are carried out by back-filling in layers compacting with filler, after being backfilled to roadbed design absolute altitude, to track switch, pre-splicing position carries out placement in layers compacting again, sleeper is put afterwards on filler, the upper edge line direction of sleeper arranges elongated rail bar, and with railway spike, rail bar is fixed on sleeper, and by circuit design grade leveling carried out to elongated rail bar, form pre-splicing position of track switch, to carry out track switch above platform position pre-splicing；
Second step, the pre-splicing construction procedure of track switch: (1) dissipate rail material: according to measurement and positioning, switch tie is put by the spacing of sizing G- Design, dissipate track switch accessory by laying figure；(2) setting-out side's pillow: the tie distance pressing track switch G- Design on track switch straight stock rail draws the sleeper position line, is started in place by root side's pillow by the sleeper position line from switch blade；(3) dissipate accessory: the slider bed backing plate at switch blade is coupled together with rail, the special backing plate at position outside switch blade is coupled together with rail；(4) assembled: assembled to after trouble before trouble, first spell straight stock, spell bent stock afterwards；(5) track switch welding: aluminum weld, polishing are carried out to track switch internal connection position；
3rd step, the preparation of track switch whole lateral moving: (1) track switch completes assembly and welding on pre-splicing position, and complete work Electricity Federation tune, carry out track switch integral reinforcing；(2) track jack is installed: integrally can slowly fall in place for after ensureing that track switch is traversing and putting in place, be controlled using switch changing and laying unit；(3) slide rail, pulley are installed: raise track switch using track jack, slide rail and pulley are installed, pulley should be blocked immediately after installation, prevent track switch slippery；
4th step, construction procedure in block point: (1) construction protection: after block order is assigned, to job site transmission block order, live protection personnel is in the set live protective position of position setting for liaison man in station；(2) line disconnection: saw rail personnel carry out sawing rail according to the position that technical staff indicates in advance, the existing rail in section and sleeper are carried out removing afterwards, bottom picked up by railway ballast；(3) raise track before slide rail is installed: slowly raise track switch, track switch raising height so that slide rail can be penetrated, lay pulley and antiskid glue cushion is defined；(4) slide rail is installed: ready slide rail in advance is manually penetrated, installs pulley according to the corresponding sled position having indicated, and antiskid glue cushion is installed above pulley, flat slope to be after slide rail installation, should carry out anti-slip measure using timber wedge or other devices after pulley installation immediately；(5) track switch is traversing: traversing track switch is carried out by the way of artificial push, carrying out unifying shout slogans by the hand-held microphone of commander in chief, to carry out track switch traversing, during track switch is traversing, all workmens must not speak, each group group leader sucks whistle, as fortuitous event, whistle immediately and warn, all constructions stop pushing immediately, and resynchronisation after fortuitous event is disposed pushes；(6) dropping place: lift track jack, raising height is defined by pulley and railroad turnout steel rail gap, is removed slide rail, pulley afterwards, after dismounting finishes, when confirming not having any barrier below turnout sleeper, each track jack manipulator, according to order, operates track jack track lowering simultaneously；⑺Shang Zhazheng road: using before the trouble by design for the track jack, after frog, trouble and wire center densely covered pile is adjusted to the direction of track switch, track lifting of turnout junction enters tiny fragments of stone, coal, etc. tamping operation, finally recycle track jack that track switch direction is finely adjusted；(8) work Electricity Federation is adjusted: according to associated track circuit before and after work business progress connection 1/42 track switch, installation and debugging device for changing points and related layouts, electricity business carries out track circuit, track switch equipment debugging, carries out interlock circuit modification according to Transition Design, and point is finished first 30 minutes and carried out interlock test by electricity business section；(9) clear out a gathering place, the point that disappears, open circuit: after track division carries out an acceptance inspection and be qualified to track switch, can carry out clearing out a gathering place, the point that disappears, open circuit.
As the preferred embodiment of the present invention, described 4th step (5) in, technician makees sliding labelling by parallel to both wired every 50cm before traversing track switch on every place slide rail, and the traversing process of track switch must remain a constant speed, synchronous；Track switch slides to and stops sliding during labelling, reaches after all pulleys and resynchronizes to next 50cm labelling sliding after mark, until track switch slides onto design attitude.
As the preferred embodiment of the present invention, described 3rd step (1) in, the reinforcement means carrying out track switch integral reinforcing is that every 2.5m insulation gauge tie-rod is fixed, and makes track switch vertically and horizontally form entirety, improve track switch integral rigidity, reach indeformable during track switch whole lateral moving.
As the preferred embodiment of the present invention, described 3rd step (2) in, track jack spacing is arranged by 7m, and track jack and track switch binding is connected integral, so that during traversing track switch and track switch synchronizing moving.
As the preferred embodiment of the present invention, after the (4) step of described second step, also bag checks, rectifies and improves, checking and accepting step: carries out track switch physical dimension inspection, rectification to assembled good track switch, track division is invited pre-splicing track switch to be carried out an acceptance inspection it is ensured that track switch possesses insertion condition after self-inspection is qualified.
As the preferred embodiment of the present invention, (1) dissipating in rail material step of described second step, according to center of turnout position, start to put railroad turnout steel rail by root from switch blade, and railroad turnout steel rail is coupled together；With steel ruler along straight stock orientation measurement total length of turnout and center of turnout point, mobile rail makes center of turnout corresponding with track switch laying midpoint and parallel to existing line.
As the preferred embodiment of the present invention, in the described first step, to track switch, pre-splicing position is controlled by 310mm under existing sleeper and carries out placement in layers compacting.
As the preferred embodiment of the present invention, described 4th step (4) in, when slide rail is installed, slide rail should with railroad turnout steel rail right angle in 90 °.
As the preferred embodiment of the present invention, in the described first step, on filler, put sleeper perpendicular to existing line by 5～8m spacing,
As the preferred embodiment of the present invention, the filler in the described first step is ab group filler.
In sum, due to employing technique scheme, the invention has the beneficial effects as follows:
1st, by completing the pre-splicing front every preparation of track switch, to control, especially in accordance with both wired elevations, the elevation setting up pre-splicing platform, being that later stage track switch is traversing provides more labour-saving precondition, and provides guarantee for the pre-splicing overall leveling of track switch.
2nd, track switch pre-splicing be track switch insertion primary work, by the assembled work of track switch in the pre-splicing platform of side position track switch, just can carry out all standard to the track switch after the completion of pre-splicing in advance and check, decrease a workload for block point inspection, and save blocking time.Meanwhile, on pre-splicing platform by trouble in all welding points welded in advance it is ensured that during traversing track switch globality, decrease block point in construction an operation, save the engineering time.
3rd, live all management personnel, workmen all complete the task in respective working range according to above-mentioned construction method, smoothly, satisfactory the both wired interval insertions of 1/42 track switch are completed, one personnel casualty accidents does not occur simultaneously, blocking time, track switch insertion quality are guaranteed.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, the present invention will be further described.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of interval overall construction method inserting paving 1/42 track switch of existing line, comprises the steps:
1st, the pre-splicing front every preparation of track switch:
After road excavation, first substantially flattened, more existing gutter and the new roadbed that excavates are carried out by back-filling in layers compacting with ab group filler, after being backfilled to roadbed design absolute altitude, more pre-splicing position is carried out placement in layers compacting by 310mm control under existing sleeper to track switch.Put sleeper perpendicular to both wired by 5～8m spacing on ab group filler afterwards, the upper edge line direction of sleeper arranges elongated rail bar, and with railway spike, rail bar is fixed on sleeper, and by circuit design grade, leveling is carried out to elongated rail bar, form pre-splicing position of track switch, to carry out track switch above platform position pre-splicing.
2nd, the pre-splicing construction method of track switch:
(1) dissipate rail material
Switch tie is put by the spacing of sizing G- Design by (to trouble tail before trouble) according to measurement and positioning, dissipates track switch accessory by laying figure.
Put railroad turnout steel rail: according to center of turnout position, start to put railroad turnout steel rail by root from switch blade, and railroad turnout steel rail is coupled together；With steel ruler along straight stock orientation measurement total length of turnout and center of turnout point, mobile rail makes center of turnout corresponding with track switch laying midpoint and parallel to both wired.
(2) setting-out side's pillow
Using the long steel ruler of 50m, on track switch straight stock rail, tie distance as shown in track switch figure draws the sleeper position line, forbids using white oil lacquer painting on straight stock steel rail web；Start in place by root side's pillow from switch blade by the switch tie position line.
(3) dissipate accessory
Slider bed backing plate at switch blade is coupled together with rail, special backing plate and the rail at other positions are coupled together.Note iron chair size in upper track switch fastener, must not wantonly abuse or exchange backing plate position.
(4) assembled
Assembled to after trouble before trouble, first spell straight stock, spell bent stock afterwards.
Note, when track switch is carried out with the afterburning locking of fastener, measuring rail temperature in advance it is ensured that carrying out track switch locking in the range of design fastening-down temperature of rail, and synchronization making a record, management stand-by supervision.
(5) check, rectify and improve, check and accept
Track switch physical dimension inspection is carried out to assembled good track switch, rectification.Track division is invited pre-splicing track switch to be carried out an acceptance inspection it is ensured that track switch possesses insertion condition after self-inspection is qualified.
Railway switch must be pulled flexibly, and the point of switch is closely connected with stock rail.
Gauge tolerance: be ± 1mm at the point of switch, heel end, other positions are+3mm, -2mm.
Guard rail check gauge (distance outside frog centre action edge to guard rail head) cannot be less than 1391mm；Guard rail face gage (distance outside wing rail action edge to guard rail head) cannot be greater than 1348mm.
Lead curve is smoother, and offset distance is correct；Offset distance tolerance is ± 2mm.
Track switch dislocation amount end to end: cannot be greater than 15mm.Point of switch dislocation amount cannot be greater than 10mm.Switch tie spacing, deflection cannot be greater than 20mm.
(6) track switch welding
Pre-splicing track switch, after track division acceptance(check), to track switch internal connection position carries out aluminum weld, polishing in time, and carry out relative recording in the range of design fastening-down temperature of rail.
3rd, the preparation of track switch whole lateral moving:
(1) track switch completes assembly and associated welds on pre-splicing position, and completes work Electricity Federation tune, carries out track switch integral reinforcing, reinforcement means is that every 2.5m insulation gauge tie-rod is fixed, make track switch vertically and horizontally form entirety, improve track switch integral rigidity, reach indeformable during track switch whole lateral moving.
Install hydraulic pressure elevation track jack: for ensure track switch is traversing put in place after can integrally slowly fall in place, it is controlled using switch changing and laying unit, track jack spacing is generally arranged by 7m, it is adjusted sky according to on-site actual situations, at point tongue and at frog, adopt special track jack (applying for patent of invention).And hydraulic pressure elevation track jack and track switch binding are connected integral, so that during traversing track switch and track switch synchronizing moving.
(3) slide rail, pulley are installed: raise track switch using hydraulic pressure high level track jack, slide rail and special pulley are installed, pulley should be blocked using timber wedge or other devices immediately after installation, prevent the slippery impact of track switch both wired (track switch after fixing must not be overnight) and send special messenger to be nursed.Survey crew parallel circuit direction on slide rail makes marks along slide rail direction interval 50cm on every one slide rail, ensures that the deviation of directivity after track switch insertion is less with this.
4th, the method constructed in block point:
(1) construction protection: after block order is assigned, liaison man in station arranges the live protective position such as stop board, detonator to job site transmission block order, live protection personnel in set position.
(2) line disconnection: live commander in chief appoints into beginning track switch construction of ordering, saw rail personnel carry out sawing rail according to the position that technical staff indicates in advance.After the completion of, group leader is commanded by order that respective panelists carry out to the existing rail in respective section and sleeper removing, bottom picked up by railway ballast, and railway ballast is excluded to this line direction, and remaining old material is removed to adjacent line direction, is transported out both wired afterwards by adjacent line.
(3) slide rail is installed: live vice president commander, by present commander in chief's order, commands each hydraulic pressure elevation track jack manipulator slowly to raise track switch using Hydraulic Track Lifting And Lining Machine simultaneously, track switch raising height so that slide rail can be penetrated, lay pulley and antiskid glue cushion is defined.When reaching calibrated altitude, all high speed track jacks stop raising track.
(4) slide rail, pulley are installed squad and are manually penetrated, install pulley ready slide rail in advance according to the corresponding sled position having indicated by group leader's instruction, and antiskid glue cushion is installed above pulley, flat slope to be after slide rail installation, anti-slip measure should be carried out using timber wedge or other devices immediately after pulley installation, prevent track switch slippery.Install slide rail when note, slide rail must with railroad turnout steel rail right angle in 90 °, and slide rail be tightly fixed on support slide rail sleeper on.
(5) track switch is traversing: traversing track switch is carried out by the way of artificial push.Carry out unifying shout slogans by the hand-held microphone of commander in chief and carry out that track switch is traversing, during track switch is traversing, all workmens must not speak, and each group group leader sucks whistle, as fortuitous event, whistle immediately and warn, all constructions stop pushing immediately, and resynchronisation after fortuitous event is disposed pushes.Technician makees sliding labelling by parallel to both wired every 50cm before traversing track switch on every place slide rail, and the traversing process of track switch must remain a constant speed, synchronization.Track switch slides to and stops sliding during labelling, reaches after all pulleys and resynchronizes to next 50cm labelling sliding after mark, until track switch slides onto design attitude.Meanwhile this also needs to set special messenger and the steady statue of slide rail and pulley is guarded, and such as finds deflection, stops traversing immediately, sliding again after the completion of waiting to readjust.
(6) dropping place: live vice president commander indicates according to live commander in chief after track switch is in place, each manipulator that orders lifts high speed track jack simultaneously, and raising height is defined by pulley and railroad turnout steel rail gap.Slide rail, pulley are removed by each group leader according to respective pipeline section scope.
After dismounting finishes, each group leader checks to the track switch removing slide rail, when confirming not having any barrier below turnout sleeper, reports live commander in chief, is ordered by commander in chief, track lowering branches off.
High speed track jack manipulator, according to order, operates high speed track jack track lowering simultaneously.After track switch track lowering is in place, position before in-site measurement personnel branch off according to the design of track switch, after frog, trouble, technical staff, according to the embedded disjunction mark in scene, is controlled to track switch direction using l chi, the cooperation adjustment of high speed track jack.Treat that track switch direction is consistent with design, after track switch absolute altitude etc. meets requirement, report live commander in chief.Each group coordinates high speed track jack to carry out the dismounting work of high speed track jack.
⑺Shang Zhazheng road: using before the trouble by design for the hydraulic pressure high level track jack, after frog, trouble and wire center densely covered pile is adjusted to the direction of track switch, track lifting of turnout junction enters the tiny fragments of stone, coal, etc. and the operation such as makes firm by ramming.Finally recycle high-rise track jack that track switch direction is finely adjusted, using track forces, the physical dimension of track switch is checked.
(8) work Electricity Federation is adjusted: according to associated track circuit, installation and debugging device for changing points and related layouts before and after work business progress connection 1/42 track switch.Electricity business carries out track circuit, track switch equipment debugging, carries out interlock circuit modification according to Transition Design, and point is finished first 30 minutes and carried out interlock test by electricity business section.
(9) clear out a gathering place, the point that disappears, open circuit: after track division carries out an acceptance inspection and be qualified to track switch, can carry out clearing out a gathering place, the point that disappears, open circuit.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of interval overall construction method inserting paving 1/42 track switch of existing line is it is characterised in that comprise the steps:
The first step, the pre-splicing front every preparation of track switch: after road excavation, first flattened, again existing gutter and the new roadbed that excavates are carried out by back-filling in layers compacting with filler, after being backfilled to roadbed design absolute altitude, to track switch, pre-splicing position carries out placement in layers compacting again, sleeper is put afterwards on filler, the upper edge line direction of sleeper arranges elongated rail bar, and with railway spike, rail bar is fixed on sleeper, and by circuit design grade leveling carried out to elongated rail bar, form pre-splicing position of track switch, to carry out track switch above platform position pre-splicing；
Second step, the pre-splicing construction procedure of track switch: (1) dissipate rail material: according to measurement and positioning, switch tie is put by the spacing of sizing G- Design, dissipate track switch accessory by laying figure；(2) setting-out side's pillow: the tie distance pressing track switch G- Design on track switch straight stock rail draws the sleeper position line, is started in place by root side's pillow by the sleeper position line from switch blade；(3) dissipate accessory: the slider bed backing plate at switch blade is coupled together with rail, the special backing plate at position outside switch blade is coupled together with rail；(4) assembled: assembled to after trouble before trouble, first spell straight stock, spell bent stock afterwards；(5) track switch welding: aluminum weld, polishing are carried out to track switch internal connection position；
3rd step, the preparation of track switch whole lateral moving: (1) track switch completes assembly and welding on pre-splicing position, and complete work Electricity Federation tune, carry out track switch integral reinforcing；(2) track jack is installed: integrally can slowly fall in place for after ensureing that track switch is traversing and putting in place, be controlled using switch changing and laying unit；(3) slide rail, pulley are installed: raise track switch using track jack, slide rail and pulley are installed, pulley should be blocked immediately after installation, prevent track switch slippery；
4th step, construction procedure in block point: (1) construction protection: after block order is assigned, to job site transmission block order, live protection personnel is in the set live protective position of position setting for liaison man in station；(2) line disconnection: saw rail personnel carry out sawing rail according to the position that technical staff indicates in advance, the existing rail in section and sleeper are carried out removing afterwards, bottom picked up by railway ballast；(3) raise track before slide rail is installed: slowly raise track switch, track switch raising height so that slide rail can be penetrated, lay pulley and antiskid glue cushion is defined；(4) slide rail is installed: ready slide rail in advance is manually penetrated, installs pulley according to the corresponding sled position having indicated, and antiskid glue cushion is installed above pulley, flat slope to be after slide rail installation, should carry out anti-slip measure using timber wedge or other devices after pulley installation immediately；(5) track switch is traversing: traversing track switch is carried out by the way of artificial push, carrying out unifying shout slogans by the hand-held microphone of commander in chief, to carry out track switch traversing, during track switch is traversing, all workmens must not speak, each group group leader sucks whistle, as fortuitous event, whistle immediately and warn, all constructions stop pushing immediately, and resynchronisation after fortuitous event is disposed pushes；(6) dropping place: lift track jack, raising height is defined by pulley and railroad turnout steel rail gap, is removed slide rail, pulley afterwards, after dismounting finishes, when confirming not having any barrier below turnout sleeper, each track jack manipulator, according to order, operates track jack track lowering simultaneously；⑺Shang Zhazheng road: using before the trouble by design for the track jack, after frog, trouble and wire center densely covered pile is adjusted to the direction of track switch, track lifting of turnout junction enters tiny fragments of stone, coal, etc. tamping operation, finally recycle track jack that track switch direction is finely adjusted；(8) work Electricity Federation is adjusted: according to associated track circuit before and after work business progress connection 1/42 track switch, installation and debugging device for changing points and related layouts, electricity business carries out track circuit, track switch equipment debugging, carries out interlock circuit modification according to Transition Design, and point is finished first 30 minutes and carried out interlock test by electricity business section；(9) clear out a gathering place, the point that disappears, open circuit: after track division carries out an acceptance inspection and be qualified to track switch, can carry out clearing out a gathering place, the point that disappears, open circuit.
2. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1, it is characterized in that, described 4th step (5) in, technician makees sliding labelling by parallel to both wired every 50cm before traversing track switch on every place slide rail, and the traversing process of track switch must remain a constant speed, synchronization；Track switch slides to and stops sliding during labelling, reaches after all pulleys and resynchronizes to next 50cm labelling sliding after mark, until track switch slides onto design attitude.
3. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1, it is characterized in that, described 3rd step (1) in, the reinforcement means carrying out track switch integral reinforcing is that every 2.5m insulation gauge tie-rod is fixed, track switch is made vertically and horizontally to form entirety, improve track switch integral rigidity, reach indeformable during track switch whole lateral moving.
4. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1, it is characterized in that, described 3rd step (2) in, track jack spacing is arranged by 7m, and track jack and track switch binding are connected integral, so that during traversing track switch and track switch synchronizing moving.
5. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1, it is characterized in that, after the (4) step of described second step, also bag checks, rectifies and improves, checking and accepting step: carries out track switch physical dimension inspection, rectification to assembled good track switch, track division is invited pre-splicing track switch to be carried out an acceptance inspection it is ensured that track switch possesses insertion condition after self-inspection is qualified.
6. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1, it is characterized in that, in the (1) scattered rail material step of described second step, according to center of turnout position, start to put railroad turnout steel rail by root from switch blade, and railroad turnout steel rail is coupled together；With steel ruler along straight stock orientation measurement total length of turnout and center of turnout point, mobile rail makes center of turnout corresponding with track switch laying midpoint and parallel to existing line.
7. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1 is it is characterised in that in the described first step, to track switch, pre-splicing position is controlled by 310mm under existing sleeper and carries out placement in layers compacting.
8. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1 it is characterised in that described 4th step (4) in, when slide rail is installed, slide rail should with railroad turnout steel rail right angle in 90 °.
9. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1 is it is characterised in that in the described first step, put sleeper perpendicular to existing line by 5～8m spacing on filler.
10. the interval overall construction method inserting paving 1/42 track switch of existing line according to claim 1 is it is characterised in that the filler in the described first step is ab group filler.
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| CN201510408590.6A CN106351093B (en) | 2015-07-13 | 2015-07-13 | Integrally insert the construction method of 1/42 track switch of paving in a kind of existing line section |
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| CN108611929A (en) * | 2018-05-15 | 2018-10-02 | 中铁第四勘察设计院集团有限公司 | A method of both causeway trouble was inserted in wired non-fragment orbit location |
| CN108708233A (en) * | 2018-05-19 | 2018-10-26 | 中铁十局集团青岛工程有限公司 | Track switch integrally draws paving construction method |
| CN112301811A (en) * | 2020-10-27 | 2021-02-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Construction mode based on reserved turnout |
| CN112878120A (en) * | 2019-11-29 | 2021-06-01 | 中国铁建高新装备股份有限公司 | Mechanical replacing and laying construction method for ballast turnout |
| CN113718562A (en) * | 2021-08-30 | 2021-11-30 | 云南省铁路集团有限公司 | Switch pre-laying insertion construction method |
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| CN108611929A (en) * | 2018-05-15 | 2018-10-02 | 中铁第四勘察设计院集团有限公司 | A method of both causeway trouble was inserted in wired non-fragment orbit location |
| CN108708233A (en) * | 2018-05-19 | 2018-10-26 | 中铁十局集团青岛工程有限公司 | Track switch integrally draws paving construction method |
| CN112878120A (en) * | 2019-11-29 | 2021-06-01 | 中国铁建高新装备股份有限公司 | Mechanical replacing and laying construction method for ballast turnout |
| CN112301811A (en) * | 2020-10-27 | 2021-02-02 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Construction mode based on reserved turnout |
| CN112301811B (en) * | 2020-10-27 | 2022-06-21 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Construction mode based on reserved turnout |
| CN113718562A (en) * | 2021-08-30 | 2021-11-30 | 云南省铁路集团有限公司 | Switch pre-laying insertion construction method |
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