CN104775340A - Intra-tunnel elastic support block type ballastless track dual-line construction process - Google Patents
Intra-tunnel elastic support block type ballastless track dual-line construction process Download PDFInfo
- Publication number
- CN104775340A CN104775340A CN201510130082.6A CN201510130082A CN104775340A CN 104775340 A CN104775340 A CN 104775340A CN 201510130082 A CN201510130082 A CN 201510130082A CN 104775340 A CN104775340 A CN 104775340A
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- Prior art keywords
- track
- concrete
- section
- construction
- adjustment
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- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/005—Making of concrete parts of the track in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/02—Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/09—Ballastless systems
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/10—Making longitudinal or transverse sleepers or slabs in situ or embedding them
Abstract
The invention provides an intra-tunnel elastic support block type ballastless track dual-line construction process which comprises the process flow as follows: preparation of construction; installation of ballast bed bottom plate steel bars; track panel assembling; track panel paving; installation of upper-layer steel bars; coarse adjustment; steel bar insulation test; template installation; fine adjustment; concrete pouring; concrete-face closure; track panel rack disassembly and accessory clearing; ballast bed concrete curing. Polyethylene foam sheets or foam plastic sheets are adopted for settlement joints, and the surface is sealed by use of bituminous cement. The ballast bed concrete curing period is not less than 14 days. According to the intra-tunnel elastic support block type ballastless track dual-line construction process, the purposes of optimizing resource allocation and quickening the construction progress are achieved; the ballastless track construction quality and progress are ensured, and procedural and normalized operation and management are convenient.
Description
Technical field
The present invention relates to a kind of construction technology of non-fragment orbit, be specifically related to the two-wire construction technology of resiliency supported block type ballastless track in tunnel.
Background technology
Along with developing rapidly of construction of railways technology, non-fragment orbit by increasing for track engineering, but in double-coil output, Construction of Ballastless Track is subject to the actual conditions impact of the restriction of scope of operation narrow space, total logistics cost difficulty, each work plane can only progressively be pushed ahead, construction arranges unreasonable, has influence on construction speed greatly.
Summary of the invention
The invention provides resiliency supported block type ballastless track two-wire construction technology in a kind of tunnel, reach the object of optimizing allocation of resources with accelerating construction progress.
Technical scheme of the present invention is:
Resiliency supported block type ballastless track two-wire construction technology in tunnel, its technological process is as follows:
The first step, preparation of construction, mainly comprises: the pre-job training of construction equipment preparation, measurement preparation, cast concrete base examination, tunnel subsidence assessment, raw material preparation, design of concrete, constructor and other technical preparation;
Second step, installs railway roadbed baseplate reinforcing bar, the pre-buried L-type reinforcing bar and lay concrete protective layer pad, then assembling reinforcement of first constructing;
3rd step, the section of track is assembled, first cloth pillow is carried out, utilize loose pillow device or manually lay sleeper, bolster being uniformly scattered onto in the bolster groove on section of track assembly platform, manually carrying out horizontal intense adjustment, next carries out fastener installation, finally carry out section of track inspection, carry out inspection and the local directed complete set of sleeper pitch, guarantee that sleeper pitch and supporting bed baste position meet designing requirement;
4th step, the section of track is laid, and adopts straddle truck to move the section of track at a slow speed, and coordinates artificial adjustment in place, and center line and elevation coarse localization, control errors is at elevation-10 ~ 0mm, center line ± 10mm.Use clamping plate to connect between the adjacent section of track, every jiont treatment 4 overlaps bolt, tentatively tightens, and rail gap stays tight 6 ~ 10mm;
5th step, installs top reinforcement, first lays transverse reinforcement, longitudinal reinforcement is laid again after installing insulating card, stirrup and bearing rod are installed, edge insulator are set at vertical transverse reinforcement infall and longitudinal reinforcement lap-joint and use plastic tape colligation firm, after colligation, cutting off unnecessary plastic tape;
6th step, coarse adjustment, carries out the adjustment of section of track elevation and the adjustment of section of track center line, by construction line with hang plumb bob and repeatedly adjust until framed bent center line and line midline error, within elevation-5 ~-2mm, center line ± 5mm;
7th step, reinforcing steel bar insulating is tested, and road bed board, being longitudinally not more than 100m is divided into a ground unit, is first often located the overlap joint contact situation of reinforcing bar, then measured the insulation data between reinforcing bar further with hand megger by visual inspection;
8th step, model sheetinstallat, first carry out templates for expansion joints installation, first should check the cleaning of template planeness, template situation, release agent brushing situation before installation, then carry out vertical framework installation, described vertical framework adopts small combined template, manually install, finally carry out expansion joint setting, in the particular range of hole, equidistantly settlement joint is set, all the other location continuous placings, at tunnel subsidence seam, place arranges shrinkage joint;
9th step, accurate adjustment, carry out according to the measurement of ballastless track fine adjustment dolly and operation instruction, manual adjustment bolt adjuster realizes the accurate location of track;
Tenth step, concreting, before concreting, side form adopts release agent brushing even, soak inverted arch and bolster surface sprinkling with giant, and use Special protecting hood to protect rail and sleeper not by Concrete contamination, concreting is undertaken by unidirectional continuously extruded rail mode of crossing, for concrete compaction under guarantee sleeper, before concrete initial set, take secondary vibration to strengthen closely knit measure;
11 step, concrete-face closure, operation sequence is: slightly flat → steel trowel pressure head time → the second time press polish → three time press polish of self-control darby stand material → wood float;
12 step, the dismounting of track framed bent and accessory cleaning, first order is revolved and is risen stud supporting leg, then rail clip is unclamped, according to dismounting orderly release framed bent, dismounting template, eventually pass after confirming that fastener all unclamps, straddle truck is sling, and to be transported to section of track assembling district's cleaning stand-by for framed bent;
13 step, railway roadbed concrete curing, after the final set of railway roadbed concrete, adopts sprayer to carry out fog curing, and covers geotextiles, plastic sheeting and cotton-wadded quilt in time and carry out suitably insulation watering maintenance.
Described settlement joint adopts polyethylene sheet material or plastic foamboard, adopts asphalt cement sealing on surface.
Described railway roadbed concrete curing time, is no less than 14 days.
The beneficial effect that the present invention realizes is:
Resiliency supported block type ballastless track two-wire construction technology in tunnel, reach the object of optimizing allocation of resources with accelerating construction progress, construction quality and the progress of non-fragment orbit all obtain guarantee, are convenient to sequencing, standardized operation and management.
Detailed description of the invention
Resiliency supported block type ballastless track two-wire construction technology in tunnel, its technological process is as follows:
The first step, preparation of construction, mainly comprises: the pre-job training of construction equipment preparation, measurement preparation, cast concrete base examination, tunnel subsidence assessment, raw material preparation, design of concrete, constructor and other technical preparation;
Second step, installs railway roadbed baseplate reinforcing bar, the pre-buried L-type reinforcing bar and lay concrete protective layer pad, then assembling reinforcement of first constructing;
3rd step, the section of track is assembled, first cloth pillow is carried out, utilize loose pillow device or manually lay sleeper, bolster being uniformly scattered onto in the bolster groove on section of track assembly platform, manually carrying out horizontal intense adjustment, next carries out fastener installation, finally carry out section of track inspection, carry out inspection and the local directed complete set of sleeper pitch, guarantee that sleeper pitch and supporting bed baste position meet designing requirement;
4th step, the section of track is laid, and adopts straddle truck to move the section of track at a slow speed, and coordinates artificial adjustment in place, and center line and elevation coarse localization, control errors is at elevation-10 ~ 0mm, center line ± 10mm.Use clamping plate to connect between the adjacent section of track, every jiont treatment 4 overlaps bolt, tentatively tightens, and rail gap stays tight 6 ~ 10mm;
5th step, installs top reinforcement, first lays transverse reinforcement, longitudinal reinforcement is laid again after installing insulating card, stirrup and bearing rod are installed, edge insulator are set at vertical transverse reinforcement infall and longitudinal reinforcement lap-joint and use plastic tape colligation firm, after colligation, cutting off unnecessary plastic tape;
6th step, coarse adjustment, carries out the adjustment of section of track elevation and the adjustment of section of track center line, by construction line with hang plumb bob and repeatedly adjust until framed bent center line and line midline error, within elevation-5 ~-2mm, center line ± 5mm;
7th step, reinforcing steel bar insulating is tested, and road bed board, being longitudinally not more than 100m is divided into a ground unit, is first often located the overlap joint contact situation of reinforcing bar, then measured the insulation data between reinforcing bar further with hand megger by visual inspection;
8th step, model sheetinstallat, first carry out templates for expansion joints installation, first should check the cleaning of template planeness, template situation, release agent brushing situation before installation, then carry out vertical framework installation, described vertical framework adopts small combined template, manually install, finally carry out expansion joint setting, in the particular range of hole, equidistantly settlement joint is set, all the other location continuous placings, at tunnel subsidence seam, place arranges shrinkage joint;
9th step, accurate adjustment, carry out according to the measurement of ballastless track fine adjustment dolly and operation instruction, manual adjustment bolt adjuster realizes the accurate location of track;
Tenth step, concreting, before concreting, side form adopts release agent brushing even, soak inverted arch and bolster surface sprinkling with giant, and use Special protecting hood to protect rail and sleeper not by Concrete contamination, concreting is undertaken by unidirectional continuously extruded rail mode of crossing, for concrete compaction under guarantee sleeper, before concrete initial set, take secondary vibration to strengthen closely knit measure;
11 step, concrete-face closure, operation sequence is: slightly flat → steel trowel pressure head time → the second time press polish → three time press polish of self-control darby stand material → wood float;
12 step, the dismounting of track framed bent and accessory cleaning, first order is revolved and is risen stud supporting leg, then rail clip is unclamped, according to dismounting orderly release framed bent, dismounting template, eventually pass after confirming that fastener all unclamps, straddle truck is sling, and to be transported to section of track assembling district's cleaning stand-by for framed bent;
13 step, railway roadbed concrete curing, after the final set of railway roadbed concrete, adopts sprayer to carry out fog curing, and covers geotextiles, plastic sheeting and cotton-wadded quilt in time and carry out suitably insulation watering maintenance.
Described settlement joint adopts polyethylene sheet material or plastic foamboard, adopts asphalt cement sealing on surface.Described railway roadbed concrete curing time, is no less than 14 days.
Claims (3)
1. resiliency supported block type ballastless track two-wire construction technology in tunnel, it is characterized in that adopting section of track framework method to construct, sum up the material-flow method of little flowing water section two-wire propelling construction, left and right line solid concrete roabed framing is construction alternately, can effectively ensure construction speed and quality.
Technological process is as follows:
The first step, preparation of construction, mainly comprises: the pre-job training of construction equipment preparation, measurement preparation, cast concrete base examination, tunnel subsidence assessment, raw material preparation, design of concrete, constructor and other technical preparation;
Second step, installs railway roadbed baseplate reinforcing bar, the pre-buried L-type reinforcing bar and lay concrete protective layer pad, then assembling reinforcement of first constructing;
3rd step, the section of track is assembled, first cloth pillow is carried out, utilize loose pillow device or manually lay sleeper, bolster being uniformly scattered onto in the bolster groove on section of track assembly platform, manually carrying out horizontal intense adjustment, next carries out fastener installation, finally carry out section of track inspection, carry out inspection and the local directed complete set of sleeper pitch, guarantee that sleeper pitch and supporting bed baste position meet designing requirement;
4th step, the section of track is laid, straddle truck is adopted to move the section of track at a slow speed, and coordinate artificial adjustment in place, and center line and elevation coarse localization, control errors is at elevation-10 ~ 0mm, center line ± 10mm, clamping plate are used to connect between the adjacent section of track, every jiont treatment 4 overlaps bolt, tentatively tightens, and rail gap stays tight 6 ~ 10mm;
5th step, installs top reinforcement, first lays transverse reinforcement, longitudinal reinforcement is laid again after installing insulating card, stirrup and bearing rod are installed, edge insulator are set at vertical transverse reinforcement infall and longitudinal reinforcement lap-joint and use plastic tape colligation firm, after colligation, cutting off unnecessary plastic tape;
6th step, coarse adjustment, carries out the adjustment of section of track elevation and the adjustment of section of track center line, by construction line with hang plumb bob and repeatedly adjust until framed bent center line and line midline error, within elevation-5 ~-2mm, center line ± 5mm;
7th step, reinforcing steel bar insulating is tested, and road bed board, being longitudinally not more than 100m is divided into a ground unit, is first often located the overlap joint contact situation of reinforcing bar, then measured the insulation data between reinforcing bar further with hand megger by visual inspection;
8th step, model sheetinstallat, first carry out templates for expansion joints installation, first should check the cleaning of template planeness, template situation, release agent brushing situation before installation, then carry out vertical framework installation, described vertical framework adopts small combined template, manually install, finally carry out expansion joint setting, in the particular range of hole, equidistantly settlement joint is set, all the other location continuous placings, at tunnel subsidence seam, place arranges shrinkage joint;
9th step, accurate adjustment, carry out according to the measurement of ballastless track fine adjustment dolly and operation instruction, manual adjustment bolt adjuster realizes the accurate location of track;
Tenth step, concreting, before concreting, side form adopts release agent brushing even, soak inverted arch and bolster surface sprinkling with giant, and use Special protecting hood to protect rail and sleeper not by Concrete contamination, concreting is undertaken by unidirectional continuously extruded rail mode of crossing, for concrete compaction under guarantee sleeper, before concrete initial set, take secondary vibration to strengthen closely knit measure;
11 step, concrete-face closure, operation sequence is: slightly flat → steel trowel pressure head time → the second time press polish → three time press polish of self-control darby stand material → wood float;
12 step, the dismounting of track framed bent and accessory cleaning, first order is revolved and is risen stud supporting leg, then rail clip is unclamped, according to dismounting orderly release framed bent, dismounting template, eventually pass after confirming that fastener all unclamps, straddle truck is sling, and to be transported to section of track assembling district's cleaning stand-by for framed bent;
13 step, railway roadbed concrete curing, after the final set of railway roadbed concrete, adopts sprayer to carry out fog curing, and covers geotextiles, plastic sheeting and cotton-wadded quilt in time and carry out suitably insulation watering maintenance.
2. resiliency supported block type ballastless track two-wire construction technology in tunnel according to claim 1, is characterized in that, described settlement joint adopts polyethylene sheet material or plastic foamboard, adopts asphalt cement sealing on surface.
3. resiliency supported block type ballastless track two-wire construction technology in tunnel according to claim 1, it is characterized in that, described railway roadbed concrete curing time, is no less than 14 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510130082.6A CN104775340B (en) | 2015-03-24 | 2015-03-24 | Block type ballastless track two-wire construction technology is flexibly supported in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510130082.6A CN104775340B (en) | 2015-03-24 | 2015-03-24 | Block type ballastless track two-wire construction technology is flexibly supported in tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104775340A true CN104775340A (en) | 2015-07-15 |
| CN104775340B CN104775340B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510130082.6A Expired - Fee Related CN104775340B (en) | 2015-03-24 | 2015-03-24 | Block type ballastless track two-wire construction technology is flexibly supported in tunnel |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421170A (en) * | 2015-12-09 | 2016-03-23 | 中铁建大桥工程局集团第五工程有限公司 | Ballastless track construction method based on high-integration track panel frame |
| CN109595001A (en) * | 2018-11-27 | 2019-04-09 | 中铁十局集团第五工程有限公司 | Inverted arch binary channels logistics construction method |
| CN111794018A (en) * | 2020-07-15 | 2020-10-20 | 中铁九局集团第六工程有限公司 | Construction method of ballastless track with replaceable supporting blocks by tunnel sleeve shoe method |
| CN112900161A (en) * | 2021-01-27 | 2021-06-04 | 中铁十二局集团有限公司 | Construction method of integral track bed of boot-type elastic supporting block of tunnel |
| CN113026435A (en) * | 2021-03-12 | 2021-06-25 | 中铁二十三局集团轨道交通工程有限公司 | Subway shield interval plate type ballastless track construction method |
| CN113338093A (en) * | 2021-08-06 | 2021-09-03 | 中国土木工程集团有限公司 | Method for rebuilding and expanding existing railway and newly-built railway of port area freight yard in conflict |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07309231A (en) * | 1994-05-10 | 1995-11-28 | Franz Plasser Bahnbaumas Ind Gmbh | Track skeleton transportation device |
| CN101812819A (en) * | 2010-04-28 | 2010-08-25 | 中铁二十局集团有限公司 | Whole construction process for double block type ballastless track |
| CN202000226U (en) * | 2011-04-14 | 2011-10-05 | 中铁十二局集团有限公司 | Pouring device for concrete slabs on railway double-slab ballastless track bed |
| CN104264546A (en) * | 2014-09-11 | 2015-01-07 | 中铁六局集团呼和浩特铁路建设有限公司 | Fine adjustment method of double-block type ballastless track construction track panel |
| CN104313957A (en) * | 2014-09-26 | 2015-01-28 | 中铁三局集团有限公司 | Novel double-block type track panel coarse adjustment method |
-
2015
- 2015-03-24 CN CN201510130082.6A patent/CN104775340B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07309231A (en) * | 1994-05-10 | 1995-11-28 | Franz Plasser Bahnbaumas Ind Gmbh | Track skeleton transportation device |
| CN101812819A (en) * | 2010-04-28 | 2010-08-25 | 中铁二十局集团有限公司 | Whole construction process for double block type ballastless track |
| CN202000226U (en) * | 2011-04-14 | 2011-10-05 | 中铁十二局集团有限公司 | Pouring device for concrete slabs on railway double-slab ballastless track bed |
| CN104264546A (en) * | 2014-09-11 | 2015-01-07 | 中铁六局集团呼和浩特铁路建设有限公司 | Fine adjustment method of double-block type ballastless track construction track panel |
| CN104313957A (en) * | 2014-09-26 | 2015-01-28 | 中铁三局集团有限公司 | Novel double-block type track panel coarse adjustment method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421170A (en) * | 2015-12-09 | 2016-03-23 | 中铁建大桥工程局集团第五工程有限公司 | Ballastless track construction method based on high-integration track panel frame |
| CN109595001A (en) * | 2018-11-27 | 2019-04-09 | 中铁十局集团第五工程有限公司 | Inverted arch binary channels logistics construction method |
| CN111794018A (en) * | 2020-07-15 | 2020-10-20 | 中铁九局集团第六工程有限公司 | Construction method of ballastless track with replaceable supporting blocks by tunnel sleeve shoe method |
| CN112900161A (en) * | 2021-01-27 | 2021-06-04 | 中铁十二局集团有限公司 | Construction method of integral track bed of boot-type elastic supporting block of tunnel |
| CN113026435A (en) * | 2021-03-12 | 2021-06-25 | 中铁二十三局集团轨道交通工程有限公司 | Subway shield interval plate type ballastless track construction method |
| CN113026435B (en) * | 2021-03-12 | 2023-02-24 | 中铁二十三局集团轨道交通工程有限公司 | Subway shield interval plate type ballastless track construction method |
| CN113338093A (en) * | 2021-08-06 | 2021-09-03 | 中国土木工程集团有限公司 | Method for rebuilding and expanding existing railway and newly-built railway of port area freight yard in conflict |
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| Publication number | Publication date |
|---|---|
| CN104775340B (en) | 2016-09-14 |
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Granted publication date: 20160914 |