CN109518544A - A kind of subway precast track plate railway roadbed laying method - Google Patents
A kind of subway precast track plate railway roadbed laying method Download PDFInfo
- Publication number
- CN109518544A CN109518544A CN201811637431.3A CN201811637431A CN109518544A CN 109518544 A CN109518544 A CN 109518544A CN 201811637431 A CN201811637431 A CN 201811637431A CN 109518544 A CN109518544 A CN 109518544A
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- Prior art keywords
- track
- construction
- subway
- precast
- railway roadbed
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a kind of subway underground cable precast track plate railway roadbed laying construction methods, precast track plate railway roadbed is using substrate " along doing ", track plates " spread " construction two large divisions, specifically: after tracklaying base is built, first clockwise direction (from feed opening " from the near to the distant ") carries out substrate " along paving " construction, and after pouring base concrete and having constructed and reach intensity, temporary project train, which is laid with, in basal surface successively walks row line, working track plates are transported by temporary line again after completing 1~2 section substrate construction, reinforcing bar, the rail materials such as circulation material and self-compacting concrete, it is segmented successively according to track slab pavement construction speed on duty and removes temporary line, mode " from the distant to the near " is taken to carry out track plates " spreading " and self-compacting concrete pouring construction again.The present invention overcomes the influence to entire construction speed by force is waited after self-compacting concrete perfusion, precast track plate laying construction is worked continuously.
Description
Technical field
The present invention relates to a kind of underground cable subway precast track plate ballast construction methods.
Background technique
No. 9 line designs of subway in Shanghai use novel precast track plate ballast bed structure, use for reference and absorption high-speed rail maturation is prefabricated
Track plates railway roadbed form.The design of its ballast bed structure is equipped with self-compacting concrete adjustment layer between basal layer and precast track plate,
After intensity needs 6~7 days (reaching design strength 80%) after self-compacting concrete perfusion, railway roadbed can be only achieved load-bearing and get on the bus condition.
Subway underground cable tunnel is one-tunnel one-track structure, if first carrying out that is, since being laid with starting point by normal continuous productive process upward construction
Railway roadbed substrate pouring construction after base concrete intensity reaches design requirement, then forward carries out track slab pavement and self-compaction
Filling concrete construction, self-compacting concrete intensity effect under by track plates can not be laid with track and by rail transport track
The construction materials such as plate and self-compacting concrete.And can only be by subway track-laying vehicle handling, haul distance farthest reaches 500m or so, due to
The subway track-laying vehicle speed of service is slower, seriously affects construction efficiency, and circulation material usage quantity is also uneconomical greatly, tries by early period
It tests the comprehensive progress indicator that is laid with of precast track plate railway roadbed and there was only 10m/d.
Summary of the invention
The present invention solidifies the waiting time for self-compacting concrete in subway underground cable precast track plate railway roadbed laying construction
It is longer, it influences precast track plate railway roadbed and continuously constructs and the problem of construction efficiency, provide a kind of railway roadbed using substrate along doing rail
The method of the inverse paving of guidance tape.
The technical scheme is that
A kind of subway precast track plate railway roadbed laying method, characterized by comprising:
Along paving step: substrate certain distance of constructing forward along construction direction；
Inverse paving step: the basad construction prime direction in position is completed from substrate and carries out track slab pavement construction；
It repeats along paving step and inverse paving step.
Subway underground cable precast track plate solid concrete roabed structure includes: armored concrete substrate, separation layer, limit from bottom to up
Position groove, self-compacting concrete filled layer, precast track plate, rail and snap fit part.
Include: step 1 along paving step: preparation of construction, Tunnel Base cleaning, CP III control net networking survey and set, and install subway
Track-laying vehicle rail；Step 2: reinforced concrete bottom pour mold is built；Step 3: basal surface is laid with temporary track route.In step 3
In, remove substrate construction and completed the track-laying vehicle rail and template of section, by the interim subway track-laying vehicle rail of dismounting and
The direction of advance of the basad construction such as template is transported.
Inverse paving step includes: step a: installation track-laying vehicle rail removes bed board section temporary line；Step b: track plates position
Sample is put, separation layer, limiting groove and reinforced mesh are laid with and installation；Step c: precast track plate transport, laying and accurate adjustment；Step
Rapid d: installation self-compacting concrete filled layer template and pre-track board fixer；Step e: self-compacting concrete filled layer fills
Note, rail and the installation of snap fit part.
When executing along paving step, one complete operation shift of substrate construction is recycled comprising maintenance area 1, maintenance area 2, is applied
Work area 1, construction area 2 totally 4 operation sections.
When executing inverse paving step, a complete operation shift circulation includes construction area 3 and construction area 4, and construction area 3 is
The current section for carrying out track slab pavement and self-compacting concrete perfusion, construction area 4 are that completion track slab pavement and self-compaction are mixed
The section of solidifying soil perfusion.
In step a, the interim subway track-laying vehicle rail and template in Demolition Construction area 4 are installed on construction area 3.
Beneficial effects of the present invention:
Precast slab ballast bed laying is carried out using this method, can solve in the subway underground cable one-tunnel one-track tunnel confined space,
The longer influence continuously constructed to track plates of strong time such as after completion self-compacting concrete pouring construction, construction can form flowing water company
Continuous operation, the comprehensive progress indicator that is laid with of precast track plate railway roadbed greatly shorten pre-track by being promoted along paving 10m/d to 45m/d
The plate railway roadbed laying construction period.
Detailed description of the invention:
Fig. 1, underground cable precast track plate ballast bed structure figure.
Fig. 2, precast track plate railway roadbed " spread " sequence of construction schematic diagram.
Fig. 3, substrate " along paving " 1 work cycle Work sectors distribution map of construction.
Fig. 4, precast track plate " spread " 1 work cycle Work sectors distribution map of construction.
Specific embodiment
Specific implementation of the invention is made a detailed description with reference to the accompanying drawings of the specification.
Embodiment 1: embodiment: the present embodiment is in No. 9 line precast track plate Monolithic Track Bed Construction tissues of subway in Shanghai
Implement, completes precast track plate solid concrete roabed 22.02km altogether.Subway underground cable precast track plate solid concrete roabed structure is from bottom to up
Include: armored concrete substrate 1., separation layer 2., limiting groove 5., self-compacting concrete filled layer 3., precast track plate 4.,
Rail and snap fit part are 6.；It is laid in following manner:
The construction of substrate is executed along paving step:
Step 1: the preparation before doing substrate (i.e. tunnel inverted arch backfills) construction is surveyed and sets III control point CP, substrate is clear
Reason and surveying and locating install track-laying vehicle rail.
Step 2: carrying out substrate construction, including the binding of substrate reinforcing bar, installation template complete concreting, remove mould
Plate, cleaning, finishing and maintenance.Substrate is constructed using clockwise direction, i.e., 1 is carried out from tracklaying base or feed opening " from the near to the distant "~
2 section substrate " along paving " constructions, one complete operation shift of substrate construction recycle comprising maintenance area 1, maintenance area 2, construct
Area 1, construction area 2 totally 4 operation sections.
Step 3: substrate construction is completed after reaching intensity, is installed temporary track route in basal surface, is sent for track roof flat
The transport of wooden handcart progress concrete material.Substrate construction is removed simultaneously to have completed the track-laying vehicle rail and template of section, will be torn open
The direction of advance of the basad construction such as the interim subway track-laying vehicle rail removed and template is transported.
After the completion of substrate, the basad construction prime direction in position is completed from the section substrate and carries out track slab pavement.Track
Plate, which is laid with, uses " laid process ", i.e., after 1~2 section is completed in substrate construction, opposed substrate is taken from tracklaying base or blanking
The mode of mouth " from the distant to the near " carries out track plates " spreading " and self-compacting concrete pouring construction.
Paving step includes: step 1: installation track-laying vehicle rail removes bed board section temporary line；Step 2: track plates
Position setting-out → separation layer is 2., limiting groove is 3. laid with reinforced mesh and installation；Step 3: 5. precast track plate is transported, is spread
And if accurate adjustment；Step 4: 4. 5. template and precast track plate fix device to installation self-compacting concrete filled layer；Step 5: from
Air-free concrete filled layer 4. 6. install by perfusion → rail and snap fit part；Step 6: subsequent construction process.
It includes " completing track plates that a complete operation shift circulation, which is perfused, in live track slab pavement and self-compacting concrete
It is laid with and section is perfused in self-compacting concrete perfusion section, track slab pavement on duty and self-compacting concrete " totally 2 operation areas
Section, each operation section length is respectively 90 meters, does not get on the bus, is avoided certainly after the completion of the perfusion of Work sectors track plates self-compacting concrete
Air-free concrete preloading, construction are continuous.
Track slab pavement carries out continuous productive process by the following terms:
Location is completed first is that removing 3 temporary track route of temporary construction area and being installed on 4 track plates of construction area, track-laying vehicle is installed
Rail, track Board position setting-out；
Second is that being laid with separation layer and elastic insert, reinforced mesh is installed；
Third is that finished product track plate transporting is to operation side, track plates are using track-laying vehicle handling, laying and preliminary operation in place；
Fourth is that track slab precision adjustment, installation template, fixed device, control net and mating measuring system and work using track foundation
Installing is standby to carry out the accurate adjustment of track plates geometric position；
Fifth is that perfusion self-compacting concrete.Self-compacting concrete transport transports 9m using railcar in hole3Concrete tank arrives
It is imported again after in homemade 2.5m3Canister is lifted by track-laying vehicle and completes live self-compacting concrete pouring construction.
Claims (8)
1. a kind of subway precast track plate railway roadbed laying method, characterized by comprising:
Along paving step: substrate certain distance of constructing forward along construction direction；
Inverse paving step: the basad construction prime direction in position is completed from substrate and carries out track slab pavement construction；
It repeats along paving step and inverse paving step.
2. subway precast track plate railway roadbed laying method according to claim 1, it is characterised in that: subway underground cable is prefabricated
Track plates solid concrete roabed structure includes: that armored concrete substrate, separation layer, limiting groove, self-compacting concrete are filled out from bottom to up
Fill layer, precast track plate, rail and snap fit part.
3. subway precast track plate railway roadbed laying method according to claim 2, it is characterised in that suitable paving step includes: step
Rapid one: preparation of construction, Tunnel Base cleaning, CP III control net networking survey and set, and install subway track-laying vehicle rail；Step 2: steel
Reinforced concrete substrate pours；Step 3: basal surface is laid with temporary track route.
4. subway precast track plate railway roadbed laying method according to claim 2, it is characterised in that inverse paving step includes: step
Rapid a: installation track-laying vehicle rail is removed to bed board section temporary track route；Step b: track Board position setting-out, separation layer, limit
Position groove and reinforced mesh are laid with and installation；Step c: precast track plate transport, laying and accurate adjustment；Step d: installation self-compaction is mixed
Solidifying soil filled layer template and pre-track board fixer；Step e: the perfusion of self-compacting concrete filled layer, rail and snap fit part
Installation.
5. subway precast track plate railway roadbed laying method according to claim 2, it is characterised in that: executing along paving step
When, substrate constructs a complete operation shift circulation comprising conserving area 1, maintenance area 2, construction area 1, totally 4 operations of construction area 2
Section.
6. subway precast track plate railway roadbed laying method according to claim 4, it is characterised in that: executing inverse paving step
When, a complete operation shift circulation includes construction area 3 and construction area 4, construction area 3 be it is current carry out track slab pavement and from
The section of air-free concrete perfusion, construction area 4 are the sections for completing track slab pavement and self-compacting concrete perfusion.
7. subway precast track plate railway roadbed laying method according to claim 6, it is characterised in that: in step a, will tear open
Except the interim subway track-laying vehicle rail and template of construction area 4 are installed on construction area 3.
8. subway precast track plate railway roadbed laying method according to claim 3, it is characterised in that: in step 3, tear open
Except substrate construction has been completed the track-laying vehicle rail and template of section, by the interim subway track-laying vehicle rail of dismounting and template etc.
The direction of advance of basad construction is transported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637431.3A CN109518544B (en) | 2018-12-29 | 2018-12-29 | Method for laying subway prefabricated track slab track bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811637431.3A CN109518544B (en) | 2018-12-29 | 2018-12-29 | Method for laying subway prefabricated track slab track bed |
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| Publication Number | Publication Date |
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| CN109518544A true CN109518544A (en) | 2019-03-26 |
| CN109518544B CN109518544B (en) | 2022-04-08 |
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| CN201811637431.3A Active CN109518544B (en) | 2018-12-29 | 2018-12-29 | Method for laying subway prefabricated track slab track bed |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851154A (en) * | 2020-06-30 | 2020-10-30 | 中国电建市政建设集团有限公司 | Base pre-construction method based on cast-in-situ combined type damping cushion ballast bed |
| CN112239969A (en) * | 2020-08-24 | 2021-01-19 | 中铁工程设计咨询集团有限公司 | Prefabricated assembled damping track system |
| CN112962366A (en) * | 2021-03-04 | 2021-06-15 | 中铁二局集团有限公司 | Reverse paving construction method for CRTS III type track slab in mountainous area |
| CN115595836A (en) * | 2022-11-08 | 2023-01-13 | 中铁五局集团第六工程有限责任公司（Cn） | Construction method for subsection process of subway precast track slab track bed |
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| EP1130162A2 (en) * | 2000-02-29 | 2001-09-05 | Pfleiderer Infrastrukturtechnik GmbH & Co. KG | Concrete-free sleeper |
| CN104480802A (en) * | 2014-11-20 | 2015-04-01 | 中铁八局集团有限公司 | Construction method of CRTS III plate type ballastless track |
| CN106758555A (en) * | 2017-01-13 | 2017-05-31 | 中铁工程机械研究设计院有限公司 | Subway integrated sleeper bed construction method |
| CN107178010A (en) * | 2017-07-06 | 2017-09-19 | 中铁上海工程局集团有限公司 | A kind of city track traffic engineering assembled track laying device and method |
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| EP1130162A2 (en) * | 2000-02-29 | 2001-09-05 | Pfleiderer Infrastrukturtechnik GmbH & Co. KG | Concrete-free sleeper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851154A (en) * | 2020-06-30 | 2020-10-30 | 中国电建市政建设集团有限公司 | Base pre-construction method based on cast-in-situ combined type damping cushion ballast bed |
| CN112239969A (en) * | 2020-08-24 | 2021-01-19 | 中铁工程设计咨询集团有限公司 | Prefabricated assembled damping track system |
| CN112962366A (en) * | 2021-03-04 | 2021-06-15 | 中铁二局集团有限公司 | Reverse paving construction method for CRTS III type track slab in mountainous area |
| CN115595836A (en) * | 2022-11-08 | 2023-01-13 | 中铁五局集团第六工程有限责任公司（Cn） | Construction method for subsection process of subway precast track slab track bed |
| CN115595836B (en) * | 2022-11-08 | 2024-04-30 | 中铁五局集团第六工程有限责任公司 | Construction method for sub-section process of underground iron prefabricated track slab track bed |
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| Publication number | Publication date |
|---|---|
| CN109518544B (en) | 2022-04-08 |
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