CN103374865B - Construction method for longitudinally connecting and laying ballastless track slabs - Google Patents
Construction method for longitudinally connecting and laying ballastless track slabs Download PDFInfo
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- CN103374865B CN103374865B CN201210114868.5A CN201210114868A CN103374865B CN 103374865 B CN103374865 B CN 103374865B CN 201210114868 A CN201210114868 A CN 201210114868A CN 103374865 B CN103374865 B CN 103374865B
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Abstract
The invention discloses a construction method for longitudinally connecting and laying ballastless track slabs and relates to the field of ballastless track slabs. The method includes the steps of 1, laying a support layer; 2, laying an isolation layer; 3, laying a reinforced mesh; 4, pre-laying track slabs; 5, connecting the track slabs; 6, pouring inter-slab resin mortar; 7, pouring self-compacting concrete. The method has the advantages that the isolation layer is laid during the construction process, the concrete is prevented from permeating from dummy joints when the self-compacting concrete is poured, and accordingly future maintenance is facilitated; the self-compacting concrete isolation layer is higher in self-strength than the traditional mortar adjusting layer, the track slabs are tightly combined, and accordingly durability of a whole ballast track is greatly improved.
Description
Technical field
The present invention relates to fragment-free track slab field, particularly fragment-free track slab is vertical connects laying construction method.
Background technology
Notoriously, in slab track structure, fragment-free track slab is that therefore track plates is in whole railway structure the load Transmit evenly from rail and fastener to concrete cushion, plays vital effect.Therefore the laying work of fragment-free track slab also becomes a ring important in whole railway construction process, and the quality of laying quality and the length of laying duration, directly affect the quality of whole railway construction and complete the duration.
The process of deployment of tradition fragment-free track slab is, set up in the both sides of the base of having constructed and install mould, then fragment-free track slab is laid, and in mould, water CA mortar by the perfusing hole on fragment-free track slab, formed after CA screed until CA mortar coagulation forming, disassemble the laying that mould completes fragment-free track slab again, but the performance of CA screed is difficult to the life requirement meeting non-fragment orbit high-speed railway.And existing track plates is when connection and Shi Hanzhang, and existing method of attachment makes whole work progress efficiency low, schedule delays.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency existing in prior art, a kind of vertical even laying construction method of fragment-free track slab that can improve track durability and efficiency of construction is provided.
In order to realize foregoing invention object, the invention provides following technical scheme:
A kind of fragment-free track slab is vertical connects laying construction method, and described laying construction method comprises the following steps:
(1) supporting layer is laid: on roadbed, lay one deck hydraulicity supporting layer, described supporting layer is cut with baste, carry out an acceptance inspection after described supporting layer is completed, setting-out is carried out to the supporting layer center line of acceptance(check);
(2) laying water-proof coiled material: laying water-proof coiled material above the baste of supporting layer;
(3) reinforced mesh is laid: above supporting layer and waterproof roll, lay reinforced mesh between two parties;
(4) overlay track plates: track plates is laid in advance the desired location on track circuit, and track plates two ends center line aligns with setting-out center line, and accurate adjustment is carried out until meet design requirement in the position of track plates;
(5) connecting rail guidance tape: to be overlay by track plates adjacent on track circuit according to above-mentioned steps, accurate adjustment, makes the plate gap between adjacent orbit plate reach designing requirement; At track plates prestressed steel bar place mounted connector, and instrument is utilized to apply design torsion to the high-strength bolt on connector;
(6) pour into resin mortar between plate: connector installation after applying torsion, at track plate end brushing bonding agent, then set up template at track plate seam place, wherein bed die is wider than track plate kerf spacing, side form is higher than the spacing of track plates and supporting layer; After bonding agent solidifies, to perfusion resin mortar between plate seam, the upper surface having poured into resin mortar is limited not stretch out track plates upper surface;
(7) self-compacting concrete is poured into: set up template in the region surrounding that supporting layer and track plates surround, described template comprises end mould and side form, its middle-end mould is set up near the end of track plates, side form is arranged beyond track plates side, so that pour into self-compacting concrete by the gap of side form and track plates side;
In template institute region, pour into self-compacting concrete, the soffit of self-compacting concrete and supporting layer, waterproof roll and track plates is combined closely, form self-compacting concrete adjustment layer, aforementioned reinforced mesh is the skeleton of self-compacting concrete adjustment layer; Treat the intensity of described self-compacting concrete reach designing requirement after form removal, complete the laying of track plates.
Described central line lofting is the position being convenient to control track plates; Described baste refers to the seam cutting out the flexible sedimentation being convenient to supporting layer on supporting layer, and on baste, the effect of laying water-proof coiled material is when pouring into self-compacting concrete, prevents concrete from baste is filled up, is convenient to later maintenance; Described reinforced mesh can make self-compacting concrete closely be connected with track plates, adds the intensity of self-compacting concrete adjustment layer, the life-span of elongated rail; Described self-compacting concrete and reinforced mesh are closely coupled to track plates soffit, and described self-compacting concrete can strengthen the intensity of track plates; The Mould Breadth degree that supporting layer is set up, wider than track plates, is narrower than supporting layer; The template set up between plate seam can touch track plates completely, and when being to prevent from pouring into resin mortar between plate seam, mortar is omitted and entered self-compacting concrete.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, step (2) in described laying construction method is specially: the waterproof roll length of laying at supporting layer baste place is greater than the width of supporting layer baste, and the width of described waterproof roll is greater than the width of described track plates.The baste place of supporting layer can cover by described waterproof roll completely.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, and the step (3) in described laying construction method is specially: when laying reinforced mesh on the location that superelevation is more than or equal to 50mm, and described reinforced mesh is laid toward outside curve.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, and the step (4) in described laying construction method is specially: described track plates two ends center line aligns with setting-out center line, and deviation is less than or equal to 5mm.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, and the step (5) in described laying construction method is specially: the earth terminal of described track plates is linked in sequence successively, and the gap of plate seam is 60mm ± 5mm.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, step (6) in described laying construction method is specially: between track plate seam during modeling, and bed die is wider than track plate seam 1 ~ 1.5cm, and side form is higher than the spacing 5 ~ 10mm of track plates and supporting layer.Described template wider than track plate seam, higher than the spacing of track plates and supporting layer be in order to prevent from pour into plate stitch between resin mortar time, mortar omission enters self-compacting concrete.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, and the step (6) in described laying construction method is specially: between track plate seam during modeling, for not closely connected place, utilize sealing compound to seal.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, and the step (6) in described laying construction method is specially: when pouring into resin mortar between plate seam, for superrelation on curve location, can adopt layering, subsectin bottler mode.Described layering, subsectin bottler mode are height in order to ensure resin mortar and track plates upper surface flush.
Preferably, above-mentioned fragment-free track slab is vertical to be connected in laying construction method, and when described track plates is laid on bridge, supporting layer covers and is paved with by described self-compacting concrete adjustment layer completely.
compared with prior art, beneficial effect of the present invention:
1, connect laying construction method because fragment-free track slab of the present invention is vertical in work progress, laid waterproof roll, when pouring into self-compacting concrete, preventing baste place from infiltrating concrete, being convenient to later maintenance.
2, the present invention adopts self-compacting concrete adjustment layer, and the intensity mortar adjustment layer intensity than before of itself is high, and is combined closely by track plates, substantially increases the durability of whole non-fragment orbit.
3, the vertical laying construction side that connects of fragment-free track slab of the present invention can realize polylith track plates and connects simultaneously, thus improves efficiency of construction.
Accompanying drawing illustrates:
Fig. 1 is the longitudinal connection construction flow chart of fragment-free track slab of the present invention.
Fig. 2 is non-fragment orbit schematic cross-sectional view of the present invention.
Fig. 3 is non-fragment orbit floor map of the present invention.
Fig. 4 is non-fragment orbit supporting layer baste place of the present invention schematic cross-sectional view.
Mark in figure: 1-supporting layer, 2-self-compacting concrete adjustment layer, 3-track plates, 4-model, 5-baste, 6-separation layer.
Detailed description of the invention
Below in conjunction with test example and detailed description of the invention, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
Embodiment 1
Be laid in example with two pieces without the longitudinal connecting rail guidance tape of the tiny fragments of stone, coal, etc., described track plates 1 length is 4856mm, and superelevation is 49mm; Track plates 2 length is 5350mm, and superelevation is 50mm, described track slab construction flow chart as shown in Figure 1:
(1) supporting layer 1 is laid: on roadbed, lay one deck hydraulicity supporting layer, described supporting layer 1 is cut with baste 5, carry out an acceptance inspection after described supporting layer 1 is completed, setting-out is carried out to the supporting layer center line of acceptance(check);
Adopt total powerstation that the setting-out on hydraulicity supporting layer of plate 1, plate 2 midline position is also used red paint home position, setting-out position is numbered by layout board number.
(2) separation layer is laid: on the baste 5 of supporting layer 1, lay separation layer 6, described separation layer is waterproof roll;
The separation layer length that supporting layer baste is laid is 2400mm, and width is 260mm.When described track plates is laid on bridge, supporting layer covers and is paved with by described separation layer completely.
(3) reinforced mesh is laid: above supporting layer and waterproof roll, lay reinforced mesh;
On plate 1 supporting layer, laying length placed in the middle is 4750mm, and wide is the reinforced mesh of 2610mm; When plate 2 supporting layer lays reinforced mesh, take center line as boundary, the inner side of curve reinforced mesh width is 1205mm, and outside width is 1305mm.
(4) overlay track plates 3: track plates is laid in advance the desired location on track circuit, described track plates two ends center line aligns with setting-out center line, and deviation is 5mm; The earth terminal of described track plates is linked in sequence successively, and the spacing of plate seam is 60mm.
(5) connecting rail guidance tape 3: plate seam is numbered 2# ~ 0# along track construction direction order.
Prestressed steel bar place mounted connector between 2# plate seam, and utilize instrument to apply design torsion to the high-strength bolt on connector;
(6) resin mortar between plate is poured into: between 2# plate seam, complete mounted connector and after applying torsion, at track plate end brushing bonding agent, then set up template at track plate seam place, wherein bed die is wider than track plate kerf spacing 1cm, and side form is higher than the spacing 10mm of track plates and supporting layer; For not closely connected place, sealing compound is utilized to seal; After bonding agent solidifies, to perfusion resin mortar between plate seam, the upper surface having poured into resin mortar is limited not stretch out track plates upper surface;
For superrelation on curve location, layering, subsectin bottler mode can be adopted, guarantee height and the track plates upper surface flush of resin mortar;
Profit uses the same method the perfusion of resin mortar between connection and plate seam carrying out 1#, 0# plate seam.
(7) self-compacting concrete is poured into: the region surrounding surrounded at supporting layer 1 and track plates 3 sets up model, described model comprises end mould and side form, its middle-end mould is set up near the end of track plates, side form is arranged beyond track plates side, self-compacting concrete is poured in the gap of track plates side and side form, the soffit of self-compacting concrete and supporting layer, waterproof roll and track plates is combined closely, form self-compacting concrete adjustment layer, aforementioned reinforced mesh is the skeleton of self-compacting concrete adjustment layer; Treat the intensity of self-compacting concrete adjustment layer 2 get to requirement after form removal, complete the laying of track plates.
Claims (9)
1. fragment-free track slab is vertical connects a laying construction method, and it is characterized in that, described laying construction method comprises the following steps:
(1) supporting layer is laid: on roadbed, lay one deck hydraulicity supporting layer, described supporting layer is cut with baste, carry out an acceptance inspection after described supporting layer is completed, setting-out is carried out to the supporting layer center line of acceptance(check);
(2) laying water-proof coiled material: laying water-proof coiled material above the baste of supporting layer;
(3) reinforced mesh is laid: above supporting layer and waterproof roll, lay reinforced mesh between two parties;
(4) overlay track plates: track plates is laid in advance the desired location on track circuit, and track plates two ends center line aligns with setting-out center line, and accurate adjustment is carried out until meet design requirement in the position of track plates;
(5) connecting rail guidance tape: to be overlay by track plates adjacent on track circuit according to above-mentioned steps, accurate adjustment, makes the plate gap between adjacent orbit plate reach designing requirement; At track plates prestressed steel bar place mounted connector, and apply design torsion to the high-strength bolt on connector;
(6) pour into resin mortar between plate: connector installation after applying torsion, at track plate end brushing bonding agent, then set up template at track plate seam place, wherein bed die is wider than track plate kerf spacing, side form is higher than the spacing of track plates and supporting layer; After bonding agent solidifies, to perfusion resin mortar between plate seam, the upper surface having poured into resin mortar is limited not stretch out track plates upper surface;
(7) self-compacting concrete is poured into: set up template in the region surrounding that supporting layer and track plates surround, described template comprises end mould and side form, its middle-end mould is set up near the end of track plates, side form is arranged beyond track plates side, so that pour into self-compacting concrete by the gap of side form and track plates side;
In template institute region, pour into self-compacting concrete, the soffit of self-compacting concrete and supporting layer, waterproof roll and track plates is combined closely, form self-compacting concrete adjustment layer, aforementioned reinforced mesh is the skeleton of self-compacting concrete adjustment layer;
Treat the intensity of described self-compacting concrete reach designing requirement after form removal, complete the laying of track plates.
2. fragment-free track slab according to claim 1 is vertical connects laying construction method, it is characterized in that, step (2) in described laying construction method is specially: the waterproof roll length of laying at supporting layer baste place is greater than the width of supporting layer baste, and the width of described waterproof roll is greater than the width of described track plates.
3. fragment-free track slab according to claim 1 is vertical connects laying construction method, it is characterized in that, step (3) in described laying construction method is specially: when laying reinforced mesh on the location that superelevation is more than or equal to 50mm, and described reinforced mesh is laid toward outside curve.
4. fragment-free track slab according to claim 1 is vertical connects laying construction method, and it is characterized in that, the step (4) in described laying construction method is specially: described track plates two ends center line aligns with setting-out center line, and deviation is less than or equal to 5mm.
5. fragment-free track slab according to claim 4 is vertical connects laying construction method, and it is characterized in that, the step (5) in described laying construction method is specially: the end correspondence of described track plates connects, and plate gap is 60mm ± 5mm.
6. fragment-free track slab according to claim 1 is vertical connects laying construction method, it is characterized in that, step (6) in described laying construction method is specially: between track plate seam during modeling, bed die is wider than track plate seam 1 ~ 1.5cm, and side form is higher than the spacing 5 ~ 10mm of track plates and supporting layer.
7. fragment-free track slab according to claim 6 is vertical connects laying construction method, and it is characterized in that, the step (6) in described laying construction method is specially: between track plate seam during modeling, for not closely connected place, utilize sealing compound to seal.
8. fragment-free track slab according to claim 7 is vertical connects laying construction method, it is characterized in that, step (6) in described laying construction method is specially: when pouring into resin mortar between plate seam, for superrelation on curve location, adopt layering, subsectin bottler mode.
9. the fragment-free track slab according to any one in claim 1 to 8 is vertical connects laying construction method, and it is characterized in that, when described track plates is laid on bridge, supporting layer covers and is paved with by described waterproof roll completely.
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| CN201210114868.5A CN103374865B (en) | 2012-04-18 | 2012-04-18 | Construction method for longitudinally connecting and laying ballastless track slabs |
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| CN201210114868.5A CN103374865B (en) | 2012-04-18 | 2012-04-18 | Construction method for longitudinally connecting and laying ballastless track slabs |
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| CN103374865B true CN103374865B (en) | 2015-06-24 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374866B (en) * | 2012-04-28 | 2016-01-13 | 中铁二局股份有限公司 | Fragment-free track slab pavement method |
| CN103952951A (en) * | 2014-04-02 | 2014-07-30 | 北京建鼎国铁工程设计有限公司 | Process for high speed railway ballastless track construction |
| CN105133439B (en) * | 2015-09-30 | 2017-05-31 | 成都市新筑路桥机械股份有限公司 | A kind of embedded ballastless track system for afforesting section |
| CN106272952B (en) * | 2016-08-12 | 2018-10-12 | 中铁三局集团有限公司 | Construction method is adjusted to the dual-direction pre-tensioning system prestressed track plate formwork camber of III types of CRTS |
| CN106988164A (en) * | 2017-05-09 | 2017-07-28 | 中铁二十二局集团第工程有限公司 | Platy ballastless track structure and its construction method |
| CN107101674B (en) * | 2017-06-19 | 2023-08-04 | 中铁六局集团有限公司 | Real-scale test platform for simulating temperature stress effect of ballastless track and construction method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1026320A1 (en) * | 1999-02-08 | 2000-08-09 | Hochtief Aktiengesellschaft | Method for building a ballastless track |
| WO2007087781A1 (en) * | 2006-02-03 | 2007-08-09 | Rail. One Gmbh | Ballastless track for railway vehicles |
| CN101469526A (en) * | 2007-12-28 | 2009-07-01 | 中铁二局股份有限公司 | Slab unballasted railroad switch construction method |
| CN201357484Y (en) * | 2009-01-23 | 2009-12-09 | 秦皇岛老虎重工有限公司 | Sealing structure of ballastless track plate mold |
| CN101603281A (en) * | 2009-07-02 | 2009-12-16 | 中铁二院工程集团有限责任公司 | Integral ballastless track |
| CN101798785A (en) * | 2010-04-08 | 2010-08-11 | 中铁二院工程集团有限责任公司 | Ballastless track structure |
| CN101851884A (en) * | 2010-03-23 | 2010-10-06 | 中国建筑股份有限公司 | Construction method for paving CRTS I-type plate-type ballastless track plate in severe cold area |
| CN101985514A (en) * | 2010-11-03 | 2011-03-16 | 常熟佳发化学有限责任公司 | Thermosetting resin composition and preparation method and using method thereof |
| CN102182120A (en) * | 2011-03-31 | 2011-09-14 | 中铁第四勘察设计院集团有限公司 | Precast slab type ballastless track structure |
| CN102390967A (en) * | 2011-08-11 | 2012-03-28 | 中铁八局集团第四工程有限公司 | Self-compacting concrete for rapid transit railway III-type plate ballastless tracks and preparation method of self-compacting concrete |
-
2012
- 2012-04-18 CN CN201210114868.5A patent/CN103374865B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1026320A1 (en) * | 1999-02-08 | 2000-08-09 | Hochtief Aktiengesellschaft | Method for building a ballastless track |
| WO2007087781A1 (en) * | 2006-02-03 | 2007-08-09 | Rail. One Gmbh | Ballastless track for railway vehicles |
| CN101469526A (en) * | 2007-12-28 | 2009-07-01 | 中铁二局股份有限公司 | Slab unballasted railroad switch construction method |
| CN201357484Y (en) * | 2009-01-23 | 2009-12-09 | 秦皇岛老虎重工有限公司 | Sealing structure of ballastless track plate mold |
| CN101603281A (en) * | 2009-07-02 | 2009-12-16 | 中铁二院工程集团有限责任公司 | Integral ballastless track |
| CN101851884A (en) * | 2010-03-23 | 2010-10-06 | 中国建筑股份有限公司 | Construction method for paving CRTS I-type plate-type ballastless track plate in severe cold area |
| CN101798785A (en) * | 2010-04-08 | 2010-08-11 | 中铁二院工程集团有限责任公司 | Ballastless track structure |
| CN101985514A (en) * | 2010-11-03 | 2011-03-16 | 常熟佳发化学有限责任公司 | Thermosetting resin composition and preparation method and using method thereof |
| CN102182120A (en) * | 2011-03-31 | 2011-09-14 | 中铁第四勘察设计院集团有限公司 | Precast slab type ballastless track structure |
| CN102390967A (en) * | 2011-08-11 | 2012-03-28 | 中铁八局集团第四工程有限公司 | Self-compacting concrete for rapid transit railway III-type plate ballastless tracks and preparation method of self-compacting concrete |
Non-Patent Citations (1)
| Title |
|---|
| 京津城际高速铁路无砟轨道施工技术及装备创新;卿三惠 等;《高速铁路技术》;20100415;第1卷(第1期);第61-65页 * |
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Address after: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Co-patentee after: China Railway Erju Corporation Ching Engineering Co., Ltd. Patentee after: China Railway No. 2 Engineering Group Co., Ltd. Address before: No. 16, Jinniu District Road, Jinniu District Road, Chengdu, Sichuan Co-patentee before: China Railway Erju Corporation Ching Engineering Co., Ltd. Patentee before: CHINA RAILWAY NO.2 BUREAU ENGINEERING CO., LTD. |