CN102888791B - Maintenance structure and maintenance method for plate-type ballastless track - Google Patents
Maintenance structure and maintenance method for plate-type ballastless track Download PDFInfo
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- CN102888791B CN102888791B CN201210391049.5A CN201210391049A CN102888791B CN 102888791 B CN102888791 B CN 102888791B CN 201210391049 A CN201210391049 A CN 201210391049A CN 102888791 B CN102888791 B CN 102888791B
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Abstract
The invention relates to a maintenance structure for a plate-type ballastless track. The maintenance structure comprises steel rails 1, fasteners 2, a track board 3, a maintenance filling layer 4, a CA (cement asphalt) mortar layer 5 and a jacking mechanism, wherein the steel rails 1 are fixed on the track board 3 through the fasteners 2; the maintenance filling layer 4 is arranged between the track board 3 and the CA mortar layer 5; the jacking mechanism comprises force-bearing components 6, fastening components 7 and jacking devices 8; the force-bearing components 6 are fixedly connected with the track board 3 through the fastening components 7; and the jacking devices 8 lift up the track board 3 through the force-bearing components 6. The invention also relates to a maintenance method for the plate-type ballastless track. The method comprises the main procedures of measuring a route, adjusting a longitudinal slope, jacking the track board, pouring quick set mortar under the board, finely adjusting the route, and the like. Compared with the prior art, the maintenance structure and the maintenance method are improved in maintenance time and cost, endurance quality, and operation and working environment of workers.
Description
Technical field
The present invention relates to a kind of orbital maintenance structure and method thereof, particularly a kind of plate-type ballastless track maintaining structure and method thereof, belong to railroad track field.
Background technology
At present, known high-speed railway plate type ballastless track ballast bed structure forms by three layers, is track plates, CA mortar and base respectively.Track is in use subject to the many factors such as wind, frost, rain, snow, earthquake, flood, Decline or rise of groundwater level, unsuitable distortion will be there is in its plane curve and vertical curve, have a negative impact to the safety of structure after this change exceedes certain limit, such as, uneven settlement of foundation is more than 30mm, exceed the adjustment amount of fastener, have a negative impact to the train of high-speed cruising.Therefore, need to keep in repair high speed railway track railway roadbed.The method generally adopted in the industry installs backing plate additional under fastener, but the adjusting range of backing plate is limited, can not meet the requirement of safe railway operation in some cases." ballastless track of high-speed railway line rule (trying) " that the Ministry of Railways promulgates is with reference to some method for maintaining of Japanese plate-type ballastless track, when track structure occurs being greater than 30mm gap, main employing resin material is repaired gap, but this material price is expensive, and maintenance cost is several times of newly-built expense, and, complicated construction technique, operation easier is also comparatively large, therefore, implements difficulty larger.
Summary of the invention
The present invention's a kind of plate-type ballastless track maintaining structure and method for maintaining thereof disclose new technical scheme, packing layer is added between track plates and CA screed, specifically adopt packed fast solidifying mortar to add the maintenance technique of composite material isolation bed course, solve ordi-nary maintenance and can not meet orbital motion needs and the larger problem of maintenance difficulty.
Plate-type ballastless track maintaining structure of the present invention comprises rail 1, fastener 2, track plates 3, maintenance packing layer 4, CA screed 5 and lifting body.Rail 1 is fixed on track plates 3 by fastener 2, maintenance packing layer 4 is arranged between track plates 3 and CA screed 5, lifting body comprises holds power parts 6, secure component 7 and lift-up device 8, hold power parts 6 to be fixedly connected with track plates 3 by secure component 7, track plates 3 upwards lifts by holding power parts 6 by lift-up device 8.
The method for maintaining of plate-type ballastless track of the present invention comprises step: (1) measures the radius of vertical curve of maintenance position; (2) track length and plan top lifting height that need repairing is calculated according to the above-mentioned radius of vertical curve recorded; (3) remove fastener, utilize track jack jacking rail, remove the padded backing plate under fastener; (4) lifting body is utilized to lift track plates; (5) packing material is placed in maintenance packing layer position; (6) adjust the orbit parameter of maintenance position, confirm that orbital maintenance section reaches the standard of setting.
Plate-type ballastless track maintaining structure of the present invention provides a kind of scheme of track rapid-maintenance, method for maintaining then discloses the embodiment of mating with above-mentioned maintaining structure, compare existing scheme in maintenance time, cost and endurance quality, also have on operative's operating environment and all have large improvement.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention CRTS I-type plate-type non-fragment orbit maintaining structure schematic diagram.
Fig. 2 is embodiment of the present invention CRTS II plate-type non-fragment orbit maintaining structure schematic diagram.
In Fig. 1 ~ 2,1 is rail, and 2 is fasteners, and 3 is track plates, and 4 is maintenance packing layers, and 5 is CA screeds, and 6 is hold power parts, and 7 is secure components, and 8 is lift-up device, and 9 is chipping filler layers.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As illustrated in fig. 1 and 2, the CRTS I type of plate-type ballastless track maintaining structure of the present invention and CRTS II plate-type non-fragment orbit maintaining structure schematic diagram.Plate-type ballastless track maintaining structure comprises rail 1, fastener 2, track plates 3, maintenance packing layer 4, CA screed 5 and lifting body.Rail 1 is fixed on track plates 3 by fastener 2, and maintenance packing layer 4 is arranged between track plates 3 and CA screed 5.Lifting body comprises holds power parts 6, secure component 7 and lift-up device 8, and holding that power parts 6 can adopt is T-shape steel, and secure component 7 can be bolt or spiral pin, and lift-up device 8 can be jack.Hold power parts 6 to be fixedly connected with track plates 3 by secure component 7, secure component 7 and track plates 3 can adopt internal and external threads to be fastenedly connected, and track plates 3 upwards lifts by holding power parts 6 by lift-up device 8.
This programme introduces maintenance packing layer 4 and adopts lifting body to arrange the structure of maintenance packing layer 4, solves under only relying on fastener and installs the problem that backing plate can not reach maintenance requirement additional.
Often there is the phenomenon that CA screed 5 is damaged, fall block in the case back warp damaged at CRTS II plate-type non-fragment orbit, find through research, when the uneven sedimentation of roadbed, track plates produces with CA screed and is separated, when train passes through, track plates and rail produce elastic deformation, CA screed is produced and pats compressive stress, thus cause the generation of above-mentioned infringement.In order to address this problem, this programme arranges chipping filler layer 9 in CA screed 5, and chipping filler layer 9 fills up the damaged part at CA screed 5.
Rail system carries heavy transport task, only could occur of short duration idle period at the non-peak period that transport power is sparse under normal circumstances, and this just requires that the maintenance work of track must complete within these of short duration time periods.In order to meet the requirement of this harshness, the maintenance packing layer 4 of this programme can comprise the bag of fast hard mortar described in fast hard mortar and splendid attire, first at repairing position putting bag body, then by the fast hard mortar injection that is stirred in it.In this programme, the rate of set of fast hard mortar and intensity are the keys of problem, therefore, the fast hard mortar of this programme is preferably made up of ferrous aluminate 50 parts, fine sand 80 parts, mulseal 20 parts, 14 parts, water and Admixture 3 parts, and described Admixture is by accounting for mass percent 90% polycarboxylate water-reducer and 10% natrium nitrosum forms.Equally, not fragile in order to ensure maintenance packing layer 4, the bag preferred nonwoven chemical fabric material of this programme.When rush repair, the maintenance packing layer 4 of this programme can also adopt plank, but the material of plank, size and thickness should reach certain standard, and this standard can specifically be determined as the case may be, the length of usual plank is not less than 1000mm, and width is not less than 150mm.
In order to implement above-mentioned maintaining structure, the method for maintaining that this programme adopts comprises step:
(1) radius of vertical curve of maintenance position is measured.First, utilize construction CPIII net reserved outside circuit as bench mark, measure from the side slope point of circuit, every 5m survey mark, measure length and should reach second knick point.After measurement completes, altitude data successively line is drawn vertical curve, calculate maximum versed sine.
(2) track length and plan top lifting height that need repairing is calculated according to the above-mentioned radius of vertical curve recorded.After calculating completes, configure corresponding power tool and material according to the result scheduling job personnel obtained.
(3) remove fastener, utilize track jack jacking rail, remove the padded backing plate under fastener.After dismounting operation completes, rail can be returned and put original position, also can keep jacking state, thus ease off the pressure for next step jacking track plate.
(4) lifting body is utilized to lift track plates.Specifically, erection electronic level, measure first piece, middle one piece and last block track plates rail surface height value, calculate and need the height of jacking track plate, jacking first piece, middle one piece and last block track plates to calculated height, fastening first piece, the fastener of intermediate mass and last block track plates, again check measurement elevation, the rail observing first piece and last block linkage section to, can not occur curved point, song such as to turn round at the problem.
(5) packing material is placed in maintenance packing layer position.Specifically, first lay bag at desired location, then will stir the fast hard mortar injection for preparing in it.At some in emergency circumstances, plank etc. can also be taked to be packed in desired location, but the quality of sheet material and size should specifically be determined as the case may be, the length of usual sheet material is not less than 1000mm, and width is not less than 150mm.
(6) adjust the orbit parameter of maintenance position, confirm that orbital maintenance section reaches the standard of setting.After completing above-mentioned job step, should guarantee that the track parameters after keeping in repair meets the requirement of specifying to operation quality inspection.Last site clearing, recovers normally to be open to traffic state.
This programme is in the operation process of maintenance CRTS II plate-type non-fragment orbit; usually the operation procedure repairing CA screed is also comprised; this step of repairing CA screed should be arranged between above-mentioned steps (4) and step (5); specifically; first the damaged part of CA screed is cleared up; fragment and residue are cleaned out, then the chipping filler modulated is cast in damaged part, the chipping filler that this programme adopts can be the special material that the industry is general.
This programme plate-type ballastless track maintaining structure and method for maintaining thereof are not limited to embodiment scope of disclosure, and those skilled in the art also belong to the scope of this programme in conjunction with the alternative that common practise is made according to this programme.
Claims (8)
1. a plate-type ballastless track maintaining structure, comprise rail (1), fastener (2), track plates (3), maintenance packing layer (4), CA screed (5) and lifting body, rail (1) is fixed on track plates (3) by fastener (2), maintenance packing layer (4) is arranged between track plates (3) and CA screed (5), described lifting body comprises holds power parts (6), secure component (7) and lift-up device (8), hold power parts (6) to be fixedly connected with track plates (3) by secure component (7), track plates (3) upwards lifts by holding power parts (6) by lift-up device (8), holding power parts (6) is T-shape steel, and secure component (7) is bolt or spiral pin, and lift-up device (8) is jack, and secure component (7) and track plates (3) internal and external threads are fastenedly connected.
2. maintaining structure according to claim 1, is characterized in that, also comprises chipping filler layer (9) in CA screed (5), and chipping filler layer (9) fills up the damaged part in CA screed (5).
3. maintaining structure according to claim 1 and 2, is characterized in that, maintenance packing layer (4) comprises the bag of fast hard mortar described in fast hard mortar and splendid attire.
4. maintaining structure according to claim 3, it is characterized in that, described fast hard mortar is made up of ferrous aluminate 50 parts, fine sand 80 parts, mulseal 20 parts, 14 parts, water and Admixture 3 parts, and described Admixture is by accounting for mass percent 90% polycarboxylate water-reducer and 10% natrium nitrosum forms; The material of described bag is nonwoven chemical fabric.
5. maintaining structure according to claim 1 and 2, is characterized in that, maintenance packing layer (4) is plank, and the length of described plank is not less than 1000mm, and the width of described plank is not less than 150mm.
6. the method for maintaining of plate-type ballastless track maintaining structure according to claim 1, comprises step:
(1) radius of vertical curve of maintenance position is measured;
(2) track length and plan top lifting height that need repairing is calculated according to the above-mentioned radius of vertical curve recorded;
(3) remove fastener, utilize track jack jacking rail, remove the padded backing plate under fastener;
(4) lifting body is utilized to lift track plates;
(5) packing material is placed in maintenance packing layer position;
(6) adjust the orbit parameter of maintenance position, confirm that orbital maintenance section reaches the standard of setting.
7. method according to claim 6, is characterized in that, in step (5), described packing material is bag or the plank of built-in fast hard mortar.
8. method according to claim 7, is characterized in that, between step (4) and step (5), also have a step of repairing CA screed, the step of described repairing CA screed comprises:
(1) damaged part of CA screed is cleared up;
(2) chipping filler is placed at the position after above-mentioned cleaning.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210391049.5A CN102888791B (en) | 2012-10-15 | 2012-10-15 | Maintenance structure and maintenance method for plate-type ballastless track |
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| CN201210391049.5A CN102888791B (en) | 2012-10-15 | 2012-10-15 | Maintenance structure and maintenance method for plate-type ballastless track |
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| CN102888791A CN102888791A (en) | 2013-01-23 |
| CN102888791B true CN102888791B (en) | 2015-07-01 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103132398B (en) * | 2013-03-21 | 2015-08-26 | 中国铁道科学研究院金属及化学研究所 | A kind of method for maintaining of I-type plate-type non-fragment orbit |
| CN103233400A (en) * | 2013-05-22 | 2013-08-07 | 中铁二院工程集团有限责任公司 | Ballastless track railway bridge joint differential settlement adjusting device |
| CN103757993B (en) * | 2013-12-27 | 2016-02-17 | 北京中铁瑞威基础工程有限公司 | High-speed railway subgrade sedimentation repair system and method |
| JP2015138395A (en) * | 2014-01-22 | 2015-07-30 | 三菱重工業株式会社 | Maintenance management device, maintenance management method, and program |
| CN103952952B (en) * | 2014-05-13 | 2016-06-22 | 中铁二十四局集团安徽工程有限公司 | High ferro CRTS II plate-type ballastless track boards gap regulation method |
| CN104988816A (en) * | 2015-05-26 | 2015-10-21 | 上海同罡建筑工程有限公司 | Track board lifting method |
| CN104928999B (en) * | 2015-06-18 | 2017-07-04 | 董明 | A kind of non-fragment orbit lifting deviation correcting device and lifting restorative procedure |
| CN105220582B (en) * | 2015-08-25 | 2018-01-30 | 中铁三局集团有限公司 | Solid concrete roabed and tunnel bottom Disease Treatment method based on combined support and slip casting template |
| CN106436492A (en) * | 2015-12-30 | 2017-02-22 | 中国铁道科学研究院铁道建筑研究所 | Maintaining method of base plates of CRTS II-shaped plate type ballastless tracks |
| CN105970747A (en) * | 2016-05-20 | 2016-09-28 | 上海同罡建筑工程有限公司 | Steel member for track board lifting and jacking method of steel member |
| CN106840899B (en) * | 2017-03-30 | 2019-10-01 | 西南交通大学 | Compression bar stabilization testing device |
| CN113089394A (en) * | 2021-03-26 | 2021-07-09 | 西南交通大学 | Mechanical lifting and grouting reinforcement rapid repairing method for supporting layer of double-block ballastless track |
| CN113235338B (en) * | 2021-05-20 | 2023-05-12 | 刘新 | Method for repairing rail bottom slope by using rail bottom slope repairing tool |
| CN113338092A (en) * | 2021-06-21 | 2021-09-03 | 湖北木之君工程材料有限公司 | Method for repairing damage of ballastless track filling layer |
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