CN106192620A - A kind of railway ballastless track supporting layer and substructure change method - Google Patents
A kind of railway ballastless track supporting layer and substructure change method Download PDFInfo
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- CN106192620A CN106192620A CN201610605595.2A CN201610605595A CN106192620A CN 106192620 A CN106192620 A CN 106192620A CN 201610605595 A CN201610605595 A CN 201610605595A CN 106192620 A CN106192620 A CN 106192620A
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- supporting layer
- track
- rail
- railway
- substructure
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Classifications
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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
- 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
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
-
- 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
- E01B29/40—Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The present invention relates to railway ballastless track disease technology for eliminating field, change method in particular to a kind of railway ballastless track supporting layer and substructure.During the point of skylight, the track plates of cut-out is removed, region to be onstructed sets up temporary steel rail and connects operational railway；During the point of skylight, remove interim rail, region to be onstructed sets up steel bearing beam, steel bearing beam is laid current rail and connects operational railway, remove the supporting layer below current rail；During the point of skylight, the lower section casting concrete at current rail forms new supporting layer；Cycle alternation is carried out successively, until all of supporting layer has been changed.By the present invention in that and construction area bulit on stilts passed through rail with steel bearing beam, Along Railway can be properly functioning, need not stop transport, ensure that the properly functioning of track, additionally the present invention can eliminate the disease problem occurred in track underlying support layer and substructure thoroughly, thoroughly eliminate track hidden danger, there is great promotional value.
Description
Technical field
The present invention relates to railway ballastless track disease technology for eliminating field, in particular to a kind of railway ballastless track supporting layer
And substructure changes method.
Background technology
Non-fragment orbit is little with good stability, maintenance workload, by bus comfort level height, track length in service life,
The advantages such as structure height is low are widely used in China Railway High-speed, and meanwhile high-speed railway requires that track must possess high smooth-going
Property, need sub rail foundation structure to have the highest stability.Although it is built or adopt in the Design of High-speed Railway founded a capital, construction etc.
Build measure by unprecedented high standard, but owing to China is vast in territory, railway construction condition is sufficiently complex, still has very
The multifactor stability that may affect non-fragment orbit, such as construction quality, foundation settlement etc..
The supporting layer of ballastless track of high-speed railway and substructure are the passes affecting non-fragment orbit ride comfort and traffic safety
Key factor, owing to there may be the situations such as concrete leakiness, locally geological condition change in construction, causes non-fragment orbit to support
Layer and substructure do not meet design requirement, and fragment-free track slab and supporting layer cracking, deformation may be caused to cause track irregularity,
Although ballastless track structure can be improved by adjustment fastener, lifting track plates, the again measure such as perfusion mortar, dead-end fracture
Unfavoured state, but this method simply cured the symptoms, not the disease, under the High-speed Train Loads of long term frequent, do not obtain the bottom of radical cure
Fault of construction grows with each passing day, and disease can produce again in the course of time, even affects traffic safety, therefore for non-fragment orbit disease
Really produced by supporting layer and substructure defect if verified, then can not only non-fragment orbit be renovated, and need support
Layer and substructure remove reconstruction simultaneously.For high ferro visitor specially, once maintenance shut-downs, the common people will be directly affected and normally go on a journey, make
Become bad social influence, under ensureing secured premise, carry out construction merely with Window time be necessary.At present to nothing
Regulation in the case of tiny fragments of stone, coal, etc. track does not cuts off traffic remains at many technical barriers, be pointed to below non-fragment orbit supporting layer and under
Portion's structure carries out changeing the most difficult under traffic-operating period, thus seek one do not cut off traffic, conjunction safe and reliable, economic
Reason, easy construction, adaptable ballastless track of high-speed railway supporting layer and substructure to change method imperative.
Summary of the invention
Present invention aim to solve the prior art mentioned in the above-mentioned background technology supporting layer at non-fragment orbit
And the problem that it can not be repaired when going wrong in the case of not affecting railway operation by substructure, it is provided that Yi Zhongtie
Road non-fragment orbit supporting layer and substructure change method.
The technical scheme is that a kind of railway ballastless track supporting layer and substructure change method, its feature exists
In: comprise the following steps:
1), the stratum of track both lateral sides is reinforced, vertical by the track plates in region to be onstructed during the point of skylight
Cut off to two ends；
2), during the point of skylight, the track plates of cut-out is removed, second supporting layer in region to be onstructed sets up interim
Rail connects operational railway；
3), during the point of skylight, remove interim rail, second supporting layer in region to be onstructed sets up steel bearing beam, at steel
Lay current rail on bearing beam and connect operational railway, remove the second supporting layer below current rail and substructure thereof；
4), the lower section casting concrete at current rail forms new supporting layer and substructure；
5), after concrete strength reaches requirement, translation steel bearing beam is to next construction point circulation construction, handling track plates
To new supporting layer, and on track plates, reinstall the operational railway at rail connection two ends.
In further step 2, the method setting up interim rail is: in the second supporting layer upper end face frame in region to be onstructed
If the some sleepers along track horizontal direction, sleeper is laid temporary steel rail, use fastener that interim rail is fixed on pillow
On wood, adjust interim rail and longitudinal two ends of rail are connected with the rail on operational railway.
In further step 3, the method setting up steel bearing beam is: under the operational railway at longitudinal two ends in region to be onstructed
Excavate mounting groove, erection support in mounting groove on first supporting layer of side, steel bearing beam is longitudinally set up in two phases along track
To bearing on be suspended in above second supporting layer in region to be onstructed.
Further the installation method of bearing is: the first support below the operational railway at longitudinal direction two ends, region to be onstructed
Cut mounting groove on Ceng, in mounting groove, place a block plate, then lay the rubber of one piece of support stringer in the upper end of steel plate
Plate forms the seat structure of support steel bearing beam.
In further step 3, the laying method of current rail is: by two two longerons being made by I-steel
Longitudinally it is respectively rested on two relative bearings, by the many crossbeams along track lateral arrangement between two longerons along track
It is interconnected to form steel bearing beam structure, current rail is placed in the upper end of longeron, adjust the position of current rail by it with existing
Track connects, and is connected to one with longeron by current rail by fastener.
In further step 5, circulation construction method be: by need remove track below the second supporting layer and under
It is longitudinally split for several isometric circulation construction areas that portion's structure presses track, and each circulation construction area is along track the most successively
It is divided into isometric the first circulation construction cell, the second circulation construction cell and the 3rd circulation construction cell, follows each simultaneously
The first circulation construction cell in ring construction area carries out Demolition Construction, and after having constructed, translation steel bearing beam is executed to the second circulation
The construction of the second circulation construction cell is carried out, the most alternately, until all of circulation construction area is constructed above work order unit
Complete.
In further step 1, the method for stratum consolidation is: if inserted to play on the soil layer of the both lateral sides in region to be onstructed
Dry root bolt anchorage soil layer.
In further step 1, the method for stratum consolidation is: if inserted to play on the soil layer of the both lateral sides in region to be onstructed
Dry root bolt anchorage soil layer.
Advantages of the present invention has: 1, enter non-fragment orbit supporting layer and substructure in the case of not disrupted circuit operation
Row changes, less on driving impact.
2, the disease management occurred for supporting layer and substructure of non-fragment orbit all can use, applied widely, adopts
With steel bearing beam section construction, can quickly renovate the disease region of longer-range, utilize supporting layer that steel bearing beam makes somebody a mere figurehead in construction and
Substructure, by changeing substructure, can administer the mass defect problem of substructure thoroughly, it is to avoid occur two
Secondary disease.
3, during construction, every circuit independently uses a set of steel bearing beam system to reinforce, and therefore constructs and is not affected by distance between centers of tracks,
Due to every line can independent construction, therefore can carry out construction organization according to circuit practical operation situation, easy construction is flexible, construction stream
Aquation operation, without special construction requirement, difficulty of construction is low.
4, arrange a set of steel bearing beam under every circuit supporting layer and substructure are changed, multiple region can be carried out simultaneously
Construction, steel bearing beam can be used, accelerate construction speed, and construction area is divided into the circulation construction cell of multiple little sections,
Not only the segmentation with track structure matches, simultaneously less to structural perturbation, safe and reliable.
5, utilizing little span steel bearing beam to carry out changeing supporting layer and substructure piecemeal, defective substructure can get
Renovating thoroughly, under rail, structure and track structure can recover to design point.
By the present invention in that and passed through by construction area bulit on stilts rail with steel bearing beam, Along Railway can be properly functioning, no
With stoppage in transit, it is ensured that track properly functioning, additionally the present invention can eliminate track underlying support layer and substructure thoroughly
The middle disease problem occurred, thoroughly eliminates track hidden danger, has great promotional value.
Accompanying drawing explanation
The steel bearing beam mounting structure schematic top plan view of Fig. 1: the present invention；
The steel bearing beam mounting structure schematic longitudinal section of Fig. 2: the present invention；
The longeron of Fig. 3: the present invention and the mounting structure schematic diagram of bearing；
The steel bearing beam mounting structure schematic cross-sectional view of Fig. 4: the present invention；
The mounting structure schematic diagram of the interim rail of Fig. 5: the present invention；
Wherein: 1 longeron；2 crossbeams；3 stiffeners；4 pass through rail；5 interim rail；6 first supporting layers；
7 sleepers；8 rubber slabs；9 steel plates；10 risers；11 transverse slats；12 second supporting layers.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1～5, the present embodiment changes the method for supporting layer and substructure to be needed to remove for using steel bearing beam to be set up in
The top of the second supporting layer 12 (as shown in the dotted line frame in Fig. 1) of construction is as the supporting construction of current rail 4, it is ensured that rail
Road circuit properly functioning.The structure of steel bearing beam is as it is shown in figure 1, include two longerons 1 being longitudinally arranged along track, and longeron 1 is
I-beam structure, the web of longeron 1 is vertically arranged.Formation is connected by the crossbeam 2 along track lateral arrangement between two longerons 1
Overall structure, crossbeam 2 generally uses two pieces of channel-section steel assembly to be made, and the U mouth of two blocks of channel-section steels is supported or opposed and is bolted to connection
For overall structure, the two ends of crossbeam 2 are respectively protruding between two blocks of flange plates of two longerons 1 and form stable frame structure,
Ensure the spacing between longeron.
Support the ability of current rail 4 to further enhance longeron 1, the present embodiment is also at two blocks of flange plates of longeron 1
Between be welded with the stiffener 3 of vertically layout, enhanced the vertical enabling capabilities of whole longeron 1 by stiffener 3, it is to avoid
During train passage, longeron 1 is damaged by pressure.Crossbeam 2 is channel-section steel structure, and stiffener 3 lays respectively at the transverse ends of crossbeam 2, puts more energy into
Plate 3 is deep into the two ends being bolted on crossbeam 2 between two panels channel-section steel, and crossbeam 2 is fixed on longeron 1 by bolt arrangement
On, as shown in Figure 4.Actually stiffener 3 can also be arranged on other positions of longeron 1, however it is necessary that and evades fastener, it is impossible to
Fastener produces interferes.
Below the operational railway at longitudinal two ends that the two ends of longeron 1 are separately fixed at the second supporting layer 12 to be removed
On one supporting layer 6, first supporting layer 6 at two ends being provided with bearing, as shown in figures 2-3, the present embodiment is vertical in region to be onstructed
Cut 15～20mm deep mounting grooves on the first supporting layer 6 below the operational railway at two ends, in mounting groove, place one
Block thickness is the steel plate 9 of 10～20mm, then in rubber slab 8 formation that the upper end of steel plate 9 one piece of thickness of laying is 30～40mm
Hold the seat structure of steel bearing beam.
The two ends of longeron 1 are provided with stopping means, and the stopping means of the present embodiment includes being positioned at longeron 1 end cross both sides
Two blocks of angle steel, angle steel includes the riser 10 being positioned at longeron 1 sidepiece and by below operational railway first of bolt anchoring
Transverse slat 11 on support layer 6, transverse slat 11 is fixed on the steel angle structure of the lower end formation L-type of riser 10, and longeron 1 is positioned at two pieces of risers 10
Between avoid horizontal rocking by the position-limiting action of riser 10.
The two ends of longeron 1 are respectively rested on the rubber slab 8 on first supporting layer 6 at longitudinal two ends in region to be onstructed,
Rubber slab 8 is set and can farthest form cushioning effect, decrease the rigid collision between each parts, it is to avoid parts
Damage.Angle steel and first supporting layer 6 at the spacing longitudinal two ends being fixed on region to be onstructed of bolt are passed through in longitudinal two ends of longeron 1
On.
Owing to the track of high-speed railway is all long-play, the construction period of the present embodiment can only be in the sky of every track
Window point is constructed, and some construction procedure can not be fully finished at a skylight point, it is necessary in several skylights, point is carried out.Track
Plate is in cutting with during removing, the longest, needs the time of one or more skylight point to carry out, and therefore cuts removing
After the track plates cut, need interim rail 5 is installed.As it is shown in figure 5, the installation method of interim rail 5 is: directly execute waiting
Laying railway sleepers 7 on second supporting layer 12 in territory, work area, sleeper 7 is laterally laid according to track, then lays temporary steel rail on sleeper 7
5, the two ends of interim rail 5 are connected with operational railway respectively, to ensure the normal pass of track.
Concrete construction method is: 1, reinforce the stratum of track both lateral sides, and the reinforcement means of the present embodiment is,
Directly inserted to play anchor pole on the soil layer of track both lateral sides, reinforces the soil layer of region to be onstructed both lateral sides, it is to avoid prop up removing
During support layer, there is the phenomenon collapsed in the soil layer of both sides, after soil layer has been reinforced, and indulging the track plates in region to be onstructed
Cutting off to two ends, soil layer is reinforced and the cutting of track plates all can affect the properly functioning of train, it is therefore desirable in skylight, point is carried out；
2), during the point of skylight, use hanging device to be removed by the track plates of cut-out, region to be onstructed sets up interim
Rail 5 connects operational railway, is directly removing the sleeper 7 setting up some direction across bridge above the second supporting layer 12 of track plates,
On sleeper 7, lay temporary steel rail 5 again, the two ends of rail are connected with the rail on operational railway respectively, so can not shadow
Ringing the normal pass of train, the circuit speed of service of interim rail 5 is no more than 45KM/h；
3), during the point of skylight, remove interim rail 5 and sleeper 7, the first supporting layer 6 below operational railway is opened
Digging 15～20mm deep mounting grooves, in mounting groove, one piece of thickness of placement is the steel plate 9 of 10～20mm, then the upper end at steel plate 9
Lay the rubber slab 8 that one piece of thickness is 30～40mm and form the seat structure of support steel bearing beam, by longitudinal two ends of longeron 1 respectively
Being anchored on the first supporting layer 6, between longeron 1, welding beam 2 forms steel bearing beam, is spaced between two blocks of flange plates of longeron 1
Welding polylith stiffener 3, then lays current rail 4 in longeron upper surface, and current rail 4 is fixed on longeron 1 by fastener
The two ends of current rail 4 are connected with the rail of operational railway and do not affect the normal pass of train, on steel bearing beam by upper surface respectively
There is a lot of spaces to be easy to excavate, utilize the space of the space on steel bearing beam and both sides to excavate and remove the second supporting layer 12 and the
The structure of two supporting layer 12 bottoms, the degree of depth of dismounting judges according to practical situation, removes job demand during the point of skylight
Carry out；
4), in the lower section of current rail 4 use early strength concrete to pour and form the second new supporting layer 12,
5), after concrete strength reaches requirement, translation steel bearing beam is to next construction point circulation construction, handling track plates
To the second new supporting layer 12, and on track plates, reinstall rail connection two ends track.
It practice, the present embodiment can be circulated construction according to the length of construction area, so can effectively accelerate
Construction speed, improves efficiency of construction, it is possible to use manpower and material resources sparingly, and reduces construction cost.
The method of circulation construction specifically is: if track the second supporting layer 12 removed is longitudinally split by track is by needing
Dry isometric circulation construction area, each circulation construction area is longitudinally in turn divided into the first isometric circulation construction along track
Unit, the second circulation construction cell and the 3rd circulation construction cell, execute the first circulation in each circulation construction area simultaneously
Work order unit carries out Demolition Construction, after having constructed, carries out the second circulation and execute above translation steel bearing beam to the second circulation construction cell
The construction of work order unit, the most alternately, until all of circulation construction area has been constructed.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (6)
1. a railway ballastless track supporting layer and substructure change method, it is characterised in that: comprise the following steps:
1), the stratum of track both lateral sides is reinforced, by longitudinal the two of the track plates in region to be onstructed during the point of skylight
End-grain cutting is broken；
2), being removed by the track plates of cut-out during the point of skylight, the second supporting layer (12) in region to be onstructed is upper to be set up temporarily
Rail (5) connects operational railway；
3), removing interim rail (5) during the point of skylight, the second supporting layer (12) in region to be onstructed is upper sets up steel bearing beam,
Steel bearing beam is laid current rail (4) and connects operational railway, remove current rail (4) lower section the second supporting layer (12) and
Substructure；
4), the lower section casting concrete at current rail forms new supporting layer and substructure；
5), after concrete strength reaches requirement, translation steel bearing beam is to next construction point circulation construction, and handling track plates is to newly
Supporting layer on, and reinstall on track plates rail connect two ends operational railway.
2. a kind of railway ballastless track supporting layer as claimed in claim 1 and substructure change method, it is characterised in that: step
In rapid 2, the method setting up interim rail is: set up some along track in the second supporting layer (12) upper surface in region to be onstructed
The sleeper (7) that horizontal direction is arranged, at the upper temporary steel rail (5) of laying of sleeper (7), interim rail (5) is fixed on by use fastener
On sleeper (7), adjust interim rail (5) and longitudinal two ends of rail are connected with the rail on operational railway.
3. a kind of railway ballastless track supporting layer as claimed in claim 1 and substructure change method, it is characterised in that: step
In rapid 3, the method setting up steel bearing beam is: the first supporting layer (6) below the operational railway at longitudinal two ends in region to be onstructed
Upper excavation mounting groove, erection support in mounting groove, steel bearing beam is longitudinally set up on two relative bearings suspension along track
The second supporting layer (12) top in region to be onstructed.
4. a kind of railway ballastless track supporting layer as claimed in claim 3 and substructure change method, it is characterised in that:
The installation method of seat is: cut installation on the first supporting layer (6) below the operational railway at longitudinal direction two ends, region to be onstructed
Groove, places a block plate (9) in mounting groove, then lays the rubber slab (9) of one piece of support stringer (1) in the upper end of steel plate (9)
Form the seat structure of support steel bearing beam.
5. a kind of railway ballastless track supporting layer as claimed in claim 1 and substructure change method, it is characterised in that: step
In rapid 3, the laying method of current rail (4) is: two two longerons (1) being made by I-steel longitudinally divided along track
It is not shelved on two relative bearings, is interconnected mutually by the many crossbeams along track lateral arrangement (2) between two longerons (1)
Connect formation steel bearing beam structure, current rail (4) be placed in the upper end of longeron (1), adjust the position of current rail (4) by its with both
There is track to connect, by fastener, current rail (4) is connected to one with longeron (1).
6. a kind of railway ballastless track supporting layer as claimed in claim 1 and substructure change method, it is characterised in that: step
In rapid 5, the method for circulation construction is: the second supporting layer (12) below track remove needs and substructure are indulged by track
To being divided into several isometric circulation construction areas, each circulation construction area is longitudinally in turn divided into isometric the along track
One circulation construction cell, the second circulation construction cell and the 3rd circulation construction cell, simultaneously in each circulation construction area
First circulation construction cell carries out Demolition Construction, and after having constructed, translation steel bearing beam is carried out above the second circulation construction cell
The construction of the second circulation construction cell, the most alternately, until all of circulation construction area has been constructed.
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| CN201610605595.2A CN106192620B (en) | 2016-07-28 | 2016-07-28 | A kind of railway ballastless track supporting layer and substructure change method |
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| CN201610605595.2A CN106192620B (en) | 2016-07-28 | 2016-07-28 | A kind of railway ballastless track supporting layer and substructure change method |
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| CN106192620A true CN106192620A (en) | 2016-12-07 |
| CN106192620B CN106192620B (en) | 2017-12-12 |
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| CN108239896A (en) * | 2018-03-21 | 2018-07-03 | 中铁二十三局集团第四工程有限公司 | Existing railway Disease Treatment of Foundation Base fixed track usage plan constructing structure and construction method |
| CN108425293A (en) * | 2018-05-15 | 2018-08-21 | 中铁第四勘察设计院集团有限公司 | Insert the interim transition structure of causeway trouble in a kind of both wired non-fragment orbit location |
| 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 |
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