CN106192620B - 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 PDF

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Publication number
CN106192620B
CN106192620B CN201610605595.2A CN201610605595A CN106192620B CN 106192620 B CN106192620 B CN 106192620B CN 201610605595 A CN201610605595 A CN 201610605595A CN 106192620 B CN106192620 B CN 106192620B
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China
Prior art keywords
supporting layer
track
rail
construction
railway
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CN106192620A (en
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徐勇
蔡德强
文望青
张勇
康小英
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Publication of CN106192620A publication Critical patent/CN106192620A/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/16Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/40Means or arrangements for temporarily supporting laid tracks, or rails or sleepers in the track
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2204/00Characteristics of the track and its foundations
    • E01B2204/09Ballastless systems

Abstract

The present invention relates to railway ballastless track disease technology for eliminating field, and method is changed in particular to a kind of railway ballastless track supporting layer and substructure.The track plates of cut-out are removed during skylight point, temporary steel rail connection operational railway is set up on region to be onstructed;Interim rail is removed during skylight point, steel bearing beam is set up on region to be onstructed, current rail connection operational railway is laid on steel bearing beam, removes the supporting layer below current rail;During skylight point new supporting layer is formed in the lower section casting concrete of current rail;Cycle alternation is carried out successively, is completed until all supporting layers are changed.By the present invention in that with steel bearing beam by construction area bulit on stilts pass through rail, Along Railway can normal operation, without stopping transport, it ensure that the normal operation of track, the other present invention can thoroughly eliminate the disease problem occurred in track underlying support layer and substructure, track hidden danger is thoroughly eliminated, there is great promotional value.

Description

A kind of railway ballastless track supporting layer and substructure change method
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 with good stability, maintenance workload is small, comfort level is high by bus, track service life is long, The advantages such as structure height is low are widely used in China Railway High-speed, and at the same time high-speed railway requires that track must possess high smooth-going Property is, it is necessary to which sub-rail foundation structure has very high stability.Although built or adopted in the Design of High-speed Railway founded a capital, construction etc. Measure is built with unprecedented high standard, but because China is vast in territory, railway construction condition is sufficiently complex, still has very The multifactor stability that may influence non-fragment orbit, such as construction quality, foundation settlement etc..
The supporting layer and substructure of ballastless track of high-speed railway are the passes for influenceing non-fragment orbit ride comfort and traffic safety Key factor, because of situations such as there may be concrete leakiness, the change of local geology situation in construction, non-fragment orbit is caused to support Layer and substructure do not meet design requirement, may cause fragment-free track slab and supporting layer ftractures, deformation causes track irregularity, Although can be by adjusting fastener, lifting track plates, the measure such as perfusion mortar, dead-end fracture improves ballastless track structure again Unfavoured state, but this simply method for curing the symptoms, not the disease, under the High-speed Train Loads of long term frequent, the bottom do not effected a radical cure Fault of construction is growing day by day, and disease can produce again in the course of time, or even influences traffic safety, therefore for non-fragment orbit disease Really produced, only non-fragment orbit can not be renovated by supporting layer and substructure defect if verified, and needed to support Layer and substructure remove reconstruction simultaneously.For high ferro visitor specially, once maintenance shut-downs, will directly affect the common people and normally go on a journey, make Into bad social influence, in the case where ensureing secured premise carrying out construction merely with Window time is necessary.At present to nothing Tiny fragments of stone, coal, etc. track do not cut off traffic in the case of regulation remain the supporting layer that in many technical barriers, is pointed to below non-fragment orbit and under Portion's structure changed under traffic-operating period it is even more difficult, therefore seek it is a kind of do not cut off traffic, securely and reliably, economical close Reason, easy for construction, adaptable ballastless track of high-speed railway supporting layer and substructure to change method imperative.
The content of the invention
Present invention aim to the prior art for solving to mention in above-mentioned background technology non-fragment orbit supporting layer And substructure the problem of can not being repaired in the case where not influenceing railway operation to it when going wrong, there is provided 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, and its feature exists In:Comprise the following steps:
1), the stratum of track both lateral sides is reinforced, by the vertical of the track plates in region to be onstructed during skylight point Cut off to both ends;
2), the track plates of cut-out are removed during skylight point, set up on second supporting layer in region to be onstructed interim Rail connects operational railway;
3) interim rail, is removed during skylight point, steel bearing beam is set up on second supporting layer in region to be onstructed, in steel Current rail connection operational railway is laid on bearing beam, removes the second supporting layer and its substructure below current rail;
4) new supporting layer and substructure, are formed in the lower section casting concrete of current rail;
5), after concrete strength reaches requirement, translation steel bearing beam to next construction dot cycle construction, handling track plates To new supporting layer, and the operational railway that rail connects both ends is reinstalled on track plates.
In further step 2, the method for setting up interim rail is:The second supporting layer upper end face frame in region to be onstructed If some sleepers along track horizontal direction, temporary steel rail is laid on sleeper, interim rail is fixed on pillow using fastener On wood, adjust interim rail and longitudinal both ends of rail are connected with the rail on operational railway.
In further step 3, the method for setting up steel bearing beam is:Under the operational railway at longitudinal both ends in region to be onstructed Mounting groove is excavated on first supporting layer of side, the erection support in mounting groove, 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 region longitudinal direction to be onstructed both ends Mounting groove is cut on layer, one block of steel plate is placed in mounting groove, then the rubber of one piece of support stringer is laid in the upper end of steel plate Seat structure of the plate shape into support steel bearing beam.
In further step 3, the laying method of current rail is:Two longerons that two are made by I-steel Longitudinally it is respectively rested on along track on two relative bearings, passes through the more crossbeams along track lateral arrangement between two longerons Be interconnected to form steel bearing beam structure, current rail be placed in the upper end of longeron, adjust the position of current rail by its with it is existing Track is connected, and current rail is connected to one with longeron by fastener.
In further step 5, the method for circulating construction is:To need the second supporting layer below the track removed and under It is several isometric circulation construction areas that portion's structure is longitudinally split by track, and each circulation construction area is longitudinal successively along track Isometric first circulation construction cell, second circulation construction cell and the 3rd circulation construction cell are divided into, while is followed to each First circulation construction cell in ring construction area carries out Demolition Construction, and after the completion of construction, translation steel bearing beam to second circulation is applied Work order member top carries out the construction of second circulation construction cell, successively alternately, until all circulation construction areas are constructed Complete.
In further step 1, the method for stratum consolidation is:If the inserting piling 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 the inserting piling 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:1st, non-fragment orbit supporting layer and substructure are entered in the case of not disrupted circuit operation Row changes, and driving is influenceed smaller.
2nd, the disease management that the supporting layer for non-fragment orbit and substructure occur can use, applied widely, adopt With steel bearing beam section construction, can quickly renovate the disease region of longer-range, using the supporting layer in the aerial construction of steel bearing beam and Substructure, by changeing substructure, the mass defect problem of substructure can thoroughly be administered, avoid generation two Secondary disease.
Every circuit is independently reinforced using a set of steel bearing beam system when the 3rd, constructing, therefore construction is not influenceed by line spacing, Due to every line can independent construction, therefore can according to circuit practical operation situation carry out construction organization, it is easy for construction flexibly, construction stream Aquation operation, no special construction requirement, difficulty of construction are low.
4th, set a set of steel bearing beam to change supporting layer and substructure under every circuit, multiple regions can be carried out simultaneously Construction, steel bearing beam can fall use, accelerate construction speed, construction area be divided into the circulation construction cell of multiple small sections, Not only the segmentation with track structure matches, while smaller to structural perturbation, securely and reliably.
5th, carry out changeing supporting layer and substructure paragraph by paragraph using small span steel bearing beam, defective substructure can obtain Thoroughly renovate, structure and track structure can recover to design point under rail.
By the present invention in that with steel bearing beam by construction area bulit on stilts pass through rail, Along Railway can normal operation, no With stoppage in transit, the normal operation of track is ensure that, the present invention can thoroughly eliminate track underlying support layer and substructure in addition The middle disease problem occurred, track hidden danger is thoroughly eliminated, there is great promotional value.
Brief description of the drawings
Fig. 1:The steel bearing beam mounting structure schematic top plan view of the present invention;
Fig. 2:The steel bearing beam mounting structure schematic longitudinal section of the present invention;
Fig. 3:The longeron of the present invention and the mounting structure schematic diagram of bearing;
Fig. 4:The steel bearing beam mounting structure schematic cross-sectional view of the present invention;
Fig. 5:The mounting structure schematic diagram of the interim rail of the present invention;
Wherein:1-longeron;2-crossbeam;3-stiffener;4-pass through rail;5-interim rail;6-the first supporting layer; 7-sleeper;8-rubber slab;9-steel plate;10-riser;11-transverse slat;12-the second supporting layer.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1~5, the method that the present embodiment changes supporting layer and substructure needs to remove to be set up in using steel bearing beam Supporting construction of the top of second supporting layer 12 (shown in the dotted line frame in such as Fig. 1) of construction as current rail 4, ensures rail The normal operation of road circuit.The structure of steel bearing beam is as shown in figure 1, including two longerons 1 being longitudinally arranged along track, longeron 1 is I-beam structure, the web of longeron 1 are arranged vertically.Connected and formed by the crossbeam 2 along track lateral arrangement between two longerons 1 Overall structure, crossbeam 2 generally use, two pieces of channel-section steel assembly are made, and the U mouths of two blocks of channel-section steels, which are supported or opposed, to be bolted to connection For overall structure, the both ends of crossbeam 2 are respectively protruding into the frame structure that stabilization is formed between two blocks of flange plates of two longerons 1, Ensure the spacing between longeron.
In order to further enhance the ability of the current rail 4 of the support of longeron 1, the present embodiment is also in two blocks of flange plates of longeron 1 Between be welded with the stiffener 3 arranged vertically, the vertical enabling capabilities of whole longeron 1 are enhanced by stiffener 3, are avoided Longeron 1 is damaged by pressure during train passage.Crossbeam 2 is channel-section steel structure, and stiffener 3 is located at the transverse ends of crossbeam 2, put more energy into respectively Plate 3 is deep into the both ends that crossbeam 2 is bolted 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 the other positions of longeron 1, but need to evade fastener, it is impossible to Fastener produces interference.
The both ends of longeron 1 are separately fixed at below the operational railway at longitudinal both ends of the second supporting layer 12 to be removed On one supporting layer 6, bearing is installed on first supporting layer 6 at both ends, as shown in figures 2-3, the present embodiment is indulged in region to be onstructed The deep mounting grooves of 15~20mm are cut on to the first supporting layer 6 below the operational railway at both ends, one is placed in mounting groove Block thickness is 10~20mm steel plate 9, then lays the rubber slab 8 that one piece of thickness is 30~40mm in the upper end of steel plate 9 and form branch Hold the seat structure of steel bearing beam.
Longeron 1 is provided at both ends with stopping means, and the stopping means of the present embodiment includes being located at the end cross both sides of longeron 1 Two blocks of angle steel, angle steel includes the riser 10 and be anchored at by bolt below operational railway first positioned at the sidepiece of longeron 1 The transverse slat 11 on layer 6 is supportted, transverse slat 11 is fixed on the steel angle structure of the lower end formation L-type of riser 10, and longeron 1 is located at two pieces of risers 10 Between horizontal rock avoided by the position-limiting action of riser 10.
The both ends of longeron 1 are respectively rested on the rubber slab 8 on first supporting layer 6 at longitudinal both ends in region to be onstructed, Set rubber slab 8 farthest to form cushioning effect, reduce the rigid collision between each part, avoid part Damage.The first supporting layer 6 that longitudinal both ends of longeron 1 pass through the spacing longitudinal both ends for being fixed on region to be onstructed of angle steel and bolt On.
Because the track of high-speed railway is all long-play, the construction period of the present embodiment can only be in the day of every track Window point is constructed, and some construction procedures can not be fully finished in a skylight point, it is necessary to is carried out in several skylight points.Track Plate takes longer, it is necessary to which the time of one or more skylight points is carried out, therefore is cut removing during cutting and removal Cut after the track plates of completion, it is necessary to install interim rail 5.As shown in figure 5, the installation method of interim rail 5 is:Directly waiting to apply Lay railway sleepers 7 on second supporting layer 12 in work area domain, sleeper 7 is laterally laid according to track, then temporary steel rail is laid on sleeper 7 5, the both ends of interim rail 5 are connected with operational railway respectively, to ensure the normal pass of track.
Specifically construction method is:1st, the stratum of track both lateral sides to be reinforced, the reinforcement means of the present embodiment is, The inserting piling anchor pole directly on the soil layer of track both lateral sides, the soil layer of region both lateral sides to be onstructed is reinforced, avoid removing branch During supportting layer, there is the phenomenon to collapse in the soil layer of both sides, after the completion of soil layer is reinforced, by the vertical of the track plates in region to be onstructed Cut off to both ends, soil layer is reinforced and the cutting of track plates can all influence the normal operation of train, it is therefore desirable in the progress of skylight point;
2), during skylight point, the track plates of cut-out is removed using hanging device, set up on region to be onstructed interim Rail 5 connects operational railway, and the sleeper 7 of some direction across bridge is directly set up above the second supporting layer 12 for removing track plates, Temporary steel rail 5 is laid on sleeper 7 again, the both ends of rail are connected with the rail on operational railway respectively, so can not shadow The normal pass of train is rung, the circuit speed of service of interim rail 5 is no more than 45KM/h;
3), during skylight point, interim rail 5 and sleeper 7 are removed, is opened on the first supporting layer 6 below operational railway The deep mounting grooves of 15~20mm are dug, the steel plate 9 that one piece of thickness is 10~20mm is placed in mounting groove, then in the upper end of steel plate 9 One piece of thickness of laying is that 30~40mm rubber slab 8 forms the seat structure of support steel bearing beam, and longitudinal both ends of longeron 1 are distinguished It is anchored on the first supporting layer 6, welding beam 2 forms steel bearing beam between longeron 1, is spaced between two blocks of flange plates of longeron 1 Polylith stiffener 3 is welded, current rail 4 is then laid in longeron upper surface, current rail 4 is fixed on longeron 1 by fastener Upper surface, the both ends of current rail 4 is connected with the rail of operational railway respectively the normal pass for not influenceing train, on steel bearing beam There are many spaces to be easy to excavate, excavated using the space of the space on steel bearing beam and both sides and remove the second supporting layer 12 and the The structure of the bottom of two supporting layer 12, the depth of dismounting are judged according to actual conditions, remove need of work during skylight point Carry out;
4), pour to form the second new supporting layer 12 using early strength concrete in the lower section of current rail 4,
5), after concrete strength reaches requirement, translation steel bearing beam to next construction dot cycle construction, handling track plates To the second new supporting layer 12, and rail connection both ends track is reinstalled on track plates.
In fact, the present embodiment can carry out circulation construction according to the length of construction area, so can effectively accelerate Construction speed, efficiency of construction is improved, can be used manpower and material resources sparingly, reduce construction cost.
Specifically the method for circulation construction is:It is if the second supporting layer of track 12 that needs are removed is longitudinally split by track Dry isometric circulation construction area, each construction area that circulates longitudinally are in turn divided into isometric first circulation construction along track Unit, second circulation construction cell and the 3rd circulation construction cell, while the first circulation in each circulation construction area is applied Work order member carries out Demolition Construction, and carrying out second circulation after the completion of construction, above translation steel bearing beam to second circulation construction cell applies The construction of work order member, successively alternately, until all circulation construction area constructions are completed.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent defines.

Claims (6)

1. a kind of 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 the longitudinal direction two of the track plates in region to be onstructed during skylight point End cut-out;
2), the track plates of cut-out are removed during skylight point, set up on second supporting layer (12) in region to be onstructed interim Rail (5) connects operational railway;
3) interim rail (5), is removed during skylight point, steel bearing beam is set up on second supporting layer (12) in region to be onstructed, Current rail (4) connection operational railway is laid on steel bearing beam, remove the second supporting layer (12) below current rail (4) and its Substructure;
4) new supporting layer and substructure, are formed in the lower section casting concrete of current rail;
5), after concrete strength reaches requirement, translation steel bearing beam is to next construction dot cycle construction, and handling track plates are to new Supporting layer on, and reinstall on track plates the operational railway at rail connection both ends.
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 for setting up interim rail is:Some are set up along track in the second supporting layer (12) upper surface in region to be onstructed The sleeper (7) of horizontal direction arrangement, temporary steel rail (5) is laid on sleeper (7), is fixed on interim rail (5) using fastener On sleeper (7), adjust interim rail (5) and longitudinal both 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 for setting up steel bearing beam is:The first supporting layer (6) below the operational railway at longitudinal both ends in region to be onstructed Upper excavation mounting groove, the erection support in mounting groove, steel bearing beam is longitudinally set up on two relative bearings along track and suspended Above second supporting layer (12) 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:Branch Seat installation method be:Installation is cut on the first supporting layer (6) below the operational railway at region longitudinal direction to be onstructed both ends Groove, one piece of steel plate (9) is placed in mounting groove, then the rubber slab (8) of one piece of support stringer (1) is laid 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 are longitudinally divided by two longerons (1) that I-steel is made along track It is not shelved on two relative bearings, is mutually interconnected by the more crossbeams (2) along track lateral arrangement between two longerons (1) Connect to form 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 connection, current rail (4) and longeron (1) are connected to one by fastener.
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 circulating construction is:The second supporting layer (12) below the track removed and substructure will be needed to be indulged by track To being divided into several isometric circulation construction areas, each construction area that circulates longitudinally is in turn divided into isometric the along track One circulation construction cell, second circulation construction cell and the 3rd circulation construction cell, while in each circulation construction area First circulation construction cell carries out Demolition Construction, after the completion of construction, is carried out above translation steel bearing beam to second circulation construction cell The construction of second circulation construction cell, successively alternately, until all circulation construction area constructions are completed.
CN201610605595.2A 2016-07-28 2016-07-28 A kind of railway ballastless track supporting layer and substructure change method Active CN106192620B (en)

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AT413552B (en) * 2004-04-08 2006-03-15 Porr Technobau Und Umwelt Ag Scottless construction for rail-linked transport
CN201505976U (en) * 2009-10-23 2010-06-16 河北众鑫源桥隧设备制造有限公司 Translational ballastless track plate mold
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