CN103410062B - The method of single-track railway tunnel bracket type rail method construction solid concrete roabed - Google Patents
The method of single-track railway tunnel bracket type rail method construction solid concrete roabed Download PDFInfo
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- CN103410062B CN103410062B CN201310374030.4A CN201310374030A CN103410062B CN 103410062 B CN103410062 B CN 103410062B CN 201310374030 A CN201310374030 A CN 201310374030A CN 103410062 B CN103410062 B CN 103410062B
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Abstract
The invention belongs to construction of railway project field, specifically in a kind of single-track railway tunnel, adopt bracket type rail method construction solid concrete roabed method; Comprise settlement observation, plane, vertical control survey and cleaning substrate top surface, calibration position; Also comprise laying bottom layer of the reinforcing steel, place sleeper, first section of road bed board construction, transport, steel rail laying, install transverse expansion joint plank, fixing rail, sleeper, track coarse adjustment, colligation top layer reinforcing bar, insulating properties are tested, track accurate adjustment, concreting and maintenance, post-processed.Which overcome single-track railway tunnel construction space narrow, motor vehicles and machines pass through not convenient, disturb the objective problem such as large between each procedures environment; Improve construction continuous productive process efficiency; Ensure that construction safety, reduce risk, accelerate construction speed; Prevent straddle truck load from transporting, alleviate the pressure to cover plate; Effectively prevent the destruction to ditch sidewall and cover plate.
Description
Technical field
The present invention relates to a kind of tunnel Monolithic Track Bed Construction method, specifically adopt bracket type rail method construction solid concrete roabed method in a kind of single-track railway tunnel, belong to construction of railway project field.
Background technology
That builds along with high-speed railway, Line for Passenger Transportation etc. greatly develops, and non-fragment orbit becomes a trend of Development of High Speed Railway.Solid concrete roabed is the basis of non-fragment orbit, its construction method is the critical process of Construction of Ballastless Track, current construction solid concrete roabed mainly contains three kinds of methods: track stack arrangement, course tuning machine and the instrument section of track method that both combine, several technology extensive use, all comparatively ripe.
In at present design or the non-fragment orbit railway runed, be mostly two-wire, construct in tunnel solid concrete roabed time have larger space, can pass through another line transporting material, facility laying, TD etc. are not Technology Difficulties.Single-track railway tunnel Monolithic Track Bed Construction all adopts track stack arrangement at present, in single-track railway tunnel, the arrangement linking of working procedure is greatly affected, construction equipment is heavy, cost unit price is high, material facility can only be placed in refuge chamber or on ditch cable trench cover plate, not only have impact on working space, and destroy comparatively serious to ditch sidewall, ditch cover plate and cable trough cover boards.Therefore select rational construction technology, prioritization scheme and procedure arrangement, TD etc. are that single track tunnel overall railway roadbed is constructed the most key technical essential and a large core technical barrier.Suitable construction technology is adopted also to be the important leverage realizing speciality single-track railway tunnel solid concrete roabed fast and safe construction.
Summary of the invention
Mutually disturb for solid concrete roabed narrow space of constructing in current single-track railway tunnel, every operation, ditch sidewall, ditch cover plate, cable trough cover boards destroy the problems such as more, the object of this invention is to provide a kind of easy operation, production efficiency is high, safety is guaranteed, construction cost is low, method that single-track railway tunnel bracket type rail method that tunnel facility exempts from damage constructs solid concrete roabed.
For achieving the above object, the technical scheme that the present invention takes is as follows: a kind of method of single-track railway tunnel bracket type rail method construction solid concrete roabed, comprises settlement observation, plane, vertical control survey and cleaning substrate top surface, calibration position; It is characterized in that: also comprise laying bottom layer of the reinforcing steel, place sleeper, first section of road bed board construction, transport, steel rail laying, install transverse expansion joint plank, fixing rail, sleeper, track coarse adjustment, colligation top layer reinforcing bar, insulating properties are tested, track accurate adjustment, concreting and maintenance, post-processed; Concrete grammar is as follows:
A. settlement observation
Settlement observation is carried out to tunnel basis, and the assessment of system is done to tunnel basis sedimentation;
B. plane and vertical control survey
The control survey of CP II, CP III is carried out after tunnel ditch cable channel completes;
C. substrate surface, calibration position is cleared up;
D. bottom layer of the reinforcing steel is laid
E. sleeper is placed
; The bottom layer of the reinforcing steel mesh sheet of first road bed board element length places sleeper; The bottom layer of the reinforcing steel mesh sheet of colligation second road bed board element length again, then sleeper is placed in the bottom layer of the reinforcing steel mesh sheet of second road bed board element length; Incremental with this;
. first section of road bed board
Adopt fork truck that rail is transported to the in-cavity construction scope of operation from hole, be placed on and lay on the both sides ditch cable trench of cover plate, manually rail is installed, form track framed bent, and concreting, make first section of road bed board; All the other road bed board carry out according to subsequent step;
G. transport, steel rail laying
First the walking of 1# straddle truck is adopted to build between ditch sidewall and the horizontal termination of sleeper and reached on the road bed board of intensity; Rail is sling by 1# straddle truck, is positioned on simple and easy rail transport small car; Rail transport small car utilizes on the road bed board section of the dismounting rail of having built, and the reach of rail limit is removed on limit, by rail transporting to the solid concrete roabed concrete section of building and the solid concrete roabed concrete section of not building two ends junction; Then utilize 2# straddle truck to be sling by rail, put on rubber-tyred rail transporting dolly; In-orbit 3cm plank longitudinally laid by bolster intermediate truss reinforcing bar, manually push away rubber-tyred rail transporting dolly by the paragraph of rail transporting to the good sleeper of cloth; Lift by crane rail by 3# straddle truck again, rail is installed, the forming unit section of track by cloth pillow order;
H. transverse expansion joint plank is installed
As shrinkage joint plank;
I. fix rail, sleeper, install that rail is vertical, transverse adjustment bracket and rail distance rod
Vertical screw regulator bracket is installed on left and right two one steel rail foots in symmetry, and vertical screw regulator bracket is fixed on two sleepers centre positions; Install a pair between each road bed board unit first sleepers, afterwards, install a pair according to curved section interval 2 sleepers, straightway interval 3 sleepers; Adopt rail bracket to be fixed on rail foot transverse adjustment one end, one end adopts U-shaped notch to be fixed on the sidewall of ditch, and each road bed board is equidistantly symmetrical installs 4 groups; Adopt rail bracket to be fixed on rail foot rail distance rod both sides, the middle threaded screw rod that adopts connects, and the installation quantity of rail distance rod is identical with transverse adjustment quantity, and is roughly located on same cross section with transverse adjustment;
J. track coarse adjustment
Manually coarse adjustment is completed by rail jack, plumb bob and track gauge; First lift the section of track of a rail unit and sleeper composition with rail jack, according to the line of ink marker ejected and the base elevation of preliminary survey, use artificial plumb bob, track gauge to adjust the absolute altitude of the section of track and gauge to design attitude; Install vertical screw regulator, bottom vertical screw rod, substrate top surface places steel plate pad, and steel plate pad diameter is greater than the vertical screw diameter of vertical screw regulator, prevents the vertical screw rod generation sidesway of vertical screw regulator; After determining gauge according to track gauge adjustment, rail distance rod is screwed locking; Adopt transverse screw adjuster to carry out lateral adjustments according to the tunnel center line ejected, undertaken regulating and locking by left and right transverse adjustment screw rod; Adopt railways splint to connect between rail after coarse adjustment completes, form overall track framed bent;
K. colligation top layer reinforcing bar, insulating properties test;
L. track accurate adjustment
Track accurate adjustment operation detects dolly with the accurate adjustment of non-fragment orbit specialty and measures operation instruction, is realized the accurate location of track framed bent by manual adjustment threaded screw rod;
M. concreting and maintenance
Adopt delivery pump concreting, build rear timely covering watering maintenance;
N. post-processed
Pouring concrete takes out vertical track bracket studdle after 6 hours, and is separated with rail by pallet.
12.5m/ root standard P 60 rail used in Monolithic Track Bed Construction step g of the present invention is as tool track, for guaranteeing the track supporting facility of circuit precision when construction solid concrete roabed and later stage lay rectangular rail.Constructed after one section of solid concrete roabed, rail is had bad luck to non-construction site, repeats above-mentioned steps and to construct follow-up solid concrete roabed.
The present invention has great popularizing value in non-fragment orbit single-track railway tunnel engineering construction field: adopt bracket type rail method to use in single-track railway tunnel, compare with traditional section of track method, main advantage is as follows:
A. overcome single-track railway tunnel construction space narrow, motor vehicles and machines pass through not convenient, disturb the objective problem such as large between each procedures environment;
B. adopt the construction of bracket type rail method to be conducive to increasing the circulation timei between operation, the especially track coarse adjustment time, improve construction continuous productive process efficiency, shorten the construction period;
C. adopt homemade Simple gantry crane and rail transporting dolly, can effectively utilize tunnel existing space, do not limit by narrow space completely; Overcome that the working procedure caused because single-track tunnel cross-section is little disturbs mutually, facility material destroys the problems such as more without stacking place, ditch sidewall, cover plate, ensure that construction safety, reduce risk, accelerate construction speed;
D. sleeper directly from hole by forklift transport, be not placed on ditch lid plate; Straddle truck is the lifting rail when dismantling and install only, not as the instrument of transport rail, prevents straddle truck load to transport, alleviates the pressure to cover plate; Above two measures effectively prevent the destruction to ditch sidewall and cover plate;
E. bracket type rail method construction solid concrete roabed equipment is simple, manually very easily operates, reduces construction cost, reduce construction safety risk.
Detailed description of the invention
The method of single-track railway tunnel bracket type rail method construction solid concrete roabed, comprises the steps:
A. settlement observation
Settlement observation is carried out to tunnel basis, and the assessment of system is done to tunnel basis sedimentation;
B. plane and vertical control survey
The control survey of CP II, CP III is carried out after tunnel ditch cable channel completes;
C. substrate surface, calibration position is cleared up
Clean the substrate surface scum silica frost, dust and the foreign material that are about to the section of performing, and rinse with giant; Measurement line center line, sideline, and circuit king-pile, skirt piles are set, straightway 10 meters, curved section 5 meters; Again according to circuit king-pile, the skirt piles control point bullet line of ink marker of each road bed board element length and setting, demarcate each road bed board sleeper, initial approximate location that reinforcing bar is put;
Action, the working method of above-mentioned steps a, b, c are same as the prior art.
D. bottom layer of the reinforcing steel is laid
Outside hole, by designing requirement, steel bar meter is become semiproduct, adopt forklift transport on the cover plate of ditch, both sides, scope of operation place, place reinforcing bar by the road bed board cell position that surveying and locating indicates in advance; On longitudinal reinforcement, according to transverse reinforcement spacing, cross edge insulator is installed, artificial colligation bottom transverse direction and longitudinal reinforcement, forms the bottom layer of the reinforcing steel mesh sheet of first road bed board element length;
E. sleeper is placed
Adopt fork truck by sleeper by being transported to the scope of operation in hole outside hole, unload pillow by the road bed board cell position hand fit that surveying and locating indicates in advance, load fortune puts assigned address, two pieces of wooden units determining the spacing of two sleepers blocks are adopted to be stuck between sleeper to determine the position of sleeper in circuit longitudinal direction, afterwards according to the line of ink marker longitudinally ejected, coarse adjustment lateral attitude; The bottom layer of the reinforcing steel mesh sheet of first road bed board element length places sleeper; The bottom layer of the reinforcing steel mesh sheet of colligation second road bed board element length again, then sleeper is placed in the bottom layer of the reinforcing steel mesh sheet of second road bed board element length; Incremental with this;
Be divided into some sections by bottom layer of the reinforcing steel mesh sheet, a road bed board element length is as one section; After steps d completes, define the bottom layer of the reinforcing steel mesh sheet of first road bed board element length, on this bottom layer of the reinforcing steel mesh sheet, place sleeper; Sleeper is after this road bed board unit has been placed, then the bottom layer of the reinforcing steel mesh sheet of the next road bed board element length of colligation, then places sleeper; Placing sleeper is also as one section using a road bed board element length.
F. first section of road bed board construction
Adopt fork truck that rail is transported to the in-cavity construction scope of operation from hole, be placed on and lay on the both sides ditch cable trench of cover plate, manually rail is installed, form track framed bent, and concreting, make first section of road bed board; All the other road bed board carry out according to subsequent step;
Solid concrete roabed in tunnel is divided into two parts, is namely divided into first section of road bed board and other road bed board; First make first section of road bed board, then make other road bed board again, complete the transport routes of first section of road bed board as lower step of construction; After having constructed, first section of road bed board end docks with the head end of other road bed board, forms a construction overall;
G. transport, steel rail laying
Rail adopts 12.5m/ root standard P 60 rail; Rail is had bad luck after sleeper has been laid; Have bad luck and will build the rail transporting of complete body railway roadbed concrete segment to the solid concrete roabed concrete section of not building exactly;
This step need use three straddle trucks, exercises respective function; The walking of 1# straddle truck is adopted to build between ditch sidewall and the horizontal termination of sleeper and reached on the road bed board of intensity; Rail is sling by 1# straddle truck, is positioned on simple and easy rail transport small car; Rail transport small car utilizes the road bed board section of the dismounting track of having built to carry out rail transporting, according to rail dismounting reach transport rail, by rail transporting to the solid concrete roabed concrete section of building and the solid concrete roabed concrete section of not building termination; Utilize 2# straddle truck to be sling by rail, put on rubber-tyred rail transporting dolly; In-orbit 3cm plank longitudinally laid by bolster intermediate truss reinforcing bar, manually push away rubber-tyred rail transporting dolly by the paragraph of rail transporting to the good sleeper of cloth; Lift by crane rail by 3# straddle truck, rail is installed, the forming unit section of track by cloth pillow order;
H. transverse expansion joint plank is installed
Underlining goes out constuction joint position, and installs horizontal pitch leaching plank in constuction joint position as shrinkage joint plank;
I. fix rail, sleeper, install that rail is vertical, transverse adjustment bracket and rail distance rod
Vertical screw regulator bracket is installed on left and right two one steel rail foots in symmetry, and vertical screw regulator bracket is fixed on two sleepers centre positions; Install a pair between each road bed board unit first sleepers, afterwards, install a pair according to curved section interval 2 sleepers, straightway interval 3 sleepers; Adopt rail bracket to be fixed on rail foot transverse adjustment one end, one end adopts U-shaped notch to be fixed on the sidewall of ditch, and each road bed board is equidistantly symmetrical installs 4 groups; Adopt rail bracket to be fixed on rail foot rail distance rod both sides, the middle threaded screw rod that adopts connects, and the installation quantity of rail distance rod is identical with transverse adjustment quantity, and is roughly located on same cross section with transverse adjustment;
J. track coarse adjustment
Manually coarse adjustment is completed by rail jack, plumb bob and track gauge; First lift the section of track of a rail unit and sleeper composition with rail jack, according to the line of ink marker ejected and the base elevation of preliminary survey, use artificial plumb bob, track gauge to adjust the absolute altitude of the section of track and gauge to design attitude; Install vertical screw regulator, bottom vertical screw rod, substrate top surface places steel plate pad, and steel plate pad diameter is greater than the vertical screw diameter of vertical screw regulator, prevents the vertical screw rod generation sidesway of vertical screw regulator; After determining gauge according to track gauge adjustment, rail distance rod is screwed locking; Adopt transverse screw adjuster to carry out lateral adjustments according to the tunnel center line ejected, undertaken regulating and locking by left and right transverse adjustment screw rod; Adopt railways splint to connect between rail after coarse adjustment completes, form overall track framed bent;
K. colligation top layer reinforcing bar, insulating properties test
Lay and colligation top reinforcement, meet track circuit transmission requirement;
L. track accurate adjustment
With non-fragment orbit specialty accurate adjustment detection dolly measurement operation instruction for foundation carries out track accurate adjustment, realized the accurate location of track framed bent by manual adjustment threaded screw rod;
M. concreting and maintenance
Adopt delivery pump concreting, build rear timely covering watering maintenance;
N. post-processed
Pouring concrete takes out vertical track bracket studdle after 6 hours, must be rotated counterclockwise screw rod, then be separated with rail by pallet, after cleaning one by one, oiling maintenance, concentrates and is stored in workbasket, to use next time.
Claims (1)
1. a method for single-track railway tunnel bracket type rail method construction solid concrete roabed, comprises settlement observation, plane, vertical control survey and cleaning substrate top surface, calibration position; It is characterized in that: also comprise laying bottom layer of the reinforcing steel, place sleeper, first section of road bed board construction, transport, steel rail laying, install transverse expansion joint plank, fixing rail, sleeper, track coarse adjustment, colligation top layer reinforcing bar, insulating properties are tested, track accurate adjustment, concreting and maintenance, post-processed; Concrete steps are as follows:
A. settlement observation
Settlement observation is carried out to tunnel basis, and the assessment of system is done to tunnel basis sedimentation;
B. plane and vertical control survey
The control survey of CP II, CP III is carried out after tunnel ditch cable channel completes;
C. substrate surface, calibration position is cleared up
Clean the substrate surface scum silica frost, dust and the foreign material that are about to the section of performing, and rinse with giant; Measurement line center line, sideline, and circuit king-pile, skirt piles are set, then according to circuit king-pile, the skirt piles control point bullet line of ink marker of each road bed board element length and setting, demarcate each road bed board sleeper, initial approximate location that reinforcing bar is put;
D. bottom layer of the reinforcing steel is laid
Outside hole, by designing requirement, steel bar meter is become semiproduct, adopt forklift transport on the cover plate of ditch, both sides, scope of operation place, place reinforcing bar by the road bed board cell position that surveying and locating indicates in advance; Longitudinal reinforcement installs cross edge insulator according to transverse reinforcement spacing, artificial colligation bottom transverse direction and longitudinal reinforcement, form the bottom layer of the reinforcing steel mesh sheet of first road bed board element length;
E. sleeper is placed
Adopt fork truck by sleeper by being transported to the scope of operation in hole outside hole, the road bed board cell position indicated by surveying and locating in advance, hand fit unloads pillow, load fortune puts assigned address, two pieces of wooden units determining the spacing of two sleepers blocks are adopted to be stuck between sleeper to determine the position of sleeper in circuit longitudinal direction, afterwards according to the line of ink marker longitudinally ejected, coarse adjustment lateral attitude; The bottom layer of the reinforcing steel mesh sheet of first road bed board element length places sleeper; The bottom layer of the reinforcing steel mesh sheet of colligation second road bed board element length again, then sleeper is placed in the bottom layer of the reinforcing steel mesh sheet of second road bed board element length; Incremental with this;
F. first section of road bed board
Adopt fork truck that rail is transported to the in-cavity construction scope of operation from hole, be placed on and lay on the both sides ditch cable trench of cover plate, manually rail is installed, form track framed bent, and concreting, make first section of road bed board; All the other road bed board carry out according to subsequent step;
G. transport, steel rail laying
Rail adopts 12.5m/ root standard P 60 rail; Rail is had bad luck after sleeper has been laid; First the walking of 1# straddle truck is adopted to build between ditch sidewall and the horizontal termination of sleeper and reached on the road bed board of intensity; Rail is sling by 1# straddle truck, is positioned on simple and easy rail transport small car; Rail transport small car utilizes the road bed board section of the dismounting rail of having built, and the reach of rail limit is removed on limit, by rail transporting to the solid concrete roabed concrete section of building and the solid concrete roabed concrete section of not building two ends junction; Then utilize 2# straddle truck to be sling by rail, put on rubber-tyred rail transporting dolly; In-orbit 3cm plank longitudinally laid by bolster intermediate truss reinforcing bar, manually push away rubber-tyred rail transporting dolly by the paragraph of rail transporting to the good sleeper of cloth; Lift by crane rail by 3# straddle truck again, rail is installed, the forming unit section of track by cloth pillow order;
H. transverse expansion joint plank is installed
Underlining goes out constuction joint position, and installs horizontal pitch leaching plank in constuction joint position as shrinkage joint plank;
I. fix rail, sleeper, install that rail is vertical, transverse adjustment bracket and rail distance rod
Vertical screw regulator bracket symmetry is arranged on left and right two one steel rail foots, and vertical screw regulator bracket is fixed on two sleepers centre positions; Install a pair between each road bed board unit first sleepers, afterwards, install a pair according to curved section interval 2 sleepers, straightway interval 3 sleepers; Adopt rail bracket to be fixed on rail foot transverse adjustment one end, one end adopts U-shaped notch to be fixed on the sidewall of ditch, and each road bed board is equidistantly symmetrical installs 4 groups; Adopt rail bracket to be fixed on rail foot rail distance rod both sides, the middle threaded screw rod that adopts connects, and the installation quantity of rail distance rod is identical with transverse adjustment quantity, and is roughly positioned on same cross section with transverse adjustment;
J. track coarse adjustment
Manually coarse adjustment is completed by rail jack, plumb bob and track gauge; First lift the section of track of a rail unit and sleeper composition with rail jack, according to the line of ink marker ejected and the base elevation of preliminary survey, use artificial plumb bob, track gauge to adjust the absolute altitude of the section of track and gauge to design attitude; Install vertical screw regulator, bottom vertical screw rod, substrate top surface places steel plate pad, and steel plate pad diameter is greater than the vertical screw diameter of vertical screw regulator, prevents the vertical screw rod generation sidesway of vertical screw regulator; After determining gauge according to track gauge adjustment, rail distance rod is screwed locking; Adopt transverse screw adjuster to carry out lateral adjustments according to the tunnel center line ejected, undertaken regulating and locking by left and right transverse adjustment screw rod; Adopt railways splint to connect between rail after coarse adjustment completes, form overall track framed bent;
K. colligation top layer reinforcing bar, insulating properties test
Lay and colligation top reinforcement, meet track circuit transmission requirement;
L. track accurate adjustment
Track accurate adjustment operation detects dolly with the accurate adjustment of non-fragment orbit specialty and measures operation instruction, is realized the accurate location of track framed bent by manual adjustment threaded screw rod;
M. concreting and maintenance
Adopt delivery pump concreting, build rear timely covering watering maintenance;
N. post-processed
Pouring concrete takes out vertical track bracket studdle after 6 hours, and is separated with rail by pallet.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105839475B (en) * | 2016-03-28 | 2018-05-18 | 中铁二十二局集团第一工程有限公司 | A kind of Monolithic Track Bed Construction method |
| CN105863665B (en) * | 2016-04-07 | 2018-05-08 | 石河子大学 | A kind of processing method of stone matter tunnel inverted arch scum silica frost |
| CN106871879A (en) * | 2017-01-03 | 2017-06-20 | 中国十七冶集团有限公司 | A kind of road surface Side Pile Lofting method |
| CN110541332A (en) * | 2019-08-14 | 2019-12-06 | 中铁六局集团有限公司 | construction method of railway integral ballast bed in narrow tunnel |
| CN111395055A (en) * | 2020-03-16 | 2020-07-10 | 中铁上海工程局集团有限公司 | Construction method of track integral ballast bed |
| CN112900161A (en) * | 2021-01-27 | 2021-06-04 | 中铁十二局集团有限公司 | Construction method of integral track bed of boot-type elastic supporting block of tunnel |
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| DE10114087B4 (en) * | 2001-03-22 | 2004-09-02 | Leonhard Weiss Gmbh & Co. | Device for laying Y-shaped sleepers on a track bed |
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| DE10114087B4 (en) * | 2001-03-22 | 2004-09-02 | Leonhard Weiss Gmbh & Co. | Device for laying Y-shaped sleepers on a track bed |
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