CN105755915B - The plate-type unballasted track bed plate construction methods of CRTS III - Google Patents
The plate-type unballasted track bed plate construction methods of CRTS III Download PDFInfo
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- CN105755915B CN105755915B CN201610110442.0A CN201610110442A CN105755915B CN 105755915 B CN105755915 B CN 105755915B CN 201610110442 A CN201610110442 A CN 201610110442A CN 105755915 B CN105755915 B CN 105755915B
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- bedplate
- template
- plate
- track bed
- construction methods
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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
- E01B29/005—Making of concrete parts of the track in situ
-
- 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
- E01B2204/10—Making longitudinal or transverse sleepers or slabs in situ or embedding them
Abstract
The invention discloses a kind of plate-type unballasted track bed plate construction methods of CRTS III and leveling frock.Method comprises the following steps, S1:Preparation of construction;S2:Reinforcement installation;S3:Model sheetinstallat;S4:Frock is flattened to install;S5:Concreting is simultaneously flattened;S6:Form removal.The plate-type unballasted track bed plate construction methods of CRTS III of the present invention have the advantages that strong applicability, utilization rate are high, easy to operate, can improve operating efficiency and quality, reduction manual work intensity.
Description
Technical field
Constructed the present invention relates to plate-type ballastless track construction technology, more particularly to the plate-type unballasted track bed plates of CRTS III
Method.
Background technology
The template non-fragment orbits of CRTS III have shoulder block fastener, precast track plate, self-compacting concrete to fill by rail, elasticity
Layer, limited impression, intermediate isolating layer(Geotextiles)With reinforced concrete footing plate composition, with performance stabilization, good endurance, make
The features such as using long lifespan.The plate-type unballasted track bed plates of CRTS III are used as the supporting course between track plates and beam face and slip
Layer, top surface absolute altitude, flatness control require high, and precision is difficult to ensure that.
The content of the invention
The technical problem to be solved in the present invention be overcome the deficiencies in the prior art there is provided a kind of strong applicability, utilization rate it is high,
The plate-type unballasted track bed plates of CRTS III that are easy to operate, can improving operating efficiency and quality, reduce manual work intensity are applied
Work method.
In order to solve the above technical problems, the present invention uses following technical scheme:
A kind of plate-type unballasted track bed plate construction methods of CRTS III, comprise the following steps:
S1:Preparation of construction:Complete beam face dabbing to check and check and accept, organization material, equipment are marched into the arena, four of measurement bedplate
Angle point and setting-out, record setting-out point height, and the angle point line between four angle points is ejected with the line of ink marker;
S2:Reinforcement installation:Two layers of laying of reinforced mesh point, first lays bottom layer of the reinforcing steel mesh sheet according to angle point line, then in beam
L-shaped connection reinforcing bar is installed in the pre-buried branch sleeve in face, after the completion of lay top layer reinforced mesh, and reinforcement bar support is connected by L-shaped
Support is fixed, with U-shaped bar connecting levels reinforced mesh formation framework of steel reinforcement, U-shaped shape muscle bottom and reinforced mesh cage bar termination
Alignment colligation;
S3:Model sheetinstallat:The installation position line of bedplate side template has first been set in beam face bullet, from the span centre position in beam face to
Two ends assembly side template, in place and reinforces side template according to installation position line, after side template is installed, installs fixed expansion joint
Template;Limited impression template is installed with locating rack again, first locating rack is arranged at the top of bedplate side template, then by limited impression
Limited impression template is welded and fixed by model sheetinstallat on the crossbeam of locating rack with bedplate reinforced mesh, then removes locating rack,
And bedplate top surface elevation line is indicated on the inside of template;
S4:Frock is flattened to install:The walking track of leveling frock is installed at the top of along side template, the vehicle with walking machine of frock will be flattened
Set up into walking track, and be connected to the floating rule below walking mechanism and be placed between two side templates of bedplate, adjust floating rule
Elevation of bottom, makes it meet base plate top surface absolute altitude requirement;
S5:Concreting is simultaneously flattened:First beam face is sprinkled water and soaked, then start to pour, vibrated concrete, concrete vibrating
After closely knit, two people simultaneously advance leveling frock in bedplate both sides and carry out base plate top surface leveling warehouse, and leveling is until scrape repeatedly
Untill chi lower concrete enriches;
S6:Form removal:Before concrete initial set, limited impression template and templates for expansion joints are removed, before concrete final set, bottom is carried out
The press polish of seat board concrete surface is handled, and eliminates cup shake, sand holes, bubble, and concrete strength is reached after more than 2.5Mpa, removes bottom
Two side templates of seat board.
It is used as the further improvement of above-mentioned technical proposal:
When performing step S2, when the pre-buried branch sleeve in beam face is if any damaged, missing or larger position deviation, bored
Hole bar planting processing, bar planting depth is no less than 200mm.
During the U-shaped steel bar meter of 3 in Curve Segment, U-shaped reinforcing bar height change oblique line is first drawn, it is determined that high per hole beam U-shaped reinforcing bar
Degree, according to the corresponding U-shaped muscle height per hole beam during colligation, by U-shaped reinforcing bar colligation to correspondence position after measurement is accurate.
When performing step S3, side template uses composite assembly punching block, and straightway construction uses monolithic punching block, and curved section is applied
In man-hour, it will be superimposed and be connected by screw bolts above and below two pieces of punching blocks, adjusting screw rod is set between punching block and beam face, adjusted by adjusting
Screw rod, makes side form plate top surface absolute altitude meet bedplate concreting requirement.
When monolithic punching block is constructed, in punching block outer beams face, steel bar end is squeezed into drilling, wedges timber wedge fixed form;Two pieces of punching blocks
When being superimposed assembling construction up and down, template adjustment is carried out with reinforcing by flange adjusting screw rod in punching block mechanical junction, it is ensured that side
Mold plate verticality and stability.
When performing step S5, promote and pour from one end to the other side along beam body longitudinal direction, one-shot forming;Or from limited impression
Place is poured in the middle of groove to surrounding, extrudes laitance;Or poured from the downside of curved section to high side;When vibrating, vibrating head with it is each
Template keeps 5cm-10cm distances.
During leveling, special messenger's follow-up leveling frock simultaneously observes floating rule lower concrete situation, and any excess concrete is rooted out in time simultaneously
It is artificial behind floating rule receipts face to receive face to cavity place's feed supplement, after the completion of check flatness with 5m guiding rulers, unqualified place's progress is secondary to repair
Mend.
When performing step S6, remove after limited impression template and templates for expansion joints, troweling is carried out to limited impression and is examined
Physical dimension is looked into, it is underproof to be repaired;Faulting of slab ends situation, expansion joint width and smooth-going situation between bedplate are checked, if any scarce
Limit repair process.
Compared with prior art, the advantage of the invention is that:
The plate-type unballasted track bed plate construction methods of CRTS III of the present invention, using assembled punching block, strong applicability, utilization
Rate is high, assembly and disassembly are flexible;Bedplate upper surface is flattened using special leveling frock, manual operation amount is effectively reduced, protected
Base plate top surface absolute altitude, flatness quality have been demonstrate,proved, construction efficiency has been improved, accelerates construction speed.
Brief description of the drawings
Fig. 1 is the flow chart of the plate-type unballasted track bed plate construction methods of CRTS III of the present invention.
Fig. 2 is the leveling tool structure schematic diagram for the present invention.
Each label is represented in figure:
1st, walking mechanism;11st, entablature;12nd, lifting screw;13rd, directive wheel;2nd, floating rule;3rd, walking track;4th, shake flat
Machine;5th, side template.
Embodiment
Fig. 1 shows a kind of flow of the plate-type unballasted track bed plate construction method embodiments of CRTS III of the present invention,
The construction method comprises the following steps:
S1:Preparation of construction:Complete beam face dabbing to check and check and accept, organization material, equipment are marched into the arena, four of measurement bedplate
Angle point and setting-out, record setting-out point height, and the angle point line between four angle points is ejected with the line of ink marker;
S2:Reinforcement installation:Two layers of laying of reinforced mesh point, first lays bottom layer of the reinforcing steel mesh sheet according to angle point line, then in beam
L-shaped connection reinforcing bar is installed in the pre-buried branch sleeve in face, after the completion of lay top layer reinforced mesh, and reinforcement bar support is connected by L-shaped
Support is fixed, with U-shaped bar connecting levels reinforced mesh formation framework of steel reinforcement, U-shaped shape muscle bottom and reinforced mesh cage bar termination
Alignment colligation;
S3:Model sheetinstallat:The installation position line of bedplate side template 5, the span centre position from beam face have first been set in beam face bullet
To the assembled side template 5 of two ends, side template 5 in place and is reinforced according to installation position line, after side template 5 is installed, installs and fixes
Templates for expansion joints;Installed again with locating rack in limited impression template, the present embodiment, locating rack uses channel-section steel welding production, by fixed
Position frame, positioning crossbeam, adjusting screw rod and connecting bolt composition, are first arranged on the top of bedplate side template 5 by locating rack, then will limit
Position groove template is arranged on the crossbeam of locating rack, and regulation adjusting bolt makes limited impression template top surface absolute altitude meet after requirement,
Limited impression template is welded and fixed with bedplate reinforced mesh with 10mm round steel, then removes locating rack;Using CPIII track controls
The system net measurement elevation of side template 5 and plan-position, secondary fine setting is carried out after calibration, after the completion of fine setting, and side template 5 is measured again and is pushed up
Face elevation, and the top surface of side template 5 is calculated to bedplate designed elevation distance, then in the inner side of side template 5 sign bedplate top surface
Elevation line;
S4:Frock is flattened to install:The walking track 3 of leveling frock is installed along the top of side template 5, the walking of frock will be flattened
Walking track 3 is inserted by mechanism 1, and the floating rule 2 being connected to below walking mechanism 1 is placed between two side templates 5 of bedplate, is adjusted
The whole elevation of bottom of floating rule 2, makes it meet base plate top surface absolute altitude requirement;
S5:Concreting is simultaneously flattened:First beam face is sprinkled water and soaked, then start to pour, vibrated concrete, concrete vibrating
After closely knit, two people simultaneously advance leveling frock in bedplate both sides and carry out base plate top surface leveling warehouse, and leveling is until scrape repeatedly
Untill the lower concrete of chi 2 enriches, and ensure that base plate top surface and the base plate top surface elevation line of the inner side of side template 5 sign are put down
Together;
S6:Form removal:Before concrete initial set, limited impression template and templates for expansion joints are removed, before concrete final set, bottom is carried out
The press polish of seat board concrete surface is handled, and eliminates cup shake, sand holes, bubble, and concrete strength is reached after more than 2.5Mpa, removes bottom
Two side templates 5 of seat board.
The plate-type unballasted track bed plate construction methods of CRTS III of the present invention, using assembled punching block, strong applicability, utilization
Rate is high, assembly and disassembly are flexible;Bedplate upper surface is flattened using special leveling frock, manual operation amount is effectively reduced, protected
Base plate top surface absolute altitude, flatness quality have been demonstrate,proved, construction efficiency has been improved, accelerates construction speed.Using Zheng Xu's Line for Passenger Transportation as
Example, completes 11.59 kilometers of bedplate constructions, the time has been saved more in the original plan 18 days, saved 520,000 yuan of engineering cost.
In the present embodiment, when performing step S2, the pre-buried branch sleeve in beam face if any damaged, missing or position deviation compared with
When big, steel planting processing is carried out, bar planting depth is no less than 200mm.
In the present embodiment, during the U-shaped steel bar meter of 3 in Curve Segment, U-shaped reinforcing bar height change oblique line is first drawn, it is determined that per hole
Beam U-shaped reinforcing bar height, according to the corresponding U-shaped muscle height per hole beam during colligation, by U-shaped reinforcing bar colligation to correspondence position after measurement is accurate
Put.
In the present embodiment, when performing step S3, side template 5 uses composite assembly punching block, high according to straightway bedplate
Degree and Design of length monolithic punching block size, the monolithic punching block high 20cm of the present embodiment, the 1/2 of a length of bedplate length.Straightway
Construction uses monolithic punching block, when curved section is constructed, will be superimposed and is connected by screw bolts above and below two pieces of punching blocks, between punching block and beam face
Adjusting screw rod is set, by adjusting adjusting screw rod, the top surface absolute altitude of side template 5 is met bedplate concreting requirement.
In the present embodiment, when monolithic punching block is constructed, in punching block outer beams face, steel bar end is squeezed into drilling, wedges timber wedge stent
Plate;When being superimposed assembling construction above and below two pieces of punching blocks, in the mechanical junction of punching block by flange adjusting screw rod carry out template adjustment with
Reinforce, it is ensured that the perpendicularity of side template 5 and stability.
In the present embodiment, when performing step S5, promote and pour from one end to the other side along beam body longitudinal direction, one-shot forming;
Or poured at limited impression in the middle of groove to surrounding, extrude laitance;Or poured from the downside of curved section to high side;Vibrate
When, vibrating head keeps 5cm-10cm distances with each template.
In the present embodiment, during leveling, special messenger's follow-up leveling frock simultaneously observes the lower concrete situation of floating rule 2, roots out in time
Any excess concrete and to cavity place's feed supplement, it is artificial behind the receipts face of floating rule 2 to receive face, after the completion of with 5m guiding rulers inspection flatness, it is unqualified
Place carries out secondary repairing.
In the present embodiment, when performing step S6, remove after limited impression template and templates for expansion joints, limited impression is entered
Row troweling simultaneously checks physical dimension, underproof to be repaired;Check faulting of slab ends situation, expansion joint width and smooth-going feelings between bedplate
Condition, if any scarce limit repair process.
Fig. 2 shows the leveling frock for the above-mentioned plate-type unballasted track bed plate construction methods of CRTS III, the leveling
Frock includes walking mechanism 1, floating rule 2 and the walking track 3 being installed on the side template 5 of bedplate, and walking mechanism 1 includes upper
Crossbeam 11, lifting screw 12 and a pair of directive wheels 13, a pair of directive wheels 13 are divided into the two ends of entablature 11, and directive wheel 13 is placed in
Walk in track 3, what the liftable of lifting screw 12 was adjusted is installed in the middle part of entablature 11, floating rule 2 is connected under lifting screw 12
End, the middle part of floating rule 2 is equiped with the flat machine 4 that shakes.The present invention's is used for the whole of the plate-type unballasted track bed plate construction methods of CRTS III
Flat frock, its is simple in construction, easy to operate, is greatly improved screed operation efficiency and quality, and effectively reduce people's work
Industry amount, reduces labor intensity.
Although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability
The technical staff in domain, in the case where not departing from technical solution of the present invention scope, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible variations and modification, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, all should fall in the range of technical solution of the present invention protection.
Claims (8)
1. a kind of plate-type unballasted track bed plate construction methods of CRTS III, it is characterised in that comprise the following steps:
S1:Preparation of construction:Complete beam face dabbing to check and check and accept, organization material, equipment are marched into the arena, and measure four angle points of bedplate
And setting-out, setting-out point height is recorded, the angle point line between four angle points is ejected with the line of ink marker;
S2:Reinforcement installation:Two layers of laying of reinforced mesh point, first lays bottom layer of the reinforcing steel mesh sheet according to angle point line, then pre- in beam face
In the branch sleeve buried install L-shaped connection reinforcing bar, after the completion of lay top layer reinforced mesh, and by L-shaped connect reinforced bar support consolidate
Fixed, with U-shaped bar connecting levels reinforced mesh formation framework of steel reinforcement, U-shaped shape muscle bottom is alignd with reinforced mesh cage bar termination
Colligation;
S3:Model sheetinstallat:First bedplate side template has been set in beam face bullet(5)Installation position line, from the span centre position in beam face to
Two ends assembly side template(5), according to installing position line by side template(5)It is in place and reinforce, side template(5)After installation, install
Fixed templates for expansion joints;Limited impression template is installed with locating rack again, locating rack is first arranged on bedplate side template(5)Top
Portion, then by limited impression model sheetinstallat on the crossbeam of locating rack, limited impression template and bedplate reinforced mesh are welded solid
It is fixed, then remove locating rack, and the sign bedplate top surface elevation line on the inside of template;
S4:Frock is flattened to install:Along side template(5)Top is installed by the walking track of leveling frock(3), the walking of frock will be flattened
Mechanism(1)Insert walking track(3), and it is connected to walking mechanism(1)The floating rule of lower section(2)It is placed in two side templates of bedplate
(5)Between, adjust floating rule(2)Elevation of bottom, makes it meet base plate top surface absolute altitude requirement;
S5:Concreting is simultaneously flattened:First beam face is sprinkled water and soaked, then start to pour, vibrated concrete, concrete vibrating is closely knit
Afterwards, two people simultaneously advance leveling frock in bedplate both sides and carry out base plate top surface leveling warehouse, and leveling is until floating rule repeatedly(2)
Untill lower concrete enriches;
S6:Form removal:Before concrete initial set, limited impression template and templates for expansion joints are removed, before concrete final set, bedplate is carried out
Concrete surface press polish is handled, and eliminates cup shake, sand holes, bubble, and concrete strength is reached after more than 2.5Mpa, removes bedplate
Two side templates(5).
2. the plate-type unballasted track bed plate construction methods of CRTS III according to claim 1, it is characterised in that:Performing
During step S2, when the pre-buried branch sleeve in beam face is if any damaged, missing or larger position deviation, steel planting processing is carried out, is planted
Muscle depth is no less than 200mm.
3. the plate-type unballasted track bed plate construction methods of CRTS III according to claim 2, it is characterised in that:Curve
During the U-shaped steel bar meter of section, first draw U-shaped reinforcing bar height change oblique line, it is determined that the height per hole beam U-shaped reinforcing bar, during colligation according to
The corresponding U-shaped muscle height per hole beam, by U-shaped reinforcing bar colligation to correspondence position after measurement is accurate.
4. the plate-type unballasted track bed plate construction methods of CRTS III according to any one of claim 1 to 3, its feature
It is:When performing step S3, side template(5)Using composite assembly punching block, straightway construction uses monolithic punching block, and curved section is applied
In man-hour, it will be superimposed and be connected by screw bolts above and below two pieces of punching blocks, adjusting screw rod is set between punching block and beam face, adjusted by adjusting
Screw rod, makes side template(5)Top surface absolute altitude meets bedplate concreting requirement.
5. the plate-type unballasted track bed plate construction methods of CRTS III according to claim 4, it is characterised in that:Monolithic steel
When mould is constructed, in punching block outer beams face, steel bar end is squeezed into drilling, wedges timber wedge fixed form;Assembly is superimposed above and below two pieces of punching blocks to apply
In man-hour, template adjustment is carried out with reinforcing by flange adjusting screw rod in punching block mechanical junction, it is ensured that side template(5)Perpendicularity and
Stability.
6. the plate-type unballasted track bed plate construction methods of CRTS III according to any one of claim 1 to 3, its feature
It is:When performing step S5, promote and pour from one end to the other side along beam body longitudinal direction, one-shot forming;Or at limited impression
Poured in the middle of groove to surrounding, extrude laitance;Or poured from the downside of curved section to high side;When vibrating, vibrating head and each mould
Plate keeps 5cm-10cm distances.
7. the plate-type unballasted track bed plate construction methods of CRTS III according to claim 6, it is characterised in that:Leveling
When, special messenger's follow-up leveling frock simultaneously observes floating rule(2)Lower concrete situation, roots out any excess concrete and to being mended at cavity in time
Material, floating rule(2)It is artificial behind receipts face to receive face, after the completion of check flatness with 5m guiding rulers, unqualified place carries out secondary repairing.
8. the plate-type unballasted track bed plate construction methods of CRTS III according to any one of claim 1 to 3, its feature
It is:When performing step S6, remove after limited impression template and templates for expansion joints, troweling is carried out to limited impression and checks several
What size, it is underproof to be repaired;Faulting of slab ends situation, expansion joint width and smooth-going situation between bedplate are checked, is repaiied if any scarce limit
Multiple processing.
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CN106012717B (en) * | 2016-08-04 | 2017-11-03 | 中铁十七局集团第三工程有限公司 | One kind is vibrated apparatus for leveling |
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CN107119514A (en) * | 2017-05-15 | 2017-09-01 | 中铁四局集团机电设备安装有限公司 | A kind of complete frock of the plate-type unballasted track bed plates of CRTS III construction |
CN110219246A (en) * | 2019-06-18 | 2019-09-10 | 中铁十六局集团有限公司 | A kind of large span flexible bridge Construction of Ballastless Track method |
CN112376327A (en) * | 2020-11-13 | 2021-02-19 | 中国铁路设计集团有限公司 | Construction method of high-speed rail ballastless track bed plate |
CN112681034B (en) * | 2020-12-23 | 2022-11-04 | 中交路桥华南工程有限公司 | Concrete leveling control method |
CN113584957A (en) * | 2021-07-07 | 2021-11-02 | 高速铁路建造技术国家工程实验室 | Two-stage bolt-anchor assembling integral type track unit and bolt-anchor assembling integral type track |
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