CN101830036A - Concrete track slab prefabricating construction method of CRTS I type slab ballastless track - Google Patents

Abstract

The invention relates to a concrete track slab prefabricating construction method of a CRTS I type slab ballastless track. The method comprises the following steps of: (1) weaving a steel reinforcement framework; (2) mounting the steel reinforcement framework in a steel mould, wherein the steel mould is internally sprayed with a separant and provided with a pre-embedded sleeve; (3) penetrating a PC (Prestressed Concrete) steel rod and mounting an anchor backing slab; (4) pre-tightening the PC steel rod; (5) mounting a hoisting nut, a spiral bar and a grounding terminal nut; (6) testing an insulation resistor; (7) pouring concrete and vibrating; (8) plastering the surface; (9) maintaining by using steam; (10) dismounting fixing bolts of a pre-embedded piece; (11) demoulding: cleaning the pre-embedded piece and a template, closing the mould, spraying the separant in the steel mould and mounting the pre-embedded sleeve for later use; (12) overturning and examining shape: turning over the CRTS I type slab ballastless track contrete track slab obtained in the step (11) and examining the shape and the appearance; (13) stretching by prestress; (14) sealing the anchor; (15) maintaining in a water pool; and (16) storing in a slab storage area.

Description

The prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board

Technical field

The present invention relates to the manufacture method of plate-type ballastless track, the prefabricated worker's method of particularly a kind of CRTS I template formula non-fragment orbit concrete railway board.

Background technology

Since ballasted track because of train repeatedly by making railway roadbed lax gradually, cause track to lose ride comfort, influence passenger's comfort level, strengthened the maintenance workload of circuit simultaneously, this do not meet high-speed railway circuit the good stable, ride comfort that must have and the requirement of few maintenance.Compare with ballasted track, ballastless track has better overall, stability and durability, though technical sophistication, one-time investment is greater than ballasted track, but its cycle in service life is long, maintenance capacity is little, and freedom from repairs can effectively be alleviated the line maintenance task difficulty that causes because of speed increases, rate of traffic flow increases, the maintenance skylight is shorter and shorter, the maintenance standard improves, large-scale maintenance machinery equipment availability noise etc. basically.Existing CRTS I template formula non-fragment orbit concrete railway board precasting process technology exists subject matter as follows: (1) efficiency of construction efficient is low, can not finish a production cycle in 24 hours, influences project progress; (2) labour's daily schedule irregular, production process labour organizes difficulty; (3) constant product quality is poor, and wayward, plate body concrete leakiness very easily occurs, plate facial cleft line pitted skin is many, plate body reinforcement location error is big; (4) amount of labour demanded is big, and personnel arrangement is coordinated the difficulty height, and the influence of manufacture process human factor is big.

Summary of the invention

Technical problem to be solved by this invention is: provide a kind of efficiency of construction efficient height, labour's daily schedule is irregular, production process labour organizes easily, constant product quality is poor, amount of labour demanded is less relatively and personnel arrangement is coordinated the little prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of difficulty.

The present invention is achieved through the following technical solutions: the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board comprises the steps:

(1) establishment framework of steel reinforcement;

(2) framework of steel reinforcement is installed in the punching block, is coated with interleaving agent in the described punching block and service sleeve is installed;

(3) wear PC rod iron, peace anchor plate;

(4) PC rod iron pretension;

(5) lifting nut, spiral bar and ground terminal nut are installed;

(6) megger test;

(7) concrete perfusion, vibration;

(8) wipe one's face;

(9) steam curing;

(10) dismounting built-in fitting set bolt;

(11) demoulding: the CRTS I template formula non-fragment orbit concrete railway board that tentatively is prefabricated into after the demoulding, clear up built-in fitting, cleaning masterplate, matched moulds then and in punching block, spray interleaving agent and service sleeve is installed standby;

(12) upset and checking the configuration: the CRTS I template formula non-fragment orbit concrete railway board that obtains in the overturning step (11), and check its profile, outward appearance;

(13) prestressed stretch-draw;

(14) sealing off and covering anchorage;

(15) pond health;

(16) depositing the plate district deposits.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, the steam curing in the step (9) comprises following four-stage:

(a) rest the stage: the workshop temperature remains on 5-30 ℃, and the time is no less than 3 hours;

(b) temperature rise period: programming rate per hour is no more than 15 ℃;

(c) the constant temperature stage: vapor (steam) temperature is no more than 45 ℃ during constant temperature, and CRTS I template formula non-fragment orbit concrete railway board plate body core concrete temperature is no more than 55 ℃, and constant temperature time is no more than 6 hours;

(d) temperature-fall period: cooling rate per hour is no more than 15 ℃.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, in the stage, winter, vapor (steam) temperature was no more than 40 ℃ at constant temperature, and summer, vapor (steam) temperature was no more than 42 ℃.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, steel bar binding clamping fixture is adopted in the making of deformed bar net sheet in the step (1), comprise side plate, base plate, vertical lumps of wood, the horizontal lumps of wood and support frame, wherein, side plate and base plate constitute groove, vertically the lumps of wood and the horizontal lumps of wood are arranged on the interior base plate of described groove crisscrossly, vertically the lumps of wood and the horizontal lumps of wood all have a plurality of draw-in grooves that are used to snap in reinforcing bar and position, and support frame is arranged on the below of described groove.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, vertically the lumps of wood and laterally the difference in height of the upper surface of the lumps of wood equal the diameter of the reinforcing bar that will fix.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, vertically the number of the lumps of wood and the horizontal lumps of wood is respectively 2～10.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, the pond health in the step (15): curing time is more than three days, and the maintenance water temperature is not less than 5 ℃.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, the middle use of described step (3) railway plate die PC rod iron is located fast, set bolt; Make single PC rod iron be no more than 1 minute positioning time; It specifically is 200920302254.3 the disclosed content of patent application document referring to the patent No..

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, when temperature is higher than 5 ℃, also spray maintenance afterwards in step (16): spray curing time four is with the Heaven, CRTS I template formula non-fragment orbit concrete railway board surface is in dampness, and curing water and CRTS I template formula non-fragment orbit concrete railway board surface temperature difference are not more than 15 ℃.

The prefabricated worker's method of above-mentioned CRTS I template formula non-fragment orbit concrete railway board, when temperature was lower than 5 ℃, the pond health in the step (15): curing time was more than seven days, and the maintenance water temperature is not less than 5 ℃.

The prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention has following beneficial technical effects: cooperation between each operation, form continuous productive process, and can finish the productive target of a circulation in 24 hours; Automatic blanking machine is adopted in the reinforcing bar blanking, and cutting stock precision is controlled in the 1mm, blanking efficient height; The automatic distributing machine is adopted in the concrete perfusion, and cloth is even, and the vibration of vibrator side, concrete density height are adopted in vibration; Automatic temperature control equipment is adopted in steam curing, and the outer maintenance humidity of factory building adopts automatic sprinkler fire-extinguishing system control, and the temperature humidity Monitoring and Controlling is convenient; Amount of labour demanded is reduced to 5 people by average 6.3 people of single form, and the human factor influence reduces greatly; Plate end check line is the product quality common fault, and the present invention has thoroughly solved plate end check line problem by the control temperature.The CRTS I template formula non-fragment orbit concrete railway board that the prefabricated worker's manufactured of CRTS I template formula non-fragment orbit concrete railway board of the present invention is produced is applicable to 350 kilometers passenger dedicated railway lines of speed per hour, is particularly useful for the prefabricated production of CRTS I template formula non-fragment orbit concrete railway board of severe cold area.The CRTS I template formula non-fragment orbit concrete railway board that utilizes the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention to produce can guarantee durability, ride comfort and the comfortableness of high-speed railway, adopt the construction of batch production streamline, high-quality and efficient, guarantee track plate precision, satisfy the high-speed railway requirement; The full-automatic reinforcing bar machining production line is adopted in bar cutting, bending, has guaranteed the processing dimension and the angle of bend of reinforcing bar; Reinforcing bar binding carries out on wooden mold, has guaranteed that bar spacing and protective layer thickness are accurate, and has guaranteed that the coating of process of binding floating coat reinforcing bar is unlikely to because friction damage.Mixing plant adopts electronics metering and self-clocking system, has guaranteed concrete various raw-material ratio and concrete mixing time.The sandstone material adopts totally enclosed feed bin to store, and makes the stable of the not contaminated and sweat water content of sandstone material, has guaranteed that it deposits the temperature of quality and winter construction.Mould adopts the low distortion of the high accuracy combined steel in specialized factory's customization, and on the concrete frame ground that is fixed, has guaranteed that pre-track plate 1mm is with interior required precision.Adopt full-automatic attemperating unit to the track plate steam curing carry out temperature control, guaranteed the temperature and the steam-cured time in steam-cured each stage.Anchor recess cutter cant formula changes the mode of pre-buried rubber strip into by traditional pneumatic pick machinery cutter hair, and the machinery of avoiding cutter hair has guaranteed that also the degree of depth and the roughened surface of cutter hair is long-pending, for solid foundation has been established in the raising of track plate sealing off and covering anchorage quality to the concrete adverse effect of plate body.Adopt full-automatic tensioning equipment that the track plate is applied prestressing force, guaranteed the accuracy of tension stress and elongation, avoid the influence of human error.The finished product siccative that the sealing off and covering anchorage mortar uses specialized factory to produce has been guaranteed stablizing and the sealing off and covering anchorage quality of its every performance indications.Built the water that is used for the early stage health of track plate and support the pond in workshop, track plate tensioning anchor seal is finished laggard entry and is supported the pond maintenance, has accelerated the growth of track plate early strength, has improved production efficiency and has saved the place.The lifting, the concrete that adopt 10 tons of purlins to lift up into capable framework of steel reinforcement in the workshop are gone into operations such as mould cloth, the lifting of track plate, transportation, turnover panel, ejecting plate, effectively raise the space availability ratio in workshop, make unobstructed the carrying out of streamlined operation in whole workshop.

Description of drawings

Fig. 1 is the tensioning construction process chart of the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention;

Fig. 2 is the process chart of the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention;

Fig. 3 is the sealing off and covering anchorage construction flow chart of the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention.

Fig. 4 is the vertical view of the steel bar binding clamping fixture of the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention;

Fig. 5 is the side view of the steel bar binding clamping fixture of the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention shown in Figure 4;

Fig. 6 is the front view of the steel bar binding clamping fixture of the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention shown in Figure 4.

Wherein: 100-side plate, 200-base plate, the vertical lumps of wood of 300-, the horizontal lumps of wood of 400-, 500-support frame, 600-draw-in groove.

Embodiment

Embodiment 1

The prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of present embodiment is to construct in the winter time, and temperature is lower than 5 ℃, comprises the steps (process chart is as shown in Figure 2):

(1) establishment framework of steel reinforcement

(1-1) raw material of reinforcement rebar specification requirement

Reinforcing bar must meet the requirement of national existing related specifications and " the provisional technical conditions of passenger dedicated railway line CRTS I template formula non-fragment orbit concrete railway board ".Presstressed reinforcing steel adopts underrelaxation prestressing without bondn rod iron, and nominal diameter 13mm, rebar surface must not have scuffing or other flaw; PC rod iron tensile strength 〉=1420Mpa, yield strength 〉=1280Mpa, fracture elongation 〉=7%; Other physical and mechanical property should meet the related request of GB/T5223.3 " steel bar for prestressed concrete ".Regular reinforcement and epoxy coating reinforcing bar adopt the HRB335 hot rolled ribbed steel bar, and specification requirement must meet the regulation of GB1499.The epoxy coating reinforcing bar also must meet the regulation of JG3042-1997.Spiral bar uses the low-carbon (LC) cold drawn wire, must meet the regulation of GB/T343-1997.Insulating reinforcing steel bars transports, deposits, bends, must avoid the insulating barrier damage in the process of binding, finds that the insulating barrier damage must stop using, and takes the necessary measures and can not use after guaranteeing not influence its serviceability.All kinds of reinforcing bar fibrous roots carry out incoming inspection according to requiring, and store classifiedly, identify clear.

The specification requirement of (1-2) reinforcing bar processing, bending

(1-21) reinforcing bar processing is carried out with the method for not damaging its material at normal temperatures, and processes according to the design drawing size.End reinforced bending should utilize the facility one-shot forming, must not reply operation.

(1-22) coated reinforcement should penetrate the part of needs bending when bending and carry out bending in the plastic bushing again, in order to avoid damage coating.

Answer straightening before (1-23) reinforcing bar processing bends, remove oil stain, lacquer stain, scale slurry and the iron rust etc. on surface.Reinforcing bar should be straight, do not have local complications, the reinforcing bar after the processing, and the surface does not have and weakens the scar in reinforcing bar cross section.

(1-24) moment reinforcement should curve level and smooth curve, and its radius of curvature should not be less than 10 times of bar diameter.

(1-25) reinforcing bar should be processed under the normal temperature state, should not heat.Bend reinforcing bar and should progressively bend towards two ends from the middle part, crotch should once curve.

(1-3) the artificial blanking of reinforcing bar

(1-31) the general requirement of reinforcing bar blanking

The outer skin that the oil stain on A, regular reinforcement surface, lacquer dirt, cement mortar and utilization hammer striking energy peel off, iron rust etc. are all removed clean.The local rust cleaning of reinforcing bar can be taked manually to carry out with methods such as wire brush or emery wheels.As the back rebar surface that eliminates rust has serious pockmark, spot etc., hindered erosion during the cross section, rejecting need not, have cellular rusty stain reinforcing bar, must not use.

B, reinforcing bar should straight, the local bendings of nothing.

Reinforcing bar after C, the processing, the surface does not have the scar that weakens the cross section.

Answer straightening before D, the reinforcing bar processing.

(1-32) reinforcing bar baiting method

Measured length and carried out mark according to the different numbering of reinforcing bar by the construction drawing and the requirement of confiding a technological secret, accurately be placed on cutting machine edge of a knife position, started cutting machine bar cutting with slate pencil.Avoid during fracture preventing from the amount material, to produce cumulative errors, for this reason, need on workbench, to mark the size scale line and the baffle plate that control fracture size is used is set with the long material of short dipstick metering.Reinforcing bar after the cut-out is stacked neat by different numberings.Should before blanking, calculate the reasonably combined blanking of carrying out inadequately and through what butt welding can meet the demands for length.

(1-33) quality examination after the blanking

Total length permissible variation after A, steel bar stress are processed along the length direction is-10mm-0.

The fracture of B, reinforcing bar must not have the shape of a hoof or play phenomenons such as curved.

(1-4) reinforcing bar manually bends

(1-41) line

Before the bar bending,,, rule in each bending point position with slate pencil according to the reinforcing bar design size to complex-shaped reinforcing bar.Note during line:

A, line work should begin to carry out to both sides from the reinforcing bar center line; The asymmetric reinforcing bar in both sides also can be since end line, when drawing that the other end has discrepancy, then should readjust.

Check with design size after B, first reinforcing bar moulding, after meeting the back fully or meeting poor demand limit, produce by batch again.

(1-42) bar bending moulding

Reinforcing bar is when brake forming, and the axle diameter is 5 times of bar diameter, because shaping axle and axle are rotated at the same time, will drive reinforcing bar slippage forward, and therefore, when reinforcing bar was bent 90 °, bending point was neat with the axle inward flange approximately.

Reinforcing bar must be processed at normal temperatures, bends reinforcing bar and should progressively bend towards two ends from the middle part, the crotch one-shot forming.

Coated reinforcement must penetrate the sweep reinforcing bar when bending and carry out bending in the plastic bushing or after bending machine puts Buddhist nun's suede sleeve pipe again, in order to avoid damage coating.

(1-43) bend the back quality examination

A, reinforcing bar shape are correct, do not have the uneven phenomenon of warpage on the plane;

B, reinforcing bar bend up a place must not the crack, and end reinforced bending utilizes the facility one-shot forming, must not carry out repetitive operation;

Permissible variation after C, the bar bending moulding is: total length-10mm-0; Bent-up bar bends up a deviation 10mm.

D. coated reinforcement must adopt the coating repair liquid to repair if any damage.

E. all reinforcing bar bendings utilize the facility one-shot forming, forbid to reply operation.

(1-5) the reinforcing bar automatic blanking, bend

Transverse and longitudinal regular reinforcement and the processing of epoxy coating reinforcing bar and crooked employing 1 automatic bar bending corollary system of cover and the construction of bar cutting production line.Reinforcing bar at first must be familiar with carrying out specification, shape and the each several part size of blanking and bending machining reinforcing bar before blanking and brake forming, so that determine the bending operation step and prepare facility etc.These professional equipment characteristics are as follows:

(1-51) the processing coated reinforcement is injury-free for guaranteeing coating, installs rubber wear-resisting spare additional at each position that contacts with rebar surface.

(1-52) cutting production line can be set shearing length arbitrarily and cut off the classification of reinforcing bar by length automatically, and blanking velocity rapidly and accurately.

(1-53) be applicable to that specification is many, the cut-out of mass processing.

(1-54) come scale, the error of reinforcing bar slip or shearing length can not occur with automatic lifting baffle plate of 500mm.

(1-55) cut off system, can be connected work, can carry out two-way discharging and be connected work, reduce the rehandling of reinforcing bar with crooked production line with the crooked production line of many places as connecting-type.

(1-56) with blade through most advanced and sophisticated heat treatment, durability is good and all can use on four sides.Adopt the blade of big length, can cut off most dimension muscle simultaneously.

(1-57) reinforcing bar supply table assembling conveying device (both forward and reverse directions rotation) can transmit reinforcing bar flexibly.

(1-58) bending apparatus is injury-free for the anticorrosion rebar surface of protection processing, and bending axis and central shaft add rubber sleeve.

(1-59) the equipment range of work: the bar vertical bar reinforcing bar of the scope φ 10mm-40mm of the suitable processing of the reinforcing bar of prefabricated " track plate " and the processing of all coated reinforcements.

(1-510) occupation area of equipment is (long * wide): 26000mm * 6000mm.

(1-6) reinforcing bar welding

Welding of track plate L shaped steel muscle and the welding of ground terminal afterbody round steel all adopt the reinforcing bar welding positioner to weld, and guarantee that its position is accurate, and during welding, striking begins at an end of overlap joint reinforcing bar, receive arc on the overlap joint steel bar end, and arc crater must fill up.During the multilayer welding, the ground floor weld seam must have enough fusion penetrations, and main weld and tack weld particularly in the top and the terminal of tack weld, must fuse good.Scarfing cinder in time in the welding process, face of weld is smooth smooth.The reinforcing bar fusion length is for single-sided welding length is not less than 100mm, two-sided weld length is not less than 55mm.Weld bead height h 〉=0.3d, and must not be less than 4mm, weld width b 〉=0.8d, and must not be less than 8mm.

Homemade welding jig is adopted in anchor plate and spiral bar welding, reaches the concentric purpose of anchor plate and spiral bar.

(1-7) reinforcing bar binding

In order to guarantee the reinforcing bar binding precision, the plate body framework of steel reinforcement carries out overall binding on steel bar binding clamping fixture, steel bar binding clamping fixture adopts pine to make, and reinforcing bar binding is finished and is transported to the concrete pouring district and hangs up the respective identification board after qualified on inspection, utilizes purlin car integral hoisting to go into mould.

Shown in Fig. 4～6, steel bar binding clamping fixture comprises side plate 100, base plate 200, vertical lumps of wood 300, the horizontal lumps of wood 400 and support frame 500, wherein, side plate 100 and base plate 200 constitute groove, vertically the lumps of wood 300 and the horizontal lumps of wood 400 are arranged on the interior base plate 200 of described groove crisscrossly, vertically the lumps of wood 300 and the horizontal lumps of wood 400 all have a plurality of draw-in grooves 600 that are used to snap in reinforcing bar and position, and support frame 500 is arranged on the below of described groove.Wherein, vertically the lumps of wood 300 and laterally the difference in height of the upper surface of the lumps of wood 400 equal the diameter of the reinforcing bar that will fix.Vertically the number of the lumps of wood 300 is 9, and laterally the number of the lumps of wood 400 is 5.Using method is as follows: reinforcing bar after the size blanking, is placed in the draw-in groove of reinforcing bar mold by the drawing position respectively in accordance with regulations, fixes, and after all reinforcement installation are in place, carries out the steel bar overall lifting.By field practice, reinforcing bar satisfies the standard required precision in the plate of this equipment colligation, helps improving reinforcing bar binding efficient.In work progress, use steel bar binding clamping fixture to carry out plate body laid reinforcement binding and in place, can accurately fix various reinforcing bar position on the one hand, be convenient to workmen's construction of cooperating on the other hand, improved efficiency of construction; The reinforcing bar position error can be controlled in the 2mm, and the single reinforced mesh colligation time is no more than 1 hour.

(1-71) grade of steel, diameter, shape, size and the quantity of checking the finished product reinforcing bar before the reinforcing bar binding earlier whether with material list or design drawing, telling somebody what one's real intentions are conforms to, if any mistakes and omissions, must correct and augment.

(1-72) reinforcing bar adopts insulation to prick the silk colligation.

(1-73) reinforcing bar binding is firmly controlled reinforcement location by designing requirement, and satisfies following the requirement:

The silk colligation is pricked in A, reinforcing bar crosspoint with insulating solid;

B, except that the design particular provisions person, bearing rod, reinforcement and main muscle vertical (or parallel) in the plate;

The insulation that C, colligation are used is pricked the silk head and will inwardly be bent, and must not stretch in the protective layer;

D, at reinforcing bar crosspoint place, change by pointwise that wrapping wire direction (splayed) is staggered pricks knot, or prick knot by double diagonal line (cross) mode.

(1-74) laying of reinforcing bar cushion block and colligation

For guaranteeing the protective layer thickness at each position of plate body; between reinforcing bar and template, must use the concrete pad supporting; concrete pad thickness 35mm; functional and the compression strength of the alkaline-resisting and ageing resistance of concrete pad is not less than 60MPa; to be controlled protective layer thickness; each lifting reinforcing bar finishes before the concrete perfusion, answers position, quantity and the fastening degree thereof of scrutiny cover to reinforcement concrete pad.Concrete pad is by being no less than 4/m ²Arrange that the bundle silk head of colligation concrete pad and reinforcing bar must not stretch in the protective layer.The size of protective layer concrete pad should guarantee the accuracy of Minimum Concrete Protective Coating Thickness, and its shape should help the location of reinforcing bar.

(1-8) reinforcement fabrication and the quality problems that should note are installed

(1-81) reinforcement fabrication and the issuable common quality defect of installation and prevention and treatment measures

The model of A, reinforcing bar is incorrect; Before making, conscientiously contrast construction drawing, confirm just can enter operation when errorless, and the construction drawing that contrasts the position is when mounted once more confirmed errorless.

Overall dimensions are inaccurate after B, curve and the moulding of broken line reinforcing bar; Should emit 1: 1 full-page proof before the making of curve and broken line reinforcing bar by construction drawing, make moulding according to full-page proof during making; When first reinforcing bar moulding, revise immediately when close inspection defective and make size in allowable error.

C, main muscle or horizontal bar displacement; Put in strict accordance with construction drawing during the reinforcing bar assembling, reinforcing bar is straight during colligation, the position is accurate, and colligation point is wanted firmly and be the plum blossom shape to arrange that the colligation position has when departing from time to correct.

The length dimension of D, long reinforcing bar is inaccurate; Before processing, the customization reinforcing bar is measured, pinpointed the problems and in time change reinforcing bar, make to meet standard.

The reinforcing bar crotch direction of E, assembling is inaccurate; Require the operator to be familiar with the regulation of standard, take appointment with certificate.

F, protective layer concrete pad come off; The colligation of protective layer concrete pad is wanted firmly to forbid trampling steel reinforcement cage; Discovery has concrete pad to have to come off will in time reinforce when loosening.

G, insulating properties test failure; After treating the abundant drying of coated reinforcement fracture coating epoxy resin, can use coated reinforcement; Coated reinforcement is handled with care, avoids damaging coating; Also colligation is firm to adopt insulating paper to prop up pad to the electric leakage position.

(1-82) reinforcement fabrication and installation exercise follows item

To and confide a technological secret in strict accordance with construction drawing, arrangement and method for construction when reinforcement fabrication and installation and carry out operation, to note the quality of reinforcement fabrication and installation constantly, avoid taking place above-mentioned quality problems, will must not make amendment privately in time to relevant departments' reflection when finding new problem.

(2) framework of steel reinforcement is installed in the punching block, is coated with interleaving agent in the described punching block and service sleeve is installed:

(2-1) stencil design, installation

The track plate prefabrication template adopts whole punching block, and template bottomland foot bolt adopts arc welding to be connected with bottom reinforcement bars concrete frame basis pre-embedded steel slab.Punching block system and template pedestal all have good rigidity, guarantee that template is in use indeformable and sinkage does not take place.

Manufacturing and designing of steel form will have enough intensity, rigidity and stability, guarantees that each spot size of plate body is correct, and the built-in fitting position is accurate.It is identical that attached vibrator adopts homonymy to turn to, and the mode that heteropleural is opposite arranges that vibration passes earlier to form cage, is passed to panel by skeleton again.

(2-11) bed die setting

The side form of plate body, end mould directly are located on the bed die design length of bed die=rail plate long degree+end mould design thickness, the design width of bed die=track plate width+side form thickness.Be provided with on the bed die and only starch adhesive tape, distolateral mould is connected with bed die is very stiff and demanding.

Require to be provided with support rail platform groove according to track plate design drawing on the bed die, the pre-buried insulating sleeve of design location preformed hole for increasing work efficiency, is provided with service sleeve location swelling cover in the groove on preformed hole.Make service sleeve easy to loading and unloading, can guarantee that again service sleeve accurately locatees, the concrete cast service sleeve that vibrates in the process is non-rising.

(2-12) end mould, side form setting

End mould, side form all adopt integral mold plate, and every template is by the synchronous traveling of two leading screw control end side forms.Distolateral mould junction is provided with only starches adhesive tape.Require design anchor recess perforating device according to being provided with on the side form, ground terminal, lifting sleeve pipe preformed hole.

P4856 is provided with different end moulds with the P4856A global template at inconsistent that end of track plate half round cut home position, and other distolateral mould and bed die are shared.Global template (as P4856 and P4856A type) all is provided with the ground terminal preformed hole on two side template correspondence positions.

(2-2) model is installed

(2-21) the preceding inspection is installed

A, inspection model support rail platform levelness, the intact degree of basic upright supports layer.Highly whether column pre embedded bolt spacing, reservation meet the demands, and whether the silk mouth is intact.

B, whether the mould plate face is smooth, bright and clean and remove ash quarrel on the template; Check whether electromagnetic shaker support and template commissure have cracking damaged, and if any repair welding in time, all have vibrator support repair welding model need reexamine four jiaos of levels of track plate.

C, that whether the model built-in fitting is installed is complete, and whether alignment pin is loosening, and whether the model seam is tight.

Whether spray releasing agent on D, template and the concrete surface, releasing agent forbids to use used oil, waste diesel mixed liquor, must use special-purpose ingot stripper.Must attention during the brushing releasing agent amount less and evenly, accomplish not holiday and the plate face does not gather.

E, check that model tightens firmware, whether the model orientation cotter way is complete, intact, whether the demoulding, jacking apparatus be in place, and whether the sign label is installed correct.

F, check whether basic built-in fitting position is correct, whether the built-in fitting bolt is loosening.

(2-22) installation procedure

Model scarfing cinder → brushing releasing agent → installation alignment pin and Sign Board → installation anchor plate → demoulding, ceiling device return → two side form synchronization-slidings side form locking → end in place mould be in place synchronously → end mould locking → pretension PC rod iron → model installation.

A, at first remove and to remain in end mould, side form upper surface concrete block, will remain in model surface concrete vestige wiped clean with the tie wire ball then, with rag the model surface concrete is removed totally at last.Any corner of model surface must be removed totally in the model scarfing cinder process, the omission position must not be arranged.Concrete block that produces in the scarfing cinder process or floating dust must not be got rid of from the alignment pin preformed hole.The model scarfing cinder does not have obvious pollution degree of being with free-hand wiping.Pay special attention to the anchor recess bottom during model cleaning and whether clean out, because be the place of ignoring easily and being not easy to see herein.

Model can the brushing releasing agent after B, scarfing cinder were finished, and the releasing agent brushing is carried out at twice, at first releasing agent evenly is coated in model surface, must not have the holiday phenomenon to occur during brushing, with totally touching cloth releasing agent was evenly brushed at model surface then.Model surface after brushing is finished must not have tangible wiping vestige, must not holiday.The releasing agent that configures is adopted on the pattern board surface, and (releasing agent: water=1: 1) spray, side form, end mould adopt releasing agent directly to brush.Or must pay special attention to anchor recess the latter half releasing agent and whether brush evenly holiday.

(2-3) built-in fitting is installed

(2-31) template cleans out, and behind the spraying releasing agent, service sleeve, vacuum glue net, lifting sleeve pipe, anchor plate is installed, and anchor plate is by the magnetic attraction on the anchor recess perforating device (or PC rod iron pretension bolt), and is closely connected with the anchor recess perforating device.Alignment pin coincide on anchor plate locating hole and the template.After framework of steel reinforcement is gone into mould, adopt insulation to prick silk spiral bar on the anchor plate is tightened on the framework of steel reinforcement, but must not contact, guarantee that the anchor plate position is unlikely to depart from spillage because of the spiral bar tenesmus in the process of vibrating.

(2-32) before the matched moulds, pre-buried sleeve is installed, must guarantee the perpendicularity of pre-buried sleeve, and the slit of its end face and model panel must not be surpassed 0.25mm, must not adopt hammer or other hardness of matter directly to knock pre-buried sleeve in the installation process, must add soft bed course or the rubber tup is slowly beated in.The alignment pin surface must be removed totally before installing, sleeve and alignment pin are tightened, install when pre-buried sleeve and need change sleeve at need.

(2-33) behind the matched moulds, the lifting sleeve pipe is installed, the lifting sleeve is tightened by the M16 bolt and is fixed on the side form.The ground terminal that is welded on the reinforcing bar firmware is fixed on the side form by the ground terminal anchor bolt.

(2-4) the reinforcing bar handling is installed

(2-41) the plate body framework of steel reinforcement lifts to the reinforcing bar transport vehicle with purlin car and special hanger after colligation shaping on the mold is qualified on inspection, is transported to the concrete pouring area, again hoisted in position.Behind the hoisted in position, check whether the longitudinal center of framework of steel reinforcement overlaps with the bed die longitudinal centre line, otherwise must locally adjust, two line centers are overlapped.Be in course of adjustment, take measures to guarantee that the plate body reinforcing bar is not damaged.When transporting, moving the finished product bar-mat reinforcement, to gently rise gently, must not fall suddenly or roll.

(2-42) 4 liftings of suspender are adopted in the lifting of plate body framework of steel reinforcement, for preventing that place, Heave Here wiring from coming off, the reinforcing bar distortion, must strengthen near the point of the reinforcing bar binding the suspension centre, increase the wiring radical.The suspension hook that contacts with reinforcing bar simultaneously need adopt flexible plastic tube or rubber parcel, prevents the coating of damage coated reinforcement in the hoisting process.

(2-43) any reinforcing bar in the framework of steel reinforcement of installation must not be collided with built-in fitting in the plate.

(2-44) before mould is gone in lifting, should remove totally the oil slick on the template surface, in order to avoid influence steel bar quality.

(3) wear PC rod iron, peace anchor plate: adopt the patent No. be in 200920302254.3 disclosed railway plate die PC rod iron locate fast, set bolt, can realize fast quick and precisely locating with fastening when PC rod iron and anchor plate are installed, and can when the dismounting mould, realize fast quick-detach, the needs of realized fast, efficiently constructing.It has simple in structure, the characteristics that effect is high; Single PC rod iron is no more than 1 minute positioning time.

(4) PC rod iron pretension

(5) lifting nut, spiral bar and ground terminal nut are installed.

(6) megger test:

(6-1) testing equipment

(6-11) ZL5 type intelligent LCR measuring (abbreviation electric bridge);

(6-12) 2 of the 60kg/m rail of the about 6m of length (each makes a call to the circular hole that a diameter is 9.8mm the web of the rail place of rail two end distance end 10m);

(6-13) standard steel Baogang connecting line is 1, and length 2m, sectional area are not less than 42mm ²(Φ 1.2mm * 37), and adopt the bolt of diameter 10mm to press and seal by mode with an end of two rail and connect;

(6-14) the special-purpose chock plug of the signal of diameter 9mm is 2.

(6-2) experimental condition

(6-21) 220V AC power, voltage is stable;

(6-22) testing ground does not have electromagnetic interference, is examined track plate periphery 5m scope and subsurface and does not have metal object (adopt metal detector that the place is surveyed, guaranteeing does not have metal object).

(6-3) test procedure

(6-31) start

(6-32) pecker is installed

(6-33) zeroing

(6-34) adjust test frequency: track plate insulation performance test allocation is f=2000Hz.

(6-35) will be examined the track plate and be placed on the solid smooth ground, two one steel rails will be placed on track plate support rail position.

(6-36) the rail pad is risen, make the flange of rail, adjust gauge to 1435mm apart from support rail face 50mm with the insulation wooden unit.

(6-37) connect with one section envelope of standard steel copper-clad connecting line with two strands of rail, the other end leading-out terminal of rail is connected with electric bridge.

(6-38) measure

(6-381) the inductance value L (mH) between measurement two rail leading-out terminals; After confirming that terminal and electric bridge connect, by [Ls/Q] key, again by [startup] switch, the LCR display shows value and the unit of series inductance L.Measure three times, get arithmetic mean of instantaneous value as measurement result.

(6-382) the inductance value R (Ω) between measurement two rail leading-out terminals; After confirming that terminal and electric bridge connect, by [Rs/Q] key, again by [startup] switch, the LCR display shows value and the unit of series inductance R.Measure three times, get arithmetic mean of instantaneous value as measurement result.

(6-310) rail shifted out examined the track plate, and place on the insulating bodies, make the flange of rail apart from the height on ground with move rail before the flange of rail identical apart from the height on ground; Gauge is adjusted to 1435mm; Keep rail one section envelope in two ends to connect state.

Inductance value L0 (mH) and resistance value R0 (Ω) between two rail leading-out terminals are measured in (6-311) repetition (6-381) and (6-382) step, test and get arithmetic mean of instantaneous value as measurement result three times.

(6-4) testing result evaluation

(6-41) examined the track plate and made rail inductance relative deviation amount, be i.e. (L-L0)/L0, stripped deviation amount≤± 3%.

(6-42) examined the track plate and made rail AC resistance relative deviation amount, be i.e. (R-R0)/R0, stripped deviation amount≤+ 15%.

(6-5) framework of steel reinforcement insulating properties test

After framework of steel reinforcement is adjusted to the right place, before the concrete perfusion, measure the insulating properties of confirming framework of steel reinforcement with the 500v megameter, resistance must not be less than 2M Ω.Discovery resistance is defective, utilizes insulating paper to prop up the also firm or adjustment reinforcement location of colligation of pad, and is qualified until detecting.

Detect principle: be insulation between any two regular reinforcements between the levels reinforcing bar of framework of steel reinforcement, promptly the test resistance value must not be less than 2M Ω.

Detection method: ohmmeter (megger) is in open state, two detection lines that are connected on the ohmmeter are connected respectively on two reinforcing bars that need to detect, constantly shake ohmmeter, pointer until ohmmeter is stabilized on the reading, expression detects effectively, this reading is not less than 2M Ω, and it is qualified that expression detects.Cycling like this is until all qualified.

(7) concrete perfusion, vibration:

(7-1) raw material are prepared

(7-11) cement

Mix the cement that the system concrete is used,, adopt stay in grade, strength grade to be not less than the normal silicate bulk cement of 42.5MPa according to the needs of track plate structure.

(7-12) fine aggregate

The natural medium sand that the fine aggregate that concrete is used selects for use Liaohe River Du Jiang Shachang and permanent sand field, six stockaded villages, Qinghe to produce according to different mixture ratio respectively than choosing, clay content≤1.5%, clod content≤0.5%.

(7-13) coarse aggregate

The aggregate maximum particle diameter is 20mm, the scleroid rubble that the plate body concrete respectively selects Tieling town west Bao Shichang and Tieling Xiong Guan village stone field to produce according to different mixture ratio than choosing with coarse aggregate.

(7-14) additive

Making sheet concrete additive selects for use the Heze, Shandong to join the polycarboxylate high-efficiency water-reducing agent that strong additive Co., Ltd produces.

(7-15) admixture

The compound admixture that sky, plate body concrete admixture Chengdu good fortune is produced is to improve the requirement of durability of concrete.Its technical indicator meets table 1 requirement.

The specification requirement of table 1 admixture

Sequence number	Project	Specification requirement
			??1	Chloride ion content (%)	Should not be greater than 0.02

(7-16) mixing water

Mixing water and curing concrete water are drinking water, and concrete is not had corrosiveness.

(7-2) construction match ratio

Before the concrete mixing, testing crew is measured the moisture content of sand, stone earlier, accurately measures thick, the fine aggregate change of moisture content that cause because of Changes in weather, in time adjusts the construction match ratio, selected theoretical match ratio is converted into the construction match ratio, calculates the various quantity of material of every tray concrete actual needs.Batching adopts the metering of fully automatic culculating system, and carries out record on microcomputer.

(7-3) concrete mixing specification requirement

(7-31) when the concrete batching mixture, concrete raw material requires to carry out accurate weighing in strict accordance with the construction match ratio, and the quality consumption of water, Binder Materials, additive is accurate to ± and 1%; The quality consumption of sand, building stones is accurate to ± and 2%;

(7-32) the concrete mix goes into the mould air content and must meet design requirement≤3%.

(7-33) in the concrete mixing process, must measure the slump of concrete mix, slump must satisfy 100 ± 20mm requirement.

(7-34) die plate temperature must be at 5 ℃～35 ℃ during concreting, and the concrete mix molding temperature must be at 5 ℃～30 ℃.

When (7-35) stirring, drop into fine aggregate, cement, admixture and additive to mixer earlier, after stirring, add 80% of required water amount again, treat to drop into again after mortar fully stirs coarse aggregate and add the residue water consumption, and till continuing to be stirred to evenly.The mixing time in above-mentioned each stage that feeds intake is no less than 30s, and total mixing time is no less than 2min, also be not more than 3min, and concrete must stir solid colour.

(7-36) teletostage mix concrete specific (special) requirements

(7-361) during winter construction, do thermal technology's calculating, calculate the heating-up temperature of definite mixing water, thickness bone amount according to the thermal technology by laboratory.And to used raw material take to heat up, the insulation measure.

(7-362) mixing water adds the thermal recovery Boiler Steam in conjunction with resistor.Build two about 15m in mixing station ³Cistern (needs of 40 blocks of plates of the daily output are satisfied in single pond), be communicated with jet chimney respectively and heating resistor film be installed, calculate temperature required the heating according to the thermal technology, but the heating maximum temperature must not be greater than 80 ℃.The filler pipe road adopts the insulation of rock wool parcel.The retaining that can not use up the same day must be drained; Reproduce groundwater abstraction before the heating.

(7-363) cement, admixture, additive container adopt increases the insulation of rock wool heat-preservation cover.Cement, additive and admixture must not directly heat.

(7-364) coarse-fine aggregate is all gone into canopy, and charging aperture is provided with that thick tarpaulin is windproof, rainproof, snow defence; And set up the aggregate thermal treatment zone at outlet section, adopt underground heat or steam to heat.

The water that drops into aggregate earlier when (7-365) stirring and heated stirs, and adds cement, admixture and additive again, in order to avoid cement directly contacts with hot water.

(7-366) must conscientiously check mixing building, vibrator, supply line etc. before the concrete perfusion, guarantee that the concrete winter executes normal operation.

(7-4) concrete transportation

Phenomenons such as concrete can not be emanated in transportation, spillage, serious bleeding and slump-loss are excessive.When constructing in the winter time, the hopper of transportation must be taked the cold-proof heat insulation measure.The concrete transportation adopts automobile to draw suspension bucket transportation concrete, and during with the suspension bucket casting concrete, the height that suspension bucket exports between continuing surface must not surpass 1m, and the discharge gate of suspension bucket bottom will be opened conveniently, and must not spillage.

(7-5) concrete cast

Concrete must be irritated fast freight soon, and the concrete after forbidding stirring is crossed long-time stop, in order to avoid slump-loss is excessive.During the perfusion of track board concrete, guarantee the concrete molding temperature at 5 ℃～30 ℃, die plate temperature is at 5 ℃～35 ℃.Concrete divides two-layer building, and is progressively carried out to the other end by an end, and ground floor is built 5～7cm place, and the second layer is mended full, and concrete speading must be evenly.The monolithic track board concrete process of building must be finished before concrete initial set.

(7-6) concrete vibrating

Adopt the adhesion type Vibration Technology, cast ground floor concrete is opened form vibrator and is begun to vibrate, causing the surface has obvious laitance, and the second layer is mended full, opens form vibrator and is vibrated to concrete surface and is level and no longer significantly sinks, air pocket no longer occurs, the surface laitance occurs and is degree.For the first time, vibrating time is about 3min for the second time.Behind the vibration compacting, follow closely and adopt vibration leveling beam to catch up with the optical pressure face.

(8) wipe one's face:

Adopt vibration leveling beam to flatten behind the vibration compacting, adopt the floating concrete surface of trowel again, note filling out the limit fillet.After having smeared face summer, in time concrete surface is covered, avoid making the quick dehydration of concrete to cause dry and cracked.

(9) steam curing:

Steam curing is adopted small-sized maintenance canopy sealing maintenance process is set on the making sheet mould, covers tarpaulin, makes steam can reach the upper and lower, left and right circulation.Tarpaulin will be carried out and cover completely closely, has good heat insulation property, comprises following four-stage:

(a) rest the stage: being meant that the concrete cast finishes to heating up preceding placement a period of time earlier, mainly is in order to strengthen the resistivity of concrete to temperature rise period structural deterioration effect.The workshop temperature must remain on 20 ℃ during quiet the stopping, quiet stopping 5 hours after perfusion is finished.

(b) temperature rise period: refer to that the concrete original temperature rises to the constant temperature stage, produce the crack too soon because of volumetric expansion, therefore must control programming rate, per hour 5 ℃ for preventing concrete surface.

(c) the constant temperature stage: be the fastest-rising stage of concrete strength; Vapor (steam) temperature is 35 ℃ during constant temperature, 30 ℃ of CRTS I template formula non-fragment orbit concrete railway board plate body core concrete temperature, 4 hours constant temperature duration.

(d) temperature-fall period: in temperature-fall period, concrete hardens, as it is too fast to lower the temperature, and concrete can produce face crack, so cooling rate must be controlled per hour 5 ℃.

Thermometric regularly in maintenance processes, and carry out record.And employing computer automatic temperature measurement systematic survey maintenance canopy and plate body center concrete core temperature.

(10) dismounting built-in fitting set bolt

(11) demoulding: the CRTS I template formula non-fragment orbit concrete railway board that tentatively is prefabricated into after the demoulding, clear up built-in fitting, cleaning masterplate, matched moulds then and in punching block, spray interleaving agent and service sleeve is installed standby:

Undertaken with condition test specimen ruggedness test by laboratory, and be responsible for to measure temperature, carry out record, when concrete strength reaches more than the 40MPa, the plate surface is carried out form removable with circumstance of temperature difference during less than 15 ℃, must guarantee during form removal that beam body corner angle are complete.Must examine before the form removal and carry out after concrete surface and circumstance of temperature difference, compression strength meet correlation technique condition and standard, standard again, the maintenance of sprinkling water immediately after the form removal avoids excessive temperature differentials to cause the crack.

Demoulding flow process: unclamp PC rod iron pre-tightening apparatus, dismounting → unclamp ground terminal pre-buried (unclamping the alignment pin locking device) → unclamp model locking device → rotation back mode device, backing plate is lifted by crane in side form and plate body surface disengagings → installation, bolt → rotation jacking apparatus jacking plate body → demoulding is finished.After side form breaks away from fully, insulating sleeve is left in the jacking of track plate with four jack plate bodys.

End moulding/demoulding step: draw high end mould boss alignment pin → unclamp end mould pretension PC rod iron → unclamp end mould both sides set and locking screw → open camlock device (round end mould lock screw) → round end mould back mode device → withdraw from synchronously end mould.Cleaning masterplate, matched moulds also spray interleaving agent and service sleeve are installed standby in punching block.

(12) upset and checking the configuration: the CRTS I template formula non-fragment orbit concrete railway board that obtains in the overturning step (11), and check its profile, outward appearance.

Utilize the purlin to hang the track plate is transported to the turnover panel test zone, hang with the purlin in the turnover panel test zone track plate is hung vertically, slowly put down to opposite side then, attention must not damaged in collision track plate.Carry out the quality inspection of outward appearance and size with appliance special for detecting and precision level and total powerstation immediately behind the track plate turn-over.

(13) prestressed stretch-draw

(13-1) tensioning construction technological process

Referring to Fig. 1 tensioning construction process chart.

(13-2) specification requirement during stretch-draw

(1) checks near the situation of anchor plate before the stretch-draw,, treat that concrete strength can stretch-draw after reaching design if there is the research immediately after form removal of honeycomb and other defective to adopt remedial measures.

(2) anchor recess is cleaned out, and anchor plate and anchoring nut are cleaned greasy dirt and wiped clean.

(3) check whether anchor plate is vertical with conduit axis,, should proofread and correct, otherwise can make the excessive generation fracture of wire of PC rod iron local stress phenomenon if deviation is arranged.Perpendicularity after anchor plate is installed is controlled in 1 °.

(4) the stretch-draw jack must carry out the staking-out work of pulling force-oil pressure value by oil pressure gauge matching used with it before use jointly.

(5) oil pump and petroleum pipeline

Oil pump adopts 2YBZ2-80 type high-pressure oil pump, and electric oil pump has pressure stabilizing device, and oil pipe adopts high-pressure oil pipe, about tubing length 8m.

Fluid must filter when injecting oil pump, guarantees that objectionable impurities such as the little sand of no iron filings sneaks in the fluid, and often keep jack, the cleaning of oil pump, oil pipe and blank area, to guarantee the long-term normally use of stretch-draw machinery.

(6) the necessary close fit of two ends operating personnel when track plate longitudinal prestressing rod iron is carried out stretch-draw is made every effort to two ends stretch value unanimity.

(7) before the cast concrete, the PC rod iron is carried out pretension,, do not take place sagging when making it concrete perfusion with the straight degree of being of PC rod iron.

(8) concrete strength arrives more than the 40MPa, after the turnover panel passed examination, can carry out stretch-draw; Two controls are carried out in stretch-draw, and promptly prestress value is checked with PC rod iron stretch value based on the oil pressure gauge reading.

(9) after being stretched to proof stress 100%, the actual measurement elongation is in theoretical stretch value permissible variation scope.

(10) prestressed stretch-draw earlier laterally after order longitudinally, the transverse prestress muscle adopts single-ended stretch-draw, the longitudinal prestressing muscle adopts two ends symmetry stretch-draw, and the control two ends presstressed reinforcing steel screw thread amount of exposing basically identical, the single control stretching force of track plate transverse prestress rod iron 127KN, the single control stretching force of longitudinal prestressing muscle 122KN.

(14) sealing off and covering anchorage

(14-1) material technology requirement

The sealing off and covering anchorage mortar adopts the sealing off and covering anchorage mortar drier finished product that the sealing off and covering anchorage mortar performance requires that satisfies of Hefei Lei Pida building materials Science and Technology Ltd. production.The sealing off and covering anchorage mortar performance must meet table 2 requirement.

The performance requirement of table 2 sealing off and covering anchorage mortar

(14-2) deposit requirement

Sealing off and covering anchorage mortar raw material are deposited and must be deposited by the appointed place, must deposit by built on stilts 30cm when depositing, and from storehouse surroundings wall 50cm, caking keeps away from moisture.

(14-3) technological process

Process chart as shown in Figure 3.

(14-4) the sealing off and covering anchorage mortar is mixed system

According to the sealing off and covering anchorage mortar drier: the mass ratio of water=1: 0.095, prepare stirring, adopt planetary forced stirrer to stir; Mixing time can not be less than 3min; Alr mode stirs 60S slowly for adding water low speed (109r/min), and (216r/min) stirs 120S soon at a high speed again.Must note stirring between siccative and the water during stirring, the sealing off and covering anchorage mortar must be finished using with interior at 30min after stirring and finishing, if surpass 30min, can carry out secondary and stir, but forbid secondary to add water.

The sealing off and covering anchorage mortar perfect condition that mixes can be agglomerating for holding with have gentle hands, gently trembles into dispersity.

(14-5) sealing off and covering anchorage construction

(14-51) remove the glue net: duty goes out the glue net in the anchor recess before the pre-buried vacuum glue net when concreting, sealing off and covering anchorage, and generating the twice or the three road degree of depth automatically in anchor recess inside is the groove of 10mm for the 4mm width, has exempted the cutter hair of in the past constructing to anchor recess.This step plays an important role for the adhesion strength that improves sealing off and covering anchorage mortar and anchor recess.

(14-52) clear hole: adopt the clear hole of high pressure gas, must guarantee no greasy dirt, laitance, foreign material and ponding etc. in the anchor recess, in order to avoid influence the bonding of anchor block and anchor recess.

(14-53) spraying interfacial agents

Before the filler sealing off and covering anchorage, must in anchor recess, even spraying can improve the interfacial agents of mortar bonding intensity, and draw the unnecessary interfacial agents of anchor recess recess with absorbent materials such as cotton yarn or sponges.

(14-54) charging

Adopt the rigid plastics feeder, an amount of mortar of splendid attire is close to track plate anchor recess end opening edge with feeder front end lower limb, with pneumatic hammer material is headed in the anchor recess then.

(14-55) compaction moulding

The sealing off and covering anchorage mortar carries out layering and tamps.Adopt pneumatic hammer and the supporting rod of making firm by ramming that mortar is vibrated, frequency is not less than 1000Hz, and the power of vibrating is not less than 3kg, and the number of times that vibrates is no less than 3 times, is no less than 20s at every turn.

Top, anchor recess hole mortar is difficult for filling up, and must note many chargings; Must guarantee the anchor bolt abundant compacting of mortar on every side; After sealing off and covering anchorage is finished, must guarantee that combining closely, do not have the naked eyes visible gap with anchor recess around the sealing off and covering anchorage anchor body surface layer exists.

Environment temperature when the sealing off and covering anchorage mortar tamps must be 5～35 ℃, and the sealing off and covering anchorage mortar temperature must be 5～30 ℃, when temperature on average round the clock is lower than 5 ℃ or the lowest temperature and is lower than-3 ℃, must take the insulation measure, and temperature retention time is no less than 24 hours.When outside factory building, carrying out sealing off and covering anchorage, avoid descending to carry out the sealing off and covering anchorage operation at sunlight direct projection, rain, snow and strong wind atmosphere as needs.

(14-6) visual examination

(14-61) the sealing off and covering anchorage moulding is closely knit, and finger pressure does not have significant change.

(14-62) the sealing off and covering anchorage molded surface is smooth, bright and clean, does not have obviously hole hole defect.

(14-63) sealing off and covering anchorage anchor body must be combined closely no naked eyes visible crack all around with anchor recess.

(14-64) the recessed track plate anchor recess case depth palpus≤4mm of sealing off and covering anchorage molded surface.

(15) pond health

Behind the track plate tensioning anchor seal, enter the maintenance of water sample pond, curing time seven days, 15 ℃ of maintenance water temperatures.Water is supported the pond and is arranged in the factory building workshop, uses the drinking water maintenance, in the time of can not meeting the demands as water temperature in winter, adopts Steam Heating to handle, and guarantees that water temperature remains on 15 ℃.

After sealing off and covering anchorage construction is finished, can carry out soaked maintenance more than 2 hours, guarantee that simultaneously before soaked, the sealing off and covering anchorage mortar has had certain intensity, when soaked, not have peeling off, fall situation such as slag and take place.Track plate in the pond stands up, isolate with the batten of 30*50*2000mm between track plate and the track plate, block above being stuck in the U type of band steel or reinforcement fabrication again, U type card will brush antirust paint in order to avoid the pollution plate body that gets rusty in water, and the track plate when batten and U type card prevent entry and water outlet bumps and damages plate body and topple over.Each water is supported pond installation digital display thermometer and is reacted water temperature intuitively, and water temperature is controlled.

(16) depositing the plate district deposits

Pond health to the seven days lifts to be provided with to the factory building and deposits on the pallet seat temporarily, treats the plate surface attachment water room that can dispatch from the factory after air-dry.

(17) track slab loading and unloading, deposit plate and transportation

(17-1) track slab loading and unloading

(17-11) boatswain chair must have enough safety coefficients with steel wire rope, must not use when steel wire rope has the defective that influences bearing capacity again.

The lifting of track plate adopts special-purpose upending frame to carry out lifting operation, operating personnel want regular lifting appliance, facility are carried out safety inspection (as: the whether bending of lifting nut, cracking, stripped thread, lifting steel wire rope be fracture of wire or serious wear whether, and it is unsecured etc. that the mechanical performance of purlin car has).

(17-12) hanging bolt of track plate could begin slinging work after must fully tightening.

(17-13) in the track plate upset operation, adopt special-purpose turnover panel frame and lifting machinery to carry out, guarantee that the track panel edges is injury-free, the track plate position that contacts with ground must be filled up with the hardwood more than the 10cm.

(17-14) lifting of track plate must keep the plate body level, and slowly carries out.Must there be operating personnel holding up plate body in the hoisting process, so that grasp the traffic direction of track plate, the track plate is not vibrated and collide.

(17-15) the vehicle floor center line in length and breadth that draws earlier before the entrucking is that bound pair claims to load with the cross central line.

(17-16) whenever folded track plate will overlap to center line in length and breadth, its line projection of longitudinal center overlaps substantially with the vertical center line of car bottom plate, Deviation Control and adopts steel wire rope to reinforce in ± 20mm, guarantees not relatively move between transportation middle orbit plate and haulage vehicle.

(17-17) must note the entrucking order of different templates during entrucking, guarantee that entrucking order and scene lay sequence consensus.

(17-2) track plate transportation

(17-21) transportation the time must take to prevent that the track plate from toppling over the corresponding measure with three-point support, and guarantees that the track plate is not subjected to excessive impact.

(17-22) the track plate be transported to construction site deposit a little temporarily after, adopt crane to be equipped with special-purpose 4 suspenders and carry out the monolithic loading and unloading, forbid collision.

(17-23) between transportation middle orbit plate, rise with lumps of wood pad.When preventing snub, the track plate damages because of slip causes plate body in transportation, and available straw screen or mat is protected as the filling liner.

(17-24) the track plate must locate to install corresponding protector at setscrew nut and lifting nut etc. when depositing and transport.

(17-3) the track plate is deposited

(17-31) the track plate keeps flat

A, temporarily deposit be provided with a little that bearing capacity meets the demands deposit the pallet seat, must not produce differential settlement.

When B, track plate keep flat (deposit temporarily and be not more than 7 days), stack the number of plies and be no more than 4 layers, and adopt chock to prop up pad between layer and the layer, supporting point position lays respectively at pre-buried lifting sleeve place, it is firm, smooth to deposit the requirement of track plate base, forbids to occur the supported at three point phenomenon.

(17-32) the track plate stands up

It is principle that A, track plate are deposited vertically to stand up, and takes the anti-measure of toppling over.

B, deposit the pallet seat require firm, smooth, and require on pedestal, to lay rubber blanket, injury-free to guarantee track edges of boards angle.

C, topple at the track plate, connect with special-purpose jockey (connecting bolt, U type card etc.) between the adjacent orbit plate for preventing.

D, P4962, P4856, three kinds of track plates of P4856A can adopt identical position of the fulcrum unification to deposit when the track plate was deposited, and P3685 deposits separately, and position of the fulcrum is track plate lifting position.

E, for ease of maintenance with prevent that the track plate from polluting, must cover geotextiles etc. as safeguard procedures.

(17-4) quality control

(17-41) entrucking is in stable condition, bundlees solidly, and track sheetpile sign indicating number is neat.

(17-42) visual examination entrucking state and pile situation check with pulling whether binding is firm.

It is firm, smooth (17-43) to deposit the requirement of track plate base, forbids to occur the supported at three point phenomenon.Whether adopt connecting bolt or U type to stick into row connects.

(17-44) whether anti-tipping apparatus is set.

Embodiment 2

The prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of present embodiment is in hot weather construction, and temperature is higher than 5 ℃, comprises the steps (process chart is as shown in Figure 2):

(1) establishment framework of steel reinforcement;

(2) framework of steel reinforcement is installed in the punching block, is coated with interleaving agent in the described punching block and service sleeve is installed;

(3) wear PC rod iron, peace anchor plate: adopt the patent No. be in 200920302254.3 disclosed railway plate die PC rod iron locate fast, set bolt, can realize fast quick and precisely locating with fastening when PC rod iron and anchor plate are installed, and can when the dismounting mould, realize fast quick-detach, the needs of realized fast, efficiently constructing.It has simple in structure, the characteristics that effect is high; Single PC rod iron is no more than 1 minute positioning time;

(4) PC rod iron pretension;

(5) lifting nut, spiral bar and ground terminal nut are installed;

(6) megger test;

(7) concrete perfusion, vibration;

(8) wipe one's face;

(9) steam curing;

(10) dismounting built-in fitting set bolt;

(11) demoulding: the CRTS I template formula non-fragment orbit concrete railway board that tentatively is prefabricated into after the demoulding, clear up built-in fitting, cleaning masterplate, matched moulds then and in punching block, spray interleaving agent and service sleeve is installed standby;

(12) upset and checking the configuration: the CRTS I template formula non-fragment orbit concrete railway board that obtains in the overturning step (11), and check its profile, outward appearance;

(13) prestressed stretch-draw;

(14) sealing off and covering anchorage;

(15) pond health;

(16) depositing the plate district deposits;

(17) spray maintenance.

Steam curing in the step (9) comprises following four-stage:

(a) rest the stage: the workshop temperature remains on 5 ℃, and the time is 3 hours;

(b) temperature rise period: per hour 15 ℃ of programming rates;

(c) the constant temperature stage: present embodiment is in summer, and vapor (steam) temperature is no more than 42 ℃ during constant temperature, and CRTS I template formula non-fragment orbit concrete railway board plate body core concrete temperature is 55 ℃, and constant temperature time is 6 hours;

(d) temperature-fall period: per hour 15 ℃ of cooling rates.

Pond health in the step (15): curing time is three days, and the maintenance water temperature is 5 ℃.

Spray maintenance in the step (17): the track plate that water is supported after finishing adopts the method for spray maintenance, and adopts the combined type geomembrane that lid is carried out on the concrete surface, makes concrete keep needed proper temperature of cement aquation and damp condition in the regular hour.Depositing plate district environment temperature is 6 ℃, and curing time is four days, and CRTS I template formula non-fragment orbit concrete railway board surface is in dampness, and curing water and CRTS I template formula non-fragment orbit concrete railway board surface temperature difference are 15 ℃.Carry out by following provisions:

After A, the pond maintenance of track plate finish, be transported to and deposit the plate district and spray maintenance, before concrete obtains normal hardenability, must keep moisture state by orbit keeping plate face.

B, deposit plate after, cover watering, curing time four days covers the watering frequency to guarantee guaranteeing that concrete surface is in dampness and is as the criterion during the concrete curing.

C, at any curing time, curing water and plate body surface temperature difference must not be greater than 15 ℃.

D, when summer temperature is higher, can set up above the plate district heat-shielding shedly depositing, avoid the sunshine direct projection for reducing the inside and outside temperature difference of plate body.

In the step (1): in order to guarantee the reinforcing bar binding precision, the plate body framework of steel reinforcement carries out overall binding on steel bar binding clamping fixture, steel bar binding clamping fixture adopts pine to make, and reinforcing bar binding is finished and is transported to the concrete pouring district and hangs up the respective identification board after qualified on inspection, utilizes purlin car integral hoisting to go into mould.Shown in Fig. 4～6, steel bar binding clamping fixture comprises side plate 100, base plate 200, vertical lumps of wood 300, the horizontal lumps of wood 400 and support frame 500, wherein, side plate 100 and base plate 200 constitute groove, vertically the lumps of wood 300 and the horizontal lumps of wood 400 are arranged on the interior base plate 200 of described groove crisscrossly, vertically the lumps of wood 300 and the horizontal lumps of wood 400 all have a plurality of draw-in grooves 600 that are used to snap in reinforcing bar and position, and support frame 500 is arranged on the below of described groove.Wherein, vertically the lumps of wood 300 and laterally the difference in height of the upper surface of the lumps of wood 400 equal the diameter of the reinforcing bar that will fix.Vertically the number of the lumps of wood 300 is 9, and laterally the number of the lumps of wood 400 is 5.Using method is as follows: reinforcing bar after the size blanking, is placed in the draw-in groove of reinforcing bar mold by the drawing position respectively in accordance with regulations, fixes, and after all reinforcement installation are in place, carries out the steel bar overall lifting.By field practice, reinforcing bar satisfies the standard required precision in the plate of this equipment colligation, helps improving reinforcing bar binding efficient.In work progress, use steel bar binding clamping fixture to carry out plate body laid reinforcement binding and in place, can accurately fix various reinforcing bar position on the one hand, be convenient to workmen's construction of cooperating on the other hand, improved efficiency of construction; The reinforcing bar position error can be controlled in the 2mm, and the single reinforced mesh colligation time is no more than 1 hour.

Embodiment 3

The prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of present embodiment is in hot weather construction, and temperature is higher than 5 ℃, comprises the steps (process chart is as shown in Figure 2):

(1) establishment framework of steel reinforcement;

(2) framework of steel reinforcement is installed in the punching block, is coated with interleaving agent in the described punching block and service sleeve is installed;

(3) wear PC rod iron, peace anchor plate: adopt the patent No. be in 200920302254.3 disclosed railway plate die PC rod iron locate fast, set bolt, can realize fast quick and precisely locating with fastening when PC rod iron and anchor plate are installed, and can when the dismounting mould, realize fast quick-detach, the needs of realized fast, efficiently constructing.It has simple in structure, the characteristics that effect is high; Single PC rod iron is no more than 1 minute positioning time;

(4) PC rod iron pretension;

(5) lifting nut, spiral bar and ground terminal nut are installed;

(6) megger test;

(7) concrete perfusion, vibration;

(8) wipe one's face;

(9) steam curing;

(10) dismounting built-in fitting set bolt;

(11) demoulding: the CRTS I template formula non-fragment orbit concrete railway board that tentatively is prefabricated into after the demoulding, clear up built-in fitting, cleaning masterplate, matched moulds then and in punching block, spray interleaving agent and service sleeve is installed standby;

(12) upset and checking the configuration: the CRTS I template formula non-fragment orbit concrete railway board that obtains in the overturning step (11), and check its profile, outward appearance;

(13) prestressed stretch-draw;

(14) sealing off and covering anchorage;

(15) pond health;

(16) depositing the plate district deposits;

(17) spray maintenance.

Steam curing in the step (9) comprises following four-stage:

(a) rest the stage: the workshop temperature remains on 30 ℃, and the time is 4 hours;

(b) temperature rise period: per hour 10 ℃ of programming rates;

(c) the constant temperature stage: present embodiment is in the winter time, and vapor (steam) temperature is no more than 40 ℃ during constant temperature, and CRTS I template formula non-fragment orbit concrete railway board plate body core concrete temperature is 40 ℃, and constant temperature time is 5 hours;

(d) temperature-fall period: per hour 10 ℃ of cooling rates.

Pond health in the step (15): curing time is four days, and the maintenance water temperature is 10 ℃.

Spray maintenance in the step (17): depositing plate district environment temperature is 7 ℃, curing time is five days, CRTS I template formula non-fragment orbit concrete railway board surface is in dampness, and curing water and CRTS I template formula non-fragment orbit concrete railway board surface temperature difference are 10 ℃.

In the step (1): in order to guarantee the reinforcing bar binding precision, the plate body framework of steel reinforcement carries out overall binding on steel bar binding clamping fixture, steel bar binding clamping fixture adopts pine to make, and reinforcing bar binding is finished and is transported to the concrete pouring district and hangs up the respective identification board after qualified on inspection, utilizes purlin car integral hoisting to go into mould.Shown in Fig. 4～6, steel bar binding clamping fixture comprises side plate 100, base plate 200, vertical lumps of wood 300, the horizontal lumps of wood 400 and support frame 500, wherein, side plate 100 and base plate 200 constitute groove, vertically the lumps of wood 300 and the horizontal lumps of wood 400 are arranged on the interior base plate 200 of described groove crisscrossly, vertically the lumps of wood 300 and the horizontal lumps of wood 400 all have a plurality of draw-in grooves 600 that are used to snap in reinforcing bar and position, and support frame 500 is arranged on the below of described groove.Wherein, vertically the lumps of wood 300 and laterally the difference in height of the upper surface of the lumps of wood 400 equal the diameter of the reinforcing bar that will fix.Vertically the number of the lumps of wood 300 is 9, and laterally the number of the lumps of wood 400 is 5.Using method is as follows: reinforcing bar after the size blanking, is placed in the draw-in groove of reinforcing bar mold by the drawing position respectively in accordance with regulations, fixes, and after all reinforcement installation are in place, carries out the steel bar overall lifting.By field practice, reinforcing bar satisfies the standard required precision in the plate of this equipment colligation, helps improving reinforcing bar binding efficient.In work progress, use steel bar binding clamping fixture to carry out plate body laid reinforcement binding and in place, can accurately fix various reinforcing bar position on the one hand, be convenient to workmen's construction of cooperating on the other hand, improved efficiency of construction; The reinforcing bar position error can be controlled in the 2mm, and the single reinforced mesh colligation time is no more than 1 hour.

Embodiment 4

The prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of present embodiment is to construct in the winter time, and temperature is lower than 5 ℃, comprises the steps (process chart is as shown in Figure 2):

(1) establishment framework of steel reinforcement;

(2) framework of steel reinforcement is installed in the punching block, is coated with interleaving agent in the described punching block and service sleeve is installed;

(3) wear PC rod iron, peace anchor plate: adopt the patent No. be in 200920302254.3 disclosed railway plate die PC rod iron locate fast, set bolt, can realize fast quick and precisely locating with fastening when PC rod iron and anchor plate are installed, and can when the dismounting mould, realize fast quick-detach, the needs of realized fast, efficiently constructing.It has simple in structure, the characteristics that effect is high; Single PC rod iron is no more than 1 minute positioning time;

(4) PC rod iron pretension;

(5) lifting nut, spiral bar and ground terminal nut are installed;

(6) megger test;

(7) concrete perfusion, vibration;

(8) wipe one's face;

(9) steam curing;

(10) dismounting built-in fitting set bolt;

(11) demoulding: the CRTS I template formula non-fragment orbit concrete railway board that tentatively is prefabricated into after the demoulding, clear up built-in fitting, cleaning masterplate, matched moulds then and in punching block, spray interleaving agent and service sleeve is installed standby;

(12) upset and checking the configuration: the CRTS I template formula non-fragment orbit concrete railway board that obtains in the overturning step (11), and check its profile, outward appearance;

(13) prestressed stretch-draw;

(14) sealing off and covering anchorage;

(15) pond health;

(16) depositing the plate district deposits;

(17) spray maintenance.

Steam curing in the step (9) comprises following four-stage:

(a) rest the stage: the workshop temperature remains on 15 ℃, and the time is 6 hours;

(b) temperature rise period: per hour 6 ℃ of programming rates;

(c) the constant temperature stage: present embodiment is in the winter time, and vapor (steam) temperature is no more than 25 ℃ during constant temperature, and CRTS I template formula non-fragment orbit concrete railway board plate body core concrete temperature is 20 ℃, and constant temperature time is 4 hours;

(d) temperature-fall period: per hour 6 ℃ of cooling rates.

Pond health in the step (15): curing time is eight days, and the maintenance water temperature is 15 ℃.

In the step (1): in order to guarantee the reinforcing bar binding precision, the plate body framework of steel reinforcement carries out overall binding on steel bar binding clamping fixture, steel bar binding clamping fixture adopts pine to make, and reinforcing bar binding is finished and is transported to the concrete pouring district and hangs up the respective identification board after qualified on inspection, utilizes purlin car integral hoisting to go into mould.Shown in Fig. 4～6, steel bar binding clamping fixture comprises side plate 100, base plate 200, vertical lumps of wood 300, the horizontal lumps of wood 400 and support frame 500, wherein, side plate 100 and base plate 200 constitute groove, vertically the lumps of wood 300 and the horizontal lumps of wood 400 are arranged on the interior base plate 200 of described groove crisscrossly, vertically the lumps of wood 300 and the horizontal lumps of wood 400 all have a plurality of draw-in grooves 600 that are used to snap in reinforcing bar and position, and support frame 500 is arranged on the below of described groove.Wherein, vertically the lumps of wood 300 and laterally the difference in height of the upper surface of the lumps of wood 400 equal the diameter of the reinforcing bar that will fix.Vertically the number of the lumps of wood 300 is 9, and laterally the number of the lumps of wood 400 is 5.Using method is as follows: reinforcing bar after the size blanking, is placed in the draw-in groove of reinforcing bar mold by the drawing position respectively in accordance with regulations, fixes, and after all reinforcement installation are in place, carries out the steel bar overall lifting.By field practice, reinforcing bar satisfies the standard required precision in the plate of this equipment colligation, helps improving reinforcing bar binding efficient.In work progress, use steel bar binding clamping fixture to carry out plate body laid reinforcement binding and in place, can accurately fix various reinforcing bar position on the one hand, be convenient to workmen's construction of cooperating on the other hand, improved efficiency of construction; The reinforcing bar position error can be controlled in the 2mm, and the single reinforced mesh colligation time is no more than 1 hour.

The prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board of the present invention has following beneficial technical effects among the above embodiment 1 to embodiment 4: cooperation between each operation, form continuous productive process, can finish the productive target of a circulation in 24 hours; Automatic blanking machine is adopted in the reinforcing bar blanking, and cutting stock precision is controlled in the 1mm, blanking efficient height; The automatic distributing machine is adopted in the concrete perfusion, and cloth is even, and the vibration of vibrator side, concrete density height are adopted in vibration; Automatic temperature control equipment is adopted in steam curing, and the outer maintenance humidity of factory building adopts automatic sprinkler fire-extinguishing system control, and the temperature humidity Monitoring and Controlling is convenient; Amount of labour demanded is reduced to 5 people by average 6.3 people of single form, and the human factor influence reduces greatly; Plate end check line is the product quality common fault, and the present invention has thoroughly solved plate end check line problem by the control temperature.Make the CRTS I template formula non-fragment orbit concrete railway board of producing and be applicable to 350 kilometers passenger dedicated railway lines of speed per hour, be particularly useful for the prefabricated production of CRTS I template formula non-fragment orbit concrete railway board of severe cold area.The CRTS I template formula non-fragment orbit concrete railway board that utilizes the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board in the foregoing description to produce can guarantee durability, ride comfort and the comfortableness of high-speed railway, adopt the construction of batch production streamline, high-quality and efficient, guarantee track plate precision, satisfy the high-speed railway requirement; The full-automatic reinforcing bar machining production line is adopted in bar cutting, bending, has guaranteed the processing dimension and the angle of bend of reinforcing bar; Reinforcing bar binding carries out on wooden mold, has guaranteed that bar spacing and protective layer thickness are accurate, and has guaranteed that the coating of process of binding floating coat reinforcing bar is unlikely to because friction damage.Mixing plant adopts electronics metering and self-clocking system, has guaranteed concrete various raw-material ratio and concrete mixing time.The sandstone material adopts totally enclosed feed bin to store, and makes the stable of the not contaminated and sweat water content of sandstone material, has guaranteed that it deposits the temperature of quality and winter construction.Mould adopts the low distortion of the high accuracy combined steel in specialized factory's customization, and on the concrete frame ground that is fixed, has guaranteed that pre-track plate 1mm is with interior required precision.Adopt full-automatic attemperating unit to the track plate steam curing carry out temperature control, guaranteed the temperature and the steam-cured time in steam-cured each stage.Anchor recess cutter cant formula changes the mode of pre-buried rubber strip into by traditional pneumatic pick machinery cutter hair, and the machinery of avoiding cutter hair has guaranteed that also the degree of depth and the roughened surface of cutter hair is long-pending, for solid foundation has been established in the raising of track plate sealing off and covering anchorage quality to the concrete adverse effect of plate body.Adopt full-automatic tensioning equipment that the track plate is applied prestressing force, guaranteed the accuracy of tension stress and elongation, avoid the influence of human error.The finished product siccative that the sealing off and covering anchorage mortar uses specialized factory to produce has been guaranteed stablizing and the sealing off and covering anchorage quality of its every performance indications.Built the water that is used for the early stage health of track plate and support the pond in workshop, track plate tensioning anchor seal is finished laggard entry and is supported the pond maintenance, has accelerated the growth of track plate early strength, has improved production efficiency and has saved the place.The lifting, the concrete that adopt 10 tons of purlins to lift up into capable framework of steel reinforcement in the workshop are gone into operations such as mould cloth, the lifting of track plate, transportation, turnover panel, ejecting plate, effectively raise the space availability ratio in workshop, make unobstructed the carrying out of streamlined operation in whole workshop.

Claims (10)

1.CRTS the prefabricated worker's method of I template formula non-fragment orbit concrete railway board is characterized in that, comprises the steps:

(1) establishment framework of steel reinforcement;

(2) framework of steel reinforcement is installed in the punching block, is coated with interleaving agent in the described punching block and service sleeve is installed;

(3) wear PC rod iron, peace anchor plate;

(4) PC rod iron pretension;

(5) lifting nut, spiral bar and ground terminal nut are installed;

(6) megger test;

(7) concrete perfusion, vibration;

(8) wipe one's face;

(9) steam curing;

(10) dismounting built-in fitting set bolt;

(11) demoulding: the CRTS I template formula non-fragment orbit concrete railway board that tentatively is prefabricated into after the demoulding, clear up built-in fitting, cleaning masterplate, matched moulds then and in punching block, spray interleaving agent and service sleeve is installed standby;

(12) upset and checking the configuration: the CRTS I template formula non-fragment orbit concrete railway board that obtains in the overturning step (11), and check its profile, outward appearance;

(13) prestressed stretch-draw;

(14) sealing off and covering anchorage;

(15) pond health;

(16) depositing the plate district deposits.

2. the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board according to claim 1 is characterized in that the steam curing in the step (9) comprises following four-stage:

(a) rest the stage: the workshop temperature remains on 5-30 ℃, and the time is no less than 3 hours;

(b) temperature rise period: programming rate per hour is no more than 15 ℃;

(c) the constant temperature stage: vapor (steam) temperature is no more than 45 ℃ during constant temperature, and CRTS I template formula non-fragment orbit concrete railway board plate body core concrete temperature is no more than 55 ℃, and constant temperature time is no more than 6 hours;

(d) temperature-fall period: cooling rate per hour is no more than 15 ℃.

3. the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board according to claim 2 is characterized in that in the stage, winter, vapor (steam) temperature was no more than 40 ℃ at constant temperature, and summer, vapor (steam) temperature was no more than 42 ℃.

4. the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board according to claim 1, it is characterized in that the pond health in the step (15): curing time is more than three days, and the maintenance water temperature is not less than 5 ℃.

5. the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board according to claim 1, it is characterized in that, steel bar binding clamping fixture is adopted in the making of deformed bar net sheet in the step (1), comprise side plate (100), base plate (200), vertical lumps of wood (300), the horizontal lumps of wood (400) and support frame (500), wherein, side plate (100) and base plate (200) constitute groove, vertically the lumps of wood (300) and the horizontal lumps of wood (400) are arranged on the interior base plate (200) of described groove crisscrossly, vertically the lumps of wood (300) and the horizontal lumps of wood (400) all have a plurality of draw-in grooves (600) that are used to snap in reinforcing bar and position, and support frame (500) is arranged on the below of described groove.

6. the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board according to claim 5 is characterized in that, vertically the difference in height of the upper surface of the lumps of wood (300) and the horizontal lumps of wood (400) equals the diameter of the reinforcing bar that will fix.

7. the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board according to claim 6 is characterized in that, vertically the number of the lumps of wood (300) and the horizontal lumps of wood (400) is respectively 2～10.

8. the prefabricated worker's method of CRTS I template formula non-fragment orbit concrete railway board according to claim 1 is characterized in that, the middle use of described step (3) railway plate die PC rod iron is located fast, set bolt.

9. according to the prefabricated worker's method of the arbitrary described CRTS I template formula non-fragment orbit concrete railway board of claim 1 to 8, it is characterized in that, when temperature is higher than 5 ℃, also spray maintenance afterwards in step (16): spray curing time four is with the Heaven, CRTS I template formula non-fragment orbit concrete railway board surface is in dampness, and curing water and CRTS I template formula non-fragment orbit concrete railway board surface temperature difference are not more than 15 ℃.

10. according to the prefabricated worker's method of the arbitrary described CRTS I template formula non-fragment orbit concrete railway board of claim 1 to 8, it is characterized in that, when temperature was lower than 5 ℃, the pond health in the step (15): curing time was more than seven days, and the maintenance water temperature is not less than 5 ℃.

Images