CN113737595B

CN113737595B - Road repairing construction process

Info

Publication number: CN113737595B
Application number: CN202111144963.5A
Authority: CN
Inventors: 陶聿君; 田守伟; 李宗彦; 李晓强; 唐南川
Original assignee: Guangdong Yixin Great Wall Construction Group Co ltd
Current assignee: Guangdong Yixin Great Wall Construction Group Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-07-05
Anticipated expiration: 2041-09-28
Also published as: CN113737595A

Abstract

The invention discloses a road repairing construction process, which comprises the steps of firstly constructing a cement stabilized macadam base layer on a soil layer to enhance the strength, impermeability and frost resistance of a foundation, and then placing a prefabricated reinforcing mesh on the cement stabilized macadam base layer to enhance the structural strength of a subsequent concrete layer. After the reinforcing bar net was arranged, lay the guide rail in construction road both sides, to pave the device and place between two sets of guide rails, the concrete is emptyd in the hopper from the trucd mixer, then in getting into down the feed bin, the feed bin is covered with down to the concrete under spiral distributing device's effect, then discharge and the equipartition on cement stabilization rubble basic unit from the bottom in feed bin again to need not the manual work and carry out preliminary flattening, not only improved the efficiency of construction, but also reduced staff intensity of labour.

Description

Road repairing construction process

Technical Field

The invention relates to the technical field of road construction, in particular to a road repairing construction process.

Background

The urban underground drainage pipeline needs to be maintained after being used for a long time, and common drainage pipeline maintenance methods comprise an open cut method and a non-cut pipeline repair method. The open excavation method is to break the road surface above the damaged pipeline and then repair the pipeline, and is mainly used for repairing drainage pipes in villages and towns.

When the open excavation method is adopted to repair the pipeline, the road surface needs to be restored again so as to perfect the road network of the block area. When the pavement is a reinforced concrete pavement, the concrete is often poured on the reinforcing mesh by a mixer truck, then the concrete is primarily leveled manually, and then the concrete is leveled by a three-shaft paver as the reinforcing mesh is required to be paved and then the cement is paved in the repairing process. However, the construction efficiency is low by adopting a manual preliminary leveling mode, so that the road repairing progress is influenced. Therefore, there is room for improvement.

Disclosure of Invention

In order to improve the road repairing efficiency, the application provides a road repairing construction process.

The application provides a road restoration construction process adopts following technical scheme:

a road repairing construction process comprises the following steps:

s1, backfilling a soil layer on the excavated road section and rolling the backfilled soil layer;

s2, constructing a cement stabilized macadam foundation;

s3, constructing the concrete layer pavement, which comprises the following steps:

s31, construction lofting, and determining the construction elevation of the concrete layer;

s32, placing a reinforcing mesh;

s33, arranging dowel bars and transverse formworks at the joints of the two adjacent groups of reinforcing meshes;

s34, paving a concrete layer: paving guide rails on two sides of the length direction of the construction road, placing the paving device between the two groups of guide rails, enabling concrete to fall into a hopper of the paving device from a discharge end of the mixer truck, enabling the concrete to be fully distributed in a blanking bin under the action of a spiral distributor and then to fall out of the blanking bin, wherein the length of the blanking bin is matched with the design width of the construction road;

s35, vibrating;

s36, plastering and embossing;

s4, removing the formwork and constructing an expansion joint;

and S5, maintaining.

By adopting the technical scheme, after the underground pipeline is repaired, a soil layer is backfilled to cover the pipeline, and then the cement stabilized macadam base layer is constructed to enhance the strength, impermeability and frost resistance of the base so as to facilitate the subsequent construction of a concrete layer. After the construction of the cement stabilized macadam base layer is completed, determining the construction elevation of the concrete layer, and placing a prefabricated reinforcing mesh on the cement stabilized macadam base layer to enhance the structural strength of the subsequent concrete layer. After the reinforcing mesh is arranged, a dowel bar and a transverse template are arranged, the dowel bar is used for enhancing the connection strength of two adjacent concrete slabs, and the transverse template is convenient for paving a concrete layer and is used for generating an expansion joint. Then lay the guide rail in construction road length direction both sides, place the device that paves between two sets of guide rails, the concrete is emptyd in the hopper from the trucd mixer, then get into down in the feed bin, the feed bin is covered with down to the concrete under spiral distributor's effect, then discharge from the bottom of feed bin down, the concrete material is along the width direction evenly distributed of construction road on cement stabilization rubble basic unit, thereby need not the manual work and carry out preliminary flattening, construction efficiency has not only been improved, but also staff intensity of labour is reduced. The paving device advances while blanking, and then the concrete layer is leveled by using a vibrating machine. And after the concrete layer is leveled, plastering and embossing treatment are carried out to finish the construction of the concrete layer. And when the strength of the concrete layer reaches the form removal strength, removing the form, constructing the expansion joint, and then maintaining the road regularly, namely completing the road repair work.

Preferably, the paving device comprises a frame erected between two side guide rails, a feeding bin and a plurality of rolling shafts, wherein the feeding bin and the rolling shafts are installed on the frame, a hopper is arranged at the top of the feeding bin, a feeding hole is formed in the bottom of the feeding bin along the length direction of the feeding bin, a baffle is hinged to the feeding hole, and a driving piece for driving the baffle to rotate is installed on the outer wall of the feeding bin; the spiral distributing device is arranged in the blanking bin and comprises a transmission rod and spiral blades wound on the transmission rod in a spiral mode, and the spiral blades spirally extend from the middle of the transmission rod towards two ends in a spiral mode along opposite directions.

Through adopting above-mentioned technical scheme, before carrying out concrete paving, drive the baffle through the driving piece and rotate in order to shutoff feed opening. After the concrete material fell to in the feed bin, the concrete material moved down feed bin both ends under the effect of spiral distributing device to be covered with whole feed bin down. After the materials in the feeding bin are accumulated to a certain depth, the opening and closing degree of the baffle plate is controlled according to the paving height of the concrete layer and the advancing speed of the paving device, so that the feeding amount of the concrete is controlled, and the design elevation requirement of the concrete layer is met. The device that paves advances in step at the in-process of unloading, and the concrete material that falls on cement stabilized macadam basic unit is preliminary flattening under the rolling effect of many roller bearings to convenient follow-up carry out the secondary flattening to concrete layer, be favorable to improving the efficiency of construction.

Preferably, be provided with belt cleaning device in the feed bin down, belt cleaning device includes the scraper blade, the shape of scraper blade matches with the cross sectional shape of feed bin down, the length direction and the feed bin sliding connection of feed bin are followed to the scraper blade, the feed bin is provided with the control assembly that the control scraper blade removed down.

Through adopting above-mentioned technical scheme, after the device work a period of time that paves, need clear up the feed bin to make the material that adheres to on the concrete inner wall can not solidify, be favorable to guaranteeing concrete layer's shaping quality. When feed bin when needs clearance, control assembly drives the scraper blade and removes, and the scraper blade will be attached to the concrete material on feed bin inside wall down and scrape down at the removal in-process to the material concreties.

Preferably, control assembly is including setting up reciprocal lead screw and the guide bar in feed bin down, reciprocal lead screw and guide bar all pierce through the scraper blade, the both ends of feed bin are worn out down respectively and are connected with feed bin rotation through sealed bearing at the both ends of reciprocal lead screw, be connected with on the reciprocal lead screw rather than complex screw-nut, screw-nut inlays in the scraper blade.

Through adopting above-mentioned technical scheme, when the scraper blade was ordered about to needs and removed, rotated reciprocal lead screw, the guide bar plays the guide effect to the scraper blade to drive the scraper blade through screw-nut and be reciprocating motion along the length direction of past multifilament pole, with this clearance to the feed bin inside wall of realization.

Preferably, can dismantle in the feed bin down and be connected with two baffles, the tip of feed bin down is all worn out to the one end of baffle, the other end and the scraper blade of baffle are pegged graft, and two baffles form with the feed bin and are used for holding the first chamber that holds of reciprocal lead screw and the second that is used for holding the guide bar and hold the chamber.

Through adopting above-mentioned technical scheme, the setting of baffle, when being covered with the material in the feed bin, reciprocal lead screw and guide bar can not be infected with the concrete material to ensure that follow-up scraper blade can smoothly remove. When feed bin under needs clearance, take the baffle out, the baffle is at the in-process that feed bin removed relatively, and the concrete material of adhering to on the baffle drops voluntarily, then orders about the scraper blade through control assembly and remove can.

Preferably, the one end of scraper blade articulates there is the scraping strip, the one side sunken recess that the scraping strip is close to the baffle, it has magnet to inlay in the recess, magnet does not bulge the recess setting.

Through adopting above-mentioned technical scheme, the setting of magnet for scrape the strip and paste tight baffle all the time, thereby make and scrape the strip and can not obstruct the baffle rotation. Simultaneously, because of the setting of magnet non-protrusion recess for magnet can not weaken the adsorption affinity between scraping strip and the baffle with baffle direct contact, and reduce magnet wearing and tearing, make to scrape the strip and can also follow scraper blade synchronous motion under the condition of pasting tight baffle, thereby will depend on the material on the baffle and scrape down.

Preferably, the reciprocating screw rod is arranged in a hollow manner, one end of the reciprocating screw rod is arranged in a closed manner, the other end of the reciprocating screw rod is arranged in an open manner, the open end of the reciprocating screw rod is connected with the rotary joint, the peripheral wall of the reciprocating screw rod is provided with a plurality of drain holes, and the drain holes are communicated with the hollow portion of the reciprocating screw rod.

Through adopting above-mentioned technical scheme, after scraper blade, scraping the material that the strip will depend on the baffle are scraped, open the baffle, discharge the concrete material. Then the baffle is closed again, the rotary joint is externally connected with a water pipe and is filled with water, the reciprocating screw rod is rotated again, clear water is sprayed on the inner wall of the lower material bin and the spiral material distributor from the plurality of water drain holes, and the scraping strip and the scraper are matched to scrape and wash the inner wall of the lower material bin, so that the cleaning efficiency and the cleaning effect are improved. After water with a certain depth is accumulated in the feeding bin, the spiral distributing device can be driven to rotate so as to enhance the cleaning effect on the spiral distributing device.

Preferably, set up the logical groove that a plurality of confession dowel bars passed on the horizontal template, a plurality of logical grooves are along the length direction of horizontal template interval distribution side by side, lead to the groove and be the setting of U type and link up a side of horizontal template, one side fixedly connected with polylith shrouding of horizontal template, and a shrouding corresponds a logical groove, and the shrouding will lead to the groove part and seal in order to form the through-hole that supplies the dowel bar to pass.

Through adopting above-mentioned technical scheme, when demolising the horizontal template, pull down a plurality of shroudings from the horizontal template one by one, can take off the horizontal template from the dowel steel. After the transverse formwork is taken down, an expansion joint is formed between the two sections of concrete layers, so that the expansion joint does not need to be additionally constructed, and the construction efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of a concrete layer being constructed in the present application;

FIG. 2 is a schematic structural view of a cross template in the present application;

FIG. 3 is a schematic diagram of the internal structure of the blanking bin in the present application;

FIG. 4 is a schematic cross-sectional view of a blanking bin of the present application;

fig. 5 is a schematic view of the structure of the squeegee and the wiper strip in the present application.

Description of reference numerals:

1. a steel form; 2. a reinforcing mesh; 3. a dowel bar; 4. a transverse template; 5. closing the plate; 6. a through groove; 7. a guide rail; 8. a frame; 9. a roller; 10. discharging a bin; 11. a hopper; 12. a roller; 13. a drive assembly; 14. a baffle plate; 15. a hydraulic cylinder; 16. a spiral distributor; 161. a transmission rod; 162. a helical blade; 17. a direct current motor; 18. a squeegee; 19. controlling the motor; 20. a reciprocating screw rod; 21. a guide bar; 22. a partition plate; 23. scraping the strips; 24. a magnet; 25. a rotary joint.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a road repairing construction process. The method comprises the following steps:

and S1, backfilling soil layers on the excavated road sections and rolling.

S2, constructing the cement stabilized macadam foundation, which comprises the following steps:

and S21, construction lofting, and determining the paving elevation and width of the gravel base. Specifically, the method comprises the following steps:

and marking out edge lines of the cement-stabilized rubble layer on two sides of the road according to the paving width and the lime edge according to the middle line of the road to be repaired. And then, arranging indicating piles at every 10m of two sides of the road, marking the designed elevation of the edge of the cement stabilized gravel layer on the indicating piles by using obvious marks, and binding steel wire lines at the marked positions of two adjacent indicating piles, wherein the steel wire lines are kept tight.

S22, paving a cement stabilized macadam foundation, specifically:

before paving, the impurities on the roadbed are removed, and clear water is sprayed once to facilitate the combination of the upper layer and the lower layer. The loose paving coefficient of the cement stabilized macadam base is 1.3-1.35, material reduction or material supplement is carried out when necessary, and the vertical and horizontal sections of the paved cement stabilized macadam base are kept vertical and uniform in thickness.

And S23, leveling the cement stabilized macadam base layer by using a road roller.

and S31, construction lofting, and determining the construction elevation of the concrete layer. Specifically, the method comprises the following steps:

referring to fig. 1, steel formworks 1 are laid on two sides of the length of the cement stabilized macadam base according to the designed elevation of a road, elevation retesting is carried out after the steel formworks 1 are supported, and then the gap between the steel formworks 1 and the cement stabilized macadam base is filled by fine stone concrete so as to avoid slurry leakage.

S32, placing the reinforcing mesh 2. Specifically, the method comprises the following steps:

referring to fig. 1, the mesh reinforcement 2 is transported to a construction site after being prefabricated at a factory according to design requirements, and after the steel form 1 is completed to be erected, the mesh reinforcement 2 is placed between two sets of the steel forms 1.

S33, arranging dowel bars 3 and transverse formworks 4 at the joints of two adjacent groups of reinforcing meshes 2: specifically, referring to fig. 1, a plurality of dowel bars 3 are arranged at the joint of two adjacent sets of reinforcing steel bars side by side at intervals according to design requirements and are bound with a reinforcing mesh 2, then two transverse formworks 4 are sleeved on the plurality of dowel bars 3, and attention is paid to adjusting the gap between the two transverse formworks 4 to be 1 cm. Glue is smeared on the sealing plate 5, and then the sealing plate is placed in the accommodating groove to be fixedly bonded with the transverse template 4. And then coating a release agent on the inner sides of the steel template 1 and the transverse template 4 for subsequent release.

Referring to fig. 1 and 2, the thickness of the transverse formwork 4 is 5mm, and the thickness of the closing plate 5 is 2.5 mm. Set up a plurality of logical grooves 6 that supply dowel steel 3 to pass on the horizontal template 4, a plurality of logical grooves 6 are along horizontal template 4's length direction interval distribution side by side, lead to groove 6 and be the setting of U type and link up a side of horizontal template 4, and shrouding 5 is provided with the polylith, and a shrouding 5 corresponds a logical groove 6, and shrouding 5 partially seals logical groove 6 to make logical groove 6 form the through-hole that supplies dowel steel 3 to pass.

The opening edge of the through groove 6 is sunken to form a notch, the opening depth of the notch is slightly larger than the thickness of the sealing plate 5, and the opening depth of the notch is 3.5mm in the embodiment of the application, so that the sealing plate 5 can be tilted by a tool in the following process.

S34, paving a concrete layer, specifically:

referring to fig. 1, guide rails 7 are laid on both sides in the longitudinal direction of the construction road, and a paving apparatus is placed between the two sets of guide rails 7. And paving the concrete in sections. Specifically, the mixed concrete falls into a hopper 11 of the paving device from a discharge end of the mixer truck, the concrete is fully distributed in a blanking bin 10 under the action of a spiral distributor 16, and then falls out of the blanking bin 10, and the length of the blanking bin 10 is matched with the designed width of a construction road. After the concrete falls on the cement stabilized macadam base, the mixer truck drags the paving device to move forward, and meanwhile, the concrete is primarily leveled under the rolling of the plurality of rolling shafts 12. And then, laying the next section of concrete layer until the concrete layer is completely laid.

And S35, vibrating. Specifically, the method comprises the following steps:

after the concrete is paved, the concrete layer is vibrated by using the flat plate vibrator, the vibrator moves to the road from the road side in a row along the longitudinal direction during vibration, and the overlap surface of the lap at the front position and the back position is about 20cm when the flat plate is moved every time, so that the leakage vibration is avoided. Meanwhile, the vibration time at each position is generally 15s-25s, which is not too long, so that the concrete mixture is vibrated to be slurried without obvious reduction and bubbling, and the surface is uniform. The vibration rod is vertically and slowly drawn up and down when vibrating, and the moving distance is not more than 1.5 times of the action radius each time. The distance between the inserted vibrator and the steel template 1 and the transverse template 4 is generally about 10 cm. The inserted vibrator does not vibrate on the dowel bar 3 so as to avoid damaging concrete at the edge of the adjacent plate.

Leveling by a flat plate vibrator and a plug-in vibrator. And compacting and leveling by using a vibration tamping template. The two ends of the vibrating tamper template are placed on the steel templates 1 on the two sides during vibrating, and the vibrating tamper template is sequentially used as a basis for controlling the elevation of the pavement.

And S36, plastering and embossing. Specifically, the method comprises the following steps:

and (3) troweling the surface of the concrete layer by using a troweling machine, then artificially accelerating the surface of the concrete layer, and finally, the troweling machine has delicate requirements to eliminate sand holes so that the surface of the concrete plate meets the requirement of flatness. After the light is catalyzed, the surface of the concrete layer is embossed by an embossing machine so as to increase the friction force.

And S4, removing the formwork and performing expansion joint construction. Specifically, the method comprises the following steps:

and after the concrete layer reaches the form removal strength, removing the steel template 1 and the transverse template 4. When the transverse formwork 4 is dismounted, the plurality of sealing plates 5 are firstly dismounted one by using a tool, and then the transverse formwork 4 can be dismounted. After the transverse formwork 4 is detached, an expansion joint is formed between two adjacent concrete slabs. And (3) pouring asphalt mastic into the expansion joint, cleaning dust, sundries and the like in the joint before pouring, and pouring after the joint is completely dried.

And S5, maintaining. Specifically, the method comprises the following steps:

covering the surface of the concrete layer with the grass bag, regularly watering and maintaining, wherein pedestrians and vehicles cannot pass on the road surface during maintenance, and road repair is completed.

Referring to fig. 1, the paving device is installed gyro wheel 9 including erectting frame 8, the frame 8 between guide rail 7 of both sides, gyro wheel 9 slip joint in guide rail 7, and the trucd mixer passes through the chain to be connected in order to drive the paving device removal with frame 8 with the frame. The front end of the frame 8 is provided with a blanking bin 10, the blanking bin 10 is arranged in a cylindrical shape, and the length of the blanking bin 10 is matched with the width of the pavement to be repaired. The middle part of the top of the blanking bin 10 is provided with a hopper 11, and the hopper 11 is communicated with the inside of the blanking bin 10. The discharge port of the mixer truck is connected with a material conveying groove, and one end of the material conveying groove, which is far away from the mixer truck, is inclined downwards and is suspended above the hopper 11.

Referring to fig. 1, a plurality of rollers 12 are mounted on the frame 8, and three rollers 12 are provided in the embodiment of the present application, and in other embodiments, the number of rollers 12 may be other. The three rollers 12 are all located at the rear end of the frame 8, the three rollers 12 are arranged in parallel at intervals, and the axes of the three rollers 12 are located in the same horizontal plane. The frame 8 is provided with a driving component 13 which drives the three rollers 12 to synchronously rotate.

The driving assembly 13 comprises a driving motor, an output shaft of the driving motor is in transmission connection with one of the rollers 12 through a speed reducer, and the three rollers 12 are in transmission connection through a synchronous belt mechanism.

Referring to fig. 3 and 4, a feed opening is formed in the bottom of the feed bin 10 along the length direction of the feed bin, a baffle 14 is arranged on one side of the feed opening, the baffle 14 is hinged to the feed bin 10, and a driving member for driving the baffle 14 to rotate is mounted on the outer wall of the feed bin 10. The driving piece is a hydraulic cylinder 15, a fixing plate is fixedly welded on the outer wall of the blanking bin 10, the cylinder body of the hydraulic cylinder 15 is hinged to the fixing plate, and the piston rod of the hydraulic cylinder 15 is hinged to the baffle 14. Through setting up baffle 14, be convenient for control the unloading volume of feed bin 10 down to be convenient for match concrete layer's settlement elevation.

Referring to fig. 3, the spiral distributor 16 is disposed in the lower bin 10, the spiral distributor 16 includes a transmission rod 161, and both ends of the transmission rod 161 penetrate through the lower bin 10 and are rotatably connected to the lower bin 10 through sealed bearings. One end of the blanking bin 10 is provided with a direct current motor 17, and an output shaft of the direct current motor 17 is in transmission connection with a transmission rod 161. The transmission rod 161 is wound with a spiral blade 162, and the spiral blade 162 spirally extends from the middle of the transmission rod 161 to the two ends in opposite directions.

Before the concrete is spread, the feed opening is closed by means of a baffle 14. Concrete material enters the lower silo 10 from the hopper 11 and the auger 16 is rotated so that the material moves towards both ends of the lower silo 10, thereby causing the material to flood the lower silo 10. After the materials accumulated in the blanking bin 10 reach a certain depth, the opening and closing degree of the baffle 14 is controlled by the hydraulic cylinder 15 according to the moving speed of the mixer truck, so that the requirement of the paving thickness of a concrete layer is met. Thereby need not the manual work and carry out preliminary flattening, not only improved the efficiency of construction, but also reduced staff intensity of labour.

Referring to fig. 3 and 4, a cleaning device is further provided in the lower silo 10. The cleaning device comprises a scraper 18, the scraper 18 is arranged in an annular shape, and the scraper 18 is arranged between the spiral distributor 16 and the inner side wall of the blanking bin 10. The shape of the scraper 18 is matched with the cross-sectional shape of the blanking bin 10, and the scraper 18 is connected with the blanking bin 10 in a sliding mode along the length direction of the blanking bin 10. The lower bin 10 is provided with a control assembly that controls the movement of the flight 18 back and forth along the length of the lower bin 10.

Referring to fig. 3 and 4, the control assembly includes a control motor 19 installed at one end of the lower bin 10, a reciprocating screw rod 20 disposed in the lower bin 10, and a guide rod 21. The reciprocating screw rod 20 and the guide rod 21 are both positioned at the upper part of the spiral distributor 16 and are symmetrically distributed at both sides of the spiral distributor 16. The reciprocating screw rod 20 and the guide rod 21 both penetrate through the scraper 18, the reciprocating screw rod 20 is connected with a screw rod nut matched with the reciprocating screw rod 20, and the screw rod nut is embedded in the scraper 18. Wherein, the guide bar 21 is welded and fixed with the lower feed bin 10, two ends of the reciprocating screw rod 20 respectively penetrate out of two ends of the lower feed bin 10 and are rotationally connected with the lower feed bin 10 through a sealing bearing, and an output shaft of the control motor 19 is in transmission connection with the reciprocating screw rod 20.

Referring to fig. 3 and 4, two partition plates 22 are detachably connected to the lower silo 10, and the partition plates 22 extend along the length direction of the lower silo 10. One end of the partition plate 22 penetrates through the end part of the lower storage bin 10, and the other end of the partition plate 22 is movably inserted with the scraper 18. One end of the lower bin 10, through which the partition plate 22 penetrates out, is fixedly connected with a mounting plate, and the partition plate 22 is connected with the mounting plate through bolts and nuts in a locking manner.

After the partition 22 is inserted into the discharging bin 10, the partition 22 abuts against the inner side wall of the discharging bin 10, and a gap is left between the partition 22 and the helical blade 162. The two partition plates 22 and the blanking bin 10 form a first accommodating cavity for accommodating the reciprocating screw rod 20 and a second accommodating cavity for accommodating the guide rod 21. The partition 22 separates the concrete material from the reciprocating screw 20 and the guide bar 21 so that the reciprocating screw 20 and the guide bar 21 do not adhere to the concrete, so that the subsequent screed 18 can be smoothly moved.

Referring to fig. 4 and 5, one end of the scraper 18 is hinged with a scraper bar 23, the width of the scraper bar 23 is the same as that of the scraper 18, and the scraper bar 23 and the scraper 18 form a closed ring. The scraping strip 23 is tightly attached to the baffle 14, one side, close to the baffle 14, of the scraping strip 23 is provided with a concave groove, the concave groove is circularly arranged, and the diameter of the concave groove is 4 cm. The magnet 24 is arranged in the groove, the shape of the magnet 24 is matched with that of the groove, the magnet 24 is embedded in the groove, and the magnet 24 does not protrude out of the groove. By limiting the size of the magnet 24, the scraper bar 23 can be stably attached to the baffle 14, and the adsorption force between the scraper bar 23 and the baffle 14 is not too strong, so that the scraper bar 23 can smoothly follow the scraper 18 to move synchronously, and the residual concrete material on the baffle 14 is scraped.

After the concrete layer is paved, the hydraulic cylinder 15 controls the baffle plate 14 to rotate so as to seal the feed opening. The driving motor operates to drive the spiral distributing device 16 to rotate, and the sticky materials on the spiral distributing device are thrown on the inner side wall of the lower storage bin 10 under the action of centrifugal force. Then, the bolts and nuts between the partition plate 22 and the mounting plate are removed. The partition 22 is pulled out, and the concrete material attached to the partition 22 automatically falls off during the movement of the partition 22 relative to the lower bin 10. The gap formed by removing the partition plate 22 with the cover plate is closed. After start control motor 19 rotates in order to order about reciprocal lead screw 20, scraper blade 18 along reciprocal lead screw 20's length direction round trip movement, scraper blade 18 synchronous motion is followed to the strickle 23 to scrape down the concrete material that will adhere to on lower feed bin 10 inside wall and on baffle 14, in order to avoid the material consolidation, thereby can not influence the later stage operation of paving, also make things convenient for the later stage to wash.

Referring to fig. 3, the reciprocating screw rod 20 is hollow, one end of the reciprocating screw rod 20 connected with the control motor 19 is closed, and the other end of the reciprocating screw rod 20 is provided with and connected with a rotary joint 25. The circumferential wall of the reciprocating screw rod 20 is provided with a plurality of drain holes, and the drain holes are communicated with the hollow part of the reciprocating screw rod 20.

After the scraper 18 and the scraper bar 23 scrape off the materials attached to the baffle plate 14, the baffle plate 14 is opened, and the concrete materials are discharged. Then the baffle plate 14 is closed again, the rotary joint 25 is externally connected with the water pipe and is communicated with water, the control motor 19 is started to drive the reciprocating screw rod 20 to rotate, clear water is sprayed on the inner wall of the lower storage bin 10 and the spiral distributor 16 from a plurality of water discharge holes, and the scraper 18 and the scraper bar 23 are matched to scrape and wash the inner wall of the lower storage bin 10, so that the cleaning efficiency is improved. After the water in the blanking bin 10 is accumulated to a certain depth, the spiral distributor 16 can be driven to rotate, so that the cleaning effect on the spiral distributor 16 is enhanced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A road repairing construction process is characterized in that: the method comprises the following steps:

s2, constructing a cement stabilized macadam foundation;

s32, placing a reinforcing mesh (2);

s33, arranging dowel bars (3) and transverse formworks (4) at the joints of two adjacent sets of reinforcing meshes (2);

s34, paving a concrete layer: paving guide rails (7) on two sides of the length direction of a construction road, placing a paving device between two groups of guide rails (7), enabling concrete to fall into a hopper (11) of the paving device from a discharge end of a mixer truck, enabling the concrete to be fully distributed in a lower storage bin (10) under the action of a spiral distributor (16), and then falling out of the lower storage bin (10), wherein the length of the lower storage bin (10) is matched with the design width of the construction road;

s35, vibrating;

s36, plastering and embossing;

s4, removing the formwork and constructing the expansion joint;

s5, maintaining;

the spreading device comprises a rack (8) erected between two side guide rails (7), a discharging bin (10) installed on the rack (8) and a plurality of rolling shafts (12), wherein a hopper (11) is arranged at the top of the discharging bin (10), a discharging opening is formed in the bottom of the discharging bin (10) along the length direction of the discharging bin, a baffle (14) is hinged to the discharging opening, and a driving piece for driving the baffle (14) to rotate is installed on the outer wall of the discharging bin (10); the spiral material distributor (16) is arranged in the blanking bin (10), the spiral material distributor (16) comprises a transmission rod (161) and spiral blades (162) spirally wound on the transmission rod (161), and the spiral blades (162) spirally extend from the middle of the transmission rod (161) to two ends in opposite directions;

a cleaning device is arranged in the lower storage bin (10), the cleaning device comprises a scraper (18), the shape of the scraper (18) is matched with the shape of the cross section of the lower storage bin (10), the scraper (18) is connected with the lower storage bin (10) in a sliding mode along the length direction of the lower storage bin (10), and a control assembly for controlling the scraper (18) to move is arranged on the lower storage bin (10);

the control assembly comprises a reciprocating screw rod (20) and a guide rod (21) which are arranged in the lower storage bin (10), the reciprocating screw rod (20) and the guide rod (21) penetrate through the scraper (18), two ends of the reciprocating screw rod (20) respectively penetrate through two ends of the lower storage bin (10) and are rotatably connected with the lower storage bin (10) through sealing bearings, a screw nut matched with the reciprocating screw rod (20) is connected onto the reciprocating screw rod (20), and the screw nut is embedded in the scraper (18);

one end of the scraping plate (18) is hinged with a scraping strip (23), one side of the scraping strip (23) close to the baffle (14) is recessed with a groove, a magnet (24) is embedded in the groove, and the magnet (24) does not protrude out of the groove;

the reciprocating screw rod (20) is arranged in a hollow mode, one end of the reciprocating screw rod (20) is arranged in a closed mode, the other end of the reciprocating screw rod is arranged in an open mode, the open end of the reciprocating screw rod (20) is connected with a rotary joint (25), a plurality of drain holes are formed in the peripheral wall of the reciprocating screw rod (20), and the drain holes are communicated with the hollow portion of the reciprocating screw rod (20).

2. The road repair construction process according to claim 1, characterized in that: can dismantle in feed bin (10) down and be connected with two baffles (22), the tip of feed bin (10) down is all worn out to the one end of baffle (22), the other end and scraper blade (18) of baffle (22) are pegged graft, and two baffles (22) hold the chamber with the second that is used for holding guide bar (21) with feed bin (10) formation and is used for holding the first chamber that holds of reciprocal lead screw (20).

3. The road repair construction process according to claim 1, characterized in that: offer logical groove (6) that a plurality of confession dowel steel (3) passed on horizontal template (4), a plurality of logical groove (6) are along the length direction of horizontal template (4) interval distribution side by side, lead to groove (6) and be the U type setting and link up a side of horizontal template (4), one side fixedly connected with polylith shrouding (5) of horizontal template (4), one shrouding (5) correspond logical groove (6), shrouding (5) will lead to groove (6) part and seal in order to form the through-hole that supplies dowel steel (3) to pass.