CN111395092A - Concrete filling method and device for road rapid repair - Google Patents
Concrete filling method and device for road rapid repair Download PDFInfo
- Publication number
- CN111395092A CN111395092A CN202010232336.6A CN202010232336A CN111395092A CN 111395092 A CN111395092 A CN 111395092A CN 202010232336 A CN202010232336 A CN 202010232336A CN 111395092 A CN111395092 A CN 111395092A
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- grinding
- sleeve
- concrete
- road
- area
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/147—Repairing concrete pavings, e.g. joining cracked road sections by dowels, applying a new concrete covering
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/0966—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for filling or priming, with or without working the surface of the filling or applying particulate material thereto, e.g. for filling the joints of stone-sett paving
Abstract
The invention discloses a concrete filling method and a concrete filling device for quickly repairing a road, which comprises the following steps: step 1, confirming a road repairing area, carrying out grinding treatment on a surface layer of a surface to be repaired, and grinding the surface layer to the bottom end of a concrete layer; step 2, after the grinding, arranging a sleeve matched with the groove in the groove formed by the grinding, and sinking the sleeve by 10-15 cm; step 3, spraying water in the sleeve area until the surface layer to be treated in the sleeve is wetted by the water, then attaching the inner side of the sleeve to drill a hole towards the surface layer to be treated, and taking out the soil residues to be crushed for bottom material treatment; and 4, taking out the sleeve, filling the processed soil residues into the groove, and tamping to finish repairing. The invention avoids the damage to the road surface which does not need to be repaired, and greatly improves the road repairing concrete filling and leveling efficiency.
Description
Technical Field
The invention relates to the technical field of road repair, in particular to a concrete filling method and a concrete filling device for quickly repairing a road.
Background
With the development of the times, the traffic volume of people is gradually increased, the number of damaged surfaces on roads is gradually increased, and the damage of the roads can influence the driving quality and the driving safety and is represented by the reduction of the service capability of the road surface and the reduction of the flatness and the skid resistance. Structural failure generally increases to some extent, as does functional failure. However, the repair of roads often brings great inconvenience to the trip of people, and when the traffic flow is large or serious road surface diseases appear on important road sections, the traffic needs to be sealed to repair the road surface, the occupied time is long, and the traffic pressure is increased.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
It is still another object of the present invention to provide a concrete leveling method and apparatus for rapid road repair, which avoids damage to a road surface not to be repaired and greatly improves the road repair concrete leveling efficiency.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a concrete leveling method for rapid road restoration, comprising the steps of:
And 2, after the grinding, arranging a sleeve matched with the groove in the groove formed by the grinding, and sinking the sleeve by 10-15 cm.
And 3, spraying water in the sleeve area until the surface layer to be treated in the sleeve is wetted by the water, then attaching the inner side of the sleeve to drill a hole towards the surface layer to be treated, and taking out the soil residues to be crushed to be used as a bottom material for treatment.
And 4, taking out the sleeve, filling the processed soil residues into the groove, and tamping to finish repairing.
Preferably, the specific method for confirming the road repair area in step 1 is as follows: and selecting a round point of the area of the road surface to be repaired, and determining the repair area by taking the round point as the circle center and the farthest repair point of the periphery of the road surface to be repaired away from the circle center as the diameter.
Preferably, the concrete steps of crushing the soil slag and making the bottom material in the step 3 are as follows:
and 3.1, crushing the soil residues, and sieving the crushed soil through a 6-mesh to 4-mesh sieve to obtain crushed soil.
And 3.2, mixing and stirring the crushed soil, water and the soil adhesive to obtain a filling mixture, placing the filling mixture in the groove, and tamping and leveling the filling mixture.
A concrete leveling device for rapid road restoration, comprising:
the crushing device comprises a vehicle body, a crushing device and a crushing device, wherein a containing box is arranged at the top end of the vehicle body, a partition plate is arranged in the containing box, the containing box is divided into an upper layer and a lower layer by the partition plate, the upper layer and the lower layer are respectively a working chamber and a die chamber, a first opening is formed in the top end of the working chamber, and the crushing device is arranged in the working chamber; a mould plate is arranged in the mould chamber and is arranged at a position opposite to the bottom end of the operation chamber in a manner of moving back and forth, a circular groove is formed in the top end of the mould plate, a main lifting plate and a plurality of sub lifting plates are arranged in the circular groove, the main lifting plate and the sub lifting plates are positioned in the circle center and are sleeved outside the main lifting plate in a ring manner, and lifting mechanisms are respectively arranged at the bottom ends of the main lifting plate and the sub lifting plates so as to control the lifting of the main lifting plate and the sub lifting plates; the top of mould board with the bottom laminating of operation room, main lifter plate top be provided with the communicating second opening of operation room, the second opening part sets up first solenoid valve switch.
The moving device comprises a frame body and a clamping device, the frame body is arranged at the rear end of the accommodating box in a front-back moving mode, and the clamping device is movably arranged in the middle of the frame body and is positioned on one side of the frame body, which is opposite to the accommodating box.
The grinding and drilling device is movably arranged at the rear end of the frame body and comprises a grinding head, a drill bit and a transmission cylinder, the grinding head and the drill bit are respectively connected with a motive power device, and the top end of the grinding head is a circular plane; the drill bit sets up to cask form, the bottom of drill bit sets up the sawtooth, the area is treated in the formation of drill bit operation, the transmission section of thick bamboo with the drill bit adaptation, and with the studio communicates with each other.
Preferably, the control device further comprises:
a main controller;
and the intelligent positioning module is used for acquiring the circle center coordinate and the diameter of the area to be filled and transmitting positioning information to the main controller so as to control the movement of the clamping device and ensure that the filling blocks in the circular groove clamped by the clamping device are positioned and overlapped with the area to be filled.
Preferably, the specific structure of the clamping device is as follows: clamping device includes movable guide and arc claw, the movable guide symmetry sets up in the framework, the parallel ground symmetry of arc claw sets up movable guide's front end, one side that the arc melon is relative sets up a plurality of draw-in grooves, set up in the draw-in groove and rotate the post, the rotation of rotating the post is controlled by main control unit.
The invention at least comprises the following beneficial effects:
the method is convenient for the development of a grinding and leveling process by a mode of positioning firstly, and prevents the damage to the pavement which does not need to be repaired beside the pavement due to repair while ensuring the operation of the surface to be repaired by a mode of grinding in a drilling way, thereby reducing unnecessary troubles and cost investment; through the mode of putting the telescopic adaptation earlier after the mill is flat, to the destruction of next door road surface structural layer when avoiding drilling, through the mode of water spray at the brill, increase soil viscosity, convenience when guaranteeing the drilling and borrowing, arrange the filling block of making in the area of packing promptly the recess again, tamp, realize promptly restoring to the high efficiency on road surface.
The accommodating box is arranged on the vehicle body, so that the drilling soil can be recovered in the operation chamber, the crushing device in the operation chamber can perform a series of corresponding crushing treatment on the drilling soil and send the drilling soil into the die plate through the second opening, namely, the drilling soil is sent into the circular groove matched with the repair area diameter of the drilling device, the circular groove can adjust the inner diameter of the repaired pavement by adjusting the lifting of the sub lifting plate according to the diameter of the repaired pavement, so that the diameter of the repaired pavement is consistent with that of the repaired pavement, the filling block which can be directly filled in the repaired pavement can be conveniently pressed, and the pavement can be repaired more quickly and efficiently; the grinding head is used for grinding, so that the damage to a side road surface during drilling and soil taking can be reduced conveniently in a mode of drilling and soil taking, and the drill bit structure is arranged so that the drilled soil slag can be cleaned for later use during drilling; the filling blocks are arranged in the filling road surface by the matching movement of the frame body and the clamping device, so that the road surface can be quickly and efficiently repaired.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural view of a concrete leveling device for rapid road restoration according to the present invention;
FIG. 2 is a schematic view showing the structure of the frame body of the concrete leveling device for rapid road restoration according to the present invention in an expanded state;
fig. 3 is a schematic structural view of the arc-shaped claw of the invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-2, the present invention provides a concrete leveling method for rapid road restoration, comprising the steps of:
And 2, after the grinding, arranging a sleeve matched with the groove in the groove formed by the grinding, and sinking the sleeve by 10-15 cm.
And 3, spraying water in the sleeve area until the surface layer to be treated in the sleeve is wetted by the water, then attaching the inner side of the sleeve to drill a hole towards the surface layer to be treated, and taking out the soil residues to be crushed to be used as a bottom material for treatment.
And 4, taking out the sleeve, filling the processed soil residues into the groove, and tamping to finish repairing.
In the scheme, the grinding and leveling process is conveniently carried out in a mode of positioning firstly, and the damage to the road surface which does not need to be repaired beside the road surface due to repair is prevented while the operation of the surface to be repaired is ensured by a mode of grinding in a drill, so that unnecessary troubles and cost investment are reduced; through the mode of putting the telescopic adaptation earlier after the mill is flat, to the destruction of next door road surface structural layer when avoiding drilling, through the mode of water spray at the brill, increase soil viscosity, convenience when guaranteeing the drilling and borrowing, arrange the filling block of making in the area of packing promptly the recess again, tamp, realize promptly restoring to the high efficiency on road surface.
In a preferred embodiment, the specific method for determining the road repair area in step 1 is as follows: and selecting a round point of the area of the road surface to be repaired, and determining the repair area by taking the round point as the circle center and the farthest repair point of the periphery of the road surface to be repaired away from the circle center as the diameter.
In the scheme, the circle center is selected in a circle planning mode, so that the later-stage filling blocks can be conveniently manufactured and filled, the farthest repairing point away from the circle center is used as the radius, and the road surface to be repaired is contained in the circle, so that the grinding and drilling operation is facilitated.
In a preferred scheme, the concrete steps of crushing the soil residues in the step 3 and processing the crushed soil residues as the base material are as follows:
step 3.1, crushing the soil residues, and sieving the crushed soil through a 6-mesh to 4-mesh sieve to obtain crushed soil;
and 3.2, mixing and stirring the crushed soil, water and the soil adhesive to obtain a filling mixture, placing the filling mixture in the groove, and tamping and leveling the filling mixture.
A concrete leveling device for rapid road restoration, comprising:
the top end of the vehicle body 1 is provided with an accommodating box 10, a partition plate 11 is arranged in the accommodating box 10, the accommodating box 10 is divided into an upper layer and a lower layer by the partition plate 11, the upper layer and the lower layer are respectively a working chamber 13 and a die chamber 14, the top end of the working chamber 13 is provided with a first opening 12, and a crushing device is arranged in the working chamber 13; a mould plate 15 is arranged in the mould chamber 14, the mould plate 15 is arranged at a position opposite to the bottom end of the operation chamber 13 in a manner of moving back and forth, a circular groove is arranged at the top end of the mould plate 15, a main lifting plate 16 and a plurality of sub lifting plates 17 are arranged in the circular groove, the main lifting plate 16 and the sub lifting plates 17 are positioned at the center of a circle and are sleeved outside the main lifting plate 16, and lifting mechanisms are respectively arranged at the bottom ends of the main lifting plate 16 and the sub lifting plates 17 so as to control the lifting of the main lifting plate 16 and the sub lifting plates 17; the top of mould board 15 with the bottom laminating of operation room 13, main lifter plate 16 top be provided with the communicating second opening 18 of operation room 13, second opening 18 department sets up first solenoid valve switch.
The moving device comprises a frame body 20 and a clamping device 21, wherein the frame body 20 is arranged at the rear end of the accommodating box 10 in a manner of moving back and forth, and the clamping device 21 is arranged in the middle of the frame body 20 in a manner of moving back and forth and is positioned at one side of the frame body 20 opposite to the accommodating box 10.
The grinding and drilling device is movably arranged at the rear end of the frame body 20 and comprises a grinding head 30, a drill bit 31 and a transmission cylinder 32, the grinding head 30 and the drill bit 31 are respectively connected with a motive power device, and the top end of the grinding head 30 is a circular plane; the drill 31 is in a barrel shape, the bottom end of the drill 31 is provided with sawteeth, the drill 31 operates to form an area to be filled, and the transmission barrel 32 is matched with the drill 31 and communicated with the operation room 13.
In the scheme, the accommodating box 10 is arranged on the vehicle body 1, so that the operation chamber 13 can recover drilled soil residues, the grinding device in the operation chamber 13 correspondingly grinds the drilled soil residues and sends the ground residues into the die plate 15 through the second opening 18, namely, the ground residues are conveyed into a circular groove matched with the repair area diameter of the drilling device, the inner diameter of the circular groove can be adjusted by adjusting the lifting of the sub lifting plate 17 according to the diameter of the repaired pavement, the diameter of the repaired pavement is consistent with that of the repaired pavement, and therefore a filling block which can be directly filled in the repaired pavement is pressed out, and the pavement can be repaired more quickly and efficiently; the main lifting plate 16 is used as a filling block with the minimum diameter, and the minimum diameter of the drilled hole needs to be ensured to be matched with the outer diameter of the main lifting plate 16, so that the diameter of the manufactured filling block is conveniently enlarged on the basis of the main lifting plate 16, the positions of the grinding head 30 and the drill bit 31 are exchanged through rotation, and the ground by the grinding head 30 is smooth, so that the damage to a side road surface during drilling and soil taking is conveniently reduced in a soil slag drilling mode, and the drill bit 31 is convenient to clean the drilled soil slag for later use during drilling; the filling blocks are placed in the filling pavement through the matching movement of the frame body 20 and the clamping device 21, so that the pavement can be quickly and efficiently repaired.
In a preferred aspect, the present invention further comprises a control device, which includes:
a main controller;
and the intelligent positioning module is used for acquiring the circle center coordinate and the diameter of the area to be filled and transmitting positioning information to the main controller so as to control the movement of the clamping device 21 and ensure that the filling blocks in the circular groove clamped by the clamping device are positioned and overlapped with the area to be filled.
In the scheme, the main controller is connected with the intelligent positioning module, and the intelligent positioning module is utilized to enable the clamping device 21 to clamp the filling block in the fastest time and quickly and accurately position the filling block above the area to be filled, so that the pavement repairing efficiency is effectively improved
In a preferred embodiment, the specific structure of the clamping device 21 is as follows: clamping device 21 includes movable guide rail 40 and arc claw 41, movable guide rail 40 symmetry sets up on framework 20, the parallel ground symmetry of arc claw 41 sets up movable guide rail 40's front end, the one side that the arc melon is relative sets up a plurality of draw-in grooves, set up in the draw-in groove and rotate post 42, the rotation of rotating post 42 is controlled by main control unit.
In the above scheme, as shown in fig. 3, press from both sides tight stuff block through clamping device 21, main control unit control clamping device 21's removal, through the lateral surface contact chucking of a plurality of cylinders of horizontal in the draw-in groove and stuff block, under the effect of arc claw 41 counterpressure, the realization is to the tight clamp of stuff block, when placing stuff block and packing area in, main control unit control rotates post 42 and rotates downwards, make tight stuff block sink gradually in packing area, when avoiding stuff block at the direct pine of take the altitude to put, the stuff block phenomenon of breaking that probably causes, and then guarantee packing quality.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (6)
1. A concrete filling method for rapid road repair comprises the following steps:
step 1, confirming a road repairing area, carrying out grinding treatment on a surface layer of a surface to be repaired, and grinding the surface layer to the bottom end of a concrete layer;
step 2, after the grinding, arranging a sleeve matched with the groove in the groove formed by the grinding, and sinking the sleeve by 10-15 cm;
step 3, spraying water in the sleeve area until the surface layer to be treated in the sleeve is wetted by the water, then attaching the inner side of the sleeve to drill a hole towards the surface layer to be treated, and taking out the soil residues to be crushed for bottom material treatment;
and 4, taking out the sleeve, filling the processed soil residues into the groove, and tamping to finish repairing.
2. The concrete leveling method for rapid road restoration according to claim 1, wherein the concrete method for determining the road restoration area in step 1 is as follows: and selecting a round point of the area of the road surface to be repaired, and determining the repair area by taking the round point as the circle center and the farthest repair point of the periphery of the road surface to be repaired away from the circle center as the diameter.
3. The concrete filling method for rapid road restoration as claimed in claim 1, wherein the concrete steps of crushing the soil slag and making a base material in step 3 are as follows:
step 3.1, crushing the soil residues, and sieving the crushed soil through a 6-mesh to 4-mesh sieve to obtain crushed soil;
and 3.2, mixing and stirring the crushed soil, water and the soil adhesive to obtain a filling mixture, placing the filling mixture in the groove, and tamping and leveling the filling mixture.
4. A concrete leveling device for rapid road restoration, comprising:
the crushing device comprises a vehicle body, a crushing device and a crushing device, wherein a containing box is arranged at the top end of the vehicle body, a partition plate is arranged in the containing box, the containing box is divided into an upper layer and a lower layer by the partition plate, the upper layer and the lower layer are respectively a working chamber and a die chamber, a first opening is formed in the top end of the working chamber, and the crushing device is arranged in the working chamber; a mould plate is arranged in the mould chamber and is arranged at a position opposite to the bottom end of the operation chamber in a manner of moving back and forth, a circular groove is formed in the top end of the mould plate, a main lifting plate and a plurality of sub lifting plates are arranged in the circular groove, the main lifting plate and the sub lifting plates are positioned in the circle center and are sleeved outside the main lifting plate in a ring manner, and lifting mechanisms are respectively arranged at the bottom ends of the main lifting plate and the sub lifting plates so as to control the lifting of the main lifting plate and the sub lifting plates; the top end of the die plate is attached to the bottom end of the operation chamber, a second opening communicated with the operation chamber is formed above the main lifting plate, and a first electromagnetic valve switch is arranged at the second opening;
the moving device comprises a frame body and a clamping device, the frame body is arranged at the rear end of the accommodating box in a front-and-back moving mode, and the clamping device is movably arranged in the middle of the frame body and is positioned on one side of the frame body, which is opposite to the accommodating box;
the grinding and drilling device is movably arranged at the rear end of the frame body and comprises a grinding head, a drill bit and a transmission cylinder, the grinding head and the drill bit are respectively connected with a motive power device, and the top end of the grinding head is a circular plane; the drill bit sets up to cask form, the bottom of drill bit sets up the sawtooth, the area is treated in the formation of drill bit operation, the transmission section of thick bamboo with the drill bit adaptation, and with the studio communicates with each other.
5. The concrete leveling device for rapid road restoration according to claim 4, further comprising a control device including:
a main controller;
and the intelligent positioning module is used for acquiring the circle center coordinate and the diameter of the area to be filled and transmitting positioning information to the main controller so as to control the movement of the clamping device and ensure that the filling blocks in the circular groove clamped by the clamping device are positioned and overlapped with the area to be filled.
6. A concrete levelling device for the rapid repair of roads as claimed in claim 5, wherein the concrete structure of the clamping device is: clamping device includes movable guide and arc claw, the movable guide symmetry sets up in the framework, the parallel ground symmetry of arc claw sets up movable guide's front end, one side that the arc melon is relative sets up a plurality of draw-in grooves, set up in the draw-in groove and rotate the post, the rotation of rotating the post is controlled by main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010232336.6A CN111395092B (en) | 2020-03-27 | 2020-03-27 | Concrete filling method and device for road rapid repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010232336.6A CN111395092B (en) | 2020-03-27 | 2020-03-27 | Concrete filling method and device for road rapid repair |
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| Publication Number | Publication Date |
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| CN111395092A true CN111395092A (en) | 2020-07-10 |
| CN111395092B CN111395092B (en) | 2021-11-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518033A (en) * | 2012-01-06 | 2012-06-27 | 长安大学 | Asphalt pavement round pit milling-planing equipment capable of automatically recycling milling-planing particles |
| JP2016014229A (en) * | 2014-07-01 | 2016-01-28 | エクセン株式会社 | Concrete cutter |
| CN106835920A (en) * | 2017-03-08 | 2017-06-13 | 江苏道美工程机械有限公司 | A kind of multifunctional road is cared the car |
| US20170218574A1 (en) * | 2013-03-15 | 2017-08-03 | William B. Coe | Pavement repair system |
| CN110258232A (en) * | 2019-05-09 | 2019-09-20 | 山东交通职业学院 | A kind of pavement patching method and repair apparatus |
| CN110846967A (en) * | 2019-11-21 | 2020-02-28 | 张中元 | Method and apparatus for reconstructing a road surface for highway construction |
-
2020
- 2020-03-27 CN CN202010232336.6A patent/CN111395092B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518033A (en) * | 2012-01-06 | 2012-06-27 | 长安大学 | Asphalt pavement round pit milling-planing equipment capable of automatically recycling milling-planing particles |
| US20170218574A1 (en) * | 2013-03-15 | 2017-08-03 | William B. Coe | Pavement repair system |
| JP2016014229A (en) * | 2014-07-01 | 2016-01-28 | エクセン株式会社 | Concrete cutter |
| CN106835920A (en) * | 2017-03-08 | 2017-06-13 | 江苏道美工程机械有限公司 | A kind of multifunctional road is cared the car |
| CN110258232A (en) * | 2019-05-09 | 2019-09-20 | 山东交通职业学院 | A kind of pavement patching method and repair apparatus |
| CN110846967A (en) * | 2019-11-21 | 2020-02-28 | 张中元 | Method and apparatus for reconstructing a road surface for highway construction |
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| CN111395092B (en) | 2021-11-02 |
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Effective date of registration: 20211013 Address after: 264200 middle section of Yong'an street, Xiaoguan Town, Wendeng District, Weihai City, Shandong Province Applicant after: Weihai Jinhai Municipal Engineering Co.,Ltd. Address before: 223001 No. 1011 Xiangyu Avenue, Huai'an District, Huai'an City, Jiangsu Province Applicant before: Zhao Xiaodong |
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Denomination of invention: Concrete filling method and device for rapid road repair Effective date of registration: 20221223 Granted publication date: 20211102 Pledgee: Industrial and Commercial Bank of China Limited Weihai Wendeng sub branch Pledgor: Weihai Jinhai Municipal Engineering Co.,Ltd. Registration number: Y2022980028804 |
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