CN114481763A - Curb backrest concrete formwork device and construction method thereof - Google Patents

Curb backrest concrete formwork device and construction method thereof Download PDF

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Publication number
CN114481763A
CN114481763A CN202210193208.4A CN202210193208A CN114481763A CN 114481763 A CN114481763 A CN 114481763A CN 202210193208 A CN202210193208 A CN 202210193208A CN 114481763 A CN114481763 A CN 114481763A
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CN
China
Prior art keywords
curb
concrete
piece
kerbstone
backrest
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Pending
Application number
CN202210193208.4A
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Chinese (zh)
Inventor
苗宠
杜学航
刘琛
温孝祥
段啊鹏
师启蒙
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China Construction Civil Engineering Co Ltd
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China Construction Civil Engineering Co Ltd
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Publication date
Application filed by China Construction Civil Engineering Co Ltd filed Critical China Construction Civil Engineering Co Ltd
Priority to CN202210193208.4A priority Critical patent/CN114481763A/en
Publication of CN114481763A publication Critical patent/CN114481763A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/50Removable forms or shutterings for road-building purposes; Devices or arrangements for forming individual paving elements, e.g. kerbs, in situ
    • E01C19/502Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes
    • E01C19/506Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes for kerbs, gutters or similar structures, e.g. raised portions, median barriers

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

The invention relates to a curb back concrete formwork device and a construction method thereof, wherein the curb back concrete formwork device comprises the following steps: the support is erected on the construction surface corresponding to the kerbstone and comprises a first resisting piece positioned on one side of the kerbstone and a second resisting piece attached to the other side of the kerbstone, and the first resisting piece is arranged on the same side of the design position of the back concrete of the kerbstone and has a distance with the kerbstone; install in the steel form that first piece that keeps out is close to one side of curb, erect on the construction face, form the space of pouring that supplies concreting between steel form and the curb. Through the length direction movable mould board device along the curb to pour multistage curb back concrete in proper order in succession, construction easy operation is convenient, has practiced thrift manpower and time, has improved the efficiency of construction. Due to the limiting effect of the curb, the curb can resist the lateral pressure of the concrete to the formwork after the concrete is poured, the first stop piece and the second stop piece are prevented from moving, and the forming quality of the curb backrest concrete is ensured.

Description

Curb backrest concrete formwork device and construction method thereof
Technical Field
The invention relates to the technical field of buildings, in particular to a curb backrest concrete formwork device and a construction method thereof.
Background
Curb back concrete is located the curb and is kept away from one side of road, at the in-process of pouring of curb back concrete, adopts the plank to set up the plank sheathing temporarily usually, pours one section curb back concrete and establishes one section plank sheathing correspondingly, construction complex operation, and the efficiency of construction is lower, because the plank sheathing steadiness is relatively poor moreover, produces the problem that rises the mould easily, influences the shaping quality of curb back concrete.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a curb backrest concrete formwork device and a construction method thereof, so as to solve the problems of complicated operation, low construction efficiency and poor forming quality of the curb backrest concrete in the pouring construction of the existing curb backrest concrete.
To achieve the above object, the present invention provides a curb back concrete form apparatus comprising:
the support is erected on a construction surface corresponding to the kerbstone and comprises a first abutting part positioned on one side of the kerbstone and a second abutting part abutted against the other side of the kerbstone, and the first abutting part is arranged on the same side of the design position of the back concrete of the kerbstone and has a distance with the kerbstone; and
the steel formwork is arranged on one side, close to the kerb, of the first blocking piece and is vertically arranged on the construction surface, and a pouring space for pouring concrete is formed between the steel formwork and the kerb.
When a section of curb backrest concrete is poured, the template device is moved to the designed position of the section of curb backrest concrete, a pouring space is formed between the template on the first resisting part and the curb, the second resisting part is attached to the other side of the curb, the concrete is poured into the pouring space by sealing two ends of the pouring space to form a section of curb backrest concrete, and when the next section of curb backrest concrete is poured, the template device is moved to the designed position of the next section of curb backrest concrete to continue to pour the concrete. Due to the limiting effect of the kerbstone, the problem that the first blocking piece and the second blocking piece move due to the fact that the concrete is located on the side of the formwork after the concrete is poured can be solved, so that the supporting stability of the formwork device is guaranteed, and the forming quality of the kerbstone backrest concrete is guaranteed.
The curb back concrete formwork device of the invention is further improved in that the bracket further comprises a telescopic component which is installed and connected between the first resisting piece and the second resisting piece and can be telescopically adjusted.
The curb back concrete formwork device of the invention is further improved in that the end of the telescopic assembly is mounted on the corresponding first and second abutment members in a vertically movable adjustable manner.
The curb back concrete formwork device is further improved in that the support further comprises sleeves mounted at two ends of the telescopic assembly, and the sleeves are sleeved on the corresponding first abutting pieces and the second abutting pieces.
The concrete formwork device for the back of the kerb is further improved in that the concrete formwork device further comprises rollers which are arranged on the support and are placed above the kerb.
A further improvement of the kerb back concrete formwork arrangement of the present invention is that the telescopic assembly comprises two pipe elements which are telescopically connected.
The curb back concrete formwork device of the invention is further improved in that the bottom of the second stopper is provided with rollers.
The curb back concrete template device is further improved in that a first butt joint piece and a second butt joint piece are arranged on one side, far away from the curb, of the steel template, and the first butt joint piece and the second butt joint piece are respectively arranged close to two ends of the steel template;
the template device is at least two, and when two template devices are butted, the end surfaces of the steel templates of the two template devices are attached to each other, wherein a first butt joint piece on one steel template is connected with a second butt joint piece on the other steel template through a first fastener in an installing mode.
The curb back concrete formwork device is further improved in that a first connecting piece is arranged on the first resisting piece;
and a second connecting piece is arranged on the steel template corresponding to the first connecting piece, and the first connecting piece and the corresponding second connecting piece are installed and connected through a second fastener.
The invention also provides a construction method using the curb backrest concrete formwork device, which comprises the following steps:
when a section of curb back concrete is constructed, erecting the curb corresponding to the section of the support on a construction surface, arranging the first resisting piece and the curb back concrete at the same side of the design position, forming a pouring space for pouring the concrete between the steel template and the curb, and adhering the second resisting piece to the other side of the curb;
providing baffles, blocking two ends of a pouring space by using the baffles, and pouring concrete into the pouring space to form a section of curb backrest concrete;
and moving the template device to the design position of the next section of the curb backrest concrete, constructing the next section of the curb backrest concrete according to the steps until the pouring construction of all the curb backrest concrete is completed, and blocking one end of a pouring space by using the last section of the curb backrest concrete when constructing the next section of the curb backrest concrete, wherein the blocking plate only needs to block the other end of the pouring space.
Drawings
Fig. 1 is a perspective view of a curb back concrete form assembly of the present invention.
Fig. 2 is a front view of the curb back concrete form assembly of the present invention.
Fig. 3 is a side view of the curb back concrete form assembly of the present invention.
In the figure: the support 10, the first stop 11, the second stop 12, the telescopic assembly 13, the pipe 131, the sleeve 14, the support beam 15, the steel form 20, the roller 30, the roller 40, the first butt-joint element 51, the second butt-joint element 52, and the second fastening element 60.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a curb backrest concrete formwork device which is used for pouring construction of curb backrest concrete and comprises a first abutting piece, a second abutting piece, a telescopic assembly and a steel formwork, wherein the length of the telescopic assembly is telescopically adjusted to adjust the distance between the first abutting piece and the second abutting piece, so that the curb backrest concrete formwork device can be adapted to different design widths of curb backrest concrete, the application range is wider, the formwork device does not need to be disassembled and assembled, and the construction efficiency is improved.
The following describes a curb back concrete form apparatus and a construction method thereof according to the present invention with reference to the accompanying drawings.
Referring to fig. 1, in the present embodiment, a curb back concrete formwork apparatus includes: the support 10 is erected on a construction surface corresponding to the kerbstone, the support 10 comprises a first abutting piece 11 positioned on one side of the kerbstone and a second abutting piece 12 abutted against the other side of the kerbstone, and the first abutting piece 11 is arranged on the same side of the design position of the back concrete of the kerbstone and has a distance with the kerbstone; the steel formwork 20 installed on one side, close to the kerb, of the first support member 11 is vertically arranged on the construction surface, and a pouring space for pouring concrete is formed between the steel formwork 20 and the kerb.
Formwork device corresponds curb with support 10 in this embodiment and erects on the construction face, adjust the position of support 10, make and form between first template and the curb that supports on keeping off piece 11 and pour the space, for concreting form one section curb back concrete, through the length direction movable mould board device along the curb, and pour multistage curb back concrete in proper order in succession, thereby form complete curb back concrete structure, whole construction easy operation is convenient, manpower and time have been practiced thrift, great improvement the efficiency of construction. The second supports and keeps off piece 12 and pastes and lean on the opposite side in the curb, because the limiting displacement of curb, can keep off the lateral pressure that the concrete was to the template after concreting, avoid first supporting to keep off 11 and second to keep off 12 and take place to remove, improved the steadiness that the template device was established, the shaping quality preferred of curb back concrete.
Referring to fig. 1 and 3, in a specific embodiment, the bracket 10 further includes a telescopic assembly 13 installed and connected between the first supporting member 11 and the second supporting member 12, the telescopic assembly 13 is telescopically adjustable, and the length of the telescopic assembly 13 is telescopically adjusted to adjust the distance between the first supporting member 11 and the second supporting member 12, so as to adjust the width of a pouring space between the formwork and the curb, so that the bracket can be adapted to different design widths of the curb backrest concrete, and the application range is wider.
Referring to fig. 1 and 3, further, the end of the telescopic assembly 13 is mounted on the corresponding first and second abutments 11 and 12 in a vertically movable adjustable manner, and the height of the telescopic assembly 13 is adjusted to fit the curbs of different heights.
Referring to fig. 1 and 3, further, the bracket 10 further includes sleeves 14 mounted at two ends of the telescopic assembly 13, and the sleeves 14 are sleeved on the corresponding first and second stoppers 11 and 12.
Referring to fig. 1 and 3, preferably, a plurality of first through holes are formed in the first abutting piece 11 at intervals in the length direction, a plurality of second through holes are formed in the second abutting piece 12 at intervals in the length direction, a third through hole is formed in the sleeve 14, the sleeve 14 and the first abutting piece 11 are installed and connected by inserting a first bolt into the third through hole and the corresponding first through hole, and the sleeve 14 and the second abutting piece 12 are installed and connected by inserting a second bolt into the third through hole and the corresponding second through hole.
Referring to fig. 1 and 3, in one embodiment, the formwork arrangement further comprises rollers 30 mounted on the frame 10 and placed over the kerb. Adjust telescopic component 13 through vertical removal for running roller 30 compresses tightly on the curb, and running roller 30 is equivalent to the counter weight, ensures the steadiness that support 10 erected. Adjust flexible subassembly 13 through vertical removal, make running roller 30 arrange in on the curb and have gliding space, when the length direction movable mould board device along the curb, running roller 30 can remove on the top surface of curb freely for the movable mould board device is more convenient, light laborsaving.
Referring to fig. 1 and 3, further, the roller 40 is installed on the telescopic assembly 13, and the running direction of the roller 30 is consistent with the length direction of the kerb. The telescopic assembly 13 is adjusted by vertical movement so that the roller 30 can be slipped on the kerb.
Referring to fig. 1 and fig. 3, further, the telescopic assembly 13 includes two pipe fittings 131 connected in a sleeved manner, the pipe fitting 131 is provided with a plurality of insertion holes, and the two pipe fittings 131 are installed and connected by inserting the plug connectors into the corresponding insertion holes of the two pipe fittings 131.
Referring to fig. 1 and 3, in one embodiment, the bottom of the second abutment member 12 is fitted with rollers 40 to facilitate pushing and moving the template assembly.
Referring to fig. 1 and 2, in a specific embodiment, a first butt piece 51 and a second butt piece 52 are arranged on one side of the steel form 20 away from the curb, and the first butt piece 51 and the second butt piece 52 are respectively arranged near two ends of the steel form 20; the template devices are at least two, when the two template devices are butted, the end faces of the steel templates 20 of the two template devices are attached, and a first butt joint piece 51 on one steel template 20 is connected with a second butt joint piece 52 on the other steel template 20 through a first fastener.
Referring to fig. 1 and 2, further, the first butt-joint member 51 is a pair of first butt-joint lug plates, and the second butt-joint member 52 is a pair of second butt-joint lug plates, which partially extend out of the steel form 20; when the two steel formwork devices are butted, the first butt-joint lug plate on one steel formwork 20 and the second butt-joint lug plate on the other steel formwork 20 are partially overlapped and are installed and connected through the first pin shaft.
Referring to fig. 1 and 2, in a specific embodiment, the first abutting member 11 is provided with a first connecting member; the steel form 20 is provided with a second connecting member corresponding to the first connecting member, and the first connecting member and the corresponding second connecting member are installed and connected by a second fastening member 60.
Referring to fig. 1 and 2, further, the first connecting member 51 is a pair of first connecting lug plates, the second connecting member 52 is a pair of second connecting lug plates, and the pair of second connecting lug plates and the corresponding pair of first connecting lug plates are connected by a second pin.
Referring to fig. 1 and 2, preferably, the first abutting pieces 11 are two and correspond to the second abutting pieces 12 one by one, a supporting beam 15 is installed between the two second abutting pieces 12, and the supporting beam 15 is installed on the upper second abutting piece 12 through a sleeve 14.
The following describes a construction process of the kerb back concrete form device of the present invention.
When a section of curb back concrete is constructed, erecting a curb corresponding to the section of a support 10 on a construction surface, arranging the first supporting piece 11 and the curb back concrete at the same side of a design position, attaching the second supporting piece 12 to the other side of the curb, and adjusting the length of the telescopic component 13 in a telescopic way so that the width of a pouring space formed between the steel template 20 and the curb is matched with the design width of the curb back concrete; the telescopic assembly 13 is adjusted by vertical movement to press the roller 30 against the curb.
Providing a baffle, blocking two ends of the pouring space by using the baffle, and pouring concrete into the pouring space to form a section of curb backrest concrete;
the formwork device is moved to the design position of the next section of the curb backrest concrete, the next section of the curb backrest concrete is constructed according to the steps until the pouring construction of all the curb backrest concrete is completed, and when the next section of the curb backrest concrete is constructed, one end of a pouring space is blocked by utilizing the last section of the curb backrest concrete, and the other end of the pouring space is only blocked by the baffle.
Preferably, the first stop 11 and the second stop 12 are vertically disposed on the construction surface, and the retractable assembly 13 is transversely installed and connected between the first stop 11 and the second stop 12.
The invention also provides a construction method using the curb backrest concrete formwork device, which comprises the following steps:
when a section of curb back concrete is constructed, erecting the curb corresponding to the section of the support 10 on a construction surface, arranging the first abutting piece 11 and the design position of the curb back concrete at the same side, forming a pouring space for pouring the concrete between the steel template 20 and the curb, and abutting the second abutting piece 12 to the other side of the curb;
providing a baffle, blocking two ends of the pouring space by using the baffle, and pouring concrete into the pouring space to form a section of curb backrest concrete;
the formwork device is moved to the design position of the next section of the curb back to the concrete, and when the formwork device is moved in the length direction of the curb, the rollers 30 move on the top surface of the curb. And constructing the next section of the curb backrest concrete according to the steps until the pouring construction of all the curb backrest concrete is completed, and when constructing the next section of the curb backrest concrete, blocking one end of a pouring space by using the previous section of the curb backrest concrete, wherein the blocking plate only needs to block the other end of the pouring space.
In this embodiment, the bracket 10 further includes a telescopic assembly 13 installed and connected between the first stop 11 and the second stop 12, and the telescopic assembly 13 is telescopically adjustable;
when erecting the support 10, the length of the telescopic assembly 13 is adjusted by telescoping so that the width of the casting space is adapted to the design width of the curb back concrete.
Further, the formwork apparatus further includes rollers 30 installed on the bracket 10 and placed on the kerb.
When moving the formwork apparatus along the length direction of the kerb, the rollers 30 move on the top surface of the kerb.
Furthermore, the end of the telescopic assembly 13 is mounted on the corresponding first abutment 11 or second abutment 12 in a vertically movable and adjustable manner;
when the support 10 is erected, the telescopic assembly 13 is adjusted by vertical movement so that the roller 30 is pressed against the curb.
Furthermore, the formwork apparatus further includes sleeves 14 installed at two ends of the telescopic assembly 13, and the sleeves 14 are installed on the corresponding first abutting pieces 11 or the corresponding second abutting pieces 12 in a sleeved manner.
The vertical movement adjustment of the telescopic assembly 13 is achieved by moving the mounting position of the adjustment sleeve 14 on the corresponding first abutment 11 or second abutment 12.
Further, the telescopic assembly 13 includes two tubes 131 which are connected in a sleeved manner.
The telescopic length of the telescopic assembly 13 can be adjusted by adjusting the length of the overlapped part of the two pipe members 131.
In a specific embodiment, a first butt-joint member 51 and a second butt-joint member 52 are arranged on one side of the steel form 20 away from the curb, and the first butt-joint member 51 and the second butt-joint member 52 are respectively arranged close to two ends of the steel form 20;
the template devices are at least two, when the two template devices are butted, the end faces of the steel templates 20 of the two template devices are attached, and the first butt joint piece 51 on one steel template 20 and the second butt joint piece 52 on the other steel template 20 are installed and connected through the first fastening piece.
And providing a release agent, wherein the release agent is provided before the concrete is poured, the release agent is coated on one side, close to the curb, of the steel formwork 20, and after the poured concrete reaches a preset strength, the length of the telescopic assembly 13 is adjusted to be long, so that the steel formwork 20 is separated from the concrete.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.

Claims (10)

1. A curb back concrete form assembly, comprising:
the support is erected on a construction surface corresponding to the kerbstone and comprises a first abutting part positioned on one side of the kerbstone and a second abutting part abutted against the other side of the kerbstone, and the first abutting part is arranged on the same side of the design position of the back concrete of the kerbstone and has a distance with the kerbstone; and
the steel formwork is arranged on one side, close to the kerb, of the first blocking piece and is vertically arranged on the construction surface, and a pouring space for pouring concrete is formed between the steel formwork and the kerb.
2. The curb back concrete form work of claim 1 wherein the bracket further comprises a telescoping assembly mounted between the first stop and the second stop, telescopically adjustable.
3. A curb back concrete form assembly as claimed in claim 2 wherein the ends of the telescoping assemblies are vertically movably adjustable mounted to the respective first and second abutments.
4. The curb back concrete form assembly of claim 3 wherein the bracket further comprises sleeves mounted to both ends of the telescoping assembly, the sleeves mounted over the corresponding first and second abutments.
5. The curb back concrete form assembly of claim 2 further comprising rollers mounted on the bracket and positioned over the curb.
6. A curb back concrete form assembly as claimed in claim 2 wherein the telescoping assembly includes two tubes in a socket connection.
7. The curb back concrete form assembly of claim 1 wherein a bottom of the second stop mounts rollers.
8. The curb back concrete form assembly of claim 1 wherein a first docking member and a second docking member are disposed on a side of the steel form remote from the curb, the first docking member and the second docking member being disposed proximate to respective ends of the steel form;
the template device is at least two, and when two template devices are butted, the end surfaces of the steel templates of the two template devices are attached to each other, wherein a first butt joint piece on one steel template is connected with a second butt joint piece on the other steel template through a first fastener in an installing mode.
9. The curb back concrete form work apparatus of claim 1 wherein the first stop member is provided with a first connector;
and a second connecting piece is arranged on the steel template corresponding to the first connecting piece, and the first connecting piece and the corresponding second connecting piece are installed and connected through a second fastener.
10. A construction method using the curb back concrete form work of claim 1, comprising the steps of:
when a section of curb back concrete is constructed, erecting the curb corresponding to the section of the support on a construction surface, arranging the first resisting piece and the curb back concrete at the same side of the design position, forming a pouring space for pouring the concrete between the steel template and the curb, and adhering the second resisting piece to the other side of the curb;
providing baffles, blocking two ends of a pouring space by using the baffles, and pouring concrete into the pouring space to form a section of curb backrest concrete;
and moving the template device to the design position of the next section of the curb backrest concrete, constructing the next section of the curb backrest concrete according to the steps until the pouring construction of all the curb backrest concrete is completed, and blocking one end of a pouring space by using the last section of the curb backrest concrete when constructing the next section of the curb backrest concrete, wherein the blocking plate only needs to block the other end of the pouring space.
CN202210193208.4A 2022-03-01 2022-03-01 Curb backrest concrete formwork device and construction method thereof Pending CN114481763A (en)

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Application Number Priority Date Filing Date Title
CN202210193208.4A CN114481763A (en) 2022-03-01 2022-03-01 Curb backrest concrete formwork device and construction method thereof

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Application Number Priority Date Filing Date Title
CN202210193208.4A CN114481763A (en) 2022-03-01 2022-03-01 Curb backrest concrete formwork device and construction method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115094724A (en) * 2022-07-21 2022-09-23 中铁十七局集团建筑工程有限公司 Curb back pouring and maintaining integrated device
CN115976917A (en) * 2023-02-14 2023-04-18 中国一冶集团有限公司 Auxiliary assembly device for kerbstone and construction method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008046476A1 (en) * 2008-09-09 2010-03-11 Probst Greiftechnik Verlegesysteme Gmbh Laying device for curbstones, has formwork part, which is mounted at side of frame part, and plane of formwork part is arranged parallel to side surface of curbstone
CN112626983A (en) * 2020-12-17 2021-04-09 中建八局第二建设有限公司 Rapid construction tool and construction method for road kerbstone
CN214992912U (en) * 2021-04-06 2021-12-03 临沂市政集团有限公司 Curb back consolidates U type card for municipal construction
CN114032745A (en) * 2021-12-21 2022-02-11 中建八局第二建设有限公司 Reinforcement tool for concrete formwork of road edge stone backrest and construction method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008046476A1 (en) * 2008-09-09 2010-03-11 Probst Greiftechnik Verlegesysteme Gmbh Laying device for curbstones, has formwork part, which is mounted at side of frame part, and plane of formwork part is arranged parallel to side surface of curbstone
CN112626983A (en) * 2020-12-17 2021-04-09 中建八局第二建设有限公司 Rapid construction tool and construction method for road kerbstone
CN214992912U (en) * 2021-04-06 2021-12-03 临沂市政集团有限公司 Curb back consolidates U type card for municipal construction
CN114032745A (en) * 2021-12-21 2022-02-11 中建八局第二建设有限公司 Reinforcement tool for concrete formwork of road edge stone backrest and construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115094724A (en) * 2022-07-21 2022-09-23 中铁十七局集团建筑工程有限公司 Curb back pouring and maintaining integrated device
CN115976917A (en) * 2023-02-14 2023-04-18 中国一冶集团有限公司 Auxiliary assembly device for kerbstone and construction method
CN115976917B (en) * 2023-02-14 2024-05-17 中国一冶集团有限公司 Curb assembly auxiliary device and construction method

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