CN116463906B - Construction process and quality control method of non-joint cement concrete pavement - Google Patents
Construction process and quality control method of non-joint cement concrete pavement Download PDFInfo
- Publication number
- CN116463906B CN116463906B CN202310579642.0A CN202310579642A CN116463906B CN 116463906 B CN116463906 B CN 116463906B CN 202310579642 A CN202310579642 A CN 202310579642A CN 116463906 B CN116463906 B CN 116463906B
- Authority
- CN
- China
- Prior art keywords
- cement concrete
- pouring
- assembly
- construction process
- poured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 69
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 31
- 238000003908 quality control method Methods 0.000 title claims abstract description 17
- 239000011499 joint compound Substances 0.000 title claims abstract description 5
- 238000004886 process control Methods 0.000 title description 3
- 239000004568 cement Substances 0.000 claims abstract description 80
- 238000000034 method Methods 0.000 claims abstract description 36
- 239000004615 ingredient Substances 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 238000012423 maintenance Methods 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 238000004381 surface treatment Methods 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 89
- 239000002689 soil Substances 0.000 claims description 37
- 239000002585 base Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 7
- 238000009472 formulation Methods 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 48
- 238000009434 installation Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E01C11/00—Details of pavings
- E01C11/16—Reinforcements
- E01C11/18—Reinforcements for cement concrete pavings
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/50—Removable forms or shutterings for road-building purposes; Devices or arrangements for forming individual paving elements, e.g. kerbs, in situ
- E01C19/502—Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes
-
- 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
- E01C23/03—Arrangements for curing paving; Devices for applying curing means; Devices for laying prefabricated underlay, e.g. sheets, membranes; Protecting paving under construction or while curing, e.g. use of tents
-
- 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
- E01C3/00—Foundations for pavings
-
- 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
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The application provides a construction process and a quality control method of a non-joint cement concrete pavement, belonging to the technical field of road construction, wherein the construction process comprises the steps of foundation treatment, benchmark setting, pouring, road surface treatment and pavement maintenance; during pouring, a first template assembly and a first supporting assembly are firstly installed on a foundation layer, and a first cement concrete to-be-poured ingredient is poured to form a bottom pouring body; installing a second template assembly and a second support assembly on the foundation layer, and pouring a high-ductility cement-based composite material to form a middle pouring body; removing the second template assembly, installing third support assemblies on two sides of the middle pouring body, and pouring a second cement concrete to-be-poured ingredient to form a top pouring body; removing the first template assembly; and according to the construction process, a quality control method is formulated; the construction process and the quality control method of the kerfless cement concrete pavement can improve the pavement evenness and stability and prolong the service life of the pavement.
Description
Technical Field
The application belongs to the technical field of road construction, and particularly relates to a construction process and a quality control method of a non-joint-cutting cement concrete pavement.
Background
The cement concrete pavement has the characteristics of good stability, high strength, good durability, good anti-skid performance and low maintenance cost, and can effectively improve the road quality, improve the road structural performance and prolong the service life of the road, so that the structure of the cement concrete pavement is adopted in modern rural road construction.
The road quality level influences the safety and comfort level of travelers, and at present, rural cement concrete roads often face the problems of low road surface flatness, low construction quality level and poor support stability, and frequent occurrence of the problems reduces the service life of the roads and increases the maintenance and repair cost of rural roads.
Disclosure of Invention
The application aims to provide a construction process and a quality control method of a kerfless cement concrete pavement, and aims to solve the technical problems of low flatness, poor support stability and low service life of the conventional cement concrete pavement.
In order to achieve the above purpose, the application adopts the following technical scheme:
in a first aspect, a construction process of a kerfless cement concrete pavement is provided, comprising the following steps:
s1, performing foundation treatment, namely performing multiple leveling and compaction treatment on a preset pavement area, and setting a foundation layer;
s2, setting a reference, and establishing a concrete pavement reference along the foundation layer; defining the extending direction of the road surface as a first direction, and defining the direction perpendicular to the first direction and parallel to the road surface as a second direction;
s3, installing a first template assembly and a first supporting assembly on the foundation layer; preparing a first cement concrete to-be-poured ingredient according to a preset proportion, and conveying the prepared first cement concrete to-be-poured ingredient in place; pouring a first cement concrete to-be-poured ingredient on the surface of the foundation layer along the first direction, and performing the procedures of paving, leveling and rolling to form a bottom pouring body;
s4, installing a second template assembly and a second supporting assembly on the foundation layer; preparing a high-ductility cement-based composite material according to a preset proportion, and conveying the prepared high-ductility cement-based composite material in place; pouring a high-ductility cement-based composite material in the middle of the bottom pouring body along the second direction, and performing paving, leveling and rolling procedures to form a middle pouring body extending along the first direction;
s5, removing the second template assembly, and installing third support assemblies on two sides of the middle pouring body; preparing a second cement concrete to-be-poured ingredient according to a preset proportion, and conveying the prepared second cement concrete to-be-poured ingredient in place; respectively pouring the second cement concrete to-be-poured ingredients on two sides of the middle pouring body, and performing the procedures of paving, leveling and rolling to form a top pouring body; removing the first template assembly;
s5, road surface treatment, namely cleaning road surface residues after the bottom casting body, the middle casting body and the top casting body are formed;
s6, pavement maintenance, wherein after the steps S3, S4 and S5 are completed, water spraying or film covering is carried out on the formed pouring body.
With reference to the first aspect, in one possible implementation manner, the setting a foundation layer in step S1 includes:
s11, paving an anti-deformation device on the leveled and compacted soil layer, and compacting the bottom soil base after filling the bottom soil base;
s12, filling functional soil base on the bottom soil base; the functional soil foundation comprises a saline-alkali soil layer, an upper soil layer and a gravel layer which are sequentially paved from bottom to top, and leveling and compacting treatment is performed after the saline-alkali soil layer, the upper soil layer and the gravel layer are paved.
Illustratively, the deformation preventing apparatus includes:
the two groups of side supports are arranged at intervals along the second direction and symmetrically distributed on two sides below the middle pouring body;
the support frame is arranged between the two groups of side supports, and two ends of the support frame are correspondingly connected with the two groups of side supports respectively.
With reference to the first aspect, in one possible implementation manner, the first support assembly includes:
the plurality of first support rods are arranged in the pouring space of the bottom pouring body in an array mode, and the lower ends of the first support rods extend downwards into the foundation layer;
the first connecting pieces are in one-to-one correspondence with the first supporting rods, and are clamped with the upper ends of the corresponding first supporting rods; the upper end of the first connecting piece is flush with the top surface of the bottom pouring body;
in step S4, the upper end of the first connecting member is used to connect with the second template assembly; in step S5, an upper end of the first connecting member is used to connect with the third supporting component.
Illustratively, in step S3, said installing the first template assembly and the first support assembly on the foundation layer further comprises: a sealing cover is covered on the top of the first connecting piece; in step S4, said installing a second template assembly and a second support assembly on said foundation layer further comprises: and removing the sealing cover.
In some embodiments, a limiting hole extending along the radial direction of the first supporting rod is formed in the upper end of the first supporting rod, a limiting block extending out of the first supporting rod along the radial direction of the first supporting rod is arranged in the limiting hole, one end of the limiting block, which is arranged in the limiting hole, is connected with an elastic piece, and the other end of the elastic piece is connected with the hole bottom of the limiting hole; the limiting block is used for being clamped in the first connecting piece.
Illustratively, the second template assembly includes:
two groups of templates extend along the first direction, and two ends of the templates are respectively connected with the first template component; the two groups of middle mold plates are used for enclosing a casting space of the middle casting body with the first mold plate assembly;
the plurality of groups of diagonal bracing pieces are in one-to-one correspondence with the plurality of first connecting pieces close to the middle template and are obliquely arranged along the vertical direction;
in step S4, the upper end of the diagonal brace is connected with the middle die plate, and the lower end of the diagonal brace is clamped with the corresponding first connecting piece.
Compared with the prior art, the scheme provided by the embodiment of the application has the advantages that the bottom casting body, the middle casting body and the top casting body are sequentially cast, so that the layered paving and flattening processes are carried out on the paved road surface, and the uniform and flat whole road surface is ensured; the first support component, the second support component and the third support component are supported, so that stable support of the casting body structures of all sections is realized, and meanwhile, the casting body structures of all sections are connected into a whole, so that irregular settlement and deflection of a pavement are avoided; the middle casting body is arranged between the top casting body and the bottom casting body, and the middle casting body is formed by casting the high-ductility cement-based composite material, so that tiny cracks in the pavement structure are concentrated in the middle casting body with smaller tensile strength, the overall supporting strength of the pavement is improved, and the service life of the pavement is prolonged.
In a second aspect, the present application further provides a quality control method according to the above-mentioned construction process for a kerfless cement concrete pavement, after the second template assembly and the second support assembly are installed, sprinkling water to the bottom casting body at the bottom of the casting space of the middle casting body, so as to perform humidification treatment, thereby forming a viscous first sliding surface on the top surface of the bottom casting body;
and after the third supporting component is installed, sprinkling water on two sides of the middle pouring body for humidification treatment, so that second sliding surfaces are formed on two sides of the middle pouring body.
In some embodiments, a layer of the first cement concrete formulation to be poured is laid on the first slip plane; and pouring a layer of the high-ductility cement-based composite material on the side part of the second sliding surface.
Illustratively, after installing the third support assembly, sprinkling water on the top of the middle casting body to perform humidification treatment, thereby forming a third sliding surface on the top of the middle casting body; the top surface of the second template component is lower than the top surface of the first template component;
and (5) paving a layer of second cement concrete to-be-poured ingredients on the third sliding surface to be connected with the second cement concrete to-be-poured ingredients poured on two sides of the middle pouring body in the step (S5).
The quality control method provided by the application is provided according to the construction process of the non-kerf cement concrete pavement, so that the quality control method has all the beneficial effects of the construction process of the non-kerf cement concrete pavement, can improve the evenness and stability of the pavement, prolong the service life of the pavement, and can improve the stability of connection between the middle casting body and the bottom casting body and avoid cracking at the connection interface of the middle casting body and the bottom casting body by arranging the first sliding surface.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a concrete pavement without cutting seams according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram II of a lancing-free cement concrete pavement according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first connecting member according to an embodiment of the present application;
fig. 4 is a schematic structural view of a first support rod according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an anti-deformation device according to an embodiment of the present application.
In the figure: 1. a foundation layer; 11. a bottom soil base; 111. an anti-deformation device; 1111. side support; 1112. a support frame; 12. functional soil base; 121. a saline-alkali soil layer; 122. an upper soil layer; 123. a gravel layer; 2. a first template assembly; 3. a first support assembly; 31. a first support bar; 311. a limiting hole; 312. a limiting block; 313. an elastic member; 32. a first connector; 33. sealing cover; 4. a second template assembly; 41. a middle template; 42. a diagonal bracing member; 5. a second support assembly; 51. a horizontal connecting rod; 52. a second connector; 53. a second support bar; 6. a third support assembly; 7. casting a bottom; 71. a first slip plane; 8. casting a body in the middle; 81. a second slip plane; 82. a third slip plane; 9. and (5) pouring a body at the top.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or be indirectly on the other element. It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a number" is two or more, unless explicitly defined otherwise.
For ease of understanding, the direction of arrow B in fig. 1 is used as the second direction, and the direction of arrow a in fig. 5 is used as the first direction in the present application.
Referring to fig. 1 to 5 together, the construction process and quality control method of the lancing-free cement concrete pavement according to the present application will now be described. The construction process of the non-joint cement concrete pavement comprises the following steps:
s1, performing foundation treatment, namely performing multiple leveling and compaction treatment on a preset pavement area, and setting a foundation layer 1;
s2, setting a standard, and establishing a concrete pavement standard along the foundation layer 1; defining the extending direction of the road surface as a first direction, and defining the direction perpendicular to the first direction and parallel to the road surface as a second direction;
s3, installing a first template assembly 2 and a first supporting assembly 3 on the foundation layer 1; preparing a first cement concrete to-be-poured ingredient according to a preset proportion, and conveying the prepared first cement concrete to-be-poured ingredient in place; casting a first cement concrete to-be-cast ingredient on the surface of the foundation layer 1 along a first direction, and performing the steps of paving, leveling and rolling to form a bottom casting body 7;
s4, installing a second template assembly 4 and a second supporting assembly 5 on the foundation layer 1; preparing a high-ductility cement-based composite material according to a preset proportion, and conveying the prepared high-ductility cement-based composite material in place; pouring a high-ductility cement-based composite material in the middle of the bottom pouring body 7 along the second direction, and performing paving, leveling and rolling procedures to form a middle pouring body 8 extending along the first direction;
s5, removing the second template assembly 4, and installing third support assemblies 6 on two sides of the middle pouring body 8; preparing a second cement concrete to-be-poured ingredient according to a preset proportion, and conveying the prepared second cement concrete to-be-poured ingredient in place; respectively pouring second cement concrete to-be-poured ingredients on two sides of the middle pouring body 8, and performing the procedures of paving, leveling and rolling to form a top pouring body 9; removing the first template assembly 2;
s5, road surface treatment, namely cleaning residues of the road surface after forming a bottom casting body 7, a middle casting body 8 and a top casting body 9;
s6, pavement maintenance, wherein after the steps S3, S4 and S5 are completed, water spraying or film covering is carried out on the formed pouring body.
It should be noted that, the tensile strength of the high-ductility cement-based composite material adopted in the application is smaller than that of the cement concrete to-be-poured ingredients, after the pouring is completed, fine cracks generated in the pavement structure are beneficial to be concentrated in the middle pouring body of the high-ductility cement-based composite material pouring, and the blending proportion and the blending mode of the high-ductility cement-based composite material and the cement concrete to-be-poured ingredients belong to the prior art and are not repeated herein.
Compared with the prior art, the construction process of the kerfless cement concrete pavement provided by the application has the advantages that the bottom pouring body 7, the middle pouring body 8 and the top pouring body 9 are sequentially poured, so that the layered paving and flattening processes of the paved pavement are carried out, and the uniform and flat overall pavement is ensured; the first support component 3, the second support component 5 and the third support component 6 are supported, so that stable support of the casting body structures of each section is realized, and meanwhile, the casting body structures of each section are connected into a whole, so that irregular settlement and deflection of a pavement are avoided; through set up middle part and pour the body 8 between the body 9 and the bottom of pouring of top pouring 7 to adopt high ductility cement base combined material to pour and form middle part and pour the body 8, so that tiny crack in the road surface structure concentrates in the middle part that tensile strength is less and pour the body 8, thereby improves the holistic supporting strength of road surface, prolongs the life of road surface.
Referring to fig. 1 and 2, in some possible embodiments, the setting foundation layer 1 in step S1 includes:
s11, paving an anti-deformation device 111 on the leveled and compacted soil layer, and compacting the bottom soil foundation 11 after burying the bottom soil foundation 11;
s12, filling functional soil base 12 on the bottom soil base 11; the functional soil base 12 includes a saline-alkali soil layer 121, an upper soil layer 122 and a gravel layer 123 sequentially laid from bottom to top, and is subjected to leveling and compacting treatment after the saline-alkali soil layer 121, the upper soil layer 122 and the gravel layer 123 are laid.
By arranging the bottom soil foundation 11 and arranging the deformation preventing device 111 in the bottom soil foundation 11, the support stability of the bottom soil foundation 11 is improved; by arranging a plurality of functional layers, the drainage and fixation requirements of the foundation layer 1 are met.
Referring to FIG. 5, an exemplary deformation preventing device 111 includes two sets of side braces 1111 and a support frame 1112; the two groups of side supports 1111 are arranged at intervals along the second direction and symmetrically distributed on two sides below the middle pouring body 8; the supporting frame 1112 is disposed between the two sets of side supports 1111, and two ends of the supporting frame 1112 are respectively connected to the two sets of side supports 1111.
By arranging two groups of side supports 1111, the stability of the foundation layer 1 on the structural support of the road surface is improved; specifically, when the vehicle travels on the road surface, the travel path of the tire is the same as the extending direction of the side stay 1111, and the stable support of the vehicle can be realized through the side stay 1111 structure, so that the strength of the whole road is improved, and the sedimentation of the road surface at the travel track of the tire is avoided.
Specifically, the first template component 2 comprises side templates which are arranged around the bottom pouring body 7 and the top pouring body 9 in a surrounding manner and fixing devices for fixing and supporting the side templates; optionally, channel steel components are respectively selected as side templates at two sides of the pavement structure along the second direction, or roadbed is arranged at two sides of the pavement structure, and casting spaces of the bottom casting body 7 and the top casting body 9 are defined by the roadbed at two sides of the pavement structure along the second direction and the side templates at two sides of the pavement structure along the first direction.
Referring to fig. 1 and 2, in some possible embodiments, the first support assembly 3 includes a plurality of first support rods 31 and a plurality of first connectors 32; the plurality of first support rods 31 are arranged in the casting space of the bottom casting body 7 in an array manner, and the lower ends of the first support rods 31 extend downwards into the foundation layer 1; the first connecting pieces 32 are in one-to-one correspondence with the first supporting rods 31, and the first connecting pieces 32 are clamped with the upper ends of the corresponding first supporting rods 31; the upper end of the first connecting piece 32 is flush with the top surface of the bottom pouring body 7; wherein, in step S4, the upper end of the first connecting piece 32 is used for connecting with the second template assembly 4; in step S5, the upper end of the first connector 32 is used to connect with the third support assembly 6.
It should be noted that, before pouring the bottom pouring body 7, the first supporting rod 31 needs to be fixed in the foundation layer 1, the first connecting piece 32 is fixed at the upper end of the first supporting rod 31, and the height of the top surface of the first connecting piece 32 is equal to the preset height of the bottom pouring body 7, so as to avoid the interference of the first supporting component 3 on the spreading and flattening process.
Specifically, the third support assembly 6 includes a plurality of third support rods, and a first connecting piece 32 is correspondingly connected to the lower end of each support rod, and the upper end of each support rod extends into the casting space of the top casting body 9, so as to enhance the connection strength between the top casting body 9 and the bottom casting body 7.
Specifically, the second support assembly 5 includes a horizontal connection rod 51, a second connection piece 52, and a second support rod 53; the plurality of horizontal connecting rods 51 are arranged at intervals along the first direction, and the horizontal connecting rods 51 are all arranged in the middle casting body 8 in a penetrating manner along the second direction and are used for enhancing the connection strength between the middle casting body 8 and the top casting bodies 9 on two sides; the horizontal connecting rod 51 is arranged in the second connecting piece 52 in a penetrating manner, the second connecting piece 52 is further used for connecting the second supporting rod 53, and the lower end of the second supporting rod 53 is used for being clamped in the corresponding first connecting piece 32 so as to enhance the connection strength between the middle casting body 8 and the bottom casting body 7.
In step S4, the first connector 32 is used to connect with the diagonal strut 42 in the second template assembly 4 to enhance the support strength of the second template assembly 4; in step S5, the upper end of the first connecting member 32 is used for connecting with the third support member 6, so as to enhance the connection strength between the top casting body 9 and the bottom casting body 7, and improve the tensile strength of the pavement structure.
It should be understood that the above-mentioned installation of the first template assembly 2 and the first support assembly 3 on the foundation layer 1 includes the installation of the side templates, the fixing means of the side templates, the first support rods 31 and the first connection members 32; the above-described installation of the second template assembly 4 and the second support assembly 5 on the foundation layer 1 includes the installation of the middle template 41, the diagonal bracing 42, the horizontal connecting rod 51, the second connecting member 52 and the second support rod 53.
Illustratively, in step S3, the above-mentioned installing the first template assembly 2 and the first support assembly 3 on the foundation layer 1 further includes: a sealing cover 33 is covered on the top of the first connecting piece 32; in step S4, the above-mentioned installation of the second template assembly 4 and the second support assembly 5 on the foundation layer 1 further includes: the sealing cap 33 is removed.
By covering the sealing cover 33, the top of the first connecting cover is prevented from being blocked when the first cement concrete material is poured; and removing the sealing cap 33 when the second support and the second template assembly 4 are installed to avoid interference of the sealing cap 33 with the installation of the second template assembly 4 and the second support assembly 5.
Referring to fig. 3, in some embodiments, a limiting hole 311 extending along a radial direction of the first supporting rod 31 is provided at an upper end of the first supporting rod 31, a limiting block 312 extending out of the first supporting rod 31 along the radial direction of the first supporting rod 31 is provided in the limiting hole 311, one end of the limiting block 312 disposed in the limiting hole 311 is connected with an elastic member 313, and the other end of the elastic member 313 is connected with a bottom of the limiting hole 311; the limiting block 312 is configured to be clamped in the first connecting piece 32.
The limiting block 312 and the elastic piece 313 are arranged, so that the clamping connection between the first supporting rod 31 and the first connecting piece 32 is conveniently realized; optionally, the lower end of the first connecting piece 32 is clamped with the corresponding first supporting rod 31, and the upper end is clamped with the corresponding second supporting rod 53, the corresponding third supporting rod or the corresponding diagonal member 42.
Referring to fig. 2, the second die plate assembly 4 illustratively includes two sets of intermediate die plates 41 and multiple sets of diagonal members 42; the two groups of middle mold plates 41 extend along the first direction, and two ends of the middle mold plates are respectively connected with the first mold plate assembly 2; the two groups of middle templates 41 are used for enclosing a casting space of the middle casting body 8 with the first template component 2; the plurality of groups of diagonal bracing pieces 42 are in one-to-one correspondence with the plurality of first connecting pieces 32 close to the middle template 41 and are obliquely arranged along the vertical direction; in step S4, the upper end of the diagonal brace 42 is connected to the middle mold plate 41, and the lower end is engaged with the corresponding first connecting member 32.
The middle mold plates 41 and the first mold plate assembly 2 in the two groups enclose a casting space of the middle casting body 8, and diagonal bracing pieces 42 are used for reinforcing the support of the middle mold plates 41 to prevent the middle mold plates 41 from deflecting, so that irregular bulges on the side surfaces of the middle casting body 8 are avoided.
Referring to fig. 1 and 2, the present application further provides a quality control method according to the above-mentioned construction process of a non-kerf cement concrete pavement, after installing the second template assembly 4 and the second support assembly 5, sprinkling water on the bottom casting body 7 at the bottom of the casting space of the middle casting body 8 for humidification treatment, so as to form a viscous first sliding surface 71 on the top surface of the bottom casting body 7; after the third support assembly 6 is installed, water is sprayed to both sides of the middle casting body 8 to be humidified, thereby forming second slip planes 81 at both sides of the middle casting body 8.
The first sliding surface 71 is arranged to realize the connection of the bottom pouring body 7 and the middle pouring body 8, so that cracks are prevented from being formed at the connection part of the bottom pouring body 7 and the middle pouring body 8, and the stability of a pavement structure is prevented from being influenced; through setting up the second slip plane 81 to strengthen the joint strength of top casting body 9 and middle part casting body 8, avoid forming the crack in the junction between them, influence the stability of road surface structure.
Referring to fig. 1 and 2, in some possible embodiments, a layer of a first cement concrete formulation to be poured is laid on the first slip plane 71; a layer of high-ductility cement-based composite material is poured on the side of the second slip plane 81.
The connection strength of the bottom casting body 7 and the middle casting body 8 is further enhanced by laying a layer of first cement concrete to-be-cast ingredients on the first slip plane 71 and then casting the high-ductility cement-based composite material. The strength of the connection of the middle casting 8 and the top casting 9 is enhanced by casting a high-ductility cement-based composite material on the second slip plane 81.
Referring to fig. 1 and 2, in some embodiments, after the third support assembly 6 is installed, water is sprayed on the top of the middle casting 8 to perform a wetting treatment, so as to form a third sliding surface 82 on the top of the middle casting 8; the top surface of the second template assembly 4 is lower than the top surface of the first template assembly 2; wherein, in step S5, a layer of second cement concrete to-be-poured ingredients is laid on the third sliding surface 82 so as to be connected with the second cement concrete to-be-poured ingredients poured on both sides of the middle pouring body 8.
The connection strength between the top casting bodies 9 located on both sides of the middle casting body 8 is improved by making the top surface of the second formwork assembly 4 lower than the top surface of the first formwork assembly 2 so as to cast the second cement concrete formulation to be cast on the third slip plane 82.
The middle part of the bottom pouring body 7 along the second direction is provided with a guiding seam extending upwards to the bottom of the middle pouring body 8, and the arrangement mode and the working principle of the guiding seam belong to the prior art, and are not described herein. .
The quality control method provided by the application is provided according to the construction process of the non-kerfed cement concrete pavement, so that the quality control method has all the beneficial effects of the construction process of the non-kerfed cement concrete pavement, can improve the evenness and stability of the pavement, prolong the service life of the pavement, and can improve the stability of connection between the middle casting body 8 and the bottom casting body 7 and avoid cracking at the connection interface of the middle casting body 8 and the bottom casting body 7 by arranging the first sliding surface 71.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (10)
1. The construction process of the non-joint cement concrete pavement is characterized by comprising the following steps of:
s1, performing foundation treatment, namely performing multiple leveling and compaction treatment on a preset pavement area, and setting a foundation layer;
s2, setting a reference, and establishing a concrete pavement reference along the foundation layer; defining the extending direction of the road surface as a first direction, and defining the direction perpendicular to the first direction and parallel to the road surface as a second direction;
s3, installing a first template assembly and a first supporting assembly on the foundation layer; preparing a first cement concrete to-be-poured ingredient according to a preset proportion, and conveying the prepared first cement concrete to-be-poured ingredient in place; pouring a first cement concrete to-be-poured ingredient on the surface of the foundation layer along the first direction, and performing the procedures of paving, leveling and rolling to form a bottom pouring body;
s4, installing a second template assembly and a second supporting assembly on the foundation layer; preparing a high-ductility cement-based composite material according to a preset proportion, and conveying the prepared high-ductility cement-based composite material in place; pouring a high-ductility cement-based composite material in the middle of the bottom pouring body along the second direction, and performing paving, leveling and rolling procedures to form a middle pouring body extending along the first direction;
s5, removing the second template assembly, and installing third support assemblies on two sides of the middle pouring body; preparing a second cement concrete to-be-poured ingredient according to a preset proportion, and conveying the prepared second cement concrete to-be-poured ingredient in place; respectively pouring the second cement concrete to-be-poured ingredients on two sides of the middle pouring body, and performing the procedures of paving, leveling and rolling to form a top pouring body; removing the first template assembly;
s5, road surface treatment, namely cleaning road surface residues after the bottom casting body, the middle casting body and the top casting body are formed;
s6, pavement maintenance, wherein after the steps S3, S4 and S5 are completed, water spraying or film covering is carried out on the formed pouring body.
2. The jointless cement concrete pavement construction process according to claim 1, wherein said disposing the foundation layer in step S1 comprises:
s11, paving an anti-deformation device on the leveled and compacted soil layer, and compacting the bottom soil base after filling the bottom soil base;
s12, filling functional soil base on the bottom soil base; the functional soil foundation comprises a saline-alkali soil layer, an upper soil layer and a gravel layer which are sequentially paved from bottom to top, and leveling and compacting treatment is performed after the saline-alkali soil layer, the upper soil layer and the gravel layer are paved.
3. The jointless cement concrete pavement construction process according to claim 2, wherein the deformation preventing means comprises:
the two groups of side supports are arranged at intervals along the second direction and symmetrically distributed on two sides below the middle pouring body;
the support frame is arranged between the two groups of side supports, and two ends of the support frame are correspondingly connected with the two groups of side supports respectively.
4. The jointless cement concrete pavement construction process of claim 1, wherein the first support assembly includes:
the plurality of first support rods are arranged in the pouring space of the bottom pouring body in an array mode, and the lower ends of the first support rods extend downwards into the foundation layer;
the first connecting pieces are in one-to-one correspondence with the first supporting rods, and are clamped with the upper ends of the corresponding first supporting rods; the upper end of the first connecting piece is flush with the top surface of the bottom pouring body;
in step S4, the upper end of the first connecting member is used to connect with the second template assembly; in step S5, an upper end of the first connecting member is used to connect with the third supporting component.
5. The jointless cement concrete pavement construction process of claim 4, wherein in step S3, said installing a first formwork assembly and a first support assembly on said foundation layer further comprises: a sealing cover is covered on the top of the first connecting piece; in step S4, said installing a second template assembly and a second support assembly on said foundation layer further comprises: and removing the sealing cover.
6. The construction process of the joint-free cement concrete pavement according to claim 5, wherein the upper end of the first supporting rod is provided with a limiting hole extending along the radial direction of the first supporting rod, a limiting block extending out of the first supporting rod along the radial direction of the first supporting rod is arranged in the limiting hole, one end of the limiting block, which is arranged in the limiting hole, is connected with an elastic piece, and the other end of the elastic piece is connected with the hole bottom of the limiting hole; the limiting block is used for being clamped in the first connecting piece.
7. The jointless cement concrete pavement construction process of claim 6, wherein the second template assembly includes:
two groups of templates extend along the first direction, and two ends of the templates are respectively connected with the first template component; the two groups of middle mold plates are used for enclosing a casting space of the middle casting body with the first mold plate assembly;
the plurality of groups of diagonal bracing pieces are in one-to-one correspondence with the plurality of first connecting pieces close to the middle template and are obliquely arranged along the vertical direction;
in step S4, the upper end of the diagonal brace is connected with the middle die plate, and the lower end of the diagonal brace is clamped with the corresponding first connecting piece.
8. The quality control method of the kerfless cement concrete pavement construction process of any one of claims 1 to 7, characterized in that after the second formwork assembly and the second support assembly are installed, sprinkling water to the bottom casting body at the bottom of the casting space of the middle casting body for humidification treatment so as to form a viscous first slip plane on the top surface of the bottom casting body;
and after the third supporting component is installed, sprinkling water on two sides of the middle pouring body for humidification treatment, so that second sliding surfaces are formed on two sides of the middle pouring body.
9. The quality control method of the kerfless cement concrete pavement construction process of claim 8, wherein a layer of the first cement concrete formulation to be poured is laid on the first slip plane; and pouring a layer of the high-ductility cement-based composite material on the side part of the second sliding surface.
10. The quality control method of the jointless cement concrete pavement construction process according to claim 9, wherein after the third support assembly is installed, water is sprayed on the top of the middle casting body for humidification treatment, thereby forming a third slip plane on the top of the middle casting body; the top surface of the second template component is lower than the top surface of the first template component;
and (5) paving a layer of second cement concrete to-be-poured ingredients on the third sliding surface to be connected with the second cement concrete to-be-poured ingredients poured on two sides of the middle pouring body in the step (S5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310579642.0A CN116463906B (en) | 2023-05-22 | 2023-05-22 | Construction process and quality control method of non-joint cement concrete pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310579642.0A CN116463906B (en) | 2023-05-22 | 2023-05-22 | Construction process and quality control method of non-joint cement concrete pavement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116463906A CN116463906A (en) | 2023-07-21 |
| CN116463906B true CN116463906B (en) | 2023-10-13 |
Family
ID=87173801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310579642.0A Active CN116463906B (en) | 2023-05-22 | 2023-05-22 | Construction process and quality control method of non-joint cement concrete pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116463906B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276651A (en) * | 2013-05-06 | 2013-09-04 | 清华大学 | No-cutting-seam cement concrete pavement structure and construction method thereof |
| JP6051497B1 (en) * | 2016-06-08 | 2016-12-27 | 株式会社サンブリッジ | Inorganic material construction method |
| CN106835884A (en) * | 2017-01-02 | 2017-06-13 | 浙江泛华工程监理有限公司 | A kind of permanent roadbed construction method of highly filled road |
| CN107761501A (en) * | 2017-10-26 | 2018-03-06 | 浙江园冶生态建设有限公司 | A kind of road construction method |
| CN111021177A (en) * | 2019-12-04 | 2020-04-17 | 东南大学 | High-ductility cement-based material based seamless cement pavement structure and construction method and application thereof |
| CN114960331A (en) * | 2022-06-30 | 2022-08-30 | 西安建筑科技大学 | Rigid-flexible composite pavement structure and construction method thereof |
| WO2023065611A1 (en) * | 2021-10-21 | 2023-04-27 | 上海建工五建集团有限公司 | Concrete shrinkage theory-based building floor crack-resistant method |
-
2023
- 2023-05-22 CN CN202310579642.0A patent/CN116463906B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103276651A (en) * | 2013-05-06 | 2013-09-04 | 清华大学 | No-cutting-seam cement concrete pavement structure and construction method thereof |
| JP6051497B1 (en) * | 2016-06-08 | 2016-12-27 | 株式会社サンブリッジ | Inorganic material construction method |
| CN106835884A (en) * | 2017-01-02 | 2017-06-13 | 浙江泛华工程监理有限公司 | A kind of permanent roadbed construction method of highly filled road |
| CN107761501A (en) * | 2017-10-26 | 2018-03-06 | 浙江园冶生态建设有限公司 | A kind of road construction method |
| CN111021177A (en) * | 2019-12-04 | 2020-04-17 | 东南大学 | High-ductility cement-based material based seamless cement pavement structure and construction method and application thereof |
| WO2023065611A1 (en) * | 2021-10-21 | 2023-04-27 | 上海建工五建集团有限公司 | Concrete shrinkage theory-based building floor crack-resistant method |
| CN114960331A (en) * | 2022-06-30 | 2022-08-30 | 西安建筑科技大学 | Rigid-flexible composite pavement structure and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116463906A (en) | 2023-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106958186A (en) | The construction method of bridge floor body, bridge and bridge | |
| CN109853381A (en) | A kind of transition structure and its construction method preventing and treating bumping at bridge-head | |
| CN112211113A (en) | Cast-in-place construction method for large-span diamond-shaped bent cap of high pier | |
| CN107090908A (en) | A kind of new vertical prefabricated components joint connecting method | |
| CN116463906B (en) | Construction process and quality control method of non-joint cement concrete pavement | |
| KR20170002008A (en) | Improved technique of railway track ballast operation | |
| CN114687260B (en) | Assembly type track construction method and assembly type track structure | |
| CN215887801U (en) | Anti-cracking asphalt concrete combined road surface structure | |
| JP3778335B2 (en) | Laying method of high-strength reinforced concrete precast plate | |
| CN110172885A (en) | Highway Construction in Desert method | |
| CN104929012A (en) | Construction method for basalt brick road and tile road of skid pad | |
| CN107905115A (en) | Through Steel pipe concrete truss combination beamss bridge construction method | |
| CN210262550U (en) | Asphalt pavement structure based on cement pavement | |
| CN114277672A (en) | Large-span prestressed concrete bent cap structure and construction method thereof | |
| CN210482008U (en) | Take seamless bridge approach plate structure of X type reinforcing bar | |
| CN107034759A (en) | Steel plate road pavement structure and construction method | |
| CN212533577U (en) | A concretion structure for soft soil highway section foundation | |
| CN218404953U (en) | Cement pouring equipment | |
| JP4010388B2 (en) | High-strength reinforced concrete precast plate | |
| CN220954401U (en) | Rigid terrace construction structure | |
| CN217460186U (en) | High-bearing grass planting terrace construction assembly | |
| CN113202021B (en) | Method for erecting track for paving ultrahigh-performance concrete on bridge steel bridge deck | |
| CN115816615B (en) | Manufacturing and mounting method of ballastless track plate | |
| CN219731496U (en) | Widening structure | |
| CN218815254U (en) | Frame post secondary pouring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |