CN110983894A - Prefabricated assembled concrete pavement and construction method - Google Patents
Prefabricated assembled concrete pavement and construction method Download PDFInfo
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- CN110983894A CN110983894A CN201911342286.0A CN201911342286A CN110983894A CN 110983894 A CN110983894 A CN 110983894A CN 201911342286 A CN201911342286 A CN 201911342286A CN 110983894 A CN110983894 A CN 110983894A
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- 238000010276 construction Methods 0.000 title claims abstract description 69
- 239000004567 concrete Substances 0.000 title claims abstract description 46
- 239000010410 layer Substances 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000004873 anchoring Methods 0.000 claims abstract description 28
- 239000002344 surface layer Substances 0.000 claims abstract description 19
- 210000002435 tendon Anatomy 0.000 claims abstract description 19
- 230000007704 transition Effects 0.000 claims abstract description 18
- 238000003780 insertion Methods 0.000 claims abstract description 8
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 230000035515 penetration Effects 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims description 75
- 229910000831 Steel Inorganic materials 0.000 claims description 74
- 230000002787 reinforcement Effects 0.000 claims description 56
- 238000005096 rolling process Methods 0.000 claims description 37
- 230000000149 penetrating effect Effects 0.000 claims description 30
- 239000002689 soil Substances 0.000 claims description 11
- 238000012937 correction Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 229910000851 Alloy steel Inorganic materials 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000011376 self-consolidating concrete Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
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- 239000004575 stone Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- E01C5/00—Pavings made of prefabricated single units
-
- 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
-
- 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
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
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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
- 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
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/42—Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating
-
- 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
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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
- E01C5/00—Pavings made of prefabricated single units
- E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a prefabricated assembled concrete pavement and a construction method, wherein a prefabricated pier foundation and a pier top positioning plate are adopted to provide support for a platform slide rail and a pavement side mold, and a platform slide beam can provide support for a scraper supporting beam and a vibration supporting beam; adopting an oblique prestressed lacing wire; when the cast-in-place surface layer is cast, casting vibration and surface scraping can be synchronously carried out; adopting an insertion type vibrating rod and a plane vibrator to carry out concrete vibrating construction; the jig frame vertical mould is connected with the jig frame bottom plate through a vertical mould rotating hinge; a ductile transition layer is arranged between the prefabricated panel and the pavement base layer; the construction of hoisting the prefabricated panel is carried out by combining a rigid suspender and a special-shaped supporting plate; the pre-stressed tendon penetration pipe is internally provided with a penetration positioning tendon, and the prefabricated panel can be accurately controlled by a position control body cross brace and a position control body vertical brace; the anchoring groove closing body is made of micro-expansion concrete material. The invention can reduce the difficulty of cast-in-place surface layer pouring and prefabricated panel hoisting and positioning construction and improve the stress performance of a pavement structure.
Description
Technical Field
The invention relates to a prefabricated assembled concrete pavement and a construction method, which can reduce the difficulty of cast-in-place surface layer pouring and prefabricated panel positioning construction and improve the stress performance of a pavement structure, belong to the field of road engineering and are suitable for prefabricated assembled concrete pavement engineering.
Background
The prefabricated assembled concrete pavement is widely applied to construction all over the country due to the advantages of short construction period, high repeated utilization rate, convenience in construction, maintenance, repair and construction and the like. However, because the assembled concrete pavement slab is a prefabricated member, the connection strength and the integral stress performance among the members are often the key points and difficulties of engineering control.
In the prior art, a construction process for prefabricating an assembled cement concrete pavement is provided, wherein a template is rigidly supported, a dowel bar is embedded at one end of the template in the prefabricating process of the template, and a dowel bar groove is prefabricated at the other end of the template. During assembly construction, the groove with the dowel bar is lapped on the dowel bar pre-buried in the adjacent plate. Although the construction method can solve the problem of connection between plates, the overall performance of the structure is improved, the prefabricated plates are accurately positioned, and the connection between the prefabricated components and the cast-in-place plates can be further improved.
In view of this, in order to improve the application range and the stress performance of the prefabricated assembled concrete pavement, the invention of the prefabricated assembled concrete pavement and the construction method thereof is urgently needed, which can reduce the difficulty of cast-in-place surface layer pouring and prefabricated panel hoisting and positioning construction, improve the stress performance of the pavement and improve the construction quality.
Disclosure of Invention
The invention aims to provide a prefabricated assembly type concrete pavement and a construction method, which can reduce the construction difficulty, improve the installation and positioning accuracy of components and enable the stress of the pavement to be more uniform.
The technical scheme provides a construction method of a prefabricated assembled concrete pavement, which comprises the following construction steps:
1) construction preparation: filling construction of the pavement base layer (2) is carried out on the compacted foundation soil body (1), and the compaction degree of the pavement base layer (2) is controlled according to design requirements; preparing materials and devices required by construction;
2) setting up a sliding construction platform: inserting the prefabricated pier foundation (3) into the hole in the foundation soil body (1); placing the pier top positioning plate (5) on the upper part of the prefabricated pier foundation (3), and controlling the elevation of the top surface of the prefabricated pier foundation through the pier top aligning body (15); the pier top groove plate (9) is arranged on the pier top positioning plate (5), the platform slide rail (13) is arranged in a slide rail connecting groove (8) on the upper surface of the pier top groove plate (9), so that the slide roller (12) on the lower surface of the slide supporting plate (11) is embedded in a slide rail (14) of the platform slide rail (13), and the upper surface of the slide supporting plate (11) is provided with a platform slide beam (7);
3) the road surface side form is erected: the pavement side mold (16) is arranged on a pavement base layer (2), one side of the pavement side mold (16) close to a pier top groove plate (9) is provided with a vertical position correcting bolt (17) and a transverse position correcting bolt (18), and the spatial position of the pavement side mold (16) is controlled through the vertical position correcting bolt (17) and the transverse position correcting bolt (18);
4) the prestressed tendons are arranged in a penetrating way through the pipe: arranging anchoring groove plates (19) on the inner sides of the pavement side molds (16), and arranging prestressed tendon penetration pipes (20) between the anchoring groove plates (19) along the direction obliquely crossed with the pavement side molds (16);
5) pouring a cast-in-place surface layer: checking the transverse position of the road surface side mold (16); along the sliding direction, a scraper supporting beam (21) and a vibrating supporting beam (22) are respectively arranged on two sides of a platform sliding beam (7), and the vibrating supporting beam (22) is arranged in front of the scraper supporting beam (21); a vibrating plate connecting rod (23) is arranged on the vibrating support beam (22), and an elastic connecting plate (25) is arranged between the vibrating plate connecting rod (23) and the plane vibrating plate (24); a vibrating top beam (26) vertical to the vibrating support beam is welded on the lower surface of the vibrating support beam (22), and an inserting tamping control body (27) and a vibrating tamper connecting plate (28) are sequentially arranged on the lower surface of the vibrating top beam (26); a vibrating connecting layer (29) is arranged on the lower surface of the plane vibrating plate (24), and a plane vibrator (30) is arranged on the upper surface; a vibrating rod connecting groove (31) is arranged on the lower surface of the vibrating rod connecting plate (28), an insertion type vibrating rod (32) is inserted into the vibrating rod connecting groove (31), and the insertion type vibrating rod (32) is firmly connected with the vibrating rod connecting groove (31) through a vibrating rod connecting body (33); the lower surface of the scraper supporting beam (21) is provided with a residual material collecting box (34), and the scraper supporting beam (21) is connected with the leveling transverse plate (35) through a scraper positioning rod (36); a residual material discharge pipe (37) is arranged between the leveling transverse plate (35) and the residual material collecting box (34), and a scraping leveling plate (38) which is flush with the bottom surface of the residual material discharge pipe is arranged at the lower part of the residual material discharge pipe; pouring construction of a cast-in-place surface layer (80) is carried out along the sliding direction;
6) preparing a prefabricated panel: a jig frame vertical mould (40) is arranged on a jig frame bottom plate (39), the jig frame bottom plate (39) is connected with the jig frame vertical mould (40) through a vertical mould rotating hinge (41), and a panel reinforcement cage (42) is arranged between the jig frame vertical moulds (40); the jig frame upright post (81) is arranged on the jig frame bottom plate (39), the jig frame upright post (81) is provided with a jig frame cross beam (45), and the jig frame cross beam (45) is provided with a reinforcement cage hanging rod (47) connected with a reinforcement cage stirrup (46); after the spatial position of the jig frame vertical mold (40) is corrected, a prefabricated panel (52) is poured into a space formed by the jig frame vertical mold (40) and a jig frame bottom plate (39) in an enclosed mode, and after concrete is poured to the height of a prestress penetrating pipe, the constraint of a steel reinforcement cage hanger rod (47) on a steel reinforcement cage stirrup (46) is removed;
7) paving a ductile transition layer: paving the ductile transition layer (51) on the upper surface of the pavement base layer (2), and strictly controlling the top surface flatness and elevation of the ductile transition layer (51);
8) hoisting and positioning the prefabricated panel: inserting the special-shaped supporting plate (54) at the bottom end of the rigid suspender (53) into a supporting plate connecting groove (77) at the bottom end of a hoisting connecting pipe (76), wherein the hoisting connecting pipe (76) is arranged on the bed-jig bottom plate (39), and then connecting the flexible sling (55) at the top end of the rigid suspender (53) with a sling connecting ring (56); arranging a penetrating positioning rib (57) and a positioning rib connecting rope (58) in a prestressed rib penetrating pipe (20) facing a panel reinforcement cage (42), and enabling the penetrating positioning rib (57) to correspond to the vertical deformation joint (59) of the prefabricated panel (52); connecting external hoisting equipment with a sling connecting ring (56), hoisting the prefabricated panel (52) to a ductility transition layer (51), and correcting the spatial position of the prefabricated panel (52) through a position control body cross brace (60) and a position control body vertical brace (61);
9) constructing a deformation joint filling body: grouting platform plates (62) are respectively arranged on two sides of the vertical deformation joint (59) of the prefabricated panel (52), one end of a joint grouting pipe (67) penetrates through a grouting airtight plate (66) and then is inserted into the vertical deformation joint (59), the other end of the joint grouting pipe is connected with external grouting equipment, and a deformation joint filling body (68) is constructed;
10) tensioning the prestressed lacing wire: after the deformation joint filling body (68) forms strength, the prestressed lacing wire (86) is arranged in the prestressed tendon penetrating pipe (20) in a penetrating mode, the anchoring groove plate (19) is used as a tensioning support body, and pre-tensioning tension is applied to the prestressed lacing wire (86);
11) constructing an anchoring groove closing body: wall-adhering steel moulds (69) are erected on two sides of the cast-in-place surface layer (80) and the prefabricated panel (52) synchronously, and an anchoring groove closing body (70) is poured into a cavity formed by enclosing the wall-adhering steel moulds (69) and the anchoring groove plate (19).
According to another aspect, a precast fabricated concrete pavement is provided, constructed according to a construction method thereon.
Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:
(1) the prefabricated pier foundation and the pier top position adjusting plate are adopted to provide support for the platform slide rail and the road surface side die, so that the difficulty in laying and correcting the platform slide rail and the road surface side die is reduced; meanwhile, the platform sliding beam can slide along the platform sliding rail, and can provide support for the scraper supporting beam and the vibrating supporting beam, so that the difficulty in laying a cast-in-place surface layer pouring construction system is reduced.
(2) The invention adopts the oblique prestressed lacing wire and provides support for prestressed tensioning through the anchoring groove plate, thereby improving the stress performance of cast-in-place surface course and prefabricated panel.
(3) The vibrating supporting beam and the scraper supporting beam can synchronously carry out pouring vibration and surface scraping of a cast-in-place surface layer along the sliding direction, so that the field construction procedures are reduced; meanwhile, the construction of vibrating a cast-in-place surface layer is carried out by adopting the cooperation of the inserted vibrating rod and the plane vibrator, so that the difficulty of vibrating construction is reduced; the scraper leveling plate is arranged to help reduce the difficulty of leveling the plane slippage and elevation control of the transverse plate.
(4) The jig frame vertical mold is connected with the jig frame bottom plate through the vertical mold rotating hinge, so that the difficulty of the erection and the removal construction of the jig frame vertical mold can be effectively reduced; the cross section of the hoisting connecting pipe is oval, and the bottom end of the hoisting connecting pipe is provided with a supporting plate connecting groove, so that the difficulty of hoisting construction of the prefabricated panel can be reduced; the setting of steel reinforcement cage jib has reduced the degree of difficulty of panel steel reinforcement cage location when prefabricated panel concrete placement.
(5) The ductile transition layer is arranged between the prefabricated panel and the pavement base layer, so that vibration can be reduced, and the stress of the prefabricated panel is more consistent with the theory of the elastic thin plate.
(6) The rigid suspender and the special-shaped supporting plate are combined to carry out hoisting construction on the prefabricated panel, so that the difficulty of on-site hoisting is reduced; meanwhile, the pre-stressed tendon penetrating pipe is internally provided with the penetrating positioning tendon, and the prefabricated panel can be accurately controlled by the position control body cross brace and the position control body vertical brace, so that the on-site construction quality is improved.
(7) According to the invention, the grouting sealing plate is arranged at the vertical deformation joint, and the airtight plate fastening bolt is arranged, so that the quality of the filling construction of the deformation joint filling body can be improved.
(8) The invention pours the micro-expansion concrete into the cavity enclosed by the anchoring slot plate and the wall-attached steel die to form the anchoring slot enclosed body, which is helpful to reduce the difficulty of the sealing construction of the prestressed lacing wire and improve the durability of the prestressed lacing wire.
Drawings
FIG. 1 is a flow chart of the precast fabricated concrete pavement construction of the present invention;
FIG. 2 is a schematic view of the construction platform set up structure of FIG. 1;
FIG. 3 is a schematic view of a supporting structure of a side form of the pavement of FIG. 1;
FIG. 4 is a schematic view of the alignment connector of FIG. 3;
FIG. 5 is a schematic view of the arrangement structure of the prestressed tendons penetrating through the pipe in FIG. 1;
FIG. 6 is a schematic view of a cast-in-place surface course pouring construction of FIG. 1;
FIG. 7 is a schematic view of the strike-off cross plate mounting arrangement of FIG. 6;
FIG. 8 is a schematic view of the mounting structure of the planar vibrating plate and the insert-type vibrating rod of FIG. 6;
FIG. 9 is a schematic view of the precast panel casting structure of FIG. 1;
FIG. 10 is a schematic view of the connection structure for the mold erection of the jig frame of FIG. 9;
FIG. 11 is a schematic view of a construction structure for hoisting and positioning the prefabricated panel in FIG. 1;
FIG. 12 is a schematic view of the connection structure of the rigid suspension rod and the shaped supporting plate in FIG. 11;
FIG. 13 is a schematic view of the connection structure of the positioning rib and the connecting rope of the positioning rib in FIG. 11;
FIG. 14 is a schematic view illustrating a construction of the deformation joint filling body of FIG. 1;
FIG. 15 is a schematic view of the construction of the anchorage slot closing body of FIG. 1.
In the figure: 1-a foundation soil body; 2-a pavement base; 3, prefabricating a pier foundation; 4-pier bottom bonding layer; 5-pier top positioning plate; 6, connecting falcon at the bottom of the plate; 7-a platform sliding beam; 8-a slide rail connecting groove; 9-a pier top groove plate; 10-a beam bottom connection layer; 11-a sliding supporting plate; 12-a slipping roller; 13-a platform slide rail; 14-a glide track; 15-pier top aligning body; 16-pavement side forms; 17-a vertical position-correcting bolt; 18-transverse position correcting bolt; 19-anchoring the trough plate; 20-the prestressed tendons penetrate through the pipe; 21-a scraper supporting beam; 22-vibrating the supporting beam; 23-a vibrating plate connecting rod; 24-a planar vibrating plate; 25-an elastic connecting plate; 26-vibrating the top beam; 27-inserting and tamping control body; 28-vibrating rod connecting plate; 29-vibrating the connecting layer; 30-a planar vibrator; 31-connecting grooves of vibrating rods; 32-insertion vibrating rod; 33-a vibrating rod connector; 34-a residue collection box; 35-leveling the transverse plate; 36-a squeegee positioning lever; 37-excess material discharge pipe; 38-screed plate; 39-bed jig base plate; 40-erecting a mould by using a moulding bed; 41-vertical mould rotary hinge; 42-panel reinforcement cage; 43-seam containment plate; 44-erecting a formwork supporting plate; 45-a jig frame beam; 46-reinforcement cage stirrups; 47-a steel reinforcement cage hanger rod; 48-corner filler; 49-corner straps; 50-longitudinal reinforcement of a reinforcement cage; a 51-ductile transition layer; 52-prefabricating a panel; 53-rigid hanger bar; 54-a special-shaped supporting plate; 55-a flexible sling; 56-sling attachment rings; 57-arranging positioning ribs in a penetrating way; 58-positioning rib connecting rope; 59-vertical deformation joint; 60-controlling the position body cross brace; 61-vertical support of the position control body; 62-grouting a platform plate; 63-grouting a platform column; 64-grouting platform beams; 65-fastening bolts of the airtight plate; 66-crack pouring obturation plates; 67-joint grouting pipe; 68-deformation joint filling body; 69-adherence steel mould; 70-anchor groove closure; 71-slide rail position correcting bolt; 72-a position correction connector; 73-connector cross plate; 74-connector riser; 75-bar-shaped connecting holes; 76-hoisting the connecting pipe; 77-supporting plate connecting groove; 78-erecting a mould position-correcting bolt; 79-bracing plate fastening bolt; 80-cast-in-place surface layer; 81-jig column; 82-mold side connecting grooves; 83-a strap plate fastening bolt; 84-vertical weight body; 85-position control body support plate; 86-prestressed lacing wire; 87-control the position body bottom plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
Technical requirements of on-site hoisting construction, concrete mix proportion design requirements, bolt fastening construction technical requirements, concrete pouring construction technical requirements and the like are omitted in the embodiment, and the embodiment of the method related to the invention is mainly explained.
The construction method of the prefabricated assembled concrete pavement comprises the following construction steps:
1) construction preparation: filling construction of the pavement base layer (2) is carried out on the compacted foundation soil body (1), and the compaction degree of the pavement base layer (2) is controlled according to design requirements; preparing materials and devices required by construction;
2) setting up a sliding construction platform: inserting the prefabricated pier foundation (3) into the inner lead hole of the foundation soil body (1), and arranging a pier bottom bonding layer (4) at the bottom end of the prefabricated pier foundation (3); placing the pier top positioning plate (5) on the upper part of the prefabricated pier foundation (3), connecting a plate bottom connecting tenon (6) on the lower surface of the pier top positioning plate with the prefabricated pier foundation (3), and controlling the elevation of the top surface of the pier top positioning plate through a pier top aligning body (15); the pier top groove plate (9) is arranged on the pier top positioning plate (5), the platform slide rail (13) is arranged in a slide rail connecting groove (8) on the upper surface of the pier top groove plate (9), and a beam bottom connecting layer (10) is arranged at the joint of the platform slide rail (13) and the pier top groove plate (9); embedding a sliding roller (12) on the lower surface of a sliding support plate (11) into a sliding track (14) of a platform sliding rail (13), and arranging a platform sliding beam (7) on the upper surface of the sliding support plate (11);
3) the road surface side form is erected: the pavement side mold (16) is arranged on a pavement base layer (2), one side of the pavement side mold (16) close to a pier top groove plate (9) is provided with a vertical position correcting bolt (17) and a transverse position correcting bolt (18), the spatial position of the pavement side mold (16) is controlled through the vertical position correcting bolt (17) and the transverse position correcting bolt (18), and the vertical position correcting bolt (17) and the transverse position correcting bolt (18) are arranged in a vertical crossing manner;
4) the prestressed tendons are arranged in a penetrating way through the pipe: arranging anchoring groove plates (19) on the inner sides of the pavement side molds (16), and arranging prestressed tendon penetration pipes (20) between the anchoring groove plates (19) along the direction obliquely crossed with the pavement side molds (16);
5) pouring a cast-in-place surface layer: checking the transverse position of the road surface side mold (16); along the sliding direction, a scraper supporting beam (21) and a vibrating supporting beam (22) are respectively arranged on two sides of a platform sliding beam (7), and the vibrating supporting beam (22) is arranged in front of the scraper supporting beam (21); a vibrating plate connecting rod (23) is arranged on the vibrating support beam (22), and an elastic connecting plate (25) is arranged between the vibrating plate connecting rod (23) and the plane vibrating plate (24); a vibrating top beam (26) vertical to the vibrating support beam is welded on the lower surface of the vibrating support beam (22), and an inserting tamping control body (27) and a vibrating tamper connecting plate (28) are sequentially arranged on the lower surface of the vibrating top beam (26); a vibrating connecting layer (29) is arranged on the lower surface of the plane vibrating plate (24), and a plane vibrator (30) is arranged on the upper surface; a vibrating rod connecting groove (31) is arranged on the lower surface of the vibrating rod connecting plate (28), an insertion type vibrating rod (32) is inserted into the vibrating rod connecting groove (31), and the insertion type vibrating rod (32) is firmly connected with the vibrating rod connecting groove (31) through a vibrating rod connecting body (33); the lower surface of the scraper supporting beam (21) is provided with a residual material collecting box (34), and the scraper supporting beam (21) is connected with the leveling transverse plate (35) through a scraper positioning rod (36); a residual material discharge pipe (37) is arranged between the leveling transverse plate (35) and the residual material collecting box (34), and a scraping leveling plate (38) which is flush with the bottom surface of the residual material discharge pipe is arranged at the lower part of the residual material discharge pipe; pouring construction of a cast-in-place surface layer (80) is carried out along the sliding direction;
6) preparing a prefabricated panel: a jig frame vertical mold (40) is arranged on a jig frame bottom plate (39), the jig frame bottom plate (39) is connected with the jig frame vertical mold (40) through a vertical mold rotating hinge (41), a panel reinforcement cage (42) is arranged between the jig frame vertical molds (40), a seam sealing plate (43) is arranged at the joint of the jig frame vertical mold (40) and the jig frame bottom plate (39) and faces to the panel reinforcement cage (42), and a vertical mold supporting plate (44) is arranged at the side deviating from the panel reinforcement cage (42); the jig frame upright post (81) is arranged on the jig frame bottom plate (39), the jig frame upright post (81) is provided with a jig frame cross beam (45), and the jig frame cross beam (45) is provided with a reinforcement cage hanging rod (47) connected with a reinforcement cage stirrup (46); a corner filling body (48) is arranged at the vertical joint of the two jig frame vertical molds (40), and the position of the corner filling body (48) is limited by a corner hoop plate (49); after the spatial position of the jig frame vertical mold (40) is corrected, a prefabricated panel (52) is poured into a space formed by the jig frame vertical mold (40) and a jig frame bottom plate (39) in an enclosed mode, and after concrete is poured to the height of a prestress penetrating pipe, the constraint of a steel reinforcement cage hanger rod (47) on a steel reinforcement cage stirrup (46) is removed;
7) paving a ductile transition layer: paving the ductile transition layer (51) on the upper surface of the pavement base layer (2), and strictly controlling the top surface flatness and elevation of the ductile transition layer (51);
8) hoisting and positioning the prefabricated panel: inserting the special-shaped supporting plate (54) at the bottom end of the rigid suspender (53) into a supporting plate connecting groove (77) at the bottom end of a hoisting connecting pipe (76), wherein the hoisting connecting pipe (76) is arranged on the bed-jig bottom plate (39), rotating the rigid suspender (53) to enable the long edge of the special-shaped supporting plate (54) to be vertical to the long edge of the hoisting connecting pipe (76), and then enabling the flexible sling (55) at the top end of the rigid suspender (53) to be connected with the sling connecting ring (56); arranging a penetrating positioning rib (57) and a positioning rib connecting rope (58) in a prestressed rib penetrating pipe (20) facing a panel reinforcement cage (42), and enabling the penetrating positioning rib (57) to correspond to the vertical deformation joint (59) of the prefabricated panel (52); connecting external hoisting equipment with a sling connecting ring (56), hoisting the prefabricated panel (52) to a ductility transition layer (51), and correcting the spatial position of the prefabricated panel (52) through a position control body cross brace (60) and a position control body vertical brace (61);
9) constructing a deformation joint filling body: grouting platform plates (62) are respectively arranged on two sides of the vertical deformation joint (59) of the prefabricated panel (52), and grouting platform upright posts (63) and grouting platform cross beams (64) are sequentially arranged on the grouting platform plates (62); two airtight plate fastening bolts (65) are arranged on a grouting platform cross beam (64) in a mirror symmetry mode, and the bottom ends of the airtight plate fastening bolts (65) are vertically welded and connected with a crack pouring airtight plate (66); one end of a joint grouting pipe (67) penetrates through a crack-grouting airtight plate (66) and then is inserted into the vertical deformation joint (59), and the other end of the joint grouting pipe is connected with external grouting equipment to perform deformation joint filling body (68) construction;
10) tensioning the prestressed lacing wire: after the deformation joint filling body (68) forms strength, the prestressed lacing wire (86) is arranged in the prestressed tendon penetrating pipe (20) in a penetrating mode, the anchoring groove plate (19) is used as a tensioning support body, and pre-tensioning tension is applied to the prestressed lacing wire (86);
11) constructing an anchoring groove closing body: wall-adhering steel moulds (69) are erected on two sides of the cast-in-place surface layer (80) and the prefabricated panel (52) synchronously, and an anchoring groove closing body (70) is poured into a cavity formed by enclosing the wall-adhering steel moulds (69) and the anchoring groove plate (19).
Step 2), the prefabricated pier foundation (3) is formed by pouring reinforced concrete materials, the cross section of the prefabricated pier foundation is square, rectangular or circular, and the top end of the prefabricated pier foundation is provided with a groove connected with the slab bottom connecting tenon (6); the pier top positioning plate (5) is made of a concrete plate, the bottom of the pier top positioning plate is provided with a plate bottom connecting tenon (6), the upper surface of the pier top positioning plate is paved with a pier top groove plate (9), a screw hole connected with the vertical positioning bolt (17) is arranged, and a nut matched with the vertical positioning bolt (17) is arranged in the screw hole; the pier top aligning body (15) adopts a hydraulic jack and is arranged between the pier top position adjusting plate (5) and the upper surface of the foundation soil body (1); the pier top groove plate (9) is made of a concrete material or a steel plate material, a sliding rail connecting groove (8) is formed in the upper surface of the pier top groove plate, a sliding rail position correcting bolt (71) is arranged along the length direction of the pier top groove plate, and the sliding rail position correcting bolt (71) is connected with the pier top groove plate (9) and the pier top position adjusting plate (5); the slide rail position correcting bolt (71) is formed by rolling a screw rod, is connected with the slide rail connecting groove (8) through a bolt and is vertically connected with the slide rail connecting groove (8).
Step 3), arranging a position correction connector (72) on the side close to the prefabricated pier foundation (3) by adopting a steel mould or an aluminum alloy mould for the pavement side mould (16); the position correction connecting body (72) comprises a connecting body transverse plate (73) and a connecting body vertical plate (74), and is formed by rolling a steel plate; the connecting body transverse plate (73) is vertically connected with the connecting body vertical plate (74), the connecting body transverse plate (73) is connected with the pavement side mold (16), the connecting body transverse plate (73) is connected with the vertical position correcting bolt (17) through a strip-shaped connecting hole (75), and the connecting body vertical plate (74) is vertically welded with the horizontal position correcting bolt (18); the transverse position-correcting bolt (18) consists of a screw rod and a nut, the length of the transverse position-correcting bolt is adjustable, and the transverse position-correcting bolt (18) is connected with the pier top groove plate (9).
Step 5), the vibrating plate connecting rod (23) is connected with the vibrating support beam (22) through screws and is connected with the elastic connecting plate (25) through adhesion; the inserting and tamping control body (27) adopts a hydraulic jack and is used for controlling the lifting of the vibrating rod connecting plate (28); the vibrating rod connector (33) is made of spring materials, and two ends of the vibrating rod connector are respectively welded with the vibrating rod connecting plate (28) and the plug-in vibrating rod (32); the vibrating connecting layer (29) is formed by cutting a rubber plate.
Step 6), the panel reinforcement cage (42) comprises reinforcement cage longitudinal reinforcements (50) and reinforcement cage stirrups (46), prestressed reinforcement penetrating pipes (20) are arranged at corners of the lower-layer reinforcement cage stirrups (46), and the spatial position of the hoisting connecting pipe (76) is limited through the panel reinforcement cage (42); the prestressed tendon penetration pipe (20) is a PVC pipe and is bound and connected with the connected reinforcement cage stirrup (46); the hoisting connecting pipe (76) is a rubber pipe or a PVC pipe, the cross section of the hoisting connecting pipe is oval, and the bottom end of the hoisting connecting pipe is provided with a supporting plate connecting groove (77) connected with the special-shaped supporting plate (54); the seam airtight plate (43) is a rubber plate and is connected with the jig frame vertical mold (40) and the jig frame bottom plate (39) in a sticking way; the cross section of the vertical mold supporting plate (44) is L-shaped, a vertical mold position-correcting bolt (78) and a supporting plate fastening bolt (79) are respectively arranged between the vertical mold (40) of the jig frame and the bottom plate (39) of the jig frame, and the connection modes are screw connection; the reinforcement cage hanger rod (47) is connected with the jig frame cross beam (45) through screws, and a jig frame upright post (81) is arranged between the jig frame cross beam (45) and the jig frame bottom plate (39); the jig frame vertical mold (40) adopts a steel mold or an aluminum alloy mold plate, the outer side wall of the jig frame vertical mold is provided with an L-shaped mold side connecting groove (82), two sides of the corner hoop plate (49) are respectively inserted into the mold side connecting grooves (82) on the two jig frame vertical molds (40) which are connected, and the corner hoop plate (49) is firmly connected with the mold side connecting grooves (82) through a hoop plate fastening bolt (83).
And 7) adopting a dense-graded binder-free gravel layer or an asphalt-stabilized gravel layer as the ductile transition layer (51).
Step 8), the special-shaped supporting plate (54) is formed by rolling a steel plate, the upper surface of the special-shaped supporting plate is vertically welded and connected with the rigid hanger rod (53), the plane is oval, the long edge and the short edge of the special-shaped supporting plate are 1-2 cm smaller than those of the hoisting connecting pipe (76), and the long edge of the special-shaped supporting plate (54) is 1-2 cm longer than that of the short edge of the hoisting connecting pipe (76); the penetrating positioning ribs (57) are steel pipes or plain steel bars and are arranged at intervals with the positioning rib connecting ropes (58), and the center distance of the penetrating positioning ribs (57) is the same as that of the vertical deformation joints (59) of the prefabricated panel (52); the positioning rib connecting rope (58) adopts a steel wire rope or a nylon rope; the position control body cross brace (60) is vertically welded with the position control body support plate (85), is formed by combining a bolt and a screw rod, and has adjustable length; the position control body vertical support (61) is connected with the position control body support plate (85) through a screw; the vertical surface of the position control body support plate (85) is L-shaped and is formed by rolling a steel plate, and the bottom end of the position control body support plate is vertically welded and connected with a position control body bottom plate (87); the position control body support plate (85) is formed by rolling a steel plate, and a vertical weight pressing body (84) is arranged on the position control body support plate.
Step 9), connecting the airtight plate fastening bolt (65) with a grouting platform cross beam (64) through a screw; the deformation joint filling body (68) adopts self-compacting concrete or grouting material;
step 11), adopting micro-expansion concrete for the anchoring groove closing body (70); the supporting mode of the wall-attached steel die (69) is the same as that of the road surface side die (16).
And 4) and 11), the plane of the anchoring groove plate (19) is in an isosceles trapezoid shape, and holes through which the prestressed tendon penetrating pipes (20) penetrate are preset in the side wall of the anchoring groove plate.
The foundation soil body (1) is cohesive soil in a hard plastic state.
The pavement base (2) is a cement stabilized macadam base and has the thickness of 15 cm.
The prefabricated pier foundation (3) is formed by pouring reinforced concrete materials, the cross section of the prefabricated pier foundation is circular, and the diameter of the prefabricated pier foundation is 50 cm; and a groove connected with the plate bottom connecting tenon (6) is arranged at the top end of the prefabricated pier foundation (3). The plate bottom connecting falcon (6) adopts a steel pipe with the diameter of 100mm, the wall thickness of 10mm and the height of 10 cm.
The pier bottom bonding layer (4) is made of fine aggregate concrete with the strength grade of C30.
The pier top positioning plate (5) is a concrete plate with the thickness of 10cm and the width of 20cm, the lower surface of the pier top positioning plate is provided with a plate bottom connecting tenon (6), and the upper surface of the pier top positioning plate is paved with a pier top groove plate (9); the pier top positioning plate (5) is provided with a screw hole connected with the vertical positioning bolt (17), and a nut matched with the vertical positioning bolt (17) is arranged in the screw hole.
The pier top groove plate (9) is formed by rolling a steel plate with the thickness of 2mm, the cross section of the pier top groove plate is U-shaped, and the platform sliding beam (7) is made of H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8.
The pier top groove plate (9) is made of concrete materials or steel plate materials, a sliding rail connecting groove (8) is arranged on the upper surface of the pier top groove plate, and a sliding rail position correcting bolt (71) is arranged along the length direction of the pier top groove plate. The sliding rail connecting groove (8) is formed by rolling a steel plate with the thickness of 2mm, and the sliding rail position correcting bolt (71) is formed by rolling a high-strength screw rod with the diameter of 30 mm.
The beam bottom connecting layer (10) adopts a rubber plate with the thickness of 5 mm.
The sliding supporting plate (11) is formed by rolling a steel plate with the thickness of 10mm, and the width of the sliding supporting plate is 8 cm.
The sliding roller (12) is a steel roller with the diameter of 50 mm.
The platform slide rail (13) is formed by rolling a steel plate with the thickness of 2mm, and the clear width of the slide rail (14) on the platform slide rail is 10 cm.
The pier top aligning body (15) adopts a hydraulic jack and is arranged between the pier top position adjusting plate (5) and the upper surface of the foundation soil body (1).
The pavement side die (16) adopts a steel die with the thickness of 3mm, and a position correction connector (72) is arranged on the side close to the prefabricated pier foundation (3). The aligning connecting body (72) comprises a connecting body transverse plate (73) and a connecting body vertical plate (74), and is formed by integrally rolling a steel plate with the thickness of 10 mm; the connecting body transverse plate (73) is connected with the vertical position correcting bolt (17) through a strip-shaped connecting hole (75), the width of the strip-shaped connecting hole (75) is 4cm, and the length of the strip-shaped connecting hole is 10 cm.
The vertical position-correcting bolt (17) and the horizontal position-correcting bolt (18) are respectively composed of high-strength screw rods and nuts with the diameters of 30mm and 20mm, and the length of the high-strength screw rods and the nuts is adjustable.
The anchoring groove plate (19) is formed by rolling a steel plate with the thickness of 10mm, and the plane of the anchoring groove plate is isosceles trapezoid.
The prestressed tendon penetration pipe (20) is a PVC pipe with the diameter of 60mm and is bound and connected with the connected reinforcement cage stirrup (46).
The scraper supporting beam (21) and the vibrating supporting beam (22) are both formed by rolling steel plates with the thickness of 10mm and the width of 10 cm.
The vibrating plate connecting rod (23) is connected with the vibrating support beam (22) through screws and is connected with the elastic connecting plate (25) through adhesion. The vibrating plate connecting rod (23) is formed by rolling a screw rod with the diameter of 30 mm.
The plane vibrating plate (24) is formed by rolling a steel plate with the thickness of 1 mm.
The elastic connecting plate (25) is made of a rubber plate with the thickness of 2 mm.
The vibrating top beam (26) is formed by rolling a steel plate with the thickness of 2mm, and the width of the vibrating top beam is 10 cm.
The inserting and tamping control body (27) adopts a hydraulic jack and can control the lifting of the vibrating rod connecting plate (28); the vibrating rod connecting plate (28) is formed by rolling a steel plate with the thickness of 2 mm.
The vibration connecting layer (29) is formed by cutting a rubber plate with the thickness of 10 mm.
The plane vibrator (30) adopts a concrete surface vibrator.
The diameter of the vibrating rod connecting groove (31) is 120 mm.
The vibrating rod connector (33) is made of spring materials, and two ends of the vibrating rod connector are respectively connected with the vibrating rod connecting plate (28) and the plug-in vibrating rod (32) in a welding mode. The insert tamper bar (32) employs an ZDN100 vibrator.
The excess material collecting box (34) is formed by rolling a steel plate with the thickness of 1mm and the volume of 0.3m3。
The strickle transverse plate (35) is formed by rolling a steel plate with the thickness of 10 mm.
The scraper positioning rod (36) is formed by rolling a screw rod with the diameter of 10 mm.
The excess material discharge pipe (37) is a steel pipe with the diameter of 100 mm.
The scraper leveling plate (38) is formed by rolling a steel plate with the thickness of 2mm, and the width of the scraper leveling plate is 6cm, and the length of the scraper leveling plate is 30 cm. The jig vertical dies (40) are formed by rolling steel plates with the thickness of 6mm, L-shaped die side connecting grooves (82) are formed in the outer side walls of the jig vertical dies, two sides of the corner hoop plate (49) are respectively inserted into the die side connecting grooves (82) of the two jig vertical dies (40) which are connected, and the corner hoop plate (49) is firmly connected with the die side connecting grooves (82) through a hoop plate fastening bolt (83). The corner hoop plate (49) and the die side connecting groove (82) are rolled by steel plates with the thickness of 10 mm; the hoop plate fastening bolt (83) is formed by rolling a high-strength screw rod with the diameter of 30 mm.
The vertical mould rotary hinge (41) adopts a rotary shaft with the diameter of 10 mm.
Panel steel reinforcement cage (42) are including steel reinforcement cage longitudinal reinforcement (50) and steel reinforcement cage stirrup (46) to set up prestressing tendons at the corner of the steel reinforcement cage stirrup (46) of lower floor and wear to establish pipe (20), inject the spatial position of hoist and mount connecting pipe (76) through panel steel reinforcement cage (42). The longitudinal reinforcement (50) and the stirrup (46) of the reinforcement cage both adopt twisted steel with the diameter of 12mm, and the hoisting connecting pipe (76) adopts the length of the long side of 65mm and the length of the short side of 50 mm.
The seam airtight plate (43) is a rubber plate with the thickness of 1mm and is connected with the jig frame vertical die (40) and the jig frame bottom plate (39) in a sticking way. The bed-jig bottom plate (39) is formed by rolling a steel plate with the thickness of 10 mm.
The cross section of the vertical mould supporting plate (44) is L-shaped, a vertical mould position-correcting bolt (78) and a supporting plate fastening bolt (79) are respectively arranged between the vertical mould (40) of the moulding bed and the bottom plate (39) of the moulding bed, and the connection modes are screw connection. The vertical die position-correcting bolt (78) and the supporting plate fastening bolt (79) are respectively formed by rolling screws with the diameters of 10mm and 20 mm.
The jig frame cross beam (45) is formed by rolling a steel plate with the thickness of 2mm, the width of the steel plate is 20cm, and the height of the steel plate is 10 cm. The reinforcement cage suspender (47) is connected with the jig frame cross beam (45) through a screw, and a jig frame upright post (81) is arranged between the jig frame cross beam (45) and the jig frame bottom plate (39); the steel reinforcement cage suspender (47) adopts a screw rod with the diameter of 60 mm; the jig frame upright post (81) is formed by rolling a steel pipe with the diameter of 100 mm.
The corner filling body (48) adopts a rubber plate, the cross section of the rubber plate is square, and the width of the rubber plate is 6 mm.
The ductile transition layer (51) adopts a dense-graded binder-free crushed stone layer, and the thickness of the ductile transition layer is 10 cm.
The prefabricated panel (52) is a reinforced concrete panel with the strength grade of C35 and the thickness of the panel is 20 cm.
The rigid hanger rod (53) is formed by rolling and cutting a steel bar with the diameter of 32 mm.
The special-shaped supporting plate (54) is formed by rolling a steel plate, the upper surface of the special-shaped supporting plate is vertically welded and connected with the rigid hanger rod (53), the plane is oval, the length of the long side of the special-shaped supporting plate is 60mm, and the length of the short side of the special-shaped supporting plate is 45 mm.
The flexible sling (55) is a steel wire rope with the diameter of 20 mm.
The sling connecting ring (56) is rolled into a ring shape by adopting a steel bar with the diameter of 10mm, and the diameter of the ring is 10 cm. The positioning ribs (57) are arranged in a penetrating mode, steel pipes with the diameter of 30mm are adopted, the length of each section is 20cm, the positioning ribs and the connecting ropes (58) are arranged at intervals, and the center distance of the positioning ribs (57) is the same as that of the vertical deformation joints (59) of the prefabricated panel (52). The positioning rib connecting rope (58) adopts a steel wire rope with the diameter of 10mm, and the width of the vertical deformation joint (59) is 20 mm.
The position control body cross brace (60) is vertically welded and connected with the position control body support plate (85), and is formed by combining a stainless steel bolt with the diameter of 30mm and a screw rod, the length of the position control body cross brace is adjustable, and the position control body support plate (85) is provided with a vertical weight pressing body (84). The vertical surface of the position control body support plate (85) is L-shaped and is formed by rolling a steel plate with the thickness of 10mm, the bottom end of the position control body support plate is vertically welded and connected with the position control body bottom plate (7), the vertical weight pressing body (84) is made of a concrete precast block, and the weight of a single block is 100 kg.
The vertical support (61) of the position control body is formed by rolling a screw rod with the diameter of 60 mm.
The grouting platform plate (62) is formed by rolling a steel plate with the thickness of 10 mm.
The grouting platform upright post (63) is formed by rolling a steel pipe with the diameter of 100 mm.
The grouting platform beam (64) is formed by rolling a steel plate with the thickness of 2mm, the width of the grouting platform beam is 20cm, and the height of the grouting platform beam is 10 cm.
The sealing plate fastening bolt (65) is formed by combining a high-strength bolt with the diameter of 30mm and a screw.
The crack pouring airtight plate (66) is formed by cutting a rubber plate with the thickness of 2 mm.
The joint grouting pipe (67) adopts a PVC pipe with the diameter of 50 mm.
The deformation joint filling body (68) is made of self-compacting concrete with the strength grade of C35.
The adherence steel mould (69) adopts a steel mould with the thickness of 3mm and the supporting mode thereof is the same as that of the pavement side mould (16). The anchorage slot closing body (70) adopts micro-expansion concrete with the strength grade of C35.
The slide rail position correcting bolt (71) is formed by rolling a screw rod with the diameter of 60mm, is connected with the slide rail connecting groove (8) through a bolt and is vertically connected with the slide rail connecting groove (8).
The supporting plate connecting groove (77) is formed by cutting a foam plate with the thickness of 10mm, and the planar shape of the supporting plate connecting groove is the same as that of the special-shaped supporting plate (54).
The cast-in-place surface layer (80) is a concrete surface layer with the strength grade of C35.
The prestressed lacing wire (86) adopts a twisted steel bar with the diameter of 32 mm.
The bottom plate (87) of the position control body is formed by rolling a steel plate with the thickness of 10 mm.
According to another aspect of the present invention, there is provided a precast fabricated concrete pavement constructed according to the method of construction thereon.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. The construction method of the prefabricated assembled concrete pavement is characterized by comprising the following construction steps:
1) construction preparation: filling construction of the pavement base layer (2) is carried out on the compacted foundation soil body (1), and the compaction degree of the pavement base layer (2) is controlled according to design requirements; preparing materials and devices required by construction;
2) setting up a sliding construction platform: inserting the prefabricated pier foundation (3) into the hole in the foundation soil body (1); placing the pier top positioning plate (5) on the upper part of the prefabricated pier foundation (3), and controlling the elevation of the top surface of the prefabricated pier foundation through the pier top aligning body (15); the pier top groove plate (9) is arranged on the pier top positioning plate (5), the platform slide rail (13) is arranged in a slide rail connecting groove (8) on the upper surface of the pier top groove plate (9), so that the slide roller (12) on the lower surface of the slide supporting plate (11) is embedded in a slide rail (14) of the platform slide rail (13), and the upper surface of the slide supporting plate (11) is provided with a platform slide beam (7);
3) the road surface side form is erected: the pavement side mold (16) is arranged on a pavement base layer (2), one side of the pavement side mold (16) close to a pier top groove plate (9) is provided with a vertical position correcting bolt (17) and a transverse position correcting bolt (18), and the spatial position of the pavement side mold (16) is controlled through the vertical position correcting bolt (17) and the transverse position correcting bolt (18);
4) the prestressed tendons are arranged in a penetrating way through the pipe: arranging anchoring groove plates (19) on the inner sides of the pavement side molds (16), and arranging prestressed tendon penetration pipes (20) between the anchoring groove plates (19) along the direction obliquely crossed with the pavement side molds (16);
5) pouring a cast-in-place surface layer: checking the transverse position of the road surface side mold (16); along the sliding direction, a scraper supporting beam (21) and a vibrating supporting beam (22) are respectively arranged on two sides of a platform sliding beam (7), and the vibrating supporting beam (22) is arranged in front of the scraper supporting beam (21); a vibrating plate connecting rod (23) is arranged on the vibrating support beam (22), and an elastic connecting plate (25) is arranged between the vibrating plate connecting rod (23) and the plane vibrating plate (24); a vibrating top beam (26) vertical to the vibrating support beam is welded on the lower surface of the vibrating support beam (22), and an inserting tamping control body (27) and a vibrating tamper connecting plate (28) are sequentially arranged on the lower surface of the vibrating top beam (26); a vibrating connecting layer (29) is arranged on the lower surface of the plane vibrating plate (24), and a plane vibrator (30) is arranged on the upper surface; a vibrating rod connecting groove (31) is arranged on the lower surface of the vibrating rod connecting plate (28), an insertion type vibrating rod (32) is inserted into the vibrating rod connecting groove (31), and the insertion type vibrating rod (32) is firmly connected with the vibrating rod connecting groove (31) through a vibrating rod connecting body (33); the lower surface of the scraper supporting beam (21) is provided with a residual material collecting box (34), and the scraper supporting beam (21) is connected with the leveling transverse plate (35) through a scraper positioning rod (36); a residual material discharge pipe (37) is arranged between the leveling transverse plate (35) and the residual material collecting box (34), and a scraping leveling plate (38) which is flush with the bottom surface of the residual material discharge pipe is arranged at the lower part of the residual material discharge pipe; pouring construction of a cast-in-place surface layer (80) is carried out along the sliding direction;
6) preparing a prefabricated panel: a jig frame vertical mould (40) is arranged on a jig frame bottom plate (39), the jig frame bottom plate (39) is connected with the jig frame vertical mould (40) through a vertical mould rotating hinge (41), and a panel reinforcement cage (42) is arranged between the jig frame vertical moulds (40); the jig frame upright post (81) is arranged on the jig frame bottom plate (39), the jig frame upright post (81) is provided with a jig frame cross beam (45), and the jig frame cross beam (45) is provided with a reinforcement cage hanging rod (47) connected with a reinforcement cage stirrup (46); after the spatial position of the jig frame vertical mold (40) is corrected, a prefabricated panel (52) is poured into a space formed by the jig frame vertical mold (40) and a jig frame bottom plate (39) in an enclosed mode, and after concrete is poured to the height of a prestress penetrating pipe, the constraint of a steel reinforcement cage hanger rod (47) on a steel reinforcement cage stirrup (46) is removed;
7) paving a ductile transition layer: paving the ductile transition layer (51) on the upper surface of the pavement base layer (2), and strictly controlling the top surface flatness and elevation of the ductile transition layer (51);
8) hoisting and positioning the prefabricated panel: inserting the special-shaped supporting plate (54) at the bottom end of the rigid suspender (53) into a supporting plate connecting groove (77) at the bottom end of a hoisting connecting pipe (76), wherein the hoisting connecting pipe (76) is arranged on the bed-jig bottom plate (39), and then connecting the flexible sling (55) at the top end of the rigid suspender (53) with a sling connecting ring (56); arranging a penetrating positioning rib (57) and a positioning rib connecting rope (58) in a prestressed rib penetrating pipe (20) facing a panel reinforcement cage (42), and enabling the penetrating positioning rib (57) to correspond to the vertical deformation joint (59) of the prefabricated panel (52); connecting external hoisting equipment with a sling connecting ring (56), hoisting the prefabricated panel (52) to a ductility transition layer (51), and correcting the spatial position of the prefabricated panel (52) through a position control body cross brace (60) and a position control body vertical brace (61);
9) constructing a deformation joint filling body: grouting platform plates (62) are respectively arranged on two sides of the vertical deformation joint (59) of the prefabricated panel (52), one end of a joint grouting pipe (67) penetrates through a grouting airtight plate (66) and then is inserted into the vertical deformation joint (59), the other end of the joint grouting pipe is connected with external grouting equipment, and a deformation joint filling body (68) is constructed;
10) tensioning the prestressed lacing wire: after the deformation joint filling body (68) forms strength, the prestressed lacing wire (86) is arranged in the prestressed tendon penetrating pipe (20) in a penetrating mode, the anchoring groove plate (19) is used as a tensioning support body, and pre-tensioning tension is applied to the prestressed lacing wire (86);
11) constructing an anchoring groove closing body: wall-adhering steel moulds (69) are erected on two sides of the cast-in-place surface layer (80) and the prefabricated panel (52) synchronously, and an anchoring groove closing body (70) is poured into a cavity formed by enclosing the wall-adhering steel moulds (69) and the anchoring groove plate (19).
2. The construction method of the prefabricated assembled concrete pavement according to claim 1, wherein a bottom bonding layer (4) is arranged at the bottom end of the prefabricated pier foundation (3), and a groove connected with a slab bottom connecting tenon (6) is arranged at the top end of the prefabricated pier foundation (3); pier top positioning plate (5) lower surface sets up board end connection falcon (6), pier top frid (9) are laid to the upper surface, and the screw of being connected with vertical positioning bolt (17) is set up, the upper surface of pier top frid (9) sets up slide rail connection groove (8), set up slide rail positioning bolt (71) along its length direction, wherein pier top frid (9) and pier top positioning plate (5) are connected to slide rail positioning bolt (71), slide rail positioning bolt (71) adopt the screw rod rolling to form, pass through bolted connection with slide rail connection groove (8), and meet department of meeting with pier top frid (9) at platform slide rail (13) with slide rail connection groove (8) perpendicularly and set up roof beam end articulamentum (10).
3. The construction method of the prefabricated assembled concrete pavement according to claim 1, wherein in step 3, the pavement side mold (16) is provided with a position correction connecting body (72) at the side close to the prefabricated pier foundation (3), the position correction connecting body (72) comprises a connecting body transverse plate (73) and a connecting body vertical plate (74), the connecting body transverse plate (73) is vertically connected with the connecting body vertical plate (74), the connecting body transverse plate (73) is connected with the pavement side mold (16), the connecting body transverse plate (73) is connected with the vertical position correction bolt (17) through a strip-shaped connecting hole (75), the connecting body vertical plate (74) is vertically connected with the horizontal position correction bolt (18), and the horizontal position correction bolt (18) is connected with the pier top groove plate (9).
4. A method of constructing a precast assembled concrete pavement according to claim 1, wherein, in step 5, the vibrating plate connecting rod (23) is connected with the vibrating support beam (22) by screws and connected with the elastic connecting plate (25) by gluing, the vibrating rod connecting body (33) is made of spring material, both ends of the vibrating rod connecting body are respectively connected with the vibrating rod connecting plate (28) and the inserted vibrating rod (32), and the vibrating connecting layer (29) is cut by rubber plates.
5. The method for constructing a precast assembled concrete pavement according to claim 1, wherein in step 6), the panel reinforcement cage (42) comprises reinforcement cage longitudinal reinforcements (50) and reinforcement cage stirrups (46), and the prestressed reinforcement through pipes (20) are arranged at the corners of the reinforcement cage stirrups (46) at the lower layer, and the prestressed reinforcement through pipes (20) are bound and connected with the connected reinforcement cage stirrups (46). The bottom end of the hoisting connecting pipe (76) is provided with a supporting plate connecting groove (77) connected with the special-shaped supporting plate (54).
6. The precast fabricated concrete pavement construction method according to claim 1, wherein in step 6), a seam obturation plate (43) is arranged at the joint of the jig frame vertical mold (40) and the jig frame bottom plate (39) facing the panel reinforcement cage (42) side, and a vertical mold supporting plate (44) is arranged at the side away from the panel reinforcement cage (42); a corner filling body (48) is arranged at the vertical joint of the two bed frame vertical moulds (40), and the position of the corner filling body (48) is limited by a corner hoop plate (49).
7. A method for constructing a precast fabricated concrete pavement according to claim 6, wherein the carcass building formwork (40) is a steel or aluminum alloy formwork, the outer wall of which is provided with L-shaped mould side connecting grooves (82), and both sides of the corner hoop plate (49) are respectively inserted into the mould side connecting grooves (82) of the two joined carcass building formworks (40), and the corner hoop plate (49) is firmly connected with the mould side connecting grooves (82) by the hoop plate fastening bolts (83).
8. The construction method of the prefabricated assembled concrete pavement according to the claim 1, characterized in that in step 8), the rigid suspension rod (53) is rotated to make the long side of the special-shaped supporting plate (54) perpendicular to the long side of the hoisting connecting pipe (76), the center distance of the positioning rib (57) is arranged to be the same as the center distance of the vertical deformation joint (59) of the prefabricated panel (52), and the position control body cross brace (60) is vertically connected with the position control body support plate (85); the position control body vertical support (61) is vertically connected with the position control body support plate (85).
9. The precast fabricated concrete pavement construction method according to claim 1, wherein in step 9), grouting platform columns (63) and grouting platform beams (64) are sequentially arranged on the grouting platform slab (62), two sealing slab fastening bolts (65) are arranged on the grouting platform beams (64) in mirror symmetry, and the bottom ends of the sealing slab fastening bolts (65) are vertically welded to the crack pouring sealing slab (66).
10. A precast fabricated concrete pavement constructed by the method of construction of a precast fabricated concrete pavement according to any one of claims 1 to 9.
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| CN111535108A (en) * | 2020-04-29 | 2020-08-14 | 东南大学 | High-strength permanent pavement and construction method thereof |
| CN111764224A (en) * | 2020-07-24 | 2020-10-13 | 江西博慧工程技术服务有限公司 | Concrete pavement disease repairing method |
| CN112195728A (en) * | 2020-09-27 | 2021-01-08 | 董长艳 | Concrete road construction is with having automatic indentation and preventing lateral leakage formula device of strickleing off |
| CN112376351A (en) * | 2020-11-03 | 2021-02-19 | 中国电建集团重庆工程有限公司 | Construction method of prefabricated beam road related to mountain knife back beam terrain |
| CN113378268A (en) * | 2021-06-07 | 2021-09-10 | 中国二十冶集团有限公司 | Underground pipe gallery deformation joint reinforcing steel bar refined electric calculation method and system based on BIM |
| CN113863360A (en) * | 2021-10-27 | 2021-12-31 | 中铁三局集团建筑安装工程有限公司 | Intensive equipment foundation group sizing formwork system and construction method |
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| CN112376351A (en) * | 2020-11-03 | 2021-02-19 | 中国电建集团重庆工程有限公司 | Construction method of prefabricated beam road related to mountain knife back beam terrain |
| CN113378268A (en) * | 2021-06-07 | 2021-09-10 | 中国二十冶集团有限公司 | Underground pipe gallery deformation joint reinforcing steel bar refined electric calculation method and system based on BIM |
| CN113863360A (en) * | 2021-10-27 | 2021-12-31 | 中铁三局集团建筑安装工程有限公司 | Intensive equipment foundation group sizing formwork system and construction method |
| CN113958086A (en) * | 2021-10-28 | 2022-01-21 | 中铁三局集团建筑安装工程有限公司 | Steel fiber concrete floor and hardening construction method thereof |
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