CN113510838B - Construction method of prefabricated pavement slab for fabricated pavement - Google Patents
Construction method of prefabricated pavement slab for fabricated pavement Download PDFInfo
- Publication number
- CN113510838B CN113510838B CN202110730056.2A CN202110730056A CN113510838B CN 113510838 B CN113510838 B CN 113510838B CN 202110730056 A CN202110730056 A CN 202110730056A CN 113510838 B CN113510838 B CN 113510838B
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- Prior art keywords
- pouring
- lifting
- panel
- plate
- frame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
Abstract
The invention discloses a construction method of an assembled pavement prefabricated road board, which can not only enable better association between road boards and enhance the load transfer capability of seams between the road boards, but also can more effectively ensure the integrity of the prefabricated road board; and the lifting device is arranged, so that the lifting operation can be completed more efficiently. The method comprises the following steps: s1, preparing a pouring base, a pouring frame and a lifting device, wherein a pouring panel is arranged at the upper end of the pouring base, the lower end of the pouring frame is installed on the pouring panel, the lifting device comprises a lifting plate and a lifting block, the lifting plate is spliced with the pouring panel, the pouring base, the pouring panel and the lifting plate enclose a pouring space, the lifting block is fixed at the upper end of the lifting plate, an internal thread hole is vertically formed in the lifting block, and the internal thread hole is sealed through a bolt; s2, pouring concrete in the pouring space; and S3, turning over the prefabricated road plate after the prefabricated road plate is taken down, taking down the bolt from the lifting block, screwing the hanging ring to the lifting block, and lifting the hanging ring to complete the subsequent paving operation.
Description
Technical Field
The invention relates to the technical field of prefabricated roads, in particular to a construction method of a prefabricated road board of an assembled pavement.
Background
With the development of socio-economic, the traffic volume is larger and larger, and the requirements on a traffic network are higher and higher. Particularly in economically developed areas, the requirements on the speed of road construction and maintenance are very high, and the road construction is closely related to economic development. The prefabricated road boards are utilized on the assembled road surface, and the assembled road surface is installed on site, so that a new idea of a road structure form is provided, and the construction and repair work of a road is completed quickly.
The existing prefabricated road plate has several problems, firstly, an assembled road surface structure for laying temporary road surfaces is provided with lifting hooks on a road surface plate for convenient hoisting, and in order not to influence a travelling crane, the upper surface of the rectangular road surface plate is generally provided with four grooves, the lifting hooks are arranged in the grooves to complete hoisting, and the inclination of the lifting hooks is easy to occur in the pre-buried process.
In addition, the existing prefabricated road slab is poured through a formwork and is finished, the prefabricated road slab is lifted after being demolded, however, in the lifting process, two adjacent road slabs are not connected together, in the using process, the gap between the two adjacent road slabs is easily caused to be overlarge, in addition, in the lifting process, the edge knocking and foot dropping are easily generated, the damage of the prefabricated road slabs is even caused in the demolded maintenance process, the integrity of the road after the prefabricated road slab is built is insufficient, and the road is easy to damage.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a construction method of an assembled pavement prefabricated road board, the manufactured prefabricated road board not only can enable the road boards to have better correlation, enhance the load transfer capability of seams between the road boards, but also can more effectively ensure the integrity of the prefabricated road board; and the lifting device is arranged, so that the lifting operation can be completed more efficiently.
The purpose of the invention is realized as follows:
a construction method of an assembly type pavement precast road plate,
s1, pouring preparation
Preparing a pouring base, a pouring frame and a lifting device, wherein a pouring panel is arranged at the upper end of the pouring base, the lower end of the pouring frame is arranged on the pouring panel, the lifting device comprises a lifting plate and a lifting block, the lifting plate is spliced with the pouring panel, the pouring base, the pouring panel and the lifting plate enclose a pouring space, the lifting block is welded and fixed at the upper end of the lifting plate, an internal thread hole is vertically formed in the lifting block, the internal thread hole is sealed through a bolt, and a nut of the bolt is abduced through a through hole in the lifting plate;
s2, pouring process
Pouring concrete in the pouring space, taking down the poured prefabricated road plate by using a clamp after concrete curing is finished, separating the pouring base and the pouring panel from the prefabricated road plate, and forming the pouring frame and the prefabricated road plate into a whole;
s3, paving process
And turning over the prefabricated road plate after the prefabricated road plate is taken down to enable the lifting plate and the bolts to be upward, cleaning the plane, taking down the bolts from the lifting blocks during paving, screwing the hanging rings onto the lifting blocks, and lifting the hanging rings to complete subsequent paving operation.
Preferably, the cast panel is a slab or a ribbed panel.
Preferably, the lower end of the pouring frame is provided with a bend, the pouring panel is provided with a clamping groove which is correspondingly bent, the bend clamp of the pouring frame is sleeved on the clamping groove of the pouring panel for positioning, and after the lifting plate is spliced with the pouring panel, the bottom of the pouring frame are bent, and the lifting plate are spliced to form a closed plane;
the side part of the pouring base is uniformly provided with a plurality of pressing devices, and the pouring frame is pressed and fixed on the pouring panel by using the pressing devices.
Preferably, the pressing device comprises a '21274', rotatably assembled and disassembled installation block fixed on the side part of the pouring base, a threaded pressing rod is arranged at the upper end of the installation block, and the lower end of the threaded pressing rod presses and fixes the pouring frame on the pouring panel by screwing the threaded pressing rod.
Preferably, in step S1, the nut of the bolt is flush with the lower surface of the lifting plate.
Preferably, connecting steel bars are pre-embedded in the pouring frame, so that the pouring frame and the prefabricated road board are integrated into a whole.
Due to the adoption of the technical scheme, the prefabricated road plate structure manufactured by the invention is smoother due to the regular appearance of the pouring frame, better connection and narrower gaps can be formed among roads, prefabricated road plates and between adjacent prefabricated road plates, collision and damage can not occur between adjacent prefabricated road plates due to the protection of the pouring frame, and the integrity of the prefabricated road plates can be effectively ensured; and the lifting device is arranged, so that the lifting operation can be completed more efficiently.
Drawings
FIG. 1 is an assembly diagram of a pouring base and a pouring frame;
FIG. 2 is an enlarged partial schematic view of FIG. 1;
FIG. 3 is a schematic top view of FIG. 1;
fig. 4 and 5 are schematic structural views (after being turned over) of the hoisting device.
Detailed Description
Referring to fig. 1 to 5, a construction method of an assembled pavement prefabricated road slab comprises the following steps:
the setting is pour the frame, pours the closed frame that the frame was enclosed for the board of thin wall and transversal personally submitting "L" type, and the frame can enclose into required shape's cuboid, cube, shapes such as hexagonal prism, specifically can be according to the required panel in road surface and decide (with the cuboid as leading, the prefabricated road panel later stage that the cuboid was pour and is formed is laid more in a flexible way).
The method comprises the following steps of arranging a pouring base, arranging a pouring panel on the pouring base, wherein the pouring panel is a plane or is provided with a panel with patterns, the pattern of the panel with the patterns can be printed out, and the shape of the pouring panel corresponds to the bottom outline of a bending edge of a pouring frame. The pouring frame can be clamped to the pouring panel in a sleeved mode, a lifting device is arranged on the narrow bent edge of the pouring frame and comprises a lifting plate and a lifting block, an inner threaded hole is formed in the lifting block, a through hole is formed in the lifting plate and can penetrate through a bolt matched with the lifting block, the bolt can be set to be an inner hexagon bolt or a common bolt, and the end portion of the bolt is flush with the plane of the lifting plate. The pouring panel is provided with a position space matched with the plane of the lifting plate, the lifting plate and the pouring panel can be guaranteed, and the narrow bending edge of the pouring frame is flush with the matching level of the pouring panel. And embedding connecting steel bars in the pouring frame. Be equipped with closing device on pouring the base, be used for compressing tightly when pouring the frame. The pressing device comprises a '21274', rotatably assembled and disassembled installation block fixed on the side part of the pouring base, a threaded pressing rod is arranged at the upper end of the installation block, and the lower end of the threaded pressing rod presses and fixes the pouring frame on the pouring panel by screwing the threaded pressing rod.
Pouring: after the pouring base is placed, the narrow bending edge of the pouring frame is matched with the pouring panel in a clamping sleeve mode, the pouring panel, the bending edge of the bottom of the pouring frame and the lifting plate form a closed plane, the pouring frame is tightly pressed by using a pressing device, the pouring frame is tightly attached to the base, concrete pouring is carried out in the space formed by the pouring frame and the pouring base, and after concrete curing is finished, the pouring forming panel can be taken down by using a clamp.
The use and paving process comprises the following steps: the panel takes off the back, can overturn, when mating formation, after the clearance plane, takes off the bolt from hoisting accessory, revolves rings to lifting plate on, lifts by crane rings alright accomplish the follow-up operation of mating formation.
The overall assembly mode of the pouring frame and the pouring base is as shown in fig. 1-3, the pouring frame and the pouring base are assembled and installed in the mode shown in fig. 1-3 before pouring (fig. 1-3 are modes of a typical cuboid prefabricated road plate, other modes can be supplemented), the embedded part of reinforcing steel bars is omitted in fig. 1-3, the reinforcing steel bars are connected with the pouring frame in a conventional pre-installation mode, a protective layer is reserved at the bottom, and pouring is carried out after the embedded installation is finished.
The patent has the following innovation points:
(1) The innovation of the prefabricating method is that a frame is enclosed by thin-wall L-shaped plates, and the effect of the frame is the same as that of a traditional prefabricated formwork, so that concrete can be poured into a designed shape. After the pouring is finished, the frame and the concrete are integrated, the integrity of the prefabricated road plate is better protected, and the load transfer capability of seams between plates can be enhanced.
(2) According to a new method, a set of complete device is provided, the pouring panel on the pouring base is matched with the pouring frame to complete pouring, the pouring base is reusable, and when prefabricating, the pouring panel is matched with the pouring frame to process the pouring frame according to requirements.
(3) The hoisting device arranged on the pouring frame is composed of a hoisting plate, a hoisting block and a bolt as shown in fig. 4, and the integral structure is simple, but the integral hoisting function can be achieved. When pouring, the hoisting device is partially embedded into the prefabricated road plate, the assembly and disassembly are flexible, the bolts are detached, and hoisting can be carried out by utilizing the hoisting rings to complete subsequent pavement.
In addition, as shown in fig. 5, the lifting device can also adopt another structure, the lifting plate and the lifting block are welded through the auxiliary plate, and the part of the bolt extending out of the lifting block is packaged through the plugging plate, so that the bolt can be conveniently taken down in the later period.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. A construction method of an assembled pavement prefabricated road plate is characterized by comprising the following steps:
s1, pouring preparation
Preparing a pouring base, a pouring frame and a lifting device, wherein the upper end of the pouring base is provided with a pouring panel, the lower end of the pouring frame is installed on the pouring panel, the lifting device comprises a lifting plate and a lifting block, the lifting plate is spliced with the pouring panel, the pouring base, the pouring panel and the lifting plate enclose a pouring space, the lifting block is welded and fixed to the upper end of the lifting plate, an internal thread hole is vertically formed in the lifting block, the internal thread hole is sealed through a bolt, and a through hole is formed in the lifting plate to enable a nut of the bolt to move away;
the lower end of the pouring frame is provided with a bend, the pouring panel is provided with a clamping groove which is correspondingly bent, the bending clamping sleeve of the pouring frame is sleeved on the clamping groove of the pouring panel for positioning, and after the lifting plate is spliced with the pouring panel, the bottom of the pouring frame are bent, and the lifting plate are spliced to form a closed plane;
a plurality of pressing devices are uniformly arranged on the side part of the pouring base, and the pouring frame is pressed and fixed on the pouring panel by using the pressing devices;
s2, pouring process
Pouring concrete in the pouring space, taking down the poured prefabricated road plate by using a clamp after concrete curing is finished, separating the pouring base and the pouring panel from the prefabricated road plate, and forming the pouring frame and the prefabricated road plate into a whole;
s3, paving process
And turning over the prefabricated road plate after the prefabricated road plate is taken down to enable the lifting plate and the bolts to be upward, cleaning the plane, taking down the bolts from the lifting blocks during paving, screwing the hanging rings onto the lifting blocks, and lifting the hanging rings to complete subsequent paving operation.
2. The construction method of the fabricated pavement precast road slab according to claim 1, characterized in that: the pouring panel is a flat plate or a panel with patterns.
3. The construction method of the fabricated pavement precast road slab according to claim 1, wherein: the pressing device comprises a '21274', a mounting block which is rotatably assembled and disassembled and is fixed on the side part of the pouring base, a threaded pressing rod is arranged at the upper end of the mounting block, and the lower end of the threaded pressing rod presses and fixes the pouring frame on the pouring panel by screwing the threaded pressing rod.
4. The construction method of the fabricated pavement precast road slab according to claim 1, characterized in that: in step S1, the nut of the bolt is flush with the lower surface of the lifting plate.
5. The construction method of the fabricated pavement precast road slab according to claim 1, wherein: connecting steel bars are pre-embedded in the pouring frame, so that the pouring frame and the prefabricated road board are integrated into a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730056.2A CN113510838B (en) | 2021-06-29 | 2021-06-29 | Construction method of prefabricated pavement slab for fabricated pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730056.2A CN113510838B (en) | 2021-06-29 | 2021-06-29 | Construction method of prefabricated pavement slab for fabricated pavement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113510838A CN113510838A (en) | 2021-10-19 |
| CN113510838B true CN113510838B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110730056.2A Active CN113510838B (en) | 2021-06-29 | 2021-06-29 | Construction method of prefabricated pavement slab for fabricated pavement |
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| CN113510838A (en) | 2021-10-19 |
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