Pile plate type roadbed prefabricated slab mounting and supporting device

Abstract

The utility model discloses a pile plate type roadbed prefabricated slab mounting and supporting device, and relates to the technical field of pile plate type soilless roadbed prefabricated slab erection, in particular to the pile plate type roadbed prefabricated slab mounting and supporting device which comprises a prefabricated pipe pile, a steel hoop is mounted above the prefabricated pipe pile, supporting brackets are arranged on the two sides of the steel hoop, and the supporting brackets are connected with the prefabricated pipe pile. Sand cylinders are arranged above the supporting brackets, steel cross beams are installed above the sand cylinders, longitudinal tie pipes are arranged between the steel cross beams, longitudinal tie rods penetrate through the positions between the steel cross beams and the longitudinal tie pipes, and roadbed prefabricated slabs are laid above the steel cross beams. According to the pile plate type roadbed prefabricated slab mounting and supporting device, the sand cylinder is arranged, so that the pile plate type roadbed prefabricated slab mounting and supporting device has the effects that the height is convenient to adjust, and the mounting efficiency is high; the pile plate type roadbed prefabricated slab mounting and supporting device has the effects that the pressure of the prefabricated slab can be easily removed, screws can be conveniently screwed off, and the dismounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile-plate type soilless roadbed prefabricated plate erection, in particular to a pile-plate type roadbed prefabricated plate installation support device. Background Art

[0002] At present, the road construction adopts the filling and rolling roadbed construction technology, which faces prominent bottlenecks and constraints such as land and resources. The construction requirements of expressway construction are high, and the requirements and quality of rolling roadbed filling are higher. In addition to the permanent occupation of existing land, the high filling roadbed also requires a large amount of borrowed soil, which causes a great waste of resources. In order to overcome the shortcomings of the above-mentioned existing technologies, the pile-plate type soilless roadbed highway construction technology is innovatively applied, which reduces a large amount of earthwork usage and also reduces the permanent occupation of highway roadbed. The prefabricated board installation construction is a key process of pile-plate roadbed construction. In order to improve the construction efficiency of the prefabricated board installation and improve the construction quality, the prefabricated board needs to be installed with auxiliary support devices, among which the auxiliary support is a recyclable steel structure. However, since the auxiliary support is installed at high altitude and has a large mass, it is not convenient to adjust the height, resulting in low installation efficiency. After the prefabricated board is installed, the support device is subjected to great pressure, so it is not convenient to remove the screws, resulting in low removal efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a pile-plate type roadbed prefabricated slab installation support device, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above purpose, the utility model is implemented through the following technical scheme: a pile-plate type roadbed precast slab installation support device, including precast pipe piles, steel clamps are installed above the precast pipe piles, support legs are arranged on both sides of the steel clamps, sand cylinders are arranged above the support legs, steel beams are installed above the sand cylinders, longitudinal tie tubes are arranged between the steel beams, longitudinal tie rods pass between the steel beams and the longitudinal tie tubes, and roadbed precast slabs are laid above the steel beams.

[0005] Preferably, a layer of geotextile is added between the prefabricated pipe pile and the steel hoop. The geotextile can increase the friction between the prefabricated pipe pile and the steel hoop while protecting the prefabricated pipe pile from damage by the steel hoop.

[0006] Preferably, the steel hoop is welded from Q235 steel plates, the inner diameter of the steel hoop is the same as the outer diameter of the prefabricated pipe pile, and the steel hoop is connected with a plurality of high-strength bolts and a pre-tightening force is applied.

[0007] Preferably, the steel beam is an I-beam, and the steel beam has a certain length to span across multiple prefabricated pipe piles, and the height of the upper surface of the steel beam is accurately adjusted by a sand barrel.

[0008] Preferably, the longitudinal tie tube and the longitudinal tie rod are symmetrically installed on the front and rear sides of each prefabricated pipe pile, and the two ends of the longitudinal tie rod lock the steel beam and the longitudinal tie tube through hexagonal nuts. At this time, the spacing between the two steel beams is the same as the outer diameter of the prefabricated pipe pile.

[0009] Preferably, the middle position below the roadbed precast plate is thickened, the width of the thickened portion is larger than the outer diameter of the precast pipe piles, and the precast pipe piles are inserted into the thickened portion and connected by concrete pouring.

[0010] The utility model provides a pile-plate type roadbed prefabricated plate installation support device, which has the following beneficial effects:

[0011] 1. The pile-plate type roadbed prefabricated plate installation support device has the effect of easy height adjustment and high installation efficiency through the setting of the sand cylinder. The height-adjustable sand cylinder is used as a supporting component, so the steel hoop does not need to be carefully adjusted in height during installation, thereby improving the installation efficiency of the steel hoop. Since the height of the sand cylinder is easy to adjust, the installation height of the steel beam is also easy to adjust.

[0012] 2. The pile-plate type roadbed prefabricated panel installation support device, through the coordinated arrangement of the sand cylinder, the longitudinal tie tube and the longitudinal tie rod, enables the pile-plate type roadbed prefabricated panel installation support device to easily remove the pressure of the prefabricated panel, thereby facilitating the unscrewing of the screws and improving the disassembly efficiency. The steel beam is installed around the prefabricated pipe pile through the longitudinal tie tube and the longitudinal tie rod but is not fixed. The bottom of the steel beam is supported by the sand cylinder. At this time, only the sand inside the sand cylinder needs to be released and the height of the sand cylinder will be reduced, so that the pressure of the prefabricated panel will no longer act on the support device, thereby facilitating disassembly and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the cross section of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the longitudinal section of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the top view of the steel hoop of the utility model;

[0016] Figure 4 This is a structural schematic diagram of the front view of the steel clamp of the utility model;

[0017] Figure 5 It is a structural schematic diagram of a partial cross-sectional view of the utility model.

[0018] In the figure: 1. Prefabricated pipe piles; 2. Steel hoop; 201. Support corbel; 3. Sand cylinder; 4. Steel beam; 5. Longitudinal tie pipe; 6. Longitudinal tie rod; 7. Prefabricated roadbed slab. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 5 The utility model provides a technical solution: a pile-plate type roadbed prefabricated slab installation support device, comprising a prefabricated pipe pile 1, which is transported to the site for installation after being manufactured in the factory, a steel hoop 2 is installed on the top of the prefabricated pipe pile 1, and a layer of geotextile is added between the prefabricated pipe pile 1 and the steel hoop 2, the geotextile can increase the friction between the prefabricated pipe pile 1 and the steel hoop 2 while protecting the prefabricated pipe pile 1 from damage by the steel hoop 2, the steel hoop 2 is welded with Q235 steel plate, the inner diameter of the steel hoop 2 is the same as the outer diameter of the prefabricated pipe pile 1, the steel hoop 2 is connected with a plurality of high-strength bolts and a pre-tightening force is applied, support brackets 201 are arranged on both sides of the steel hoop 2, a sand cylinder 3 is arranged above the support bracket 201, a steel crossbeam 4 is installed above the sand cylinder 3, the steel crossbeam 4 is an I-beam, and the steel crossbeam 4 has a certain length and can span multiple prefabricated pipe piles 1 The height of the upper surface of the steel cross beam 4 is accurately adjusted by the sand cylinder 3. A longitudinal tie tube 5 is arranged between the steel cross beams 4. A longitudinal tie rod 6 passes between the steel cross beam 4 and the longitudinal tie tube 5. The longitudinal tie tube 5 and the longitudinal tie rod 6 are symmetrically installed on the front and rear sides of each prefabricated pipe pile 1. The two ends of the longitudinal tie rod 6 lock the steel cross beam 4 and the longitudinal tie tube 5 through hexagonal nuts. At this time, the spacing between the two steel cross beams 4 is the same as the outer diameter of the prefabricated pipe pile 1. A roadbed prefabricated plate 7 is laid on the top of the steel cross beam 4. The roadbed prefabricated plate 7 is transported to the site for installation after being manufactured in the factory. The middle position below the roadbed prefabricated plate 7 is thickened, and the width of the thickened part is larger than the outer diameter of the prefabricated pipe pile 1. The prefabricated pipe pile 1 is inserted into the thickened part and connected by concrete pouring. After the roadbed prefabricated plate 7 is firmly fixed, the sand cylinder 3 can be removed to easily remove the steel clamp 2 and the steel cross beam 4.

[0021] When in use, before construction, firstly carry out construction layout, measure the elevation of the top of the prefabricated pipe pile 1, and then calculate the elevation of the steel hoop 2 in the support device according to the design elevation of the pile-slab roadbed and mark it to facilitate the installation of the steel hoop 2. The steel hoop 2 is welded with a 12mm thick Q235 steel plate. The inner diameter of the hoop is the same as the outer diameter of the prefabricated pipe pile 1, and 10 10.9-grade M22 high-strength bolts are used to connect and apply preload. The installation height of the steel hoop 2 does not require precise calculation, so the efficiency of the installation can be improved. In the calculation of the height By default, the sand barrel 3 is filled with one third of sand. A layer of geotextile is pre-wrapped at the location where the steel hoop 2 is installed on the prefabricated pipe pile 1. The geotextile is used to increase the friction between the steel hoop 2 and the prefabricated pipe pile 1, and also to protect the prefabricated pipe pile 1 from being damaged by the steel hoop 2. After all the steel hoop 2 is installed, a sand barrel 3 is placed on its supporting bracket 201. The height of the sand barrel 3 can be adjusted according to the amount of sand filled inside, and then the amount of sand inside the sand barrel 3 can be added or subtracted to accurately adjust the elevation of the supporting steel beam to meet the installation accuracy of the roadbed prefabricated plate 7. Further, the sand barrel 3 is used to adjust the height of the supporting steel beam. The truck lifts the steel beam 4 and places it on the sand cylinder 3, and further installs the longitudinal tie tube 5 and the longitudinal tie rod 6 between the two steel beams 4, so that the steel beam 4 is fixed on both sides of the prefabricated pipe pile 1, wherein the longitudinal tie tube 5 and the longitudinal tie rod 6 are symmetrically installed on the front and rear sides of each prefabricated pipe pile 1, and the two ends of the longitudinal tie rod 6 lock the steel beam 4 and the longitudinal tie tube 5 through hexagonal nuts. At this time, the spacing between the two steel beams 4 is the same as the outer diameter of the prefabricated pipe pile 1. At this time, the steel beam 4 is just hugged around the prefabricated pipe pile 1 and is not fixed, and the roadbed prefabricated slab is further 7 is hoisted onto the prefabricated pipe pile 1 and is held up by the steel crossbeam 4 to maintain balance. The roadbed prefabricated plate 7 is further fixedly connected to the prefabricated pipe pile 1 by concrete pouring. When the roadbed prefabricated plate 7 and the prefabricated pipe pile 1 are firmly fixed, the supporting device can be removed. At this time, it is only necessary to open the sand discharge port below the sand cylinder 3 to discharge the sand in the sand cylinder 3, and the sand cylinder 3 will automatically drop in height. After the height of the sand cylinder 3 drops, the steel hoop 2 and the steel crossbeam 4 no longer bear the gravity of the roadbed prefabricated plate 7. At this time, the bolts connecting the steel hoop 2 and the steel crossbeam 4 can be easily removed.

[0022] To sum up, the installation support device of the pile-plate type roadbed prefabricated plate 7 uses the height-adjustable sand cylinder 3 as a supporting component. Therefore, there is no need to carefully adjust the height of the steel hoop 2 during installation, which improves the installation efficiency of the steel hoop 2. Since the height of the sand cylinder 3 is easy to adjust, the installation height of the steel beam 4 is also easy to adjust. The steel beam 4 is installed around the prefabricated pipe pile 1 through the longitudinal tie tube 5 and the longitudinal tie rod 6 but is not fixed. The bottom of the steel beam 4 is supported by the sand cylinder 3. At this time, only the sand inside the sand cylinder 3 needs to be released, and the height of the sand cylinder 3 will be reduced, so that the pressure of the prefabricated plate will no longer act on the support device, thereby facilitating disassembly and improving efficiency.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pile-sheet type roadbed prefabricated slab installation support device, comprising a prefabricated pipe pile (1), characterized in that: A steel hoop (2) is installed above the prefabricated pipe pile (1), support brackets (201) are arranged on both sides of the steel hoop (2), a sand cylinder (3) is arranged above the support bracket (201), a steel crossbeam (4) is installed above the sand cylinder (3), longitudinal tie pipes (5) are arranged between the steel crossbeams (4), longitudinal tie rods (6) pass between the steel crossbeams (4) and the longitudinal tie pipes (5), and a roadbed prefabricated slab (7) is laid above the steel crossbeam (4).

2. The installation support device for pile-sheet type roadbed prefabricated slab according to claim 1 is characterized in that: A layer of geotextile is added between the prefabricated pipe pile (1) and the steel hoop (2). The geotextile can increase the friction between the prefabricated pipe pile (1) and the steel hoop (2) and protect the prefabricated pipe pile (1) from being damaged by the steel hoop (2).

3. The installation support device for pile-sheet type roadbed prefabricated slab according to claim 1 is characterized in that: The steel hoop (2) is welded from Q235 steel plates. The inner diameter of the steel hoop (2) is the same as the outer diameter of the prefabricated pipe pile (1). The steel hoop (2) is connected by a plurality of high-strength bolts and a pre-tightening force is applied.

4. The installation support device for pile-sheet type roadbed prefabricated slab according to claim 1 is characterized in that: The steel cross beam (4) is an I-beam, and has a certain length so as to be able to span across a plurality of prefabricated pipe piles (1). The height of the upper surface of the steel cross beam (4) is precisely adjusted by means of a sand cylinder (3).

5. The installation support device for pile-sheet type roadbed prefabricated slab according to claim 1 is characterized in that: The longitudinal tie tube (5) and the longitudinal tie rod (6) are symmetrically installed on the front and rear sides of each prefabricated pipe pile (1), and the two ends of the longitudinal tie rod (6) are used to lock the steel cross beam (4) and the longitudinal tie tube (5) through hexagonal nuts. At this time, the distance between the two steel cross beams (4) is the same as the outer diameter of the prefabricated pipe pile (1).

6. The installation support device for pile-sheet type roadbed prefabricated slab according to claim 1 is characterized in that: The middle part below the roadbed prefabricated plate (7) is thickened, the width of the thickened part is larger than the outer diameter of the prefabricated pipe pile (1), and the prefabricated pipe pile (1) is inserted into the thickened part and connected by concrete pouring.

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