Lock catch type mechanical connection structure for precast slab piles

Abstract

The utility model relates to a precast slab pile lock catch type mechanical connection structure which comprises a lock catch type mechanical connection device, a precast pavement slab, a precast tubular pile and an in-pile preset sealing plate, the lock catch type mechanical connection device is composed of a female buckle and a male lock, and the in-pile preset sealing plate is arranged on the lower portion of the lock catch type mechanical connection device to prevent post-pouring concrete from falling off and losing. An annular connecting part is arranged at the pile plate connecting position of the prefabricated pavement slab, the prefabricated pipe pile is connected with the annular connecting part through a lock catch type mechanical connecting device, and connection of the prefabricated pavement slab and the prefabricated pipe pile is achieved through alignment and insertion locking of the male lock and the female lock.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field more specifically, design a prefabricated board pile lock catch formula mechanical connection structure. BACKGROUND

[0002] With the rapid growth of traffic volume, traffic pressure increases dramatically, there is a serious traffic congestion problem, affect the road traffic capacity, domestic highway is facing how to expand, no land, no soil development bottleneck. With the gradual highlighting of the advantages of fabricated structure, pile plate type soilless subgrade becomes a good solution, compared with the traditional subgrade, pile plate type soilless subgrade can save land requisition greatly, construction speed is fast, especially cancel the foundation treatment time of complex geological conditions, greatly reduce the construction period, solve the problems such as long construction time, complex process, many mechanical equipment, high cost, resource and environment waste of traditional road construction, realize the purpose of rapid construction of expansion project.

[0003] However, the pile plate type soilless subgrade construction technology still has the following deficiencies: in the connection between the prefabricated pavement slab and the prefabricated pipe pile, the connection mode of post-poured concrete consolidation is adopted, hoop installation, beam pouring and wet joint construction are needed, the concrete maintenance period is long, the construction process is complicated, which restricts the construction progress, the utility model provides a prefabricated board pile lock catch formula mechanical connection structure, which provides a new method for the rapid and reliable connection between the prefabricated pile and the prefabricated plate. UTILITY MODEL CONTENT

[0004] The utility model mainly aims at the above-mentioned problems encountered in the construction of the existing pile plate type soilless subgrade, provides a prefabricated board pile lock catch formula mechanical connection structure, has higher construction efficiency, shortens the construction time, and does not need to install hoop, beam pouring, simplifies the construction process, reduces the labor demand, and solves the connection problem between the prefabricated pavement slab and the prefabricated pipe pile of the existing pile plate type soilless subgrade.

[0005] The technical scheme of the utility model is as follows:

[0006] A prefabricated board pile lock catch formula mechanical connection structure, characterized by: including lock catch formula mechanical connection device, prefabricated pavement slab, prefabricated pipe pile, pile inside preset sealing plate, the lock catch formula mechanical connection device is located between the prefabricated pavement slab and the prefabricated pipe pile, is formed by female buckle and male lock, the prefabricated pavement slab is provided with annular connecting portion at pile plate connecting portion, the prefabricated pipe pile is connected with annular connecting portion through lock catch formula mechanical connection device, the connection of annular connecting portion of prefabricated pavement slab and pile end of prefabricated pipe pile is realized through the alignment and insertion of male lock and female buckle, the pile inside preset sealing plate is arranged in the prefabricated pipe pile, to prevent the loss of post-poured concrete.

[0007] As the utility model is preferred, the annular connecting part is arranged at the connecting position of the prefabricated pavement slab and the pile, and a pre-embedded sealing plate is arranged in the prefabricated pipe pile.

[0008] As the utility model is preferred, the male lock of the lock type mechanical connecting device is arranged at the end of the prefabricated pipe pile, the female lock is arranged at the end of the annular connecting part of the prefabricated pavement slab, and the male lock and the female lock can be arranged at 10-12, and the connection between the prefabricated pavement slab and the prefabricated pipe pile can be realized after alignment and insertion locking.

[0009] As the utility model is preferred, the core steel bar cage is inserted into the cavity of the annular connecting part, and after the steel bar cage is in place, the post-poured concrete is poured into the cavity of the annular connecting part. The core steel bar cage can be a prestressed steel bar, and an anchor is additionally arranged below the pre-embedded sealing plate in the pile, and the prestressed steel bar is tensioned.

[0010] Compared with the connection mode of the prefabricated pavement slab and the prefabricated pipe pile in the prior art pile slab type soilless roadbed technology, the utility model has the following advantages:

[0011] 1. The lock type mechanical connecting device construction method does not need to install a hoop and pour a beam, does not need to wait for the maintenance of concrete, has simple construction procedures, high mechanical construction efficiency, good engineering quality, saves construction cost, shortens the construction period, and reduces the safety risk of high-altitude operation.

[0012] 2. The prefabricated pavement slab is integrally poured with the annular connecting part when the prefabricated pavement slab is prefabricated in a factory, so that the engineering quality is guaranteed, and the post-period wet joint construction procedure is reduced.

[0013] 3. After the core steel bar cage is inserted into the cavity of the annular connecting part and the concrete is poured, the connection effect of the lock type mechanical connecting device is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 . Lock type mechanical connection structure of prefabricated pile slab

[0015] Fig. 2 . Pile slab connection schematic view

[0016] Fig. 3 . Prefabricated pavement slab schematic view

[0017] In the drawing: 1. Lock type mechanical connecting device; 2. Prefabricated pavement slab; 3. Prefabricated pipe pile; 4. Pre-embedded plate in pile; 5. Core steel bar cage; 6. Female lock; 7. Male lock; 8. Annular connecting part; 9. Cavity; 10. Longitudinal reinforcement in pile; 11. Reinforcement in slab; 12. Post-poured concrete. DETAILED DESCRIPTION

[0018] In order to further understand the content, characteristics and effects of the utility model, the following embodiments are exemplified, and are described in detail as follows with reference to the drawings.

[0019] Embodiment 1

[0020] As Figs. 1 to 3 shown, the utility model provides a prefabricated sheet pile lock catch type mechanical connection structure, including lock catch type mechanical connection device 1, prefabricated pavement slab 2, prefabricated pipe pile 3, pile in preset sealing plate 4, lock catch type mechanical connection device is located between prefabricated pavement slab and prefabricated pipe pile, is constituted by female buckle 6 and male lock 7, the prefabricated pavement slab sets up annular connecting part 8 at stake board connection, and the connection of annular connecting part of prefabricated pavement slab and prefabricated pipe pile stake end is realized through the alignment, insertion of male lock and female buckle of lock dead, the preset sealing plate in pile is arranged in prefabricated pipe pile, prevents the loss of post-poured concrete.

[0021] As a specific embodiment of the utility model, the female buckle and the male lock of the lock catch type mechanical connection device are respectively located at the annular connecting part of the prefabricated pavement slab and the end of the prefabricated pipe pile, and are arranged in 10-12. The annular connecting part is integrally poured with the prefabricated pavement slab in the factory, and during construction, the prefabricated pipe pile only needs to be driven into the specified position, the prefabricated pavement slab is hoisted and adjusted to the position of the annular connecting part, the female buckle and the male lock of the lock catch type mechanical connection device are aligned one by one, and then inserted and locked, so that the connection of the prefabricated pavement slab and the prefabricated pipe pile is completed. After the connection of the prefabricated sheet pile lock catch type mechanical connection structure is completed, the insert core steel reinforcement cage is inserted into the cavity 9 of the annular connecting part, and after the steel reinforcement cage is in place, the post-poured concrete is poured into the cavity of the connection, so as to improve the connection effect of the lock catch type mechanical connection device and ensure the engineering quality of the prefabricated sheet pile lock catch type mechanical connection structure.

[0022] With reference Fig. 3 to the utility model, the prefabricated pavement slab is increased with the annular connecting part on one side, the cavity is left in the middle of the annular connecting part for inserting the insert core steel reinforcement cage and pouring the concrete, so as to enhance the connection effect and ensure the quality.

[0023] By using the above scheme, the prefabricated pavement slab, the male lock and the female buckle are locked, and the post-poured concrete technology can quickly achieve the effect of connecting the prefabricated pavement slab and the prefabricated pipe pile, the prefabrication in the factory and the mechanized construction can greatly improve the construction efficiency, simplify the construction process, and save manpower and material resources.

[0024] Embodiment 2

[0025] Different from embodiment 1, the insert core steel reinforcement cage inserted at the cavity of the annular connecting part adopts prestressed steel, and an anchor is added on the embedded sealing plate in the prefabricated pipe pile. Before pouring the concrete, the prestressed steel is pre-tensioned and anchored to apply prestress, so as to enhance the strength of the steel reinforced concrete at the cavity and increase the reliability of the preset pile plate lock catch type mechanical connection structure.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and transformed in various ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A precast sheet pile lock-buckle type mechanical connection structure, characterized by: The utility model relates to a lock type mechanical connecting device, prefabricated pavement slab, prefabricated pipe pile and in-pile pre-installed sealing plate, the lock type mechanical connecting device is composed of female buckle and male lock, the lock type mechanical connecting device lower part is provided with in-pile pre-installed sealing plate, prevents the fall of post-poured concrete and loss, the prefabricated pavement slab is provided with annular connecting part at pile slab connecting place, the prefabricated pipe pile is connected with annular connecting part through lock type mechanical connecting device, and the connection of annular connecting part of prefabricated pavement slab and prefabricated pipe pile end is realized through the alignment of male lock and female buckle, insertion locking.

2. A precast sheet pile lock-buckle type mechanical connection structure according to claim 1, characterized in that: The prefabricated pavement slab is provided with the female buckle of the lock type mechanical connecting device at the end of the annular connecting part.

3. A precast sheet pile lock-buckle type mechanical connection structure according to claim 1, characterized in that: The prefabricated pipe pile is provided with the male lock of the lock type mechanical connecting device at the end, and the lower part of the male lock is pre-installed with a sealing plate to prevent the fall of post-poured concrete and loss.

4. A precast sheet pile lock-buckle type mechanical connection structure according to claim 1, characterized in that: The lock type mechanical connecting device can be provided with 10-12 female buckles below the annular connecting part of the prefabricated pavement slab, and 10-12 male locks are provided at the end of the prefabricated pipe pile, and the female buckles and the male locks correspond one by one.

5. A precast sheet pile lock-buckle type mechanical connection structure according to claim 1, characterized in that: After the alignment and insertion locking of the female buckle and the male lock of the lock type mechanical connecting device, a core bar reinforcement cage is inserted into the connecting cavity, and after the core bar reinforcement cage is in place, post-poured concrete is poured into the connecting cavity.

6. A precast sheet pile lock-buckle type mechanical connection structure according to claim 5, characterized in that: The core bar reinforcement cage can use prestressed steel, and an anchorage device is installed below the in-pile pre-installed sealing plate to tension the prestressed steel.

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