CN212835365U

CN212835365U - Construction structure of PHC tubular pile

Info

Publication number: CN212835365U
Application number: CN202021052967.1U
Authority: CN
Inventors: 蔡旭东; 邓海周; 周子乐; 唐俊; 张新平; 刘熙
Original assignee: GUANGZHOU XIEAN CONSTRUCTION ENGINEERING CO LTD
Current assignee: GUANGZHOU XIEAN CONSTRUCTION ENGINEERING CO LTD
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-03-30
Anticipated expiration: 2030-06-09

Abstract

The utility model discloses a construction structures of PHC tubular pile, it includes pile cap and prefabricated pipe die, and the pile cap is provided with the cushion layer of bearing platform, and the pile cap is provided with the steel reinforcement cage, and prefabricated pipe die is connected with the pile cap, and prefabricated pipe die is provided with the steel reinforcement cage. The prefabricated pipe die is produced in a factory, and is hoisted on site to be in butt joint with the pile cap in construction, so that the construction period of site construction is shortened, and the construction efficiency is accelerated. The utility model discloses but wide application in building construction field.

Description

Construction structure of PHC tubular pile

Technical Field

The utility model relates to a construction technical field, in particular to PHC tubular pile's construction structure.

Background

A construction technology for a concrete pipe die without dismantling a PHC pile head is a technology for expanding the PHC pile head under sandy soil geological conditions with high underground water level and large seepage. The formwork supporting method commonly adopted by the existing PHC pile head expansion method generally utilizes formwork supporting technologies such as wood formwork and brick moulding bed and the like.

The wood pattern needs to be subjected to support procedures such as pulling, reinforcing and the like during installation, the construction period is long, the quality of the wood pattern is easily damaged after the wood pattern is soaked in underground water for a long time, and the forming quality of concrete is difficult to ensure; the construction difficulty of installing the cylindrical wood pattern is high, and the strength of the cylindrical wood pattern is difficult to ensure; the concrete volume that rectangle wood pattern needs increases, and need dismantle after the wood pattern installation, and it is great to consume the manpower, the period of working is long.

The brick moulding bed is made of standard bricks and is poured after a certain strength. The construction difficulty of building the cylindrical brick forming die is high, the airtightness cannot be guaranteed, and if the rectangular brick forming die is built, the required concrete amount is increased, so that the construction cost is increased; the cushion layer is required to be waterproof, the waterproof layer is required to extend to the brick molding bed, and then the next procedure can be carried out, so that the construction period is long.

SUMMERY OF THE UTILITY MODEL

For at least one among the above-mentioned technical problem of solution, shorten on-the-spot construction period, the utility model provides a PHC tubular pile's construction structure, the technical scheme who adopts as follows:

the utility model provides a construction structures of PHC tubular pile includes pile cap and prefabricated pipe die, the pile cap is provided with the bearing platform bed course, the pile cap is provided with the steel reinforcement cage, prefabricated pipe die be used for with the pile cap is connected, prefabricated pipe die is provided with the steel reinforcement cage.

In some embodiments of the present invention, the pile cap is provided with a water stop.

In some embodiments of the present invention, the water stop is a rubber member.

In certain embodiments of the present invention, a steel supporting plate is provided in the prefabricated pipe mold.

The utility model discloses an in some embodiments, the pre-buried annular stagnant water steel sheet of tip of prefabricated pipe die.

The utility model discloses an in some embodiments, the stagnant water steel sheet sets up prefabricated pipe die tip half wall thickness department.

The embodiment of the utility model has the following beneficial effect at least: the prefabricated pipe die is produced in a factory, hoisted on site and butted with a pile cap for construction, and the PHC pile is cast to enlarge the pile head, shorten the construction period of site construction and accelerate the construction efficiency. The utility model discloses but wide application in building construction field.

Drawings

Fig. 1 is a schematic structural view of the construction structure.

Detailed Description

The present invention will be further described with reference to fig. 1.

The utility model relates to a construction structures of PHC tubular pile, this construction structures are used for enlarging the pile head of PHC tubular pile and handle, strengthen the holistic horizontal thrust of resistance of building. The construction structure comprises a pile cap 11 and a prefabricated pipe die 13, wherein the pile cap 11 is provided with a cap cushion layer 12, and the pile cap 11 is arranged at one end of the prefabricated pipe die 13. Pile cap 11 is provided with the steel reinforcement cage, and prefabricated pipe die 13 is used for being connected with pile cap 11, specifically, fills the concrete through the steel reinforcement cage between prefabricated pipe die 13 and the pile cap 11 and is connected. In order to ensure that the prefabricated pipe die 13 has better connectivity with the pile cap 11, the height of the prefabricated pipe die 13 is increased, and the prefabricated pipe die 13 extends into the cushion layer 12 of the pile cap.

Concrete protection layer cushion blocks are placed along the prefabricated pipe die 13 and the cushion layer 12 of the bearing platform, and the reinforcement cage is placed in the concrete protection layer cushion blocks and is tightly attached to the concrete protection layer cushion blocks.

The prefabricated pipe die 13 is prefabricated in a factory, is hoisted on site, and is simple and convenient. In the field construction, after the prefabricated pipe die 13 is placed and backfilled to the elevation of the cushion layer 12 of the bearing platform, the concrete of the enlarged pile head is poured, and after the concrete is solidified, the prefabricated pipe die 13 is free from being detached. Compared with the cost input by the traditional wood mold and brick moulding bed process, the construction method adopting the construction structure greatly reduces the cost, reduces the manpower and material resources and shortens the construction period.

By adopting the construction structure, the construction efficiency is high, the drawing of the prefabricated pipe die 13 is delivered to a factory for prefabrication, and the on-site masonry die-filling time and the process intermittence time of workers are saved. According to the actual needs in scene, the prefabricated pipe die 13 size of rational design reduces the cost, and on-the-spot hoist and mount is simple and easy convenient, only needs small-size hoisting machinery and a small amount of manpower cooperation just can install in place and prefabricated pipe die 13 need not to demolish, has saved the labour cost, accords with the development requirement of green construction, cost reduction increase. The problem of high water level that the mould filling in-process of expanding the pile head meets has effectively been solved, utilizes the confined space that cushion 12 and prefabricated pipe die 13 formed, and the separation quicksand gathers, also can bear the groundwater for a long time and soak simultaneously, has guaranteed the construction quality that expands the pile head.

The utility model discloses an in some embodiments, prefabricated pipe die 13 is placed to the pre-buried annular stagnant water steel sheet of tip of prefabricated pipe die 13 before the bedding concrete initial set, utilizes the self gravity of prefabricated pipe die 13 to impress the stagnant water steel sheet in the bedding concrete, makes better the linking of stagnant water steel sheet and bedding concrete together, prevents that groundwater from infiltrating from the construction gap of prefabricated pipe die 13 and bedding concrete, has strengthened prefabricated pipe die 13's stagnant water function. Specifically, the water stop steel plate is arranged at the position of one half of the wall thickness of the end part of the prefabricated pipe die 13.

In some embodiments of the present invention, the pile cap 11 is provided with a water stop 15, and specifically, the water stop 15 is made of rubber. Before the pipe die bed course is pour, install round waterstop 15 at PHC tubular pile with the mode of cold gluing in enlarging pile head bed course elevation department, can prevent that groundwater from permeating from the construction gap of pipe die bed course and pile body, further reinforcing stagnant water effect.

The utility model discloses an in some embodiments, be provided with steel layer board 14 in the prefabricated pipe die 13, the internal diameter of the prefabricated pipe die 13 of diameter ratio of steel layer board 14 is little slightly, pours concrete into in the prefabricated pipe die 13.

The successful application of the construction technology for removing the concrete pipe die from the surface of the PHC pipe pile expanded pile head has great significance for the construction efficiency of the pile head expanded on the top of the foundation, the control cost and the guarantee of the engineering quality, greatly shortens the time for expanding the PHC pipe pile head, effectively solves the construction problem of high underground water level and fast infiltration, has a promoting effect on the construction technology of the pile head expanded on the top of the foundation, and has positive significance for the development of the construction engineering industry.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a construction structures of PHC tubular pile which characterized in that: comprises that

The pile cap (11), the pile cap (11) is provided with a cap cushion layer (12), and the pile cap (11) is provided with a reinforcement cage;

prefabricated pipe die (13), prefabricated pipe die (13) be used for with pile cap (11) are connected, prefabricated pipe die (13) are provided with the steel reinforcement cage.

2. The construction structure of PHC tubular pile of claim 1, characterized in that: the pile cap (11) is provided with a water stop (15).

3. The construction structure of PHC tubular pile of claim 2, characterized in that: the water stop (15) is made of rubber.

4. The construction structure of PHC tubular pile of claim 1, characterized in that: and a steel supporting plate (14) is arranged in the prefabricated pipe die (13).

5. The construction structure of PHC tubular pile of claim 1, characterized in that: and an annular water stop steel plate is embedded at the end part of the prefabricated pipe die (13).

6. The construction structure of PHC tubular pile of claim 5, characterized in that: the water stop steel plate is arranged at the position of one half of the wall thickness of the end part of the prefabricated pipe die (13).