CN222375377U - A high-strength prestressed pipe pile - Google Patents

Abstract

The utility model relates to the technical field of prestressed pipe piles, in particular to a high-strength prestressed pipe pile which comprises a prestressed pipe pile body, wherein an anti-collapse metal sleeve is sleeved on the side wall of the outer end of the prestressed pipe pile body, metal blocks are arranged at the front end and the rear end of the prestressed pipe pile body through fastening bolts, the anti-collapse metal sleeve is positioned between the two metal blocks, the outer wall of the anti-collapse metal sleeve is flush with the outer wall of the metal block, a plurality of reinforcing devices are added on the outer sides of two pipe pile metal end plates of the prestressed pipe pile at equal intervals, the anti-collapse metal sleeve is sleeved on the outer sides of the prestressed pipe pile, the prestressed adjustment can be carried out on the outer sides of the pipe pile by adjusting the plurality of anti-collapse reinforcing devices, so that the plurality of adjusted anti-collapse reinforcing devices form maximum tensile stress on the outer sides of the prestressed pipe pile, and the dimensional change of the whole pipe pile system is always kept within a certain range under the action of the anti-collapse reinforcing devices, so that the pipe pile is prevented from collapsing in the stress process.

Description

High-strength prestressed pipe pile

Technical Field

The utility model relates to the technical field of cloth prestressed pipe piles, in particular to a high-strength prestressed pipe pile.

Background

The prestressed pipe pile is a foundation engineering construction technology and is mainly characterized by that it uses steel bar or prestressed steel bundle which is built-in into the steel pipe, and uses the steel material to make it produce prestress, then uses concrete to make it be fixed in the ground. The prestressed pipe pile can provide strong bearing capacity and excellent anti-seismic performance, and is widely applied to the fields of high-rise buildings, electric power facilities, hydraulic engineering and the like.

However, after the prestressed pipe pile is installed inside a building, the building topography is changeable, so that the stress of all parts of the prestressed pipe pile inside the building can be different in many times, the pile body strength can be easily damaged when one side of the prestressed pipe pile is stressed too much, and the situation that the prestressed pipe pile is cracked and damaged is caused.

Disclosure of utility model

The utility model aims to provide a high-strength prestressed pipe pile so as to solve the problems in the prior art.

The high-strength prestressed pipe pile comprises a prestressed pipe pile body, wherein an anti-collapse metal sleeve is sleeved on the side wall of the outer end of the prestressed pipe pile body, metal blocks are arranged at the front end and the rear end of the prestressed pipe pile body through fastening bolts, the anti-collapse metal sleeve is positioned between the two metal blocks, and the outer wall of the anti-collapse metal sleeve is flush with the outer wall of the metal blocks;

A plurality of reinforcing structures are uniformly and fixedly arranged on the outer walls of the two metal blocks.

Preferably, the inside of the prestressed pipe pile body is provided with a reinforcing rib, and one end of the reinforcing rib penetrates out of the front end and the rear end of the prestressed pipe pile body.

Preferably, the side walls of the metal block are uniformly provided with a plurality of reinforcing steel bar insertion holes and fixing holes respectively, the reinforcing steel bar insertion holes and the fixing holes are arranged in a crossing manner, the fixing holes penetrate through the front and rear end side walls of the metal block, and the fixing holes are convex.

Preferably, a limiting sleeve is fixedly arranged on the side wall of the inner end of the metal block, one end of the reinforcing rib is inserted into the fixing hole and then is in threaded connection with the fastening bolt, at the moment, the metal block is fixed at the end head of the prestressed pipe pile body, and meanwhile, the limiting sleeve is inserted into the prestressed pipe pile body.

Preferably, the reinforcing device comprises a fixed block and a reinforcing screw, wherein the fixed block is provided with a plurality of blocks, the side wall of the fixed block is provided with a through hole, and the fixed block is uniformly and fixedly arranged on the outer wall of the metal block.

Preferably, a baffle is fixedly arranged on the side wall of one end of the reinforcing screw, and the other end of the reinforcing screw sequentially penetrates through the fixing blocks on the two metal blocks and is in threaded connection with a nut.

Preferably, the length of the reinforcement screw is less than the length between the rear outer portions of the two metal blocks.

Compared with the prior art, the utility model has the beneficial effects that:

Through the equidistant a plurality of reinforcing means that have in the outside of two tubular pile metal end plates of this prestressing force tubular pile, the outside cover of prestressing force tubular pile is connected and is prevented collapsing the metal cover, after the prestressing force tubular pile buries into inside the building, the accessible is adjusted a plurality of reinforcing means that prevent collapsing and is carried out prestressing force adjustment in the tubular pile outside for a plurality of reinforcing means that prevent collapsing that adjust form a maximum tensile stress in the prestressing force tubular pile outside, along with the continuous increase of soil body compaction and earth's surface load, the load of prestressing force tubular pile increases gradually, but under the effect of reinforcing means that prevents collapsing, the dimensional change of whole tubular pile system remains in certain limit all the time, thereby avoided the tubular pile to collapse in the atress in-process.

Drawings

FIG. 1 is an exploded view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a metal block structure according to the present utility model;

FIG. 3 is a schematic diagram of the overall structure of the present utility model.

The pile comprises a prestressed pipe pile body, reinforcing ribs, metal blocks, reinforcing steel bar jacks, fixing holes, fixing blocks, 7, perforations, 8, limiting sleeves, 9, anti-collapse metal sleeves, 10, reinforcing screws, 11, baffles, 12 and fastening bolts.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 3, the utility model provides a technical scheme that the high-strength prestressed pipe pile comprises a prestressed pipe pile body 1, wherein an anti-collapse metal sleeve 9 is sleeved on the side wall of the outer end of the prestressed pipe pile body 1, metal blocks 3 are arranged at the front end and the rear end of the prestressed pipe pile body 1 through fastening bolts 12, the anti-collapse metal sleeve 9 is positioned between the two metal blocks 3, the outer wall is flush with the outer wall of the metal blocks 3, reinforcing ribs 2 are arranged in the prestressed pipe pile body 1, the reinforcing ribs 2 are vertical reinforcing bars on a reinforcing bar cage, and the two ends of the reinforcing ribs 2 penetrate out of the front end and the rear end of the prestressed pipe pile body 1 respectively.

A plurality of reinforcing steel bar insertion holes 4 and fixing holes 5 are uniformly formed in the side wall of the metal block 3 respectively, the reinforcing steel bar insertion holes 4 and the fixing holes 5 are arranged in a crossing mode, the fixing holes 5 penetrate through the front end side wall and the rear end side wall of the metal block 3, the fixing holes 5 are convex, the outer end opening of the fixing holes 5 is larger than the inner end opening, a limit sleeve 8 is fixedly mounted on the inner end side wall of the metal block 3, the diameter of the limit sleeve 8 is smaller than the inner diameter of the prestressed pipe pile body 1, one end of the reinforcing rib 2 is inserted into the fixing holes 5 and then is in threaded connection with a fastening bolt 12, the fastening bolt 12 is located on the inner side of the larger end of the fixing holes 5, the reinforcing rib 2 is also located in the fixing holes 5, at the moment, the metal block 3 is fixed at the end of the prestressed pipe pile body 1, meanwhile, the limit sleeve 8 is inserted into the prestressed pipe pile body 1, the outer wall of the limit sleeve 8 and the inner end side wall of the prestressed pipe pile body 1 are fixedly connected, meanwhile the metal block 3 plays a limiting role in the anti-collapse metal sleeve 9 sleeved outside the prestressed pipe pile body 1, the strength of the prestressed pipe pile body 1 is reinforced, and the stress concentration of the pile body is avoided, and the stress bearing force and the stress safety of the pile is ensured in the process is ensured.

Before the prestressed pipe pile is used, site survey, measurement and marking are required, safety measures and management system of construction are determined, construction safety and quality are guaranteed, pit digging is carried out on the construction site, the prestressed pipe pile is sunk into soil, sinking pipes can be carried out by adopting methods such as manual, mechanical or hydraulic pressure, mechanical equipment is recommended to be adopted for sinking pipes, construction efficiency and quality are improved, then prestressed steel bars are respectively arranged in the pipes and outside the pipes according to design requirements, tensioning and anchoring are carried out through various prestressed construction equipment to form a prestressed state, after the arrangement of the prestressed steel bars is completed according to the design scheme, grouting materials are filled in the prestressed pipe body, the whole pipe body inner cavity is filled with grouting materials, plugging treatment is carried out at a pipe orifice, and finally quality acceptance including strength test, ultimate elongation test of the steel bars, grouting quality inspection and the like are required after the completion of the prestressed pipe pile.

A plurality of reinforcing structures are uniformly and fixedly arranged on the outer walls of the two metal blocks 3, the reinforcing device comprises a fixed block 6 and a reinforcing screw rod 10, the fixed block 6 is provided with a plurality of blocks, the side wall of the fixed block 6 is provided with a through hole 7, the fixed block 6 is uniformly and fixedly arranged on the outer wall of the metal block 3, a baffle 11 is fixedly arranged on the side wall of one end of the reinforcing screw rod 10, the other end of the reinforcing screw rod 10 sequentially passes through the fixed block 6 on the two metal blocks 3 and is in threaded connection with a nut, and the length of the reinforcing screw rod 10 is smaller than the length between the outer parts of the rear ends of the two metal blocks 3;

When the prestressed pipe pile body 1 is vertically inserted into the pre-buried hole in the ground, the nuts on the reinforcing devices face upwards at the moment, the nuts are exposed out of the ground, the tensile stress generated by the single reinforcing device is correspondingly regulated according to the difference of the prestress reinforcing directions, and in specific operation, the nuts are driven to rotate only by means of a spanner, the nuts can move towards the direction of the fixed block 6 through the pushing action of threads, the nuts are blocked outside the fixed block 6, the baffle 11 is blocked outside the other metal block 3, the reinforcing screw 10 is pulled outwards along with the continued rotation of the nuts, so that clamping force is generated between the reinforcing screw 10 and the nuts and the baffle 11, the clamping force can be directly applied to the metal blocks 3 at the two ends of the prestressed pipe pile body 1, tensile stress is generated between the two metal blocks 3, and the tensile stress can avoid the crack generated by the stress concentration of the prestressed pipe pile body 1 in the construction process, so that the bearing force and safety of the pipe pile are ensured.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A high-strength prestressed pipe pile, comprising: a prestressed pipe pile body (1), characterized in that: an anti-collapse metal sleeve (9) is sleeved on the outer end side wall of the prestressed pipe pile body (1), metal blocks (3) are installed at both the front and rear ends of the prestressed pipe pile body (1) through fastening bolts (12), the anti-collapse metal sleeve (9) is located between the two metal blocks (3), and the outer wall of the anti-collapse metal sleeve (9) is flush with the outer wall of the metal block (3); A plurality of reinforcement structures are evenly and fixedly mounted on the outer walls of the two metal blocks (3). 2. A high-strength prestressed pipe pile according to claim 1, characterized in that: a reinforcing rib (2) is provided inside the prestressed pipe pile body (1), and two ends of the reinforcing rib (2) respectively pass through the front and rear ends of the prestressed pipe pile body (1). 3. A high-strength prestressed pipe pile according to claim 1, characterized in that: a plurality of steel bar insertion holes (4) and fixing holes (5) are evenly arranged on the side walls of the metal block (3), the steel bar insertion holes (4) and the fixing holes (5) are cross-arranged, the fixing holes (5) penetrate the front and rear end side walls of the metal block (3), and the fixing holes (5) are convex. 4. A high-strength prestressed pipe pile according to claim 2, characterized in that: a limiting sleeve (8) is fixedly installed on the inner end side wall of the metal block (3), one end of the reinforcing rib (2) is inserted into the fixing hole (5) and then threadedly connected with the fastening bolt (12), at which time the metal block (3) is fixed at the end of the prestressed pipe pile body (1), and the limiting sleeve (8) is inserted into the prestressed pipe pile body (1). 5. A high-strength prestressed pipe pile according to claim 1, characterized in that: the reinforcement structure includes a fixed block (6) and a reinforcement screw (10), and the fixed block (6) is provided with a plurality of blocks, a through hole (7) is opened on the side wall of the fixed block (6), and the fixed block (6) is evenly fixedly installed on the outer wall of the metal block (3). 6. A high-strength prestressed pipe pile according to claim 5, characterized in that a baffle (11) is fixedly installed on the side wall of one end of the reinforcing screw (10), and the other end of the reinforcing screw (10) passes through the fixing blocks (6) on the two metal blocks (3) in sequence and is threadedly connected with a nut. 7. A high-strength prestressed pipe pile according to claim 5, characterized in that the length of the reinforcing screw rod (10) is smaller than the length between the outer portions of the rear ends of the two metal blocks (3).