CN219470937U - Prefabricated pile cap of solid square pile - Google Patents

Abstract

The utility model discloses a precast pile cap of a solid square pile, which relates to the technical field of precast piles and comprises a cap body formed by casting concrete, wherein a connecting base plate is pre-buried on the inner side wall of the cap body, bolt holes are formed in the side wall of the cap body and the connecting base plate, positioning bolts penetrate through the bolt holes and are used for being connected with a pile body, and a plurality of layers of steel wire meshes are arranged in the concrete on the upper side of the cap body; the inside of the cap body is provided with a vibration damping cavity, a vibration damping column is arranged in the vibration damping cavity, springs are arranged at two ends of the vibration damping column, and the outer side wall of the vibration damping column is of a rough structure and can be rubbed with the inner wall of the vibration damping cavity. According to the utility model, the vibration damping column in friction fit with the vibration damping cavity is arranged in the cap body, so that the vibration damping column absorbs the vibration peak of hammering at the moment of hammering each time, and the vibration damping column is converted into heat through the friction with the vibration damping cavity, so that the pile body is prevented from being damaged under long-term hammering impact.

Description

Prefabricated pile cap of solid square pile

Technical Field

The utility model relates to the technical field of precast piles, in particular to a precast pile cap of a solid square pile.

Background

The construction of the precast pile is divided into a static pressure mode and a hammering mode, and when the soil quality of an engineering site is harder, a pile cap is required to be installed for the precast pile to play a role in protecting a pile body, so that the pile body is prevented from being damaged, and the condition of pile repairing is reduced.

Along with the improvement of the requirements of technical development, environmental protection, energy conservation, consumption reduction and the like, the prefabricated pile cap is obviously the main development trend. The tubular pile manufactured by the prefabricated method has high production efficiency and low environmental pollution degree on a construction site, but the connection strength of the pile cap and the pile body by the prefabricated method is still one of factors limiting the wide use of the pile cap, and the pile cap also needs to lighten the impact force of hammering on the pile body so as to prevent the pile body from being damaged.

Disclosure of Invention

The utility model aims to provide a precast pile cap of a solid square pile, which is used for improving the connection strength of the precast pile cap and a pile body and reducing the impact force of hammering on the pile body.

The technical aim of the utility model is realized by the following technical scheme:

the prefabricated pile cap comprises a cap body formed by casting concrete, wherein a connecting base plate is pre-embedded on the inner side wall of the cap body, bolt holes are formed in the side wall of the cap body and the connecting base plate, positioning bolts penetrate through the bolt holes and are used for being connected with a pile body, and a plurality of layers of steel wire meshes are arranged in the concrete on the upper side of the cap body; the inside of the cap body is provided with a vibration damping cavity, a vibration damping column is arranged in the vibration damping cavity, springs are arranged at two ends of the vibration damping column, and the outer side wall of the vibration damping column is of a rough structure and can be rubbed with the inner wall of the vibration damping cavity.

The utility model is further provided with: and a flanging is arranged on one side of the connecting backing plate facing the pile cap and used for contacting with the top of the pile body.

The utility model is further provided with: the bottom of the vibration reduction cavity (6) is connected with a turned edge (5) of the connecting base plate (2), and a connecting structure is arranged between the side wall of the vibration reduction cavity (6) and the outer shell of the metal cap body (1).

The utility model is further provided with: the top of the cap body (1) is provided with a buffer layer (11) in an adhesive mode.

The utility model is further provided with: and wavy buffer steel wires are arranged between two layers of adjacent steel wire meshes and are connected with the adjacent steel wire meshes in a binding way.

The utility model is further provided with: buffer steel wires which are adjacent up and down are crisscrossed.

The utility model is further provided with: the compressive strength of the concrete of the cap body is higher than that of the concrete of the pile body.

The utility model is further provided with: the thickness of the cap body is more than or equal to 300mm.

In summary, the beneficial technical effects of the utility model are as follows:

through set up the damping post with damping chamber friction fit in the cap body, at the instantaneous of hammering at every turn, the vibration peak of hammering is absorbed to the damping post to through its friction with damping chamber turn into heat, avoid the pile body impaired under long-term hammering impact.

Drawings

Fig. 1 is a schematic diagram of the structure of an embodiment of the present utility model.

Reference numerals: 1. a cap body; 2. connecting the backing plate; 3. bolt holes; 4. a positioning bolt; 5. flanging; 6. a vibration damping cavity; 7. a vibration damping column; 8. a spring; 9. a steel wire mesh; 10. buffering the steel wire; 11. and a buffer layer.

Detailed Description

The present utility model will be described more fully hereinafter with reference to the accompanying examples.

Referring to fig. 1, a prefabricated pile cap of a solid square pile comprises a cap body 1 formed by concrete pouring, wherein the cap body 1 can be buckled on a pile head, a connecting base plate 2 is pre-buried on the inner side wall of the cap body 1, bolt holes 3 are formed in the side wall of the cap body 1 and the connecting base plate 2, and positioning bolts 4 are arranged in the bolt holes 3 in a penetrating manner and are used for being connected with a pile body. The flange 5 is arranged on one side of the connecting backing plate 2 facing the pile cap and is used for being contacted with the top of the pile body, so that the connecting backing plate 2 and the flange 5 thereof are contacted with the pile body and are connected through positioning bolts, and the connection strength of the prefabricated pile cap and the pile body can be effectively enhanced.

The inside of the cap body 1 is provided with a vibration reduction cavity 6, the side wall of the vibration reduction cavity 6 is made of metal, and the bottom of the vibration reduction cavity 6 is connected with the flange 5 of the connecting backing plate 2 through welding. The side wall of the vibration damping cavity 6 is provided with a connecting and fixing structure with the metal pile cap casting body shell, which is a fixing column in the embodiment, and is connected with the side wall of the vibration damping cavity 6 and the metal pile cap casting body shell through welding. The damping cavity 6 is internally provided with a damping column 7, two ends of the damping column 7 are provided with springs 8, and the outer side wall of the damping column 7 is of a rough structure and can be rubbed with the inner wall of the damping cavity 6. In this way, the energy of hammering can be transmitted to the pile body below each time the cap body 1 is hammered. Meanwhile, the vibration reduction column 7 in the cap body 1 can move up and down in the vibration reduction cavity 6 and rub with the vibration reduction cavity 6, so that the instantaneous impact vibration peak received by the cap body 1 is absorbed and converted into heat energy, the vibration peak is prevented from being transmitted to the pile body, and the pile body is prevented from being damaged under long-term hammering impact.

Three-layer steel wire meshes 9 are arranged in the concrete on the upper side of the cap body 1, a plurality of wavy buffer steel wires 10 are arranged between every two adjacent layers of steel wire meshes 9, the buffer steel wires 10 are vertically and horizontally arranged in a staggered mode, the buffer steel wires 10 are connected with the adjacent steel wire meshes 9 in a binding mode, the buffer steel wires 10 are used for connecting all layers of steel wire meshes 9, the buffer steel wires 10, the steel wire meshes 9 and the concrete form the steel wire mesh 9 concrete, the steel wire meshes 9 can absorb the impact force of hammering each time of a pile hammer while enhancing the strength of the concrete, the opposite pile plays a role of buffering, so that the pile head can be prevented from being crushed and damaged under the impact effect, and on the other hand, the pile body can be prevented from cracking.

The top of the cap body 1 is provided with a buffer layer 11 in an adhesive mode, and the buffer layer 11 is made of rubber materials or metal materials with high flexibility. In this way, the impact force generated by hammering can be further relieved through the buffer layer 11, and the protection effect on the pile body is enhanced.

In order to achieve an effective cushioning effect, the thickness of the cap 1 is required to be 300mm or more.

The working principle of the embodiment is as follows: when in construction, the cap body 1 is buckled on the pile head, and then the cap body 1 and the pile head are fixed together by the positioning bolt 4. In the hammering process, firstly, the buffer layer 11 can absorb the impact force of the pile hammer and protect the upper side of the cap body 1 from being damaged. The cap body 1 can absorb a part of impact force, the vibration damping column 7 in the cap body 1 can move up and down in the vibration damping cavity 6 and rub with the vibration damping cavity 6, so that the instantaneous impact vibration peak received by the cap body 1 is absorbed and converted into heat energy, and the impact force transmitted to the pile body is further reduced.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model. All equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (7)

1. The utility model provides a precast pile cap of solid square pile, includes the cap body (1) that is formed by concrete placement, its characterized in that: the novel pile is characterized in that a connecting base plate (2) is pre-buried on the inner side wall of the cap body (1), bolt holes (3) are formed in the side wall of the cap body (1) and the connecting base plate (2), positioning bolts (4) are arranged in the bolt holes (3) in a penetrating mode and used for being connected with a pile body, and a plurality of layers of steel wire meshes (9) are arranged in concrete on the upper side of the cap body (1); the novel vibration damping cap is characterized in that a vibration damping cavity (6) is formed in the cap body (1), vibration damping columns (7) are arranged in the vibration damping cavity (6), springs (8) are arranged at two ends of the vibration damping columns (7), and the outer side wall of the vibration damping columns (7) is of a rough structure and can be rubbed with the inner wall of the vibration damping cavity (6).

2. A precast pile cap for a solid square pile according to claim 1, wherein: and a flange (5) is arranged on one side of the connecting backing plate (2) facing the pile cap and is used for contacting with the top of the pile body.

3. A precast pile cap for a solid square pile according to claim 2, wherein: the bottom of the vibration reduction cavity (6) is connected with a turned edge (5) of the connecting base plate (2), and a connecting structure is arranged between the side wall of the vibration reduction cavity (6) and the outer shell of the metal cap body (1).

4. A precast pile cap for a solid square pile according to claim 1, wherein: the top of the cap body (1) is provided with a buffer layer (11) in an adhesive mode.

5. A precast pile cap for a solid square pile according to claim 1, wherein: a wavy buffer steel wire (10) is arranged between two layers of adjacent steel wire meshes (9), and the buffer steel wire (10) is in binding connection with the adjacent steel wire meshes (9).

6. The precast pile cap of a solid square pile according to claim 5, wherein: buffer steel wires (10) which are adjacent up and down are arranged in a crisscross way.

7. A precast pile cap for a solid square pile according to claim 1, wherein: the thickness of the cap body (1) is more than or equal to 300mm.