CN217231913U

CN217231913U - Steel structure pile foundation

Info

Publication number: CN217231913U
Application number: CN202220388397.6U
Authority: CN
Inventors: 郑海侨; 马双; 陈小龙
Original assignee: Shenzhen Liansheng Foundation Construction Engineering Co ltd
Current assignee: Shenzhen Liansheng Foundation Construction Engineering Co ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-08-19
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a steel structure pile foundation, which belongs to the technical field of construction and comprises a pile body, a pile platform and a plurality of pile heads; one end of the pile body is welded with the pile platform, a transition block is arranged in the pile body, a plurality of second transition holes are formed in the pile platform, and the pile head penetrates through the second transition holes to be connected with the transition block. This application can reach the cracked effect of reduction pile head.

Description

Steel structure pile foundation

Technical Field

The utility model belongs to the technical field of the building technique and specifically relates to a steel constructs pile foundation.

Background

The pile foundation is a foundation treated in a piling mode, and can transmit load to a soil layer at a deep underground position so as to meet the requirements of bearing capacity and settlement of a building.

The existing pile foundation consists of foundation piles and bearing platforms. The foundation pile comprises a cylindrical pile body and a conical pile head, the pile head is located at one end of the pile body and fixedly connected with the pile body, and the foundation pile is used for penetrating through a soft high-compressibility soil layer and transmitting the load borne by the foundation pile to a harder, more compact or less-compressibility foundation bearing layer. The bearing platform is fixedly connected to one end, far away from the pile head, of the foundation pile and used for bearing the load of the upper column and transmitting the load to the foundation pile.

In view of the above-described related art, the inventors consider that at least the following drawbacks exist: when piling in building construction, the pile head is mostly punched from top to bottom, which easily causes the condition of pile head fracture.

SUMMERY OF THE UTILITY MODEL

In order to improve the easy cracked problem of pile head when piling, the utility model provides a steel constructs pile foundation.

The utility model provides a pair of steel constructs stake basis adopts following technical scheme:

a steel structure pile foundation comprises a pile body, a pile platform and a plurality of pile heads; one end of the pile body is welded with the pile platform, a transition block is arranged in the pile body, a plurality of second transition holes are formed in the pile platform, and the pile head penetrates through the second transition holes to be connected with the transition block.

By adopting the technical scheme, when the pile is driven, the pile body vertically extends into the soil layer, and the pile body, the transition block and the pile heads are pressed towards the soil layer. The pressure of soil to single pile head is dispersed to a plurality of pile heads, reduces the cracked probability of pile head, and a plurality of pile heads help the pile body to keep the direction perpendicular to the ground.

Optionally, it is a plurality of all the cover is equipped with the spring on the pile head, the spring is located between transition piece and the pile platform, spring one end is fixed on the pile platform.

By adopting the technical scheme, when the transition block drives the pile head to move downwards, the spring is extruded, so that the impact of the ground to the pile head is buffered, and the pile head is protected.

Optionally, a plurality of the pile heads are evenly spaced around the pile body axis.

Through adopting above-mentioned technical scheme, a plurality of pile heads are evenly arranged around the pile body axis interval and are favorable to the balance of whole foundation pile for the pile body sinks along the direction on perpendicular to ground all the time.

Optionally, the pile head includes pile head and lower pile head, go up the pile head and be solid cylinder, the pile head is solid cone down, go up pile head cross section diameter with pile head bottom surface diameter is unanimous down, go up the pile head with pile head fixed connection down.

By adopting the technical scheme, the upper pile head is connected with the transition block, and the lower pile head is used for breaking the ground.

Optionally, the transition block is a solid cylinder, and the outer wall of the transition block is abutted against the inner wall of the pile body; the bottom surface of the transition block close to the pile platform is provided with a plurality of grooves, and the upper pile head is in the grooves and is in threaded connection with the transition block.

Through adopting above-mentioned technical scheme, go up pile head and transition piece threaded connection in the recess, the transition piece drives a plurality of pile heads downstream together, if pile head fracture down, then can in time dismantle the change pile head.

Optionally, the pile platform is a solid circular table, and the diameter of the cross section of the pile platform close to the pile body is consistent with the diameter of the cross section of the pile body; the cross section of the second transition hole is circular, and the outer wall of the upper pile head is abutted to the wall of the second transition hole.

Through adopting above-mentioned technical scheme, go up pile head outer wall and second transition hole pore wall butt for the pile head direction is along the direction on perpendicular to ground all the time, avoids the pile head crooked. When the pile body drives the pile platform to press down, soil is extruded upwards along the lower pile head and the side wall of the pile platform.

Optionally, one end, away from the pile platform, of the pile body is welded with a pile cover, a T-shaped pressing block is arranged on the pile cover, a first transition hole is formed in the pile cover, and the vertical section of the T-shaped pressing block penetrates through the first transition hole and is matched with the pile cover.

Through adopting above-mentioned technical scheme, during the pile, T type briquetting is used for accepting the downward hammering power of pile hammer, and T type briquetting horizontal part collides with the pile cover, and the vertical section of T type briquetting collides with the transition piece, and pile cover and transition piece transmit power respectively for pile body and a plurality of pile head downstream.

Optionally, the pile body is a hollow cylinder.

By adopting the technical scheme, after the pile is driven, the T-shaped pressing block is taken out, the pile cover is cut, the reinforced concrete is poured into the pile body, and the supporting force of the pile body is improved.

To sum up, the utility model discloses following beneficial effect has:

1. when piling, the pile body vertically extends into the soil layer, and the pile body, the transition block and the pile heads are pressed towards the soil layer. The pressure of soil to individual pile head can be dispersed to a plurality of pile heads, the cracked probability of pile head is reduced, and a plurality of pile heads help the pile body to keep the direction perpendicular to the ground.

2. When the transition block drives the pile head to move downwards, the spring is extruded, so that the impact of the ground to the pile head is buffered, and the pile head is protected.

3. Go up pile head outer wall and second transition hole pore wall butt for the pile head direction is along the direction on perpendicular to ground all the time, avoids the pile head crooked. When the pile body drives the pile platform to press downwards, soil is extruded upwards along the lower pile head and the side wall of the pile platform.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is intended to show a schematic bottom view of the pile head.

Description of the reference numerals:

1. a T-shaped briquette; 2. pile cover; 21. a first transition hole; 3. a pile body; 4. a transition block; 41. a groove; 5. pile head; 51. pile head mounting; 52. pile head descending; 6. pile platform; 61. a second transition hole; 7. a spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a steel constructs pile foundation, as shown in fig. 1, including pile cover 2,

pile body

3, 3 inside transition pieces 4 of pile body, a plurality of pile head 5 and

pile platform

6, 3 one end of pile body and pile cover 2 welding, the other end and pile platform 6 welding have seted up a plurality of second transition holes 61 on the pile platform 6, and a plurality of pile heads 5 pass a plurality of second transition holes 61 and are connected with transition pieces 4.

As shown in fig. 1, the pile cover 2 is a flat pile cover 2 with a circular cross section, a first transition hole 21 with a circular cross section is formed in the pile cover 2, and the axis of the first transition hole 21 and the axis of the pile cover 2 coincide with the axis of the pile body 3. A T-shaped pressing block 1 is arranged above the pile cover 2, the vertical section of the T-shaped pressing block 1 penetrates through the first transition hole 21 to be matched with the pile cover 2, the diameter of the cross section of the pile cover 2 is larger than that of the cross section of the pile body 3, and the axis of the T-shaped pressing block 1 coincides with that of the pile body 3.

When piling, the pile cover 2 is positioned on the ground, the T-shaped pressing block 1 is used for bearing the hammering force of the piling hammer, the horizontal part of the T-shaped pressing block 1 collides with the pile cover 2, the force is transmitted to the pile body 3, and the pile body 3 moves downwards.

As shown in fig. 1, the pile body 3 is a hollow cylinder with the same diameter at the upper part and the lower part, and is used for bearing the load of a building above the ground. After the pile is driven, the T-shaped pressing block 1 is taken out, the pile cover 2 is cut, reinforced concrete is poured into the pile body 3, and the supporting strength of the pile body 3 is improved.

As shown in fig. 1, the transition block 4 is a solid cylinder, the outer wall of the transition block 4 is abutted against the inner wall of the pile body 3, and the axis of the transition block 4 is coincident with the axis of the pile body 3.

During piling, the hammering power of pile hammer is received to T type briquetting 1 downstream, and the vertical section of T type briquetting 1 collides with

transition piece

4, and 1 horizontal part of T type briquetting collides with pile cover 2 simultaneously, and pile cover 2 and transition piece 4 transmit power respectively for pile body 3 and a plurality of pile head 5 downstream.

As shown in fig. 1, the transition block 4 is connected with three pile heads 5, each pile head 5 comprises an upper pile head 51 and a lower pile head 52, the upper pile head 51 is a solid cylinder, the lower pile head 52 is a solid cone, the diameter of the bottom surface of the lower pile head 52 is consistent with the diameter of the cross section of the upper pile head 51, the upper pile head 51 is fixedly connected with the lower pile head 52, and the tip of the lower pile head 52 faces the soil layer. Three grooves 41 with circular cross sections are formed in the bottom surface, away from the pile cover 2, of the transition block 4, the three grooves 41 are distributed in an equilateral triangle shape around the axis of the pile body 3, and the upper pile head 51 is in threaded connection with the transition block 4 in the grooves 41.

In the piling process, the upper pile head 51 is in threaded connection with the transition block 4, and if the lower pile head 52 is broken, the pile head 5 can be detached and replaced in time. Three pile head 5 is around 3 axis evenly distributed of pile body, can balance each other for the direction of sinking of pile body 3 is perpendicular with ground all the time, and at the pressure of broken ground process dispersion earth to single pile head 5, reduces pile head 5 and takes place the probability of splitting.

As shown in fig. 1, the pile platform 6 is a solid circular truncated cone, and the diameter of the cross section of the pile platform 6 close to the pile body 3 is consistent with the outer diameter of the cross section of the pile body 3. Three second transition holes 61 with circular cross sections are formed in the pile platform 6, the positions of the three second transition holes 61 and the grooves 41 of the transition block 4 are in one-to-one correspondence in the vertical direction, the cross section circle of the pile platform 6 far away from the pile body 3 is internally tangent to the cross section circle of the three second transition holes 61, and the upper pile head 51 is connected to the transition block 4 through the second transition holes 61 in a threaded mode. All the three upper pile heads 51 are sleeved with springs 7, the springs 7 are located between the transition block 4 and the pile platform 6, and one ends of the springs 7 are fixedly connected with the pile platform 6.

During piling, transition piece 4 drives pile head 5 and pushes down, and transition piece 4 pushes down spring 7 when a certain distance, and spring 7 buffer soil layer is to the impulsive force on pile head 52 down, and second transition hole 61 can guarantee that pile head 5 is along the direction on perpendicular to ground all the time, avoids pile head 5 crooked. When the pile body 3 drives the pile platform 6 to press down, the soil is extruded upwards along the lower pile head 52 and the side wall of the pile platform 6.

In this embodiment, when piling, the pile cover 2 is located above the ground, the T-shaped press block 1 passes through the first transition hole 21 to be matched with the pile cover 2, and the pile body 3, the plurality of pile heads 5 and the pile platform 6 extend into the soil layer along the direction vertical to the ground. The pile hammer hammers T-shaped pressing blocks 1, the horizontal parts of the T-shaped pressing blocks 1 collide with pile covers 2, the vertical sections of the T-shaped pressing blocks 1 collide with transition blocks 4, the pile covers 2 drive pile bodies 3 and pile platforms 6, the transition blocks 4 drive a plurality of pile heads 5 to move downwards, the transition blocks 4 press downwards to extrude springs 7, the springs 7 buffer the impulsive force of soil layers on lower pile heads 52, and soil slides upwards along the side walls of the lower pile heads 52 and the pile platforms 6. And after the piling is finished, taking out the T-shaped pressing block 1, cutting off the pile cover 2, and pouring reinforced concrete into the pile body 3. Through the arrangement of the spring 7 and the three pile heads 5, the sinking directions of the pile bodies 3 and the pile heads 5 are always vertical to the ground, and the probability of breakage of the pile heads 5 is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a steel constructs pile foundation, includes pile body (3), its characterized in that: the pile structure also comprises a pile platform (6) and a plurality of pile heads (5); pile body (3) one end with pile platform (6) welding, be provided with transition piece (4) in pile body (3), a plurality of second transition holes (61) have been seted up on pile platform (6), pile head (5) pass second transition hole (61) with transition piece (4) are connected.

2. The steel structure pile foundation of claim 1, characterized in that: it is a plurality of all the cover is equipped with spring (7) on pile head (5), spring (7) are located between transition piece (4) and pile platform (6), spring (7) one end is fixed on pile platform (6).

3. A steel structure pile foundation according to claim 2, characterized in that: the pile heads (5) are evenly arranged around the axis of the pile body (3) at intervals.

4. A steel structure pile foundation according to claim 3, characterized in that: pile head (5) are including last pile head (51) and lower pile head (52), it is solid cylinder to go up pile head (51), pile head (52) are solid cone down, go up pile head (51) cross section diameter with pile head (52) bottom surface diameter is unanimous down, go up pile head (51) with pile head (52) fixed connection down.

5. The steel structure pile foundation of claim 4, characterized in that: the transition block (4) is a solid cylinder, and the outer wall of the transition block (4) is abutted against the inner wall of the pile body (3); the bottom surface of the transition block (4) close to the pile platform (6) is provided with a plurality of grooves (41) with circular cross sections, and the upper pile head (51) is arranged in the grooves (41) and is in threaded connection with the transition block (4).

6. The steel structure pile foundation of claim 4, characterized in that: the pile platform (6) is a solid round table, and the diameter of the cross section of the pile platform (6) close to the pile body (3) is consistent with that of the cross section of the pile body (3); the cross section of the second transition hole (61) is circular, and the outer wall of the upper pile head (51) is abutted to the wall of the second transition hole (61).

7. The steel structure pile foundation of claim 1, characterized in that: pile body (3) keep away from pile platform (6) one end welding and have stake lid (2), be provided with T type briquetting (1) on stake lid (2), first transition hole (21) have been seted up on stake lid (2), the vertical section of T type briquetting (1) is passed first transition hole (21) with stake lid (2) cooperation.

8. The steel structure pile foundation of claim 1, characterized in that: the pile body (3) is a hollow cylinder.