CN111305252A

CN111305252A - Pile foundation equipment capable of coping with variable load of foundation

Info

Publication number: CN111305252A
Application number: CN202010137656.3A
Authority: CN
Inventors: 刘国平; 张嘉怡; 金宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-06-19

Abstract

The invention relates to the technical field of pile foundations and discloses pile foundation equipment capable of coping with variable loads of a foundation. Tighten up the stay cord through artificial rotation pivot, so volute spiral spring is triggered and is released the load board of symmetry, and meanwhile, the telescopic ball is pushed out the load board surface from the spout, increases the area of contact of load board and soil, and in the drilling rod downstream, when the drilling rod met the rock layer, the resistance grow of drilling rod lower extreme, so also constantly stretch out along with the drilling rod goes deep into the inside stabilizer blade of rock layer to the effect of the resistance when having reached increase pile foundation transverse load and having reduced the pile.

Description

Pile foundation equipment capable of coping with variable load of foundation

Technical Field

The invention relates to the technical field of pile foundations, in particular to pile foundation equipment capable of coping with variable loads of a foundation.

Background

The pile foundation is composed of foundation piles and bearing platforms connected to the pile tops, the contact degree of the bottom surfaces of the bearing platforms and soil bodies is divided into low bearing platform pile foundations and high bearing platform pile foundations, the building pile foundations are usually low bearing platform pile foundations, and when the pile foundations extend into a bearing layer in hard plastic cohesive soil, medium density sand or rock, the pile foundations can have high vertical single-pile bearing capacity or pile group bearing capacity and can sufficiently bear all vertical loads of a high-rise building.

However, with frequent crustal movement and increase of earthquake amplitude and frequency in recent years, the existing pile foundation can only bear vertical load, so that the existing pile foundation cannot resist the transverse load generated in the earthquake, and a high-rise building cannot survive in the earthquake; in addition, when the foundation is piled, the composition of the foundation needs to be detected, and the existing detection equipment can destroy the compactness of the interior of the foundation after detection, and further influence the insertion work of the pile foundation, so that the pile foundation equipment capable of coping with the variable load of the foundation is produced.

Disclosure of Invention

In order to achieve the purposes of increasing the transverse load of the pile foundation, reducing the resistance during piling and detecting the components of the pile without damaging the foundation, the invention provides the following technical scheme: the utility model provides a can deal with pile foundation equipment of ground variable load, includes the pile body, the inside swing joint of pile body has the pivot, and the surface of pivot is connected with the drilling rod, and the inside swing joint of drilling rod has the wrapping post, and the bottom swing joint of wrapping post has the spring beam, the equal swing joint in both sides of wrapping post has the load board, and the spout has been seted up to the inside lateral wall of load board, and the sliding surface of spout is connected with flexible ball, and the sliding surface of flexible ball has the line pole of depositing, and the sliding surface of depositing the line pole has the push rod.

The invention has the beneficial effects that:

1. tighten up the stay cord through artificial rotation pivot, so volute spiral spring is triggered and is released the load board of symmetry, and meanwhile, the telescopic ball is pushed out the load board surface from the spout, increases the area of contact of load board and soil, and in the drilling rod downstream, when the drilling rod met the rock layer, the resistance grow of drilling rod lower extreme, so also constantly stretch out along with the drilling rod goes deep into the inside stabilizer blade of rock layer to the effect of the resistance when having reached increase pile foundation transverse load and having reduced the pile.

2. Go deep into the ground through the drilling rod, when the drilling rod was for reaching suitable position, and the rock layer was also partly flowed into from the gap department of stabilizer blade and drilling rod by the powder that the drilling rod was smashed, can take soil and rock powder back partly from the stay cord surface to reached the pile and carried out the effect that the composition detected to it under the condition of not destroying the ground.

Preferably, the bottom of the spring rod is movably connected with an engaging shaft, and the engaging shaft plays a role in converting the longitudinal movement of the spring rod into the transverse movement.

Preferably, the surface of the meshing shaft is movably connected with a screw, and the screw plays a role in amplifying the rotating force of the meshing shaft, so that the support legs are conveniently fixed in the rock layer.

Preferably, both ends of the screw rod are fixedly connected with support legs, the surfaces of the support legs are fixedly connected with damping sleeves, and friction force is large when the damping sleeves are in contact with rocks.

Preferably, the interior swing joint of wrapping post has the spiral spring, and the both ends and the load board fixed connection of spiral spring, and the elasticity that is triggered when the spiral spring is greater than the resistance of load board and soil.

Preferably, the surface of the winding post is movably connected with a pull rope, and the pull rope not only plays a role in transmitting force, but also plays a role in detecting foundation components.

Preferably, the surface of the telescopic ball is provided with burrs, and the burrs play a role in enlarging the contact area between the telescopic ball and the soil.

Preferably, the number of the drill rods is three, and the transverse load force of the pile body is increased based on the force superposition effect.

Preferably, the pull rope on the surface of the winding post is divided into two parts, one part is thinner, the other part is thicker, and the thicker part is movably connected with the rotating shaft.

Drawings

FIG. 1 is a front cross-sectional view of a pile structure according to the present invention;

FIG. 2 is a schematic view of a rotating shaft structure according to the present invention;

FIG. 3 is a schematic view of the spring rod structure of the present invention;

FIG. 4 is a schematic view of a load plate structure according to the present invention;

FIG. 5 is an enlarged view of a portion A of FIG. 4;

FIG. 6 is a schematic view of the pull cord of the present invention;

fig. 7 is a schematic view of the structure of the winding post of the present invention.

In the figure: 1-pile body, 2-rotating shaft, 3-drill rod, 4-winding post, 5-spring rod, 6-load plate, 7-chute, 8-telescopic ball, 9-wire storage rod, 10-push rod, 11-meshing shaft, 12-screw rod, 13-support leg, 14-volute spiral spring and 15-pull rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a pile foundation apparatus capable of coping with variable load of a foundation includes a pile body 1, a rotating shaft 2 is movably connected inside the pile body 1, drill rods 3 are connected to the surface of the rotating shaft 2, the number of the drill rods 3 is three, and the superimposed stress refers to a resultant stress formed by being influenced by more than two excavation working faces, so that the transverse load force of the pile body 1 is increased, the pile body 1 is placed on the surface of the foundation to be piled, and then a driving part is started to move the pile body 1 downward, so that the drill rods 3 are contacted with the foundation and inserted into the foundation under the action of pressure, and the drill rods 3 penetrate through soil and rocks.

The inside swing joint of drilling rod 3 has wrapping post 4, the stay cord 15 on 4 surfaces of wrapping post is divided into two parts, and partly thin partly is thicker, thick part and 2 swing joint of pivot, thin partly is connected with push rod 10, and owing to set up the angle problem, can push rod 10 when stay cord 15 is tightened up, the surface swing joint of wrapping post 4 has stay cord 15, stay cord 15 not only plays the effect of transmission power, also play the effect that detects the ground composition, the inside swing joint of wrapping post 4 has spiral spring 14, spiral spring 14's both ends and load board 6 fixed connection, and the elasticity that is triggered when spiral spring 14 is greater than the resistance of load board 6 with soil.

The bottom of the winding post 4 is movably connected with a spring rod 5, the bottom of the spring rod 5 is movably connected with a meshing shaft 11, the meshing shaft 11 plays a role in converting longitudinal movement of the spring rod 5 into transverse movement, the surface of the meshing shaft 11 is movably connected with a screw rod 12, the screw rod 12 plays a role in amplifying rotation force of the meshing shaft 11, the support legs 13 are conveniently fixed in a rock layer, two ends of the screw rod 12 are fixedly connected with support legs 13, the surfaces of the support legs 13 are fixedly connected with damping sleeves, friction force is large when the damping sleeves are in contact with rocks, two sides of the winding post 4 are movably connected with load plates 6, the inner side walls of the load plates 6 are provided with sliding grooves 7, the surfaces of the sliding grooves 7 are slidably connected with telescopic balls 8, burrs are arranged on the surfaces of the telescopic balls 8, the burrs play a role in expanding contact area of the telescopic balls 8 and soil, the surfaces of the telescopic balls 8 are movably connected with a wire storage rod, the surface of the wire storage rod 9 is movably connected with a push rod 10.

In use, after the drill rod 3 is inserted into the soil at a proper position, the pull rope 15 is tightened by manually rotating the rotating shaft 2, so that the pull rope 15 pulls the winding post 4 to rotate, the spiral spring 14 is triggered to push the symmetrical load plates 6 out, since the soil at this time is just pushed by the drill rod 3 and becomes loose, the load plate 6 is pushed out without much force, at the same time, the movement direction of the pull rope 15 is changed by being tightened, so that the push rod 10 is moved in a direction away from the winding post 4, and the telescopic ball 8 is pushed out of the surface of the load plate 6 from the chute 7, thereby increasing the contact area between the load plate 6 and the soil, and at the same time as the drill rod 3 moves downward, when the drill rod 3 meets the rock layer, the resistance at the lower end of the drill rod 3 becomes large, so that the spring rod 5 inside the drill rod is extruded, and the engaging shaft 11 is pushed to rotate by the deformation of the spring rod 5, so that the supporting feet 13 are continuously extended along with the penetration of the drill rod 3 into the rock layer. By drilling the drill rod 3 deeply into the foundation, when the drill rod 3 does not reach a proper position, soil can enter the surface of the loading plate 6 from the sliding groove 7, and powder crushed by the drill rod 3 in a rock stratum can flow into a part from a gap between the supporting leg 13 and the drill rod 3, and when the rotating shaft 2 is manually rotated to shrink, the soil and the rock powder can be brought back to a part from the surface of the pull rope 15.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A pile foundation equipment capable of dealing with foundation variable load comprises a pile body (1), and is characterized in that: a rotating shaft (2) is movably connected inside the pile body (1), a drill rod (3) is connected to the surface of the rotating shaft (2), a wrapping post (4) is movably connected inside the drill rod (3), and a spring rod (5) is movably connected to the bottom of the wrapping post (4);

the equal swing joint in both sides of wrapping post (4) has load board (6), and spout (7) have been seted up to the inside lateral wall of load board (6), and the surperficial sliding connection of spout (7) has flexible ball (8), and the surperficial swing joint of flexible ball (8) has and deposits line pole (9), and the surperficial swing joint who deposits line pole (9) has push rod (10).

2. The pile foundation equipment for coping with the variable load of the foundation according to claim 1, wherein: the bottom of the spring rod (5) is movably connected with a meshing shaft (11).

3. The pile foundation equipment for coping with the variable load of the foundation according to claim 2, wherein: the surface of the meshing shaft (11) is movably connected with a screw rod (12).

4. The pile foundation equipment for coping with the variable load of the foundation according to claim 1, wherein: both ends of the screw rod (12) are fixedly connected with support legs (13).

5. The pile foundation equipment for coping with the variable load of the foundation according to claim 1, wherein: the interior of the winding post (4) is movably connected with a volute spiral spring (14).

6. The pile foundation equipment for coping with the variable load of the foundation according to claim 1, wherein: the surface of the winding post (4) is movably connected with a pull rope (15).

7. The pile foundation equipment for coping with the variable load of the foundation according to claim 1, wherein: burrs are arranged on the surface of the telescopic ball (8).

8. The pile foundation equipment for coping with the variable load of the foundation according to claim 1, wherein: the number of the drill rods (3) is three.