CN115977071A

CN115977071A - High-strength building foundation pile construction method

Info

Publication number: CN115977071A
Application number: CN202211677501.4A
Authority: CN
Inventors: 翟惠兵; 余钟明; 李世鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-18

Abstract

The invention belongs to the technical field of constructional engineering, in particular to a construction method of a high-strength building foundation pile, which comprises the steps of manufacturing a reinforcement cage, putting down a guide pipe, putting down the reinforcement cage, pouring concrete, lifting the guide pipe and positioning a bearing component; according to the invention, the grading experiment of concrete is carried out according to the designed strength requirement, the maximum particle size of aggregate in the concrete is determined, then a steel reinforcement framework is manufactured according to the maximum particle size data of the aggregate, then the bearing parts are sequentially installed in the steel reinforcement framework, then the concrete is poured into the foundation pile hole through the guide pipe, and as the bearing parts are arranged in the steel reinforcement framework, the large aggregate with higher specific gravity can be supported by the bearing parts when moving downwards in the pouring process and the vibrating process, so that the large aggregate on the upper part is prevented from moving downwards, the problem of low strength of the upper part of the pile body can be avoided, and the integral bearing capacity of the foundation pile can be improved.

Description

High-strength building foundation pile construction method

Technical Field

The invention belongs to the technical field of building engineering, and particularly relates to a construction method of a high-strength building foundation pile.

Background

The cast-in-place bored pile is a pile formed by forming a pile hole in foundation soil through mechanical drilling, steel pipe soil extrusion or manual excavation and the like in an engineering site, placing a steel reinforcement cage and cast-in-place concrete in the pile, and according to different hole forming methods, the cast-in-place pile can be divided into a immersed tube cast-in-place pile, a cast-in-place bored pile, a hole-in-place bored pile and the like.

When the cast-in-situ bored pile bears vertical load pressure, the pressure on the position close to the pile top of the load is the largest, and the pressure borne by the lower part is relatively smaller, but the pile forming process of the cast-in-situ bored pile is opposite to the actual stress condition, when the concrete is cast, if improper operation occurs, the guide pipe is inserted too deep into the concrete, or the casting speed is higher, more aggregate is easily deposited in the deep part of the hole body, and in addition, the vibrating process and the specific gravity of the aggregate are higher, so that large aggregate in the concrete sinks, further the strength of the concrete at the upper part of the cast-in-situ bored pile is lower, and because more aggregate is in the concrete at the middle and lower sections, the strength of the pile body at the lower part is higher, further the strength of the pile body is uneven, and further the bearing capacity of the pile body is reduced.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a high-strength building foundation pile construction method. The invention is mainly used for solving the problem that the existing cast-in-situ bored pile causes the sinking of aggregate when the construction operation is improper, and further causes the low top strength of the pile foundation.

The technical scheme adopted by the invention for solving the technical problems is as follows: a construction method of a high-strength building foundation pile comprises the following steps;

s1: blending concrete according to the design requirement, completing the selection of the grading of the concrete, and carrying out the solidification expansion experiment of the concrete;

s2: leveling and reinforcing the orifice, simultaneously manufacturing a reinforcement cage framework according to concrete grading data, assembling a perfusion conduit, and then performing a tightness experiment on the conduit until the conduit is qualified;

s3: installing a guide support, installing a guide sleeve of the perfusion catheter, and measuring and adjusting the guide sleeve to ensure that the axis of the guide sleeve is superposed with the axis of the foundation pile hole;

s4: after the positioning and installation of the guide pipe guide sleeve in the step S2 are finished, putting down the pouring guide pipe until the distance between the bottom end of the guide pipe and the bottom of the hole is 2 times of the maximum aggregate particle size in the poured concrete, and then fixing the pouring guide pipe;

s5: after the guide pipe is lowered, a reinforcement cage is lowered, the position of the reinforcement cage is adjusted to enable the axis of the reinforcement cage to be coincident with the axis of the guide pipe, and then a reinforcement cage fixing support leg and an anti-floating support are installed;

s6: after the steps S1-S4 are completed, continuously pouring concrete into the interior of the hole of the foundation pit through the pouring guide pipe, vibrating through equipment, gradually pulling out the pouring guide pipe upwards along with the rising of the top surface of the poured concrete, driving the supporting part to be in place when the guide pipe is lifted upwards, and keeping the bottom end of the guide pipe to be positioned at the depth of less than 2 meters of the top surface of the poured concrete in the pouring process;

s7: continuously pouring concrete until the top surface of the concrete exceeds the top surface of the foundation pile hole by more than 1 meter;

s8: after the concrete is kept, the pile head part of the over-poured pile at the upper part of the foundation pile hole is chiseled.

When the cast-in-situ bored pile works, when the cast-in-situ bored pile bears vertical load pressure, the pressure on the position close to the pile top of the load is the largest, and the pressure borne by the lower part is relatively smaller, but the pile forming process of the cast-in-situ bored pile is opposite to the actual stress condition, when concrete is poured, if improper operation causes the guide pipe to be inserted too deep into the concrete or the pouring speed is higher, more aggregates are easily deposited at the deep part of the hole body, and the vibrating process and the specific gravity of the aggregates are higher, so that large aggregates in the concrete sink, further the strength of the concrete at the upper part of the cast-in-situ bored pile is lower, and the strength of the pile body at the lower part is higher due to more aggregates in the concrete at the middle and lower sections, so that the strength of the pile body is uneven, and further the bearing capacity of the pile body is reduced; therefore, in the scheme, when the construction of the cast-in-situ bored pile is carried out, the concrete grading experiment is firstly carried out according to the designed strength requirement, the actual grading of the concrete is further determined, the maximum particle size of aggregate in the concrete is further determined, then the steel reinforcement framework is manufactured according to the maximum particle size data of the aggregate, the gap of the bearing part in the steel reinforcement framework is determined according to the particle size of the large aggregate in the concrete, then the bearing part is sequentially installed in the steel reinforcement framework, then the concrete is poured into the pile hole through the guide pipe, and as the bearing part is arranged in the steel reinforcement framework, the large aggregate with high specific gravity can be supported by the bearing part when moving downwards in the pouring process and the vibrating process, so that the large aggregate on the upper part is prevented from moving downwards, the large aggregate can be uniformly distributed in the vertical direction of the pile body, the problem that the strength of the upper part of the pile body is low can be avoided, and the whole bearing capacity of the foundation pile can be improved; meanwhile, the bearing component is high in strength, so that the bearing component is added in the foundation pile, the overall strength of the pile body is increased, and the bearing capacity of the pile body is increased.

Preferably, the reinforcement cage comprises a main reinforcement, a spiral auxiliary reinforcement, a bearing plate, a fixed end, a self-locking part and a triggering part; the main ribs are distributed along the circumference; the outer part of the main rib is provided with a spiral auxiliary rib; the spiral auxiliary ribs are distributed in a spiral ascending shape; the spiral auxiliary ribs are fixedly connected with the main ribs; the inner sides of the spiral auxiliary ribs are uniformly provided with the fixed end heads at intervals; the fixed end is fixedly connected with the spiral auxiliary rib; one side of the fixed end is provided with the bearing plate; the connecting frame arranged at the end part of the bearing plate is rotationally connected with the fixed end; the self-locking part is arranged in the fixed end socket; the self-locking component is used for locking the rotation of the bearing plate; the bottom end of the perfusion catheter is provided with a trigger component; the trigger component is used for driving the bearing plate to rotate to a bearing position.

When the pile foundation pile is in operation, the pile foundation pile is poured upwards from the bottom of a pile foundation hole in the pouring process of drilling and pouring, and if too many bearing components are added in the steel bars, the upward floating force on the steel bar cage is increased, the steel bar cage is floated upwards, the strength of the formed pile is uneven, and the bearing capacity of the formed pile is reduced; then at the in-process of pouring, when the bearing board of lower part was walked over to the concrete on upper strata, when the pipe lifted, drive and trigger the part rebound, along with triggering the part rebound, and then can drive the bearing board and rotate, and then make the bearing board can rotate the position of bearing, when the bearing board rotated the position of bearing, the auto-lock part between bearing board and the fixed end started, and then make the rotational position of bearing board locked, and then make the bearing board can keep the stability in the position of bearing, and then make the bearing board have bearing capacity, and then guarantee that the bearing part can hold big aggregate, and then avoid the inhomogeneous condition of intensity to appear in the foundation pile.

Preferably, the self-locking part comprises a sealing ring, a stop block and a first spring; an annular groove is formed in the inner side of the fixed end; the sealing ring is clamped in the annular groove; grooves are symmetrically formed in the connecting frame of the supporting plate; a first spring is arranged in the groove; one end of the first spring is fixedly connected with the connecting frame; the other end of the first spring is provided with the stop block; the stop block is fixedly connected with the other end of the first spring; the stop block is connected with the groove in a sliding manner; the inner side of the fixed end is symmetrically provided with clamping grooves; the clamping groove is matched with the stop block.

When the bearing plate is in work, the bearing plate is driven by the trigger component to rotate, the check block and the first spring are further rotated, one end of the check block slides on the inner side of the fixed end socket along with the rotation of the bearing plate, the clamping groove is formed in the fixed end socket, and the check block moves towards the direction of the inner part of the clamping groove under the elastic action of the first spring when the check block rotates to the position of the clamping groove, so that one end of the check block extends into the clamping groove, the other end of the check block is located in the groove of the connecting frame on the bearing plate, the degree of freedom of the connecting frame of the bearing plate and the rotating direction of the fixed end socket is limited, the bearing plate can realize self-locking after rotating in place, and the bearing plate can realize a bearing effect; simultaneously because the bearing board is in the concrete in the motion process, and then be provided with the sealing washer between the link at the bearing board and the fixed end in this scheme, and then make when the steel reinforcement cage is located the concrete, make to keep sealed between the link of bearing board and the fixed end, and then avoid the grit in the concrete to enter into inside both clearances, and then can guarantee the rotation that the bearing board can be smooth and easy, and then the rotation that can be convenient for the bearing board targets in place, and then make the bearing board have the bearing capacity, and then guarantee that the bearing part can hold big aggregate, and then avoid the inhomogeneous condition of intensity to appear in the foundation pile.

Preferably, the trigger component comprises a telescopic piece, a butt strap, a second spring and a mounting seat; the bottom end of the perfusion catheter is provided with the mounting seat; the mounting seat is provided with sliding chutes at equal intervals along the circumferential direction; the second spring is arranged in the sliding groove; the second spring is fixedly connected with one end of the second spring and the mounting seat; the other end of the second spring is provided with the telescopic piece; the telescopic piece is fixedly connected with the other end of the second spring; the telescopic piece is connected with the side wall of the sliding chute in a sliding manner; the butt strap is arranged on one side of the bearing plate; one end of the butt strap is fixedly connected with the bearing plate; the access board is matched with the telescopic piece; the telescopic piece has the magnetic attraction characteristic.

During operation, through promoting the pipe, and then make the extensible member rebound, and then make the extensible member catch on the attachment strap, and then move up along with the continuation of pipe, and then make the extensible member drive the attachment strap and move, and then make the bearing board upwards overturn, and then make the bearing board rotate the position of bearing, and then realize the effect of bearing, simultaneously in the in-process pipe of pouring will go deep into the inside very long period of foundation pile hole, the in-process of pouring need with the extensible member with the attachment strap on, and then just can pull up the bearing board, and then just can will make the bearing board realize the purpose of bearing, and at the in-process of pouring because pipe length process, and then can lead to the pipe to appear warping, and then get back to the extensible member and appear the skew, and then can lead to make the extensible member can not make with the attachment strap overlap joint at the in-process that the pipe shifts, and then can lead to the bearing board can not be driven to the position of bearing, therefore in this scheme, through the mode that sets up the extensible member to magnetism, and then make near the extensible member be close to the attachment strap near the base pile can drive the even intensity of bearing, and then make the effect of bearing realize the support inside the even distribution of bearing, therefore make the support board, therefore make the base pile can drive, the supporting board, thereby make the supporting effect of the supporting can be realized the base pile.

Preferably, a cavity is formed in the mounting seat; the bottom of the sliding chute is provided with a connecting hole; the connecting hole is communicated with the cavity and the chute; the telescopic piece is sealed with the side wall of the sliding groove.

When the device works, the plurality of telescopic pieces are arranged in the circumferential direction of the mounting seat, so that when the guide pipe is inclined, the telescopic piece on one side is close to the reinforcement cage, and the telescopic piece is far away from the butt strap on the opposite side, so that the bearing plate on the opposite side is always not pulled up; therefore in this scheme, through the inside at the mount pad sets up the cavity, the medium is gone into in the cavity inside, and communicate a plurality of spouts through the connecting hole, and then when the pipe deflection appears, when the extensible member that leads to one side is close to the reinforcing bar hole of one side, make the extensible member of this side extruded to the inside of spout, and then make the medium of spout one side extruded inside the cavity, and then make the inside pressure of cavity increase, and then make the extensible member of other positions outwards stretch out, and then make the extensible member be close to the attachment strap of this side, and then guarantee that the extensible member and the attachment strap of this side can cooperate, and then guarantee that the extensible member can drive the upset with the bearing board, consequently can drive the bearing board to the position, and then can make the bearing board realize the effect of bearing, and then make the inside big aggregate of foundation pile can even distribution inside the foundation pile inside, and then make the inside intensity of foundation pile can even distribution, and then improve the bulk strength of foundation pile.

Preferably, one side of the supporting plate is provided with an elastic sheet; one end of the elastic piece is fixedly connected with the bearing plate, and the other end of the elastic piece is in lap joint with the spiral auxiliary rib.

When the self-locking device works, the bearing plate is rotatably arranged, and the self-locking component can be started after the bearing plate rotates, and the inside of a foundation pile hole is filled with mud before pouring, so that the bearing plate can be turned up in the process of lowering the reinforcement cage, the bearing plate can rotate to a bearing position before concrete pouring, the floating force of the reinforcement cage is larger in the process of pouring concrete at the later stage, and the reinforcement cage can float; therefore, in the scheme, the elastic piece is arranged on one side of the bearing plate, one end of the elastic piece is in lap joint with the spiral auxiliary rib before the steel reinforcement cage is placed, so that the movement of the bearing plate in the rotating direction can be limited in the process of placing the steel reinforcement cage, the bearing plate cannot rotate in advance in the placing process, and the steel reinforcement cage is prevented from floating upwards in the process of pouring concrete; meanwhile, in the process of pouring concrete, the concrete moves from bottom to top, and the uppermost concrete is the concrete for isolation and is used for isolating the slurry on the upper part from the concrete on the lower part, so that the water cement ratio of the concrete on the lower part is not changed, therefore, in the process of pouring, if the upper layer of concrete for isolation is filled with the bearing plate, the bearing plate can block the isolated concrete on the upper layer, so that the concrete on the upper layer is mixed with the concrete on the lower part, the water cement ratio of the concrete on the lower part is changed, and the pile forming quality is poor, and due to the elastic characteristic of the elastic sheet, the elastic sheet is deformed under the driving of the trigger part, and the bearing plate can turn over; therefore, the elastic sheet arranged in the scheme is filled with the upper-layer concrete, so that the bearing plate can be prevented from overturning, the bearing plate can be prevented from blocking the upper-layer isolated concrete, the quality of the lower-layer concrete can be guaranteed, and the quality of a pile can be guaranteed.

Preferably, the cross section of the supporting plate is of a diamond-shaped structure; the narrow edge of the bearing plate is arranged along the vertical direction.

In the working process, because the bearing plate needs to swing in concrete in the process of forming the pile, if the thickness of the bearing plate is thicker, the force required by the swing is larger in the swinging process, and the large aggregates in the swinging path can be shifted to other positions in the swinging process, so that a mortar belt is formed on the shifted path, and the overall strength of the foundation pile is reduced.

Preferably, an expanding agent is doped in the concrete poured by the foundation pile.

During operation, in the process of pile forming, the bearing plate needs to swing in concrete, so that a narrow gap can be formed at the rear part of the bearing plate in the movement direction, a gap can be formed in the foundation pile, and the strength of the foundation pile can be reduced; the durability is good, the expansion performance is stable, and the strength is continuously improved; ordinary concrete often leaks due to shrinkage cracking, reducing its functionality and durability. 8 to 12 percent of expanding agent is doped in the cement, and the cement can be mixed into shrinkage-compensating concrete, so that the crack resistance and the water resistance of a concrete structure are greatly improved; can cancel outer waterproof operation, the extension back pouring seam interval, prevent the fissured appearance of bulky concrete and high-strength concrete difference in temperature, and then at the in-process that connects of concrete, can make the concrete of space department appear slight inflation, and then make the space filled, and then make the wholeness of foundation pile increase, and then make the intensity of foundation pile increase, can make the water proofness of foundation pile increase simultaneously, and then avoid in the use in later stage because the existence in gap, and then cause the corrosion of the inside steel reinforcement cage of foundation pile, and then can increase the life of foundation pile.

Preferably, the manufacturing method of the reinforcement cage comprises the following steps:

s1: straightening the main reinforcement, and then connecting and forming the main reinforcement through a positioning steel bar;

s2: determining the distance between the bearing plates according to the size of aggregate particles of the cast concrete;

s3: mounting the fixed end head, the bearing plate and the self-locking component, keeping the bearing plate in a rotating non-self-locking state, and then temporarily fixing the bearing plate;

s4: straightening the spiral auxiliary ribs, and then sequentially spot-welding the fixed ends to the spiral auxiliary ribs at the intervals determined in the step S2;

s5: after the step S4 is completed, the spiral auxiliary ribs are spirally bent through a bending device;

s6: welding one end of the elastic sheet with the bearing plate, then overlapping the other end of the elastic sheet with the spiral auxiliary rib, and then removing the temporary consolidation of the bearing plate;

s7: and fully welding and reinforcing the joint of the fixed end and the spiral auxiliary rib through welding equipment to finish the manufacturing of the reinforcement cage.

When the supporting device works, the number of the supporting components is large, the supporting components are installed inside the spiral auxiliary ribs, and the middle part of the process of a welding machine can be conveniently caused, so that when a reinforcement cage is manufactured in the scheme, the main reinforcement is positioned and formed firstly, then the space of the supporting components is determined according to the size of aggregate particles, when the spiral auxiliary ribs are kept vertical, the supporting components are welded according to the space, and only electric welding is carried out during welding, because the spiral auxiliary ribs are kept vertical, the space during welding operation is large at the moment, and further the installation of the supporting components is more convenient, and further the production of the dead reinforcement cage is more convenient, and then through a spot welding mode, the spiral auxiliary ribs can be more easily deformed during bending, and further the bending of the spiral auxiliary ribs is easier, after the spiral auxiliary ribs are bent, the spiral auxiliary ribs and the supporting plates are welded, and are temporarily fixedly connected in the welding process, and further the rotation of the supporting plates is prevented, and further the supporting plates are prevented from being kept at the positions of the supporting plates in the manufacturing process of the reinforcement cage, and the manufacturing process of the reinforcement cage is more convenient; after the elastic piece is installed, the temporary consolidation is removed, so that the subsequent support plate can rotate conveniently; subsequently, the connection between the bearing component and the spiral auxiliary rib is reinforced, and the strength of the reinforcement cage is further ensured.

The invention has the following beneficial effects:

1. when the construction of the bored pile is carried out, the concrete grading experiment is carried out according to the designed strength requirement, the actual grading of the concrete is further determined, the maximum particle size of aggregate in the concrete is further determined, then the steel reinforcement framework is manufactured according to the particle size data of the maximum aggregate, the gap of the bearing part in the steel reinforcement framework is determined according to the particle size of the large aggregate in the concrete, then the bearing part is sequentially installed in the steel reinforcement framework, then the concrete is poured into the pile hole through the guide pipe, and as the bearing part is arranged in the steel reinforcement framework, the large aggregate with high specific gravity is supported by the bearing part when moving downwards in the pouring process and the vibrating process, so that the large aggregate on the upper part is prevented from moving downwards, and further the large aggregate can be uniformly distributed in the vertical direction of the pile body, so that the problem of low strength of the upper part of the pile body can be avoided, and the whole bearing capacity of the foundation pile can be improved; meanwhile, the bearing component is high in strength, so that the bearing component is added in the foundation pile, the overall strength of the pile body is increased, and the bearing capacity of the pile body is increased.

2. According to the invention, because the pouring is carried out from the bottom of the foundation pile hole upwards in the pouring process of drilling and pouring, if too many bearing components are added in the steel bar, the upward floating force borne by the steel bar cage is increased, the steel bar cage is further caused to float upwards, the strength of the formed pile is further caused to be uneven, and the bearing capacity of the formed pile is further reduced; then at the in-process of pouring, when the bearing board of lower part was walked over to the concrete on upper strata, when the pipe lifted, drive and trigger the part rebound, along with triggering the part rebound, and then can drive the bearing board and rotate, and then make the bearing board can rotate the position of bearing, when the bearing board rotated the position of bearing, the auto-lock part between bearing board and the fixed end started, and then make the rotational position of bearing board locked, and then make the bearing board can keep the stability in the position of bearing, and then make the bearing board have bearing capacity, and then guarantee that the bearing part can hold big aggregate, and then avoid the inhomogeneous condition of intensity to appear in the foundation pile.

3. According to the invention, the bearing plate is driven by the trigger component to rotate, so that the stop block and the first spring rotate, and one end of the stop block slides on the inner side of the fixed end socket along with the rotation of the bearing plate, and the stop block moves towards the direction of the inner part of the clamping groove under the elastic force action of the first spring when the stop block rotates to the position of the clamping groove, so that one end of the stop block goes deep into the clamping groove, and the other end of the stop block is positioned in the groove of the connecting frame on the bearing plate, so that the freedom degree of the connecting frame of the bearing plate and the rotating direction of the fixed end socket is limited, and the bearing plate can realize self-locking after rotating in place, and further the bearing plate can realize a bearing effect; simultaneously because the bearing board is in the concrete in the motion process, and then be provided with the sealing washer between the link at the bearing board and the fixed end in this scheme, and then make when the steel reinforcement cage is located the concrete, make to keep sealed between the link of bearing board and the fixed end, and then inside the grit of avoiding in the concrete enters into clearance between them, and then can guarantee the rotation that the bearing board can be smooth and easy, and then the rotation that can be convenient for the bearing board targets in place, and then make the bearing board have bearing capacity, and then guarantee that the bearing part can hold big aggregate, and then avoid the inhomogeneous condition of intensity to appear in the foundation pile.

4. According to the invention, the expansion piece is set to be in a magnetic attraction mode, so that when the expansion piece is close to the butt strap, the expansion piece attracts the butt strap, the expansion plate can be in contact with the butt strap, and the expansion piece can drive the bearing plate to turn over, so that the bearing plate can be driven to the position as a lining, the bearing plate can realize a bearing effect, large aggregates in the foundation pile can be uniformly distributed in the foundation pile, the strength in the foundation pile can be uniformly distributed, and the overall strength of the foundation pile can be improved.

5. According to the invention, as the plurality of telescopic pieces are arranged in the circumferential direction of the mounting seat, when the guide pipe is inclined, the telescopic piece on one side is close to the reinforcement cage, and the telescopic piece is far away from the butt strap on the opposite side, so that the supporting plate on the side is always not pulled up; therefore in this scheme, through the inside at the mount pad sets up the cavity, the medium is gone into in the cavity inside, and communicate a plurality of spouts through the connecting hole, and then when the pipe deflection appears, when the extensible member that leads to one side is close to the reinforcing bar hole of one side, make the extensible member of this side extruded to the inside of spout, and then make the medium of spout one side extruded inside the cavity, and then make the inside pressure of cavity increase, and then make the extensible member of other positions outwards stretch out, and then make the extensible member be close to the attachment strap of this side, and then guarantee that the extensible member and the attachment strap of this side can cooperate, and then guarantee that the extensible member can drive the upset with the bearing board, consequently can drive the bearing board to the position, and then can make the bearing board realize the effect of bearing, and then make the inside big aggregate of foundation pile can even distribution inside the foundation pile inside, and then make the inside intensity of foundation pile can even distribution, and then improve the bulk strength of foundation pile.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic view of the overall structure of the base unit according to the present invention;

FIG. 2 is a schematic view of the overall construction of the reinforcement cage of the present invention;

FIG. 3 is a schematic view of the trigger unit of the present invention;

FIG. 4 is a schematic view of the mounting structure of the adaptor plate and the resilient tab of the present invention;

FIG. 5 is a schematic view of the overall structure of the adaptor plate of the present invention;

FIG. 6 is a schematic view of the internal structure of the self-locking part of the present invention;

FIG. 7 is a first internal structural view of the trigger unit according to the present invention;

FIG. 8 is a second internal structural view of the trigger unit of the present invention;

FIG. 9 is a schematic cross-sectional view of a socket plate according to the present invention;

in the figure: the main rib 1, the spiral auxiliary rib 2, the supporting plate 3, the fixed end 4, the trigger component 6, the sealing ring 51, the stopper 52, the first spring 53, the groove 54, the clamping groove 55, the telescopic piece 61, the butt strap 62, the second spring 63, the mounting seat 64, the cavity 65, the connecting hole 66, the sliding groove 67 and the elastic sheet 68.

Detailed Description

The present invention will be further described with reference to the following detailed description so that the technical means, the creation features, the achievement purposes and the effects of the present invention can be easily understood.

A high-strength building foundation pile construction method comprises the following steps;

s8: after the concrete is kept, the pile head part of the upper part of the foundation pile hole which is over-poured is chiseled.

As shown in fig. 1 to 5, the reinforcement cage includes a main reinforcement 1, a spiral auxiliary reinforcement 2, a supporting plate 3, a fixed end 4, a self-locking component and a trigger component 6; the main ribs 1 are distributed along the circumference; a spiral auxiliary rib 2 is arranged outside the main rib 1; the spiral auxiliary ribs 2 are distributed in a spiral ascending shape; the spiral auxiliary rib 2 is fixedly connected with the main rib 1; the inner sides of the spiral auxiliary ribs 2 are uniformly provided with the fixed end heads 4 at intervals; the fixed end 4 is fixedly connected with the spiral auxiliary rib 2; one side of the fixed end 4 is provided with the bearing plate 3; the connecting frame arranged at the end part of the supporting plate 3 is rotationally connected with the fixed end 4; the self-locking part is arranged in the fixed end head 4; the self-locking component is used for locking the rotation of the bearing plate 3; the bottom end of the perfusion catheter is provided with a trigger part 6; the trigger component 6 is used for driving the bearing plate 3 to rotate to a bearing position.

During operation, the steel reinforcement cage is upwards poured from the bottom of a foundation pile hole in the pouring process of drilling and pouring, if too many bearing components are added inside the steel reinforcement, the upward floating force borne by the steel reinforcement cage is increased, the steel reinforcement cage is further upwards floated, the strength of the formed pile is further uneven, and the bearing capacity of the formed pile is further reduced, therefore, in the scheme, the triggering components 6 are arranged at the end parts of the guide pipes, the bearing plates 3 are sequentially arranged on the inner sides of the spiral auxiliary ribs 2, the bearing plates 3 are rotatably connected with the spiral auxiliary ribs 2, before pouring, the bearing plates 3 are swung downwards, so that the contact surface between the bearing plates 3 and the upwards moving concrete is reduced during pouring of the concrete, the concrete scouring upward floating force borne by the bearing plates 3 is reduced, the upward floating force borne by the steel reinforcement cage is reduced, and the upward floating of the steel reinforcement cage is avoided in the pouring process, and the overall strength of the foundation pile can be further ensured; at the in-process of pouring afterwards, when the concrete on upper strata was overflowed lower part bearing board 3, when the pipe lifted, drive trigger part 6 rebound, along with trigger part 6 rebound, and then can drive bearing board 3 and rotate, and then make bearing board 3 can rotate the position of bearing, when bearing board 3 rotated the position of bearing, the auto-lock part between bearing board 3 and fixed end 4 started, and then make the rotational position of bearing board 3 locked, and then make bearing board 3 can keep the stability in the position of bearing, and then make bearing board 3 have bearing capacity, and then guarantee that bearing part can hold up big aggregate, and then avoid the inhomogeneous condition of intensity to appear in the foundation pile.

As shown in fig. 6, the self-locking component comprises a sealing ring 51, a stop block 52 and a first spring 53; an annular groove is formed in the inner side of the fixed end head 4; the sealing ring 51 is clamped in the annular groove; grooves 54 are symmetrically formed in the connecting frame of the supporting plate 3; a first spring 53 is arranged in the groove 54; one end of the first spring 53 is fixedly connected with the connecting frame; the other end of the first spring 53 is provided with the stop block 52; the stop block 52 is fixedly connected with the other end of the first spring 53; the stop block 52 is in sliding connection with the groove 54; the inner side of the fixed end 4 is symmetrically provided with clamping grooves 55; the catch 55 cooperates with the stop 52.

When the bearing plate works, the bearing plate is driven by the trigger part 6 to rotate, the stop block 52 and the first spring 53 are further rotated, along with the rotation of the bearing plate, one end of the stop block 52 slides on the inner side of the fixed end socket 4, the clamping groove 55 is formed in the fixed end socket 4, and when the stop block 52 rotates to the position of the clamping groove 55, the stop block 52 moves towards the direction of the inner part of the clamping groove 55 under the elastic action of the first spring 53, so that one end of the stop block 52 extends into the clamping groove 55, the other end of the stop block 52 is positioned in the groove 54 of the connecting frame on the bearing plate 3, the freedom degree of the connecting frame of the bearing plate 3 and the rotation direction of the fixed end socket 4 is limited, and the self-locking of the bearing plate 3 can be realized after the bearing plate is rotated in place, so that the bearing plate 3 can realize the bearing effect; simultaneously because bearing board 3 is in the concrete in the motion process, and then be provided with sealing washer 51 between link and the fixed end 4 through at bearing board 3 in this scheme, and then make when the steel reinforcement cage is located the concrete, make to keep sealed between the link of bearing board 3 and fixed end 4, and then it enters into inside the clearance between them to avoid the grit in the concrete, and then can guarantee the rotation that bearing board 3 can be smooth and easy, and then can be convenient for bearing board 3's rotation targets in place, and then make bearing board 3 have bearing capacity, and then guarantee that bearing part can hold up big aggregate, and then avoid the base pile to appear the inhomogeneous condition of intensity.

As shown in fig. 3, 7 and 8, the trigger member 6 includes a telescopic member 61, a butt strap 62, a second spring 63 and a mounting seat 64; the bottom end of the perfusion catheter is provided with the mounting seat 64; the mounting seat 64 is provided with sliding grooves 67 at equal intervals along the circumferential direction; the second spring 63 is arranged in the sliding groove 67; the second spring 63 is fixedly connected with one end of the mounting seat 64; the other end of the second spring 63 is provided with the telescopic piece 61; the telescopic piece 61 is fixedly connected with the other end of the second spring 63; the telescopic piece 61 is connected with the side wall of the sliding groove 67 in a sliding manner; the butt strap 62 is arranged on one side of the bearing plate 3; one end of the butt strap 62 is fixedly connected with the bearing plate 3; the butt strap 62 is matched with the telescopic piece 61; the telescopic member 61 has a magnetic attraction characteristic.

During operation, the conduit is lifted, so that the extensible member 61 moves upwards, and the extensible member 61 hooks the attachment plate 62, and further moves upwards along with the continuous movement of the conduit, and the extensible member 61 drives the attachment plate 62 to move, so that the bearing plate 3 turns upwards, and the bearing plate 3 rotates to a bearing position, so that a bearing effect is achieved, meanwhile, the conduit needs to go deep into the base pile hole for a long time during the filling process, the extensible member 61 and the attachment plate 62 need to be overlapped during the filling process, so that the bearing plate 3 can be pulled up, and the bearing plate 3 can be supported, and the conduit can deform during the filling process due to the length process of the conduit, and further the extensible member 61 shifts, and then can lead to making extensible member 61 can not with the lap joint of attachment strap 62 at the in-process that the pipe went up, and then can lead to bearing plate 3 can not driven the position of bearing, therefore in this scheme, through setting extensible member 61 to the mode of magnetism, and then make near that extensible member 61 is close to attachment strap 62, make extensible member 61 attract attachment strap 62, and then make the extensible plate can contact with attachment strap 62, and then guarantee that extensible member 61 can drive bearing plate 3 and overturn, consequently can drive bearing plate 3 to the position of bearing, and then can make bearing plate 3 realize the effect of bearing, and then make the inside big aggregate of foundation pile can even distribution inside the foundation pile, and then make the inside intensity of foundation pile can even distribution, and then improve the bulk strength of foundation pile.

As shown in fig. 7 and 8, a cavity 65 is formed inside the mounting seat 64; the bottom of the sliding groove 67 is provided with a connecting hole 66; the connecting hole 66 is communicated with the cavity 65 and the sliding groove 67; the telescopic member 61 is sealed with the side wall of the sliding groove 67.

During operation, as the plurality of telescopic pieces 61 are arranged in the circumferential direction of the mounting seat 64, when the guide pipe is inclined, the telescopic piece 61 on one side is close to the reinforcement cage, and the telescopic piece 61 on the opposite side is far away from the butt strap 62 on the opposite side, so that the supporting plate 3 on the opposite side is not pulled up all the time; therefore, in this scheme, through set up cavity 65 in the inside of mount pad 64, the medium is gone into in cavity 65 inside, and communicate a plurality of spouts 67 through connecting hole 66, and then when the pipe deflection appears, when leading to the extensible member 61 of one side to be close to the reinforcing bar hole of one side, make the extensible member 61 of this side extruded to the inside of spout 67, and then make the medium of spout 67 one side extruded inside cavity 65, and then make the inside pressure of cavity 65 increase, and then make the extensible member 61 of other positions outwards stretch out, and then make extensible member 61 be close to the strap 62 of this side, and then guarantee that the extensible member 61 of this side can cooperate with strap 62, and then guarantee that extensible member 61 can drive the upset with bearing board 3, consequently can drive bearing board 3 to the position, and then can make bearing board 3 realize the effect of bearing, and then make the inside big aggregate of foundation pile can evenly distribute inside the foundation pile inside, and then make the inside intensity of foundation pile evenly distribute, and then improve the bulk strength of foundation pile.

As shown in fig. 4 and 5, an elastic piece 68 is provided on one side of the support plate 3; one end of the elastic piece 68 is fixedly connected with the supporting plate 3, and the other end of the elastic piece 68 is lapped with the spiral auxiliary rib 2.

When the self-locking device works, the bearing plate 3 is rotatably arranged, the self-locking component can be started after the bearing plate 3 rotates, and the inside of a foundation pile hole is filled with mud before pouring, so that the bearing plate 3 can be turned up in the process of lowering the reinforcement cage, the bearing plate 3 can be rotated to a bearing position before concrete pouring, the upward floating force of the reinforcement cage is larger in the later concrete pouring process, and the reinforcement cage can float upwards; therefore, in the scheme, the elastic piece 68 is arranged on one side of the bearing plate 3, one end of the elastic piece 68 is in lap joint with the spiral auxiliary rib 2 before the steel reinforcement cage is placed, so that the movement of the bearing plate 3 in the rotating direction can be limited in the placing process of the steel reinforcement cage, the bearing plate 3 cannot rotate in advance in the placing process, and the steel reinforcement cage is prevented from floating upwards in the concrete pouring process; meanwhile, in the process of pouring concrete, the concrete moves from bottom to top, and the uppermost concrete is the concrete for isolation and is used for isolating the slurry on the upper part from the concrete on the lower part, so that the water cement ratio of the concrete on the lower part is not changed, therefore, in the process of pouring, if the upper layer of concrete for isolation fills the bearing plate 3, the bearing plate 3 can block the isolated concrete on the upper layer, so that the concrete on the upper layer is mixed with the concrete on the lower part, the water cement ratio of the concrete on the lower part is changed, and the pile forming quality is poor, and due to the elastic characteristic of the elastic sheet 68, the elastic sheet 68 is deformed under the driving of the trigger part 6, so that the bearing plate 3 can be turned over; therefore, the elastic sheet 68 arranged in the scheme is under the filling of the upper-layer concrete, so that the bearing plate 3 can be ensured not to overturn, the bearing plate 3 can be prevented from blocking the upper-layer isolated concrete, the quality of the lower-layer concrete can be ensured, and the quality of a pile can be ensured.

As shown in fig. 9, the cross section of the supporting plate 3 is a diamond-shaped structure; the narrow side of the supporting plate 3 is arranged along the vertical direction.

In the working process, because the bearing plate 3 needs to swing in concrete in the process of forming the pile, if the thickness of the bearing plate is thicker, the force required by the swing is larger in the swinging process, and the large aggregate in the swinging path can be shifted to other positions in the swinging process, so that a mortar belt is formed on the shifted path, and further the overall strength of the foundation pile is reduced, therefore, in the scheme, the section of the bearing plate 3 is set into a diamond shape, and the narrow side is kept in the moving direction, and further in the moving process of the bearing plate 3, the bearing plate 3 can slide along the surface of the bearing plate 3, as shown in fig. 9, the concrete on two sides of the bearing plate 3 can pass through the bearing plate 3, the round at the back of the bearing plate 3 can prevent the large aggregate on the shifting path, further the uniform distribution of the large aggregate in the foundation pile can be ensured, meanwhile, the overall strength of the foundation pile can be ensured, and meanwhile, because in the moving process, the area of one side, towards which the bearing plate 3 faces, further, the bearing plate 3 can move more easily, and the reliability of the foundation pile can be improved.

And an expanding agent is doped in the concrete poured by the foundation pile.

During operation, in the process of pile forming, the bearing plate 3 needs to swing in concrete, so that a narrow gap can be formed at the rear part of the bearing plate 3 in the moving direction, a gap can be formed in the foundation pile, and the strength of the foundation pile can be reduced; the durability is good, the expansion performance is stable, and the strength is continuously improved; ordinary concrete often leaks due to shrinkage cracking, reducing its functionality and durability. 8 to 12 percent of expanding agent is doped in the cement, and the cement can be mixed into shrinkage-compensating concrete, so that the crack resistance and the water resistance of a concrete structure are greatly improved; can cancel outer waterproof operation, the extension back pouring seam interval, prevent the fissured appearance of bulky concrete and high-strength concrete difference in temperature, and then at the in-process that connects of concrete, can make the concrete of space department appear slight inflation, and then make the space filled, and then make the wholeness of foundation pile increase, and then make the intensity of foundation pile increase, can make the water proofness of foundation pile increase simultaneously, and then avoid in the use in later stage because the existence in gap, and then cause the corrosion of the inside steel reinforcement cage of foundation pile, and then can increase the life of foundation pile.

The manufacturing method of the reinforcement cage comprises the following steps:

s1: straightening the main reinforcement 1, and then connecting and forming the main reinforcement 1 through a positioning steel bar;

s2: determining the distance between the bearing plates 3 according to the size of aggregate particles of the cast concrete;

s3: mounting the fixed end 4, the bearing plate 3 and the self-locking part, keeping the bearing plate 3 in a rotating non-self-locking state, and then temporarily fixing the bearing plate 3;

s4: straightening the spiral auxiliary ribs 2, and then sequentially spot-welding the fixed end heads 4 to the spiral auxiliary ribs 2 at the intervals determined in the step S2;

s5: after the step S4 is completed, the spiral auxiliary ribs 2 are spirally bent through a bending device;

s6: welding one end of the elastic sheet 68 with the bearing plate 3, then overlapping the other end of the elastic sheet 68 with the spiral auxiliary rib 2, and then removing the temporary fixation of the bearing plate 3;

s7: and (3) fully welding and reinforcing the joint of the fixed end 4 and the spiral auxiliary rib 2 through welding equipment to complete the manufacturing of the reinforcement cage.

When the supporting device works, the number of the supporting components is large, the supporting components are installed inside the spiral auxiliary ribs 2, and the middle part of the process of a welding machine is convenient, so that when a reinforcement cage is manufactured in the scheme, the main reinforcement is positioned and formed firstly, then the distance between the supporting components is determined according to the size of aggregate particles, when the spiral auxiliary ribs 2 are kept vertical, the supporting components are welded according to the distance, and only electric welding is carried out during welding, because the spiral auxiliary ribs 2 are kept vertical, the space during welding operation is large at the moment, and further the supporting components are convenient to install, and further the dead reinforcement cage is more convenient to produce, and then the spiral auxiliary ribs 2 can be deformed more easily during bending through a spot welding mode, so that the spiral auxiliary ribs 2 are easier to bend, after the spiral auxiliary ribs 2 are bent, the spiral auxiliary ribs 2 are welded with the reinforcing steel bars, the supporting plate 3 is temporarily fixedly connected in the welding process, and further the rotation of the supporting plate 3 is prevented, and further the supporting plate 3 is prevented from being kept at the supporting position during the manufacturing process of the reinforcement cage, and the manufacturing process of the reinforcement cage is more convenient; then after the elastic piece 68 is installed, the temporary consolidation is removed, so that the subsequent support plate can rotate conveniently; subsequently, the connection between the bearing component and the spiral auxiliary rib 2 is reinforced, and the strength of the reinforcement cage is further ensured.

During operation, during construction of a bored pile, a grading experiment of concrete is performed according to designed strength requirements, actual grading of the concrete is further determined, the maximum particle size of aggregate in the concrete is further determined, then a steel reinforcement framework is manufactured according to particle size data of the maximum aggregate, gaps of bearing parts in the steel reinforcement framework are determined according to the particle size of the large aggregate in the concrete, the bearing parts are sequentially mounted in the steel reinforcement framework, then the concrete is poured into a foundation pile hole through a guide pipe, and due to the fact that the bearing parts are arranged in the steel reinforcement framework, when the large aggregate with the large specific gravity moves downwards in the pouring process and the vibrating process, the large aggregate with the large specific gravity can be supported by the bearing parts, so that the large aggregate on the upper portion is prevented from moving downwards, the large aggregate can be uniformly distributed in the vertical direction of the pile body, the problem that the strength of the upper portion of the pile body is low can be avoided, and the overall bearing capacity of the foundation pile can be improved; meanwhile, because the strength of the bearing part is higher, the bearing part is added in the foundation pile, so that the integral strength of the pile body is increased, and the bearing capacity of the pile body is increased; because the pouring is carried out from the bottom of the foundation pile hole upwards in the pouring process of drilling and pouring, if too many bearing components are added in the steel bar, the upward floating force borne by the steel bar cage is increased, the steel bar cage is further caused to float upwards, the strength of the formed pile is further caused to be uneven, and the bearing capacity of the formed pile is further caused to be reduced, in the scheme, the triggering component 6 is arranged at the end part of the conduit, meanwhile, the bearing plate 3 is sequentially arranged on the inner side of the spiral auxiliary rib 2, the bearing plate 3 is rotationally connected with the spiral auxiliary rib 2, before the pouring is carried out, the bearing plate 3 is swung downwards, so that the contact surface between the bearing plate 3 and the concrete moving upwards is reduced during the concrete pouring, the upward floating force borne by the bearing plate 3 is reduced, the upward floating force borne by the steel bar cage is reduced, and the upward floating force borne by the steel bar cage is avoided in the pouring process, and the integral strength of the foundation pile can be ensured; then in the pouring process, when the upper layer of concrete overflows the lower bearing plate 3, when the guide pipe is lifted, the trigger part 6 is driven to move upwards, the trigger part 6 moves upwards, and then the bearing plate 3 can be driven to rotate, so that the bearing plate 3 can rotate to a bearing position, when the bearing plate 3 rotates to the bearing position, the self-locking part between the bearing plate 3 and the fixed end 4 is started, so that the rotating position of the bearing plate 3 is locked, so that the bearing plate 3 can be kept stable at the bearing position, and further the bearing plate 3 has bearing capacity, so that the bearing part can be ensured to bear large aggregates, and the condition that the strength of the foundation pile is uneven is avoided; the bearing plate is driven by the trigger part 6 to rotate, so that the stopper 52 and the first spring 53 rotate, and along with the rotation of the bearing plate, one end of the stopper 52 slides inside the fixed end socket 4, because the clamping groove 55 is arranged inside the fixed end socket 4, when the stopper 52 rotates to the position of the clamping groove 55, under the elastic action of the first spring 53, the stopper 52 moves towards the direction inside the clamping groove 55, so that one end of the stopper 52 extends into the clamping groove 55, and the other end of the stopper 52 is positioned inside the groove 54 of the connecting frame on the bearing plate 3, so that the degree of freedom of the connecting frame of the bearing plate 3 and the rotating direction of the fixed end socket 4 is limited, and the bearing plate 3 can realize self-locking after rotating in place, and further the bearing plate 3 can realize the bearing effect; simultaneously because bearing plate 3 is in the concrete in the motion process, and then be provided with sealing washer 51 between link and the fixed end 4 through at bearing plate 3 in this scheme, and then make when the steel reinforcement cage is located the concrete, make to keep sealed between bearing plate 3's link and the fixed end 4, and then avoid the grit in the concrete to enter into inside clearance between them, and then can guarantee bearing plate 3 can smooth and easy rotation, and then can be convenient for bearing plate 3's rotation targets in place, and then make bearing plate 3 have the bearing capacity, and then guarantee that bearing member can hold big aggregate, and then avoid the foundation pile condition that intensity is inhomogeneous to appear.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A high-strength building foundation pile construction method is characterized by comprising the following steps: comprises the following steps;

s1: preparing concrete according to the design requirement, completing the selection of the gradation of the concrete and carrying out the solidification expansion experiment of the concrete;

s3: installing a guide support, installing the guide sleeve of the perfusion catheter, and measuring and adjusting the guide sleeve to ensure that the axis of the guide sleeve is superposed with the axis of the foundation pile hole;

s4: after the positioning and installation of the guide pipe guide sleeve in the step S2 are completed, the pouring guide pipe is put down until the distance between the bottom end of the guide pipe and the hole bottom is 2 times of the maximum aggregate particle size in the poured concrete, and then the pouring guide pipe is fixed;

2. The construction method of the high-strength building foundation pile according to claim 1, wherein: the reinforcement cage comprises a main reinforcement (1), a spiral auxiliary reinforcement (2), a bearing plate (3), a fixed end (4), a self-locking part and a triggering part (6); the main ribs (1) are distributed along the circumference; a spiral auxiliary rib (2) is arranged outside the main rib (1); the spiral auxiliary ribs (2) are distributed in a spiral ascending shape; the spiral auxiliary rib (2) is fixedly connected with the main rib (1); the inner sides of the spiral auxiliary ribs (2) are uniformly provided with the fixed end heads (4) at intervals; the fixed end (4) is fixedly connected with the spiral auxiliary rib (2); the bearing plate (3) is arranged on one side of the fixed end (4); the connecting frame arranged at the end part of the supporting plate (3) is rotationally connected with the fixed end (4); the self-locking part is arranged in the fixed end head (4); the self-locking component is used for locking the rotation of the bearing plate (3); the bottom end of the perfusion catheter is provided with the trigger component (6); the trigger component (6) is used for driving the bearing plate (3) to rotate to a bearing position.

3. The construction method of the high-strength building foundation pile according to claim 2, wherein: the self-locking component comprises a sealing ring (51), a stop block (52) and a first spring (53); an annular groove is formed in the inner side of the fixed end (4); the sealing ring (51) is clamped in the annular groove; grooves (54) are symmetrically formed in the connecting frame of the supporting plate (3); the first spring (53) is arranged in the groove (54); one end of the first spring (53) is fixedly connected with the connecting frame; the other end of the first spring (53) is provided with the stop block (52); the stop block (52) is fixedly connected with the other end of the first spring (53); the stop block (52) is in sliding connection with the groove (54); clamping grooves (55) are symmetrically formed in the inner side of the fixed end head (4); the clamping groove (55) is matched with the stop block (52).

4. A high-strength building foundation pile construction method according to claim 3, wherein: the trigger component (6) comprises a telescopic piece (61), a butt strap (62), a second spring (63) and a mounting seat (64); the bottom end of the perfusion catheter is provided with the mounting seat (64); the mounting seats (64) are provided with sliding grooves (67) at intervals along the circumferential direction; the second spring (63) is arranged in the sliding groove (67); the second spring (63) is fixedly connected with one end of the mounting seat (64); the other end of the second spring (63) is provided with the telescopic piece (61); the telescopic piece (61) is fixedly connected with the other end of the second spring (63); the telescopic piece (61) is connected with the side wall of the sliding groove (67) in a sliding manner; one side of the bearing plate (3) is provided with the butt strap (62); one end of the butt strap (62) is fixedly connected with the bearing plate (3); the butt strap (62) is matched with the telescopic piece (61); the telescopic piece (61) has magnetic attraction property.

5. The construction method of the high-strength building foundation pile according to claim 4, wherein: a cavity (65) is formed in the mounting seat (64); the bottom of the sliding groove (67) is provided with a connecting hole (66); the connecting hole (66) is communicated with the cavity (65) and the sliding groove (67); the telescopic piece (61) is sealed with the side wall of the sliding groove (67).

6. The construction method of the high-strength building foundation pile according to claim 5, wherein: one side of the bearing plate (3) is provided with an elastic sheet (68); one end of the elastic sheet (68) is fixedly connected with the bearing plate (3); the other end of the elastic piece (68) is in lap joint with the spiral auxiliary rib (2).

7. The construction method of the high-strength building foundation pile according to claim 6, wherein: the cross section of the supporting plate (3) is of a diamond-shaped structure; the narrow edge of the bearing plate (3) is arranged along the vertical direction.

8. The construction method of a high-strength building foundation pile according to claim 7, wherein: and an expanding agent is doped in the concrete poured by the foundation pile.

9. The construction method of a high-strength building foundation pile according to claim 8, wherein: the manufacturing method of the reinforcement cage comprises the following steps:

s1: straightening the main reinforcement (1), and then connecting and forming the main reinforcement (1) through a positioning steel bar;

s2: determining the distance between the bearing plates (3) according to the size of aggregate particles of the poured concrete;

s3: mounting the fixed end head (4), the bearing plate (3) and the self-locking component, keeping the bearing plate (3) in a rotating non-self-locking state, and then temporarily fixing the bearing plate (3);

s4: straightening the spiral auxiliary rib (2), and then sequentially spot-welding the fixed end (4) to the spiral auxiliary rib (2) at the interval determined in the step S2;

s5: after the step S4 is completed, the spiral auxiliary rib (2) is spirally bent through a bending device;

s6: welding one end of the elastic sheet (68) with the bearing plate (3), then overlapping the other end of the elastic sheet (68) with the spiral auxiliary rib (2), and then removing the temporary consolidation of the bearing plate (3);

s7: and (3) fully welding and reinforcing the joint of the fixed end (4) and the spiral auxiliary rib (2) through welding equipment to finish the manufacturing of the reinforcement cage.