CN217629895U - Pile foundation cutting and dismantling system - Google Patents

Abstract

The utility model relates to a pile foundation cuts and demolishs system, include: the device comprises a protective cover easy to operate at the top of a pile casing, a pile pulling and hanging fixing device, an inner annular guide rail of the steel pile casing, a cutting machine orifice hanging control device, jacks with arc plates in up-and-down symmetry, an impact hammer impact auxiliary dismantling device and a pile hole mixture vibration filling device. The utility model has the advantages that: the pile pulling and hoisting device is arranged, so that the open-air time of the foundation pit is reduced, and the stability of the side slope is guaranteed; a reinforcement cage is arranged and used for isolating the pile head reinforcement from concrete; the pile pulling construction machine is used for separating the pile head from the pile body, and the bending of the steel bars in the pile head chiseling process is effectively avoided; the top of the steel casing is provided with the easy-to-operate protective sealing cover, the structure is simple and convenient, the installation and the end cover recovery are convenient, and the vibrator for vibrating and loosening the soil near the steel casing is arranged so as to facilitate the recovery of the steel casing; a pile hole mixture filling device is arranged; the movable plate is arranged, so that the pile hole mixture filling device can prevent peripheral impurities from falling into the holes.

Description

Pile foundation cutting and dismantling system

Technical Field

The utility model relates to a pile foundation construction field especially includes a pile foundation cuts demolishs system.

Background

With the social progress, civil engineering has also developed rapidly, and high-rise buildings have become essential buildings for people's life and work. In the high-rise building foundation, the pile foundation plays a very important role, and the appearance of the pile foundation makes the super high rise practical.

However, this also causes problems in that the underground pile foundations, when the underground space is reused at the end of the life of the building, cause a great hindrance to the construction. If some rebuilt buildings are similar to old building foundations, the rebuilt buildings can be subjected to foundation recycling, and one damaged pile in the rebuilt buildings can be dismantled. However, when the underground space is to be utilized for building, the pile foundation needs to be completely removed.

At present, pile extractors are generally adopted for pile foundation demolition, and the pile extractors are pile machinery for extracting piles from stratums by using vibration, static force or hammering action; the pile-drawing operation usually adopts a corresponding vibration pile-drawing machine, a static pile-pressing machine or a double-acting pneumatic hammer, and is matched with a pile frame and a rigging, so the pile-drawing operation is also called a vibration pile-drawing machine and a static pile-pressing machine.

Vibration pile pulling is common in pile foundation demolition construction; during operation, the vibration pile driver is fixedly arranged on the pile head, the pile foundation to be dismounted is hung under the lifting hook through the spring vibration absorbers and the rigging, the vibration pile driver is started, the vibration generated by the vibrator causes the pile and the soil body to resonate, the soil body structure is further damaged, the friction force between the pile body and the soil body is reduced, and the rigging is tightened simultaneously to gradually extract the pile foundation. If an eccentric block type vibrator is adopted, the eccentric block must be adjusted due to different resistance directions of pile sinking and pile pulling. The hydraulic pile extractor extracts piles section by section, is only suitable for being applied to soil, sandy soil or soil layers containing a small amount of gravels to extract I-shaped steel or section steel piles, has higher cost and is only suitable for removing a small amount of piles.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough among the prior art, provide a pile foundation cuts and demolishs system.

The pile foundation truncation and demolition system comprises an easy-to-operate protective sealing cover at the top of a pile casing, a pile pulling and hanging fixing device, an inner annular guide rail of a steel casing, a cutting machine orifice hoisting control device, vertically symmetrical arc plate jacks, an impact hammer impact auxiliary demolition device and a pile hole mixture vibration filling device; an end cover is arranged at the top of the steel casing, and an easy-to-operate protective sealing cover at the top of the casing is arranged above the end cover;

the pile pulling and hoisting off pile head fixing device comprises a composite loose sleeve, a main reinforcement, a stirrup, a poured concrete pile head, a steel wire rope and a steel chisel; a cast-in-place concrete pile head is arranged above the hoisting pile head, a plurality of main reinforcements are arranged on the cast-in-place concrete pile head in a driving mode, a composite loose sleeve is nested at the upper end of each main reinforcement, and annular stirrups are arranged on the outer sides of the main reinforcements; steel rods are arranged on the same horizontal plane on which the concrete pile heads are poured along the diameter direction of the pile, steel wire ropes are hung on the steel rods, and a crawler crane is connected with the steel rods through the steel wire ropes;

the steel casing inner annular guide track comprises a vertical liquid injection pipe, a transverse annular guide pipe, an inner guide pipe and a steering gear; the transverse annular guide pipe is transversely nested on the surface of the reinforcement cage, and the vertical liquid injection pipe is vertically laid on the surface of the reinforcement cage and fixed by an iron wire; more than two liquid outlets are transversely and uniformly distributed on the inner side of the transverse annular guide pipe; a liquid outlet at the lower end of the vertical liquid injection pipe is communicated with a liquid inlet of the transverse annular guide pipe through an insertion valve; a transverse liquid outlet of the transverse annular conduit is communicated with a liquid inlet of the inner conduit through a diverter and an insertion valve; the axial direction and the length direction of the pipe walls of the transverse annular guide pipe and the inner guide pipe are uniformly provided with one-way liquid spraying holes.

Preferably, the easy-to-operate protective sealing cover at the top of the protective cylinder comprises a cylindrical shell arranged on the outer side and a sealing end arranged on the inner side; the outer side wall of the cylindrical shell is provided with a vibrator; the sealing end comprises a cone frustum and a sealing pot from bottom to top, and the cone frustum is connected with the sealing pot through a flange; the lower side of the cone frustum is connected with the inner side wall of the cylindrical shell, and a reinforcing plate is arranged between the outer side of the cone frustum and the inner side of the cylindrical shell; at least two hoisting holes are arranged on the side wall of the cylindrical shell.

Preferably, the cutting machine is hung in the control device at the hole opening, and the crawler crane is provided with jacks with arc plates which are symmetrical up and down; the crawler crane is connected with pile pulling construction machinery through a steel wire rope in a hanging mode, the pile pulling construction machinery is provided with a tension sensor, a spiral rotating rod and an outer steel sleeve, the upper portion of the tension sensor is connected with the top of the pile pulling construction machinery through the spiral rotating rod, and the lower portion of the tension sensor is fixed at a steel wire rope key buckling point on the inner steel sleeve through the steel wire rope; the spiral rotating rod is connected with an inner steel sleeve, the inner steel sleeve is connected in a multi-section mode, and an outer steel sleeve is sleeved outside the inner steel sleeve.

Preferably, the rotating directions of the outer steel sleeve and the spiral rotating rod are synchronous; the bottom end of the outer steel sleeve is embedded with a titanium alloy drill bit.

Preferably, the screw rods of the vertically symmetrical jack with the arc plates are in threaded connection with screw rod nut seats, and one end part of each screw rod is also provided with a connecting seat; each lead screw nut seat is connected with the lead screw nut seat which is buckled inside symmetrically up and down; the support rod positioned above the screw nut seat is rotationally connected to the bearing plate through a rotating shaft, and the support rod positioned below the screw nut seat is rotationally connected to the base through the rotating shaft; the bearing plate below is fixedly connected with arc limiting plate still, has seted up the arc spout on the arc limiting plate, and sliding connection has the slider in the arc spout.

Preferably, in the impact hammer impact auxiliary dismantling device, an overwater working platform is built on water, a winch is mounted on the overwater working platform, a rack of the winch is connected with the impact hammer through a steel wire rope, and the impact hammer is arranged above the steel pipe pile.

Preferably, in the pile hole mixture vibration filling device, the end face of the fixed end of the lifting electric telescopic rod is movably connected with a sleeve rod, the lower part of the inner side wall of the sleeve rod is fixedly connected with a partition plate, and the upper surface of the sleeve rod is fixedly connected with a handle rod; the end face of the movable end of the electric telescopic rod is fixedly connected with a screw rod, the outer side face of the screw rod is in threaded connection with a sliding block, the sliding block is connected with a transmission block, the lower outer side face of the transmission block is respectively and fixedly connected with two movable plates on the left side and the right side, an extrusion structure is arranged below the transmission block, and the extrusion structure is in contact with the movable plates; the outer bottoms of the two movable plates are provided with limiting rings.

The utility model has the advantages that: the utility model is provided with the pile pulling and lifting device away from the pile head, thereby reducing the open-air time of the foundation pit and being beneficial to ensuring the stability of the side slope; a reinforcement cage is arranged and used for isolating the pile head reinforcement from concrete; the pile pulling construction machine is used for separating the pile head from the pile body, and the bending of the steel bars in the pile head chiseling process is effectively avoided; the top of the pile casing is provided with the easy-to-operate protective sealing cover, the structure is simple and convenient, the installation and the end cover recovery are convenient, and the vibrator for loosening the soil near the steel pile casing is arranged so as to facilitate the recovery of the steel pile casing; a pile hole mixture filling device is arranged; a movable plate is arranged, so that the pile hole mixture filling device can prevent peripheral impurities from falling into the holes; the extrusion structure is arranged in a matching way, so that the loosening condition after filling is avoided; the titanium alloy drill bit is embedded at the bottom end of the outer steel sleeve, so that the cutting and crushing capacity is high.

Drawings

FIG. 1 is a construction flow chart of the pile foundation cutting-off and dismantling system of the utility model;

FIG. 2 is a schematic view of a pile head reinforcing steel bar composite loose sleeve;

FIG. 3 is a schematic view of the pile pulling and hanging fixture;

FIG. 4 is a schematic view of the top of the cartridge for easy access to the protective closure;

FIG. 5 is a schematic view of an annular guide track in the steel casing;

FIG. 6 is a schematic view of a cutter orifice hoist control;

FIG. 7 is a schematic view of a jack with arc plates which are symmetrical up and down;

fig. 8 is a schematic view of the fixing of the steel casing cut-off shaft;

FIG. 9 is a schematic view of the impact hammer impact-assisted demolition apparatus;

fig. 10 is a schematic view of a pile hole mixture vibration filling apparatus.

Description of reference numerals: 1-composite loose sleeve, 2-main reinforcement, 3-stirrup, 4-poured concrete pile head, 5-steel wire rope, 6-steel chisel, 7-hoisting pile head, 8-vibrator, 9-end cover, 10-hoisting hole, 11-flange, 12-reinforcing plate, 13-cylindrical shell, 14-sealing pot, 15-cone platform, 16-reinforcement cage, 17-transverse annular conduit, 18-vertical liquid injection pipe, 19-iron wire, 20-plug valve, 21-inner conduit, 22-outer steel sleeve, 23-inner steel sleeve, 24-tension sensor, 25-spiral rod, 26-up and down symmetrical arc plate jack, 27-crawler crane, 28-old pile, 29-base, 30-lead screw, 31-lead screw nut seat, 32-bearing plate, 33-arc limiting plate, 34-supporting rod, 35-connecting seat, 36-steel wire rope key fastening point, 37-water working platform, 38-windlass, 39-winch, 40-impact hammer, 41-frame, 41-steel pipe pile, 43-steel pipe, 42-bearing ring, 33-arc limiting plate, 34-supporting rod, 35-connecting seat, 36-steel wire rope key fastening point, extrusion rod, 45-48-telescopic rod, and extrusion rod.

Detailed Description

The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications and modifications also fall within the scope of the claims of the present invention.

As an example, as shown in fig. 1 to 10, a pile foundation truncation demolition system includes an easy-to-operate protective cover at the top of a pile casing, a pile pulling and hanging fixing device, an annular guide rail in a steel pile casing, a cutting machine orifice hanging control device, vertically symmetrical arc plate jacks 26, an impact hammer impact auxiliary demolition device and a pile hole mixture vibration filling device; an end cover 8 is arranged at the top of the steel casing, and a protective cover which is easy to operate at the top of the casing is arranged above the end cover 8;

the pile pulling and hoisting away pile head fixing device comprises a composite loose sleeve 1, a main reinforcement 2, a stirrup 3, a cast concrete pile head 4, a steel wire rope 5 and a steel chisel 6; a cast-in-place concrete pile head 4 is arranged above the hoisting pile head 7, a plurality of main reinforcements 2 are arranged on the cast-in-place concrete pile head 4 in a striking mode, the upper end of each main reinforcement 2 is nested with a composite loose sleeve 1, and annular stirrups 3 are arranged on the outer sides of the main reinforcements 2; a steel chisel 6 is arranged on the same horizontal plane of the poured concrete pile head 4 along the diameter direction of the pile, a steel wire rope 5 is hung on the steel chisel 6, and a crawler crane 27 is connected with the steel chisel 6 through the steel wire rope 5;

the steel casing inner annular guide track comprises a vertical liquid injection pipe 18, a transverse annular guide pipe 17, an inner guide pipe 21 and a steering gear; the transverse annular guide pipe 17 is transversely nested on the surface of the reinforcement cage 16, and the vertical liquid injection pipe 18 is vertically laid on the surface of the reinforcement cage 16 and fixed by an iron wire 19; more than two liquid outlets are transversely and uniformly distributed on the inner side of the transverse annular guide pipe 17; a liquid outlet at the lower end of the vertical liquid injection pipe 18 is communicated with a liquid inlet of the transverse annular guide pipe 17 through an insertion valve 20; the transverse liquid outlet of the transverse annular conduit 17 is communicated with the liquid inlet of the inner conduit 21 through a diverter and a plug-in valve 20; unidirectional liquid spraying holes are uniformly formed in the axial direction and the length direction of the pipe walls of the transverse annular guide pipe 17 and the inner guide pipe 21;

the easy-to-operate protective sealing cover at the top of the protective cylinder comprises a cylindrical shell 13 arranged on the outer side and a sealing end arranged on the inner side; the outer side wall of the cylindrical shell 13 is provided with a vibrator 9; the sealing end comprises a truncated cone 15 and a sealing pot 14 from bottom to top, and the truncated cone 15 is connected with the sealing pot 14 through a flange 11; the lower side of the cone frustum 15 is connected with the inner side wall of the cylindrical shell 13, and a reinforcing plate 12 is arranged between the outer side of the cone frustum 15 and the inner side of the cylindrical shell 13; at least two hoisting holes 10 are arranged on the side wall of the cylindrical shell 13;

in the cutting machine orifice hoisting control device, a crawler crane 27 is provided with vertically symmetrical jacks with arc plates 26; the crawler crane 27 is hoisted to pile pulling construction machinery through a steel wire rope 5, the pile pulling construction machinery is provided with a tension sensor 24, a spiral rotating rod 25 and an outer steel sleeve 22, the upper part of the tension sensor 24 is connected with the top of the pile pulling construction machinery through the spiral rotating rod 25, and the lower part of the tension sensor 24 is fixed at a steel wire rope key buckling point 36 on an inner steel sleeve 23 through the steel wire rope 5; the spiral rotating rod 25 is connected with an inner steel sleeve, the inner steel sleeve 23 is connected in multiple sections, and an outer steel sleeve 22 is sleeved outside the inner steel sleeve 23;

the rotation directions of the outer steel sleeve 22 and the spiral rotating rod 25 are synchronous; the bottom end of the outer steel sleeve 22 is embedded with a titanium alloy drill bit;

a screw nut seat 31 is connected to the screw 30 of the vertically symmetrical jack 26 with the arc plates in a threaded manner, and a connecting seat 35 is further arranged at one end of the screw 30; each screw nut seat 31 is connected with the screw nut seat 31 which is internally buckled up and down symmetrically; the supporting rod 34 positioned above the screw nut seat 31 is rotationally connected to the supporting plate 32 through a rotating shaft, and the supporting rod 34 positioned below the screw nut seat 31 is rotationally connected to the base 29 through a rotating shaft; an arc limiting plate 33 is fixedly connected below the bearing plate 32, an arc sliding groove is formed in the arc limiting plate 33, and a sliding block is connected in the arc sliding groove in a sliding manner;

in the impact hammer impact auxiliary dismantling device, an overwater working platform 37 is built on water, a winch 38 is installed on the overwater working platform 37, a rack 39 of the winch 38 is connected with an impact hammer 40 through a steel wire rope 5, and the impact hammer 40 is arranged above a steel pipe pile 41;

in the pile hole mixture vibration filling device, the end face of the fixed end of a lifting electric telescopic rod 48 is movably connected with a loop bar 47, the lower part of the inner side wall of the loop bar 47 is fixedly connected with a partition plate 45, and the upper surface of the loop bar 47 is fixedly connected with a handle rod 46; the end face of the movable end of the electric telescopic rod 48 is fixedly connected with a screw, the outer side face of the screw is in threaded connection with a sliding block 44, the sliding block 44 is connected with a transmission block, the left side face and the right side face of the lower outer side face of the transmission block are respectively and fixedly connected with two movable plates 43, an extrusion structure 49 is arranged below the transmission block, and the extrusion structure 49 is in contact with the movable plates 43; the outer bottoms of the two movable plates 43 are provided with limiting rings 42.

Claims (7)

1. Pile foundation cuts off demolishs system, its characterized in that: the device comprises an easy-to-operate protective sealing cover at the top of a pile casing, a pile pulling and hanging fixing device, an inner annular guide rail of the steel pile casing, a cutting machine orifice hanging control device, vertically symmetrical jacks with arc plates (26), an impact hammer impact auxiliary removing device and a pile hole mixture vibrating and filling device; an end cover (8) is arranged at the top of the steel casing, and an easy-to-operate protective sealing cover at the top of the casing is arranged above the end cover (8);

the pile pulling and hoisting-away pile head fixing device comprises a composite loose sleeve (1), a main reinforcement (2), a stirrup (3), a poured concrete pile head (4), a steel wire rope (5) and a steel chisel (6); a poured concrete pile head (4) is arranged above the hoisting pile head (7), a plurality of main reinforcements (2) are arranged on the poured concrete pile head (4) in a driving mode, the upper end of each main reinforcement (2) is nested with a composite loose sleeve (1), and annular stirrups (3) are arranged on the outer sides of the main reinforcements (2); steel rods (6) are arranged on the same horizontal plane of a poured concrete pile head (4) along the diameter direction of the pile, steel wire ropes (5) are hung on the steel rods (6), and a crawler crane (27) is connected with the steel rods (6) through the steel wire ropes (5);

the steel casing inner annular guide track comprises a vertical liquid injection pipe (18), a transverse annular guide pipe (17), an inner guide pipe (21) and a steering gear; the transverse annular guide pipe (17) is transversely nested on the surface of the steel reinforcement cage (16), and the vertical liquid injection pipe (18) is vertically laid on the surface of the steel reinforcement cage (16) and fixed by an iron wire (19); more than two liquid outlets are transversely and uniformly distributed on the inner side of the transverse annular guide pipe (17); a liquid outlet at the lower end of the vertical liquid injection pipe (18) is communicated with a liquid inlet of the transverse annular guide pipe (17) through an insertion valve (20); a transverse liquid outlet of the transverse annular conduit (17) is communicated with a liquid inlet of the inner conduit (21) through a diverter and an insertion valve (20); unidirectional liquid spraying holes are uniformly formed in the axial direction and the length direction of the tube wall of the transverse annular duct (17) and the inner duct (21).

2. The pile foundation truncation demolition system according to claim 1, wherein: the easy-to-operate protective sealing cover at the top of the protective cylinder comprises a cylindrical shell (13) arranged on the outer side and a sealing end arranged on the inner side; the outer side wall of the cylindrical shell (13) is provided with a vibrator (9); the sealing end comprises a cone frustum (15) and a sealing pot (14) from bottom to top, and the cone frustum (15) is connected with the sealing pot (14) through a flange (11); the lower side of the cone frustum (15) is connected with the inner side wall of the cylindrical shell (13), and a reinforcing plate (12) is arranged between the outer side of the cone frustum (15) and the inner side of the cylindrical shell (13); at least two hoisting holes (10) are arranged on the side wall of the cylindrical shell (13).

3. The pile foundation truncation demolition system according to claim 1, wherein: in the control device for hoisting the opening of the cutting machine, a crawler crane (27) is provided with jacks (26) with arc plates which are symmetrical up and down; the crawler crane (27) is hoisted to pile pulling construction machinery through a steel wire rope (5), the pile pulling construction machinery is provided with a tension sensor (24), a spiral rotating rod (25) and an outer steel sleeve (22), the upper part of the tension sensor (24) is connected with the top of the pile pulling construction machinery through the spiral rotating rod (25), and the lower part of the tension sensor (24) is fixed at a steel wire rope key buckling point (36) on an inner steel sleeve (23) through the steel wire rope (5); the spiral rotating rod (25) is connected with an inner steel sleeve, the inner steel sleeve (23) is connected in multiple sections, and an outer steel sleeve (22) is sleeved outside the inner steel sleeve (23).

4. The pile foundation truncation removal system of claim 3, wherein: the rotation directions of the outer steel sleeve (22) and the spiral rotating rod (25) are synchronous; the bottom end of the outer steel sleeve (22) is embedded with a titanium alloy drill bit.

5. The pile foundation truncation demolition system according to claim 1, wherein: a screw rod nut seat (31) is connected to a screw rod (30) of the jack (26) with the arc plates in the up-down symmetry mode in a threaded mode, and a connecting seat (35) is further arranged at one end of the screw rod (30); each lead screw nut seat (31) is connected with the lead screw nut seat (31) which is buckled inside in an up-and-down symmetrical manner; a supporting rod (34) positioned above the screw nut seat (31) is rotationally connected to the supporting plate (32) through a rotating shaft, and the supporting rod (34) positioned below the screw nut seat (31) is rotationally connected to the base (29) through the rotating shaft; an arc limiting plate (33) is fixedly connected below the bearing plate (32), an arc sliding groove is formed in the arc limiting plate (33), and a sliding block is connected in the arc sliding groove in a sliding mode.

6. The pile foundation truncation demolition system according to claim 1, wherein: in the auxiliary demolition device for impact of the impact hammer, an overwater working platform (37) is built on water, a winch (38) is installed on the overwater working platform (37), a rack (39) of the winch (38) is connected with the impact hammer (40) through a steel wire rope (5), and the impact hammer (40) is arranged above a steel pipe pile (41).

7. The pile foundation truncation demolition system according to claim 1, wherein: in the pile hole mixture vibration filling device, a loop bar (47) is movably connected to the end face of the fixed end of a lifting electric telescopic rod (48), a partition plate (45) is fixedly connected to the lower portion of the inner side wall of the loop bar (47), and a handle bar (46) is fixedly connected to the upper surface of the loop bar (47); the end face of the movable end of the electric telescopic rod (48) is fixedly connected with a screw rod, the outer side face of the screw rod is in threaded connection with a sliding block (44), the sliding block (44) is connected with a transmission block, the left side and the right side of the lower outer side face of the transmission block are respectively and fixedly connected with two movable plates (43), an extrusion structure (49) is arranged below the transmission block, and the extrusion structure (49) is in contact with the movable plates (43); the outer bottoms of the two movable plates (43) are provided with limit rings (42).

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