CN107217669B - Pile pulling equipment and quick moving method thereof - Google Patents

Abstract

The invention relates to pile pulling equipment and a quick moving method thereof, and belongs to the technical field of pile removal in projects such as water conservancy projects, highways, railways, municipal administration, bridges and the like. The pile pulling equipment comprises a door-type bracket, a lifting device and a workbench for installing the lifting device, wherein the door-type bracket comprises two supporting legs which are oppositely arranged and a girder group which spans a pile to be pulled, two ends of the girder group respectively fall on one supporting leg, and the workbench is fixed on the girder group; the landing leg is including locating the floor beam on the foundation, riding the base on the floor beam, the stand of fixing on the base and locating on the stand and be used for supporting the bracket of girder group one end, and the base is the tripod type base that has four column feet of supporting on the foundation. The pile pulling device and the quick moving method thereof are suitable for various space heights, occupy less working sites, and are convenient, quick and safe to move.

Description

Pile pulling equipment and its rapid movement method

Technical field

The invention relates to a pile pulling equipment and a rapid moving method thereof, and belongs to the technical field of pile removal in water conservancy, highway, railway, municipal administration, bridge and other projects.

Background technique

In the existing subway tunnel construction, the entire pile that affects the tunnel construction needs to be raised to a safe height, that is, the entire pile that affects the tunnel construction needs to be completely or partially pulled out.

According to the applicant's understanding, among the existing pile pulling equipment at home and abroad, the equipment for pulling out large piles is generally very large, the construction difficulty is obviously very difficult, the space is limited, and the risk is high; while the use of smaller equipment requires up to Large piles cannot be pulled out without construction requirements.

When using domestic and foreign pile pulling equipment to pull out piles, the ground needs to be hardened as a working platform for the pile pulling equipment. According to the applicant's understanding, when using a reaction frame to pull out piles, the site that needs to be hardened is very large and the site requirements are high. However, when actually pulling out piles, the construction is limited by the site space, etc., and the existing reaction frame cannot be pulled out. pile requirements. At the same time, when the pile pulling equipment needs to be moved, the pile pulling equipment must be disassembled and then assembled.

Contents of the invention

The technical problem to be solved by the present invention is to address the shortcomings of the existing technology and propose a pile pulling equipment and a fast moving method that are suitable for various space heights, occupy less space, and are convenient for fast and safe movement.

One of the technical solutions proposed by the present invention to solve the above technical problems is: a pile pulling equipment, which includes a portal bracket, a lifting device and a workbench for installing the lifting device. The portal bracket includes two opposite supports. The legs and the girder group across the piles to be pulled out, the two ends of the girder group respectively fall on a support leg, the workbench is fixed on the girder group; the support leg includes a ground beam located on the foundation, There is a base that rides on the ground beam, a column that is fixed on the base, and a bracket that is located on the column and used to support one end of the girder group. The base is a tripod-shaped base with four column feet supported on the foundation.

The present invention adopts the above technical solution and has the following effects: 1) By setting up a portal bracket, the legs of the portal bracket include a ground beam installed on the foundation, a base riding on the ground beam, a column fixed on the base and a The bracket is used to support one end of the girder group on the column. The girder group of the portal bracket is fixed with a workbench for the installation of the lifting device. The force transmission at each connection is simple, ensuring that the eight legs of the two bases are evenly stressed. It is suitable for various space heights, and can also quickly and safely pull out piles of different diameters. The entire device occupies less space; 2) Since there is a ground beam, the base falls on the ground beam, and the equipment on the upper part of the base is carried out by the base and the ground beam. Sharing further disperses the pressure. While the force on the ground remains unchanged, the space occupied by the equipment is greatly reduced, making full use of the principle of load diffusion.

An improvement of one of the above technical solutions is that the base includes two base beams that ride on the ground beams and are arranged oppositely, and four column feet. The four column feet are respectively provided on both sides of the ground beam and located on the ground. A connecting beam is welded between two column feet on the same side of the beam. Both ends of each base beam pass through a column foot and are welded and fixed with the column foot. The column foot is supported on the foundation and the top of the column foot is fixed. To the roof bolted to the column.

The effect of the present invention adopting the above technical solution is: 1) Since the ground beam and the base are provided, the stiffness of the ground beam is optimally matched with the stiffness of the foundation, so that the four column feet of the base are the first to transmit the load to the ground surface. After the ground surface is deformed, the increased The load is gradually distributed to the ground beam and continuously transmitted to the beam ends of the ground beam. At the same time, it is transmitted to both sides of the ground beam through the base beam of the base. The principle of load diffusion is fully utilized. The overall force is uniform and the equipment occupies The space is greatly reduced, or the floor space is fixed, and the vertical reaction force is doubled; 2) Since the base beam and column feet are integrated, the base beam only falls on the ground beam and is bolted to the column of the upper equipment. To move over longer distances, just move the two parts separately.

A further improvement of one of the above technical solutions is that a column is bolted to each column foot, and a buffer pad is provided between each column and the bracket.

A further improvement of one of the above technical solutions is that the bracket is a tic-shaped bracket composed of two bracket beams and two bracket longitudinal beams connecting the two bracket beams, and the two bracket beams of each bracket are Each end falls on a column respectively, and a support plate for supporting the girder group is fixed at the middle of the belly of each bracket beam.

One improvement of one of the above technical solutions is that a bracket for lifting the portal bracket and the lifting device is fixed at the lower part of the column foot.

The second improvement of one of the above technical solutions is that the girder group is composed of four girder pieces arranged side by side two up and two down, and the workbench is a transverse connecting member fixed between the girder groups.

The third improvement of one of the above technical solutions is that the lifting device is a through-hole jack.

The second technical solution proposed by the present invention to solve the above technical problems is: a method for quickly moving pile pulling equipment, which is used to quickly move the above pile pulling equipment, including the following steps:

1) The lifting device first removes the load, and then fixes the lifting jack on the foundation below the supporting platform of the base of each leg;

2) Use a lifting jack to hold up the pallet to lift the portal bracket and lifting device above the ground beam as a whole, and then lay a pad extending in the intended movement direction of the pile pulling equipment or run a trailer under each base. track, the backing plate is a plate with friction coefficient ≤ 0.05, and then the portal bracket and lifting device above the floor beam are lowered by the lifting jack and the base is supported on the backing plate or the base is supported on the on a trailer;

3) There are ropes fixed on the ground beam or the base respectively. By pulling the ropes, the ground beam or the base is moved to the set position along the predetermined movement direction. When the ground beam or the base is pulled to move, the base always rides on it. Above the ground beam;

4) Then once again fix the lifting jack on the foundation below the supporting platform of the base of each leg, and use the lifting jack to hold the supporting platform for the second step of the portal bracket and lifting device above the ground beam. First lift it as a whole, then pull out the pad or trailer, and then use the lifting jack to lower it as a whole to the portal bracket and lifting device above the floor beam and support the base on the foundation.

The effect of the present invention adopting the above technical solution is: 1) The ground beam or the base is directly pulled by the pulling rope to move to the set position along the predetermined movement direction, because when the ground beam or the base is pulled to move, the base always rides on the ground beam. This is very safe and ensures that the portal bracket and the lifting device can move quickly and safely as a whole; 2) This method uses a special base to drop the base on the ground beam, and the equipment on the upper part of the base is shared by the base and the ground beam, so that the pressure is further Dispersed, the space occupied by the equipment is greatly reduced while the force on the ground remains unchanged, making full use of the principle of load diffusion.

An improvement of the second technical solution is: the lifting device is a through jack or a winch.

An improvement of the second technical solution is: the foundation is a slab foundation, a box foundation, a frame foundation, a sunken foundation, a surface foundation, a steel structure foundation, a reinforced concrete foundation or a composite structure foundation.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings:

Figure 1 is a schematic structural diagram of the pile pulling equipment according to the embodiment of the present invention.

Figure 2 is a second structural schematic diagram of the pile pulling equipment according to the embodiment of the present invention.

Figure 3 is a schematic diagram of the assembly of the base and the ground beam in Figure 1.

FIG. 4 is a bottom view of FIG. 3 .

Figure 5 is a movement layout diagram of the rapid movement method of pile pulling equipment according to the embodiment of the present invention.

FIG. 6 is a left side view of FIG. 5 .

Detailed ways

Example

The pile pulling equipment of this embodiment, as shown in Figures 1 and 2, includes a portal bracket 1, a lifting device 2 and a workbench 3 for installing the lifting device. The lifting device 2 adopts a through-hole jack.

The portal bracket 1 includes two opposite supporting legs and a girder group 4 spanning the piles to be pulled out. Both ends of the girder group 4 fall on one of the supporting legs respectively, and the workbench 3 is fixed on the girder group 4.

The support legs include a ground beam 5 located on the foundation, a base 6 riding on the ground beam 5, a column 7 fixed on the base 6, and a bracket 8 located on the column and used to support one end of the girder group 4. The base 6 is A tripod-shaped base with four legs 6-2 supported on the foundation. The upright column 7 is a splicable upright column, the through-hole jack is at least one jack, and the workbench 3 is a jack platform.

As shown in Figures 3 and 4, the base 6 of this embodiment includes two base beams 6-1 that ride on the ground beam 5 and are arranged oppositely, and four column feet 6-2. The four column feet 6-2 are two A connecting beam 6-3 is welded between two column feet 6-2 respectively located on both sides of the ground beam 5 and located on the same side of the ground beam. Both ends of each base beam 6-1 pass through a column foot 6 -2 and are welded and fixed with the column foot. The column foot 6-2 is supported on the foundation and the top of the column foot is fixed with a top plate 6-4 for bolt connection with the column 7. In this embodiment, each column foot 6 - 2 is bolted and fixed with a column 7 , and a buffer pad is provided between each column 7 and the bracket 8 .

The beam set 4 is composed of four beams arranged side by side, two up and two down. The workbench 3 is a transverse connecting piece fixed between the beam sets 4. Girder group 4 can be optimized to form composite beams, fish-belly beams and other forms with strong bearing capacity, which can reduce on-site lifting requirements and make the commonly used 15-ton or 25-ton cranes suitable for current work, which is more beneficial.

The ground beam 5 is a ground beam composed of a steel box beam or an I-shaped steel, and the column foot 6-2 is a cylindrical column foot.

A pallet 6-5 for lifting the portal bracket 1 and the lifting device 2 is fixed at the lower part of the column foot 6-2.

The bracket 8 is a tic-shaped bracket composed of two bracket beams and two bracket longitudinal beams connecting the two bracket beams. The two ends of each bracket beam fall on a column 7 respectively. A support plate for supporting the girder group 4 is fixed at the middle part of the web of the frame cross beam.

As shown in Figures 5 and 6, the method for quickly moving pile pulling equipment in this embodiment is used to quickly move the above pile pulling equipment, including the following steps:

1) The lifting device 2 first removes the load, and then fixes the lifting jack 9 on the foundation below the bracket 6-5 of the base 6 in each leg;

2) Use the lifting jack 9 to hold up the supporting platform 6-5 to lift the portal bracket 1 and the lifting device 2 above the ground beam 5 as a whole, and then lay a strip under each base 6 along the predetermined movement direction of the pile pulling equipment. The extended pad 10 or the track with a trailer (not shown in the figure), the pad 10 is a plate with a friction coefficient ≤ 0.05, and then the portal bracket 1 above the floor beam 5 is lowered by the lifting jack 9 and lifted Device 2 and support the base 6 on the pad 10 or support the base 6 on the trailer;

3) A rope is fixed on the ground beam 5 or the base 6 respectively. By pulling the rope, the ground beam 5 or the base 6 is pulled to move to the set position along the predetermined movement direction. When the ground beam 5 or the base 6 is pulled to move, the base 6 Always ride above ground beam 5;

4) Then once again fix the lifting jack 9 on the foundation below the supporting platform 6-5 of the base 6 in each leg, and use the lifting jack 9 to withstand the supporting platform 6-5 to carry out lifting above the ground beam. The portal bracket 1 and the lifting device 2 are lifted as a whole for the second time, and then the pad 10 or the trailer is pulled out, and then the portal bracket 1 and the lifting device 2 above the floor beam are lowered as a whole through the lifting jack 9 and the base 6 is lifted. Supported on foundation.

In the quick moving method of pile pulling equipment in this embodiment: the lifting device 2 is a through jack or a winch. The foundation is a slab foundation, a box foundation, a frame foundation, a sunken foundation, a surface foundation, a steel structure foundation, a reinforced concrete foundation or a composite structure foundation, etc.

The present invention is not limited to the above-described embodiment. All technical solutions formed by using equivalent substitutions fall within the protection scope required by the present invention.

Claims (3)

1. The pile pulling equipment comprises a door-shaped bracket, a lifting device and a workbench for mounting the lifting device, wherein the door-shaped bracket comprises two supporting legs which are oppositely arranged and a girder group which spans a pile to be pulled, two ends of the girder group respectively fall on one supporting leg, and the workbench is fixed on the girder group; the support leg comprises a ground beam arranged on a foundation, a base riding on the ground beam, a stand column fixed on the base and a bracket arranged on the stand column and used for supporting one end of the girder group, the base is a tripod type base with four column feet supported on the foundation,

the method is characterized by comprising the following steps of:

1) The lifting device firstly removes load, and then fixes the lifting jack on the foundation below the supporting table of the base in each supporting leg;

2) The lifting jack is used for supporting the supporting table to integrally lift the door-shaped support and the lifting device above the ground beam, then a base plate extending along the preset moving direction of the pile pulling equipment or a track running with a trailer is paved below each base, the base plate is a plate with the friction coefficient less than or equal to 0.05, and then the lifting jack integrally falls down the door-shaped support and the lifting device above the ground beam to support the base on the base plate or the trailer;

3) Ropes are respectively fixed on the ground beam or the base, the ground beam or the base is respectively pulled to move to a set position along a preset moving direction by pulling the ropes, and when the ground beam or the base is pulled to move, the base always rides on the ground beam;

4) Then fixing the lifting jack on the foundation below the supporting platform of the base in each supporting leg again, supporting the supporting platform through the lifting jack to carry out second integral lifting of the door-shaped support and the lifting device above the ground beam, then withdrawing the base plate or the trailer, and integrally falling the door-shaped support and the lifting device above the ground beam through the lifting jack and supporting the base on the foundation.

2. A method of rapidly moving pile pulling apparatus according to claim 1, wherein: the lifting device is a penetrating jack or a winch.

3. A method of rapidly moving pile pulling apparatus according to claim 1, wherein: the foundation is a slab foundation, a box foundation, a frame foundation, a sunk foundation, a ground surface type foundation, a steel structure foundation, a reinforced concrete foundation or a combined structure foundation.