CN215857703U

CN215857703U - Assembled static pressure pile driver

Info

Publication number: CN215857703U
Application number: CN202122180019.7U
Authority: CN
Inventors: 许张狄; 沈松烨; 张梦华; 顾晋源; 谢洪
Original assignee: Shanghai Pudong New Area Construction Group Co ltd
Current assignee: Shanghai Pudong New Area Construction Group Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-18
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses an assembled static pressure pile driving device which comprises two groups of reaction frames and a pile frame girder arranged at the top of the two groups of reaction frames, wherein the pile frame girder is provided with a hoisting structure, the pile frame girder is connected with a static pressure girder through the hoisting structure, each group of reaction frames comprises two reaction force adjusting frames, a steel bolt is inserted between the two reaction force adjusting frames of each group of reaction frames, the end part of the static pressure girder is placed on the steel bolts of the two groups of reaction frames, a jack is arranged below the static pressure girder, and the jack is arranged on a pile foundation to be driven through a steel base plate. The reaction frame and the pile frame girder adopt a prefabricated assembly structure, can be manufactured and assembled according to the actual construction requirement, and are small in structure and convenient to install; the anchor rods are arranged to be pre-embedded to prevent overturning, so that the reaction frame structure is more stable and reliable; an electric hoist is arranged on the pile frame girder to lift the static pressure girder and simultaneously serve as an external force source for pile foundation in-place; the pile foundation can be used for pile foundations of different types and is widely applied.

Description

Assembled static pressure pile driver

Technical Field

The utility model relates to a piling device, in particular to an assembled static pressure piling device.

Background

Piling refers to driving piles into the ground to make the building foundation firm. Because the ground building is built on the ground and the ground is subjected to a large pressure, the ground must have sufficient strength against the pressure, which is difficult to achieve, and therefore, the ground bearing the building must be reinforced or the bearing mode of the ground is improved, so that the pile needs to be driven on the foundation, most of the weight of the building is transmitted to a position deep below the ground through the pile, and the foundation can bear a larger capacity than the ground.

The overpass is widely applied to urban traffic, and the road surface width of the existing overpass cannot meet the traveling requirements of the periphery due to the early construction of the existing overpass, so the overpass needs to be spliced to increase the road surface width of the overpass. The width increasing part needs piling to increase the bearing capacity, and because the existing part of the overpass is low in height, the lowest net height is only two meters, the height of a pile foundation and the height of a piling operation part during operation are added, the construction height required by the existing piling equipment is more than two meters, and the existing piling equipment is not suitable for being used in a low overpass space. Therefore, there is a need for an assembled static pile driving apparatus that can perform static pile driving and reduce the height of the pile driving operation member during operation, so that the apparatus is suitable for low-grade interchange pile driving operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an assembled static pressure piling device, which solves the problems that the existing piling equipment needs larger construction height and is not suitable for the use of a low overpass space.

The technical scheme adopted by the utility model for solving the technical problems is to provide an assembled static pressure pile driving device, which comprises two groups of reaction frames and a pile frame girder arranged at the top of the two groups of reaction frames, wherein the pile frame girder is provided with a hoisting structure, the pile frame girder is connected with a static pressure girder through the hoisting structure, each group of reaction frames comprises two reaction force adjusting frames, a steel bolt is inserted between the two reaction force adjusting frames of each group of reaction frames, the end part of the static pressure girder is placed on the steel bolts of the two groups of reaction frames, a jack is arranged below the static pressure girder, the jack is arranged on a pile foundation to be driven through a steel base plate, the top of the jack is abutted against the static pressure girder, and the bottom of the jack is abutted against the steel base plate.

Further, two sets of reaction frames are respectively arranged at two ends of the pile hole, and the pile frame girder is erected at the tops of the two sets of reaction frames, so that the pile frame girder is positioned right above the pile hole.

Furthermore, a bottom plate is poured around the pile hole, an anchor rod is embedded in the bottom plate, and the counter force adjusting frame is fixed to the bottom plate through the anchor rod.

Furthermore, the counter force adjusting frame comprises a fixed bottom frame and an adjusting top frame, a plurality of adjusting holes are formed in the fixed bottom frame, fixing holes are formed in the bottom end of the adjusting top frame, and the bottom end of the adjusting top frame is fixedly connected with the fixed bottom frame through bolt assemblies inserted into the adjusting holes and the fixing holes; the height of the counterforce adjusting frame is adjusted by adjusting the position of the adjusting hole connected with the bolt.

Furthermore, a plurality of steel bolt inserting holes are formed in the upper portion of the adjusting top frame at equal intervals along the length direction, the steel bolts are inserted into the steel bolt inserting holes corresponding to the adjusting top frames of the reaction force adjusting frames in the same group, and the placing height of the static pressure crossbeam is adjusted by adjusting the positions of the steel bolt inserting holes into which the steel bolts are inserted.

Further, a plurality of steel pins are inserted into each steel pin insertion hole.

Further, hoisting structure is electric block, electric block is connected with the wire rope lifting hook.

Compared with the prior art, the utility model has the following beneficial effects: the assembled static pressure piling device provided by the utility model has the following advantages: 1. the prefabricated assembly structure is adopted, assembly can be carried out according to actual construction requirements, the device is small and exquisite, convenient to install and suitable for being used in a space with limited height; 2. the steel base plate under the jack can effectively protect the appearance of the pile structure from being damaged; 3. the anchor rods are arranged to be pre-embedded to prevent overturning, so that the reaction frame structure is more stable and reliable; 4. the parts are connected by bolts, so that the assembly and disassembly are convenient; 5. an electric hoist is arranged on the pile frame girder, so that the static pressure girder can be lifted, and the pile frame girder can be used as an external force source for positioning a pile foundation; 6. the pile foundation can be used for pile foundations of different types and is widely applied.

Drawings

Fig. 1 is a schematic structural diagram of a fabricated static pressure piling device according to an embodiment of the utility model;

FIG. 2 is a schematic view of a static pressure girder and a reaction frame according to an embodiment of the utility model;

FIG. 3 is a schematic structural view of a reaction force adjusting bracket according to an embodiment of the utility model.

In the figure:

1. a counter-force adjusting bracket; 2. a pile frame girder; 3. a static pressure girder; 4. a jack; 5. a steel backing plate; 6. an anchor rod; 7. a steel bolt; 8. a pile foundation; 11. adjusting the top frame; 12. fixing the underframe; 13. the steel bolt is inserted into the hole.

Detailed Description

The utility model is further described below with reference to the figures and examples.

FIG. 1 is a schematic structural diagram of a fabricated static pressure piling device according to an embodiment of the utility model; fig. 2 is a schematic view of the installation of the static pressure crossbeam and the reaction frame according to the embodiment of the utility model.

Referring to fig. 1 and 2, the fabricated static pressure pile driving device according to the embodiment of the utility model includes two sets of reaction frames and a pile frame girder 2 arranged at the top of the two sets of reaction frames, the pile frame girder 2 is provided with a hoisting structure, the pile frame girder 2 is connected with a static pressure girder 3 through the hoisting structure, each set of reaction frame includes two reaction force adjusting frames 1, a steel bolt 7 is inserted between the two reaction force adjusting frames 1 of each set of reaction frame, the end of the static pressure girder 3 is placed on the steel bolts 7 of the two sets of reaction frames, a jack 4 is arranged below the static pressure girder 3, the jack 4 is arranged on a pile foundation 8 to be driven through a steel base plate 5, the top of the jack 4 is abutted against the static pressure girder 3, and the bottom is abutted against the steel base plate 5.

Specifically, two sets of reaction frames are respectively arranged at two ends of the pile hole, and the pile frame girder 2 is erected at the tops of the two sets of reaction frames, so that the pile frame girder 2 is positioned right above the pile hole. A bottom plate is poured around the pile hole, an anchor rod 6 is embedded in the bottom plate, and the counter force adjusting frame 1 is fixed to the bottom plate through the anchor rod 6.

Specifically, hoisting structure is electric block, and electric block is connected with the wire rope lifting hook. The electric hoist can also hoist the pile foundation 8 through the hoisting structure before connecting the static pressure girder 3 through the wire rope lifting hook.

Referring to fig. 3, in the assembled static pressure piling device according to the embodiment of the present invention, the reaction force adjusting frame 1 includes a fixed base frame 12 and an adjusting top frame 11, a plurality of adjusting holes are formed in the fixed base frame 12, a fixing hole is formed at the bottom end of the adjusting top frame 11, and the bottom end of the adjusting top frame 11 is fixedly connected to the fixed base frame 12 through a bolt assembly inserted into the adjusting hole and the fixing hole; the height of the counterforce adjusting frame 1 is adjusted by adjusting the position of the adjusting hole connected with the bolt.

Specifically, a plurality of steel bolt insertion holes 13 are formed in the upper portion of the adjusting top frame 11 at equal intervals in the length direction, the steel bolts 7 are inserted into the steel bolt insertion holes 13 corresponding to the adjusting top frames 11 of the reaction force adjusting frames 1 in the same group, and the placement height of the static pressure girder 3 is adjusted by adjusting the positions of the steel bolt insertion holes 13 into which the steel bolts 7 are inserted. A plurality of steel bolts 7 are inserted into each steel bolt insertion hole 13, so that the structure is firmer.

In a specific embodiment, the height of the steel base plate 5 is 250mm, the height of the jack 4 is 450mm, the height of the static pressure girder 3 is 600mm, the height of the steel wire rope hook is 100mm, and the height of the pile frame girder 2 is 150 mm; the operating height of the part was 1500 mm. The diameter of the pre-buried anchor rod 6 is phi 32mm, and the material of the reaction frame and the pile frame girder 2 is Q345Qd structural steel. The pile foundation 8 may be a steel pipe pile or a prefabricated concrete pile.

When the assembled static pressure piling device provided by the embodiment of the utility model is actually used, the concrete operation steps are as follows:

step 1: binding basic steel bars, pouring a bottom plate, and embedding an anchor rod 6 in the bottom plate;

step 2: after the strength of the concrete of the bottom plate reaches the grade, a counter-force adjusting frame 1 is installed, and the bottom of the counter-force adjusting frame 1 is connected with an embedded anchor rod 6 through a bolt;

and step 3: an electric hoist on the pile frame girder 2 lifts and positions the pile foundation 8 in a binding mode;

and 4, step 4: adjusting the pile foundation 8 to the position of the pile hole, and placing a steel base plate 5 at the position of the pile head at the top of the pile foundation 8;

and 5: erecting the static pressure girder 3 to a set height by using an electric hoist, inserting a steel bolt 7 into a steel bolt insertion hole 13 with a corresponding height, and placing the static pressure girder 3 on the steel bolt 7;

step 6: a jack 4 is arranged between the static pressure girder 3 and the steel backing plate 5;

and 7: and (3) starting the jack 4, statically pressing the pile foundation 8, moving the pile foundation 8 downwards, moving the steel bolt 7 into the next steel bolt insertion hole 13, hoisting the static pressure girder 3 downwards to the steel bolt 7 to continue static pressure until the pile foundation 8 can not move downwards, and finishing piling.

In conclusion, in the fabricated static pressure pile driving device, the reaction frame and the pile frame girder 2 adopt a prefabricated assembly structure, can be manufactured and assembled according to actual construction requirements, and is small, exquisite, convenient to install and suitable for being used in a space with limited height; the steel backing plate 5 below the jack 4 can effectively protect the appearance of the pile structure; the anchor rods 6 are pre-embedded to prevent overturning, so that the reaction frame structure is more stable and reliable; an electric hoist is arranged on the pile frame girder 2, so that the static pressure girder 3 can be lifted, and the electric hoist can be used as an external force source for the pile foundation 8 to be in place; can be used for different types of pile foundations 8 and has wide application.

Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an assembled static pressure pile driver device, its characterized in that includes two sets of reaction frames and sets up the pile frame girder at two sets of reaction frame tops, the pile frame girder is provided with hoisting structure, the pile frame girder is connected with the static pressure girder through hoisting structure, every group the reaction frame includes two reaction force adjustment framves, every group insert between two reaction force adjustment framves of reaction frame and be provided with the steel bolt, the steel bolt of placing at two sets of reaction frames is placed to the tip of static pressure girder, static pressure girder below is provided with the jack, the jack passes through the steel backing plate and sets up on the pile foundation of waiting to beat, the top and the static pressure girder butt of jack, bottom and steel backing plate butt.

2. The fabricated static pressure piling device of claim 1 wherein two sets of said reaction frames are disposed at opposite ends of the pile hole, respectively, and said pile frame girders are erected at the tops of the two sets of reaction frames such that said pile frame girders are positioned directly above the pile hole.

3. The fabricated static pressure piling device of claim 2 wherein a base plate is cast around the pile hole, anchor rods are embedded in the base plate, and the reaction force adjusting frame is fixed to the base plate through the anchor rods.

4. The fabricated static pressure piling device as recited in claim 1, wherein the reaction force adjusting frame comprises a fixed underframe and an adjusting top frame, the fixed underframe is provided with a plurality of adjusting holes, the bottom end of the adjusting top frame is provided with a fixing hole, and the bottom end of the adjusting top frame is fixedly connected with the fixed underframe through a bolt assembly inserted into the adjusting holes and the fixing hole; the height of the counterforce adjusting frame is adjusted by adjusting the position of the adjusting hole connected with the bolt.

5. An assembled static pressure piling device as set forth in claim 4 wherein a plurality of steel bolt insertion holes are formed in the upper portion of said adjusting top frame at equal intervals in the longitudinal direction, said steel bolts are inserted into the steel bolt insertion holes provided in the adjusting top frames of the reaction force adjusting frames of the same group, and the placement height of said static pressure beams is adjusted by adjusting the positions of the steel bolt insertion holes into which said steel bolts are inserted.

6. An assembled static pressure piling device as set forth in claim 5 wherein a plurality of steel pins are inserted into each of said steel pin insertion holes.

7. An assembled static pressure piling device as set forth in claim 1 wherein said lifting structure is an electric block with a wire rope hook attached thereto.