CN219033207U

CN219033207U - Gravel pile construction equipment

Info

Publication number: CN219033207U
Application number: CN202223277975.8U
Authority: CN
Inventors: 龚秀刚; 闻卫东; 杨路; 胡甲磊
Original assignee: Shanghai Engineering Machinery Co Ltd
Current assignee: Shanghai Engineering Machinery Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-16
Anticipated expiration: 2032-12-07

Abstract

The construction equipment for the gravel pile comprises a travelling pile frame, a vibrating hammer, a pile pipe with a feed inlet and a feed door and a hopper; the vibrating hammer is fixedly arranged above the pile pipe; the feeding hole is arranged in the middle of the pile pipe, the bottom of the pile pipe is provided with a drill tip plate and a discharging door, the feeding door is arranged on the inner wall of the position where the pile pipe is communicated with the feeding hole, and the inner cavity of the feeding hole is provided with a jacking cylinder connected with the feeding door; adding crushed stone into the feed inlet through the hopper; the outer wall of the pile pipe is provided with a left air inlet pipe, a right air inlet pipe and an upper air inlet pipe, and the piled crushed stone in the inner cavity of the pile pipe is inflated and pressurized; the pressure sensor and the exhaust valve are used for detecting and releasing the gas pressure in the inner cavity of the pile tube. The material level gauge is used for detecting the level of broken stone put into the inner cavity of the pile pipe. The utility model inflates and pressurizes the inside of the pile pipe through the gas filling pipe on the side wall of the pile pipe, breaks up and deposits broken stone, enables the broken stone to smoothly fall into a stratum, monitors the broken stone height of the material level gauge on the top of the pile pipe in real time, controls the broken stone quantity entering the stratum, ensures pile forming quality and improves construction efficiency.

Description

Gravel pile construction equipment

Technical Field

The utility model relates to the field of pile foundation engineering, in particular to gravel pile construction equipment, which is suitable for construction of gravel piles in a silt layer and a viscous soil layer.

Background

The soft soil foundation is a foundation formed by a compression layer mainly comprising silt, mucky soil, impact filling soil, miscellaneous filling soil or other high-pressure compression soil layers, and is widely distributed in China, particularly in the southeast coastal area. In order to improve the bearing capacity of the soft soil foundation and the liquefaction resistance requirement, the prior art adopts a composite foundation reinforced pile made of gravels (pebbles) as main materials, a pile pipe is driven into the ground through a vibrating hammer, and the gravels fall into a stratum from a bottom discharge hole after entering the pile pipe.

Disclosure of Invention

The utility model provides gravel pile construction equipment, which is used for pressurizing the inside of a pile pipe through a gas adding pipe on the side wall of the pile pipe, so that accumulated gravel in the inner cavity of the pile pipe is easier to fall and shake into a stratum, a level gauge positioned at the top of the pile pipe is used for monitoring the height of the fed gravel in real time, the quantity of the gravel entering the stratum is effectively controlled, and the pile forming quality of the gravel pile is ensured.

In order to achieve the above object, the solution adopted by the present utility model is:

the utility model provides a gravel pile construction equipment, includes walking stake frame, the vibratory hammer that contains host computer chassis, mast, contains stake pipe, the hopper of feed inlet, feed gate, its characterized in that: the bottom of the vibrating hammer is fixedly provided with a pile pipe, and the vibrating hammer is arranged on a mast of the travelling pile frame and is connected with a steel cable led out from a chassis of the host; the feeding hole of the pile pipe is arranged in the middle of the pile pipe, the bottom of the pile pipe is provided with a drill point plate and a discharge door, the feeding door is arranged on the inner wall of the position, which is communicated with the feeding hole, of the pile pipe, the outer side of the feeding hole is provided with a jacking cylinder hinged with the feeding door, the feeding door is opened through the jacking cylinder to throw broken stone into the inner cavity of the pile pipe, and the feeding door is provided with a rubber sealing plate to prevent air leakage after the feeding hole is closed; after the pile pipe is vibrated along with the vibrating hammer and is submerged into the underground to a required depth, crushed stone is added into the feed inlet through the hopper; the outer wall of the pile pipe is provided with a left air inlet pipe, a right air inlet pipe and an upper air inlet pipe, and crushed stone in the pile pipe is inflated and pressurized.

Preferably, a rubber sealing plate is arranged on the feeding door to prevent the feeding port from air leakage after the inner wall of the pile pipe is closed;

preferably, the air inlets of the upper air inlet pipe and the left air inlet pipe and the right air inlet pipe on the pile pipe are arranged at intervals in the axial direction and the radial direction of the upper air inlet pipe and the left air inlet pipe and are used for layering, inflating and pressurizing the inner cavity of the pile pipe, so that broken stones can fall loose conveniently.

Preferably, the upper part of the pile pipe is respectively provided with a pressure sensor and an exhaust valve for detecting the gas pressure in the inner cavity of the pile pipe and releasing the gas pressure in the inner cavity of the pile pipe.

Preferably, a level gauge is arranged at the upper part of the inner cavity of the pile pipe and is used for detecting the accumulation height of broken stone put into the inner cavity of the pile pipe.

The utility model has the beneficial effects that the plurality of air inlet pipes arranged on the side wall of the pile pipe inject high-pressure air into the inner cavity of the pile pipe through the air inlets arranged at intervals, the high-pressure air carries out multi-level pressurization on broken stone in the inner cavity of the pile pipe, and the broken stone is smoothly fallen down after being dispersed and enters the stratum through the discharge door; the material level gauge positioned on the upper part of the pile pipe can monitor the stacking height of broken stone in real time, so that the broken stone quantity entering into a stratum can be conveniently controlled, the pile forming quality of the broken stone pile is effectively ensured, and the working efficiency of the broken stone pile is further improved.

Drawings

FIG. 1 is a schematic view of the construction equipment of the gravel pile of the present utility model;

FIG. 2 is a schematic view of the pile tube according to the present utility model;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a partial cross-sectional view of portion A of FIG. 3;

wherein: the device comprises a 1-walking pile frame, a 11-main machine chassis, a 12-mast, a 2-vibrating hammer, a 22-bottom flange, a 3-hopper, a 4-pile pipe, a 42-jacking cylinder, a 43-feeding door, a 45-feeding port, a 47-discharging door, a 48-drill tip plate, 51' -left and right air inlet pipes, a 52-upper air inlet pipe, a 66-level gauge, a 77-exhaust valve, 99-broken stone and a 10-pressure sensor.

Detailed Description

As shown in fig. 1-4, a gravel pile construction device comprises a travelling pile frame 1, a vibrating hammer 2, a pile pipe 4 with a feed inlet 45 and a feed gate 43, and a hopper 3, and is characterized in that: the vibrating hammer 2 is fixedly arranged on the upper end of the pile pipe 4 through a bottom flange 22, is arranged on a guide rail of a mast 12 of the travelling pile frame 1 through a guide plate arranged on the back, and is connected with the vibrating hammer 2 through a steel cable led out by a winch arranged on a main machine chassis 11; the feeding hole 45 of the pile pipe 4 is arranged in the middle of the pile pipe 4, the bottom of the pile pipe 4 is provided with inclined holes, the drill tip plate 48 is welded on the sharp corners where the two inclined holes intersect, the two discharging doors 47 are arranged on the drill tip plate 48 through hinges and then turn around the drill tip plate 48, when the pile pipe 4 is vibrated and sunk, the two discharging doors 47 cover the two inclined holes at the bottom of the pile pipe 4 upwards, and broken stone 99 in the inner cavity of the pile pipe 4 is effectively prevented from falling; the drill tip plate 48 can reduce the resistance of soil to the pile tube 4 when the pile tube 4 is vibrated and sunk into the ground, so that the earth breaking capacity of the pile tube 4 is improved; the feeding door 43 turns around the lower end when the inner wall of the pile tube 4 is arranged, piston rods of two jacking cylinders 42 positioned at the outer side of the feeding hole 45 are connected with the upper part of the feeding door 43 through a connecting rod mechanism, the jacking cylinders 42 are controlled to push the connecting rod mechanism to open the feeding door 43, then crushed stones 99 enter the inner cavity of the pile tube 4, a rubber sealing plate is arranged at the outer edge of the feeding door 43, air leakage is prevented after the feeding hole 45 is closed, and sealing of the input air of the inner cavity of the pile tube 4 is ensured; the hopper 3 is arranged on a guide rail of a mast 12 of the travelling pile frame 1 through a guide plate 33 arranged on the outer side of the hopper, and is connected through a steel cable led out by a winch arranged on a main machine chassis 10 and then runs up and down, so that the feeding and lifting functions of broken stones 99 are met; the other ends of the left and right air inlet pipes 51 and 51' and the upper air inlet pipe 52 arranged on the outer wall of the pile pipe 4 are connected with an external air source, the air inlets on the pile pipe 4 are arranged at certain intervals, and the external air source divides the accumulated broken stone 99 into an upper section, a middle section and a lower section after entering the inner cavity of the pile pipe 4, pressurizes and breaks away the broken stone 99 and then smoothly falls.

The level gauge 66 is fixedly arranged on a bracket at the upper part of the inner cavity of the pile pipe 4 through bolts, and is connected with a monitoring system of the gravel pile construction equipment through a cable, so that the descending condition of the broken stone 99 in the inner cavity of the pile pipe 4 can be effectively observed, and the height of the broken stone 99 in the inner cavity of the pile pipe 4 can be immediately fed back and displayed on a display screen of the monitoring system.

When the winch of the travelling pile frame 1 is operated to lift the vibrating hammer 2 and the pile pipe 4 upwards, the lowering condition of broken stone 99 in the inner cavity of the pile pipe 4 can be observed through the level gauge 66 at the upper part of the inner cavity of the pile pipe 4, so that the pile forming quality of the broken stone pile is further ensured. When the pressure in the inner cavity of the pile tube 4 needs to be released, the exhaust valve 77 can be opened to release the air pressure in the inner cavity of the pile tube 4.

Working principle: when the utility model is used, the installation and the debugging of the vibrating hammer 2, the pile pipe 4, the hopper 3 and the walking pile frame 1 are completed, the vibrating hammer 2 is driven by the control system, the pile pipe 4 is vibrated along with the vibrating hammer 2 to sink into the ground, and the drill point plate 48 at the front end of the pile pipe 4 is contacted with the ground to position a pile hole; as the pile pipe 4 continues to vibrate and sink, the two unloading doors 47 automatically close the pile pipe 4 upwards under the action of soil reaction force, the hoisting hopper 3 pours broken stone 99 into the feed inlet 45, and the broken stone 99 slowly piles up after entering the inner cavity of the pile pipe 4 through the feed doors 13; when the broken stone 99 is accumulated to a certain amount in the inner cavity of the pile pipe 4, the jacking cylinder 12 is controlled to close the feeding door 13; when the pile tube 4 is vibrated and sunk to reach the designed elevation, crushed stone 99 is fed, an external air source simultaneously charges air and pressurizes the inner cavity of the pile tube 4 through the left air inlet pipe 51, the right air inlet pipe 51' and the upper air inlet pipe 52, and the air pressure of the inner cavity of the pile tube 4 is monitored in real time through the pressure sensor 10; in the process that the pile pipe 4 continuously vibrates downwards along with the vibrating hammer 2 and sinks into the ground, the left and right air inlet pipes 51 and 51' and the upper air inlet pipe 52 continuously aerate and pressurize broken stones 99 in the inner cavity of the pile pipe 4 to reach the required pressure; when the pressure sensor 10 detects that the pressure in the inner cavity of the pile tube 4 reaches 0.4-0.5MPa, a winch on a main chassis 11 of the travelling pile frame 1 is controlled to tighten a steel wire rope, the vibrating hammer 2 and the pile tube 4 are lifted upwards, meanwhile, the vibrating hammer 2 is driven to operate, two discharging doors 47 at the front end of the pile tube 4 are automatically opened along with the vibrating hammer, and broken stones 99 accumulated in the inner cavity of the pile tube 4 smoothly fall into the ground under the action of dead weight and the air pressure in the inner cavity of the pile tube 4. Along with the continuous lifting of the pile pipe 4, broken stones 99 in the inner cavity of the pile pipe 4 are all vibrated into the ground, and the pile sinking of the broken stone pile is completed after the pile pipe 4 is pulled out.

The foregoing has shown and described the basic principles and main features and advantages of the present utility model. The present utility model is not limited to the above-described embodiments, and the above-described embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a gravel pile construction equipment, includes walking stake frame (1) that contains host computer chassis (11), mast (12), vibratory hammer (2), contains stake pipe (4), hopper (3) of feed inlet (45), feed gate (43), its characterized in that: the bottom of the vibrating hammer (2) is fixedly provided with a pile pipe (4), and the vibrating hammer is arranged on a mast (12) of the travelling pile frame (1) and is connected with a steel cable led out from a main machine chassis (11); the feeding hole (45) of the pile pipe (4) is arranged in the middle of the pile pipe (4), the bottom of the pile pipe (4) is provided with a drill tip plate (48) and a discharge door (47), the feeding door (43) is arranged on the inner wall of the position where the pile pipe (4) and the feeding hole (45) are communicated, the outer side of the feeding hole (45) is provided with a jacking cylinder (42) hinged with the feeding door (43), the feeding hole (43) is opened through the jacking cylinder (42) to throw crushed stone (99) into the inner cavity of the pile pipe (4), and after the pile pipe (4) is vibrated to sink into the underground along with the vibratory hammer (2), the crushed stone (99) is added into the feeding hole (45) through the hopper (3); the outer wall of the pile tube (4) is provided with left and right air inlet pipes (51, 51') and an upper air inlet pipe (52) to charge and pressurize broken stone (99) in the inner cavity of the pile tube (4).

2. The gravel pile construction equipment according to claim 1, characterized in that a rubber sealing plate is arranged on the feeding door (43) to prevent the air leakage of the feeding port (45) after the inner wall of the pile pipe (4) is closed.

3. The gravel pile construction equipment according to claim 1, characterized in that the air inlets of the upper air inlet pipe (52) and the left and right air inlet pipes (51, 51') on the pile pipe (4) are arranged at intervals in the axial and radial directions of the air inlets, and are used for layering inflation and pressurization of the inner cavity of the pile pipe (4) so as to facilitate loose falling of the gravel (99).

4. The gravel pile construction equipment according to claim 1, characterized in that the upper part of the pile pipe (4) is provided with a pressure sensor (88) and an exhaust valve (77), respectively, for detecting the gas pressure in the inner cavity of the pile pipe (4) and releasing the gas pressure in the inner cavity of the pile pipe (4).

5. The gravel pile construction equipment according to claim 1, characterized in that the upper part of the inner cavity of the pile pipe (4) is provided with a level gauge (66) for detecting the pile height of the gravel (99) in the inner cavity of the pile pipe (4).