CN216197846U

CN216197846U - Drilling equipment is used in construction of hard sand bed steel cofferdam of rich water of high infiltration

Info

Publication number: CN216197846U
Application number: CN202122742383.8U
Authority: CN
Inventors: 贺晓鹏; 高森; 刘海军; 王锁利; 骆岗; 虞世荣
Original assignee: CCCC Second Railway Construction Co Ltd
Current assignee: CCCC Second Railway Construction Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-04-05
Anticipated expiration: 2031-11-10

Abstract

The utility model belongs to the technical field of geotechnical engineering, and particularly relates to a drilling device for high-permeability water-rich hard sand layer steel cofferdam construction. This drilling equipment is used in construction of rich water hard sand bed steel cofferdam of high infiltration, through setting up the lower surface mounting level device at the hoist and mount seat, utilize the horizontal base among the level device to contact with ground all the time, be connected with external control ware through four proximity switches with horizontal base surface, make during horizontal base and ground horizontal contact, four proximity switches are triggered simultaneously, and then confirm that horizontal base keeps the level, and because horizontal base passes through the hoist and mount seat and the puncher body is connected the maintenance, make and ensure that the puncher body keeps the level, thereby make to have the characteristics of being convenient for monitor drilling equipment horizontal work.

Description

Drilling equipment is used in construction of hard sand bed steel cofferdam of rich water of high infiltration

Technical Field

The utility model relates to the technical field of geotechnical engineering, in particular to a drilling device for high-permeability water-rich hard sand layer steel cofferdam construction.

Background

As shown in fig. 1, a high water-rich sand layer is encountered in the subway construction process, and a steel cofferdam is often used for supporting a foundation pit in the excavation process of the foundation pit of the stratum, so that the damage of the foundation pit caused by the phenomena of quicksand inrush and the like caused by the water seepage of the foundation pit can be avoided; in the construction process of the steel cofferdam, a hard soil layer is encountered in the deep soil range of the steel plate entering the soil, and the occurrence of the hard layer can influence the steel plate of the steel cofferdam to continuously press into the soil, so that when the steel cofferdam encounters an underlying hard soil layer and cannot continuously enter the soil, the hard layer needs to be drilled, and the continuous pressing of the steel plate is ensured;

when the existing drilling device is used, because a steel plate for building the rigid cofferdam needs to be vertically pressed, the vertical drilling on the ground needs to be kept, namely, the drilling part at the lower end of the drilling machine needs to be kept vertical when the drilling machine works, and therefore the drilling device is convenient to use.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that the lower end of a perforating machine cannot be conveniently drilled vertically by the conventional drilling equipment, the utility model provides a drilling device for high-permeability water-rich hard sand layer steel cofferdam construction.

The drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam comprises an occluded steel plate drilling machine, a vibration hammer, a crane, a precipitation device, a hoisting seat and a drilling machine body, wherein the driving end of the drilling machine body is installed inside the hoisting seat, a horizontal device is installed on the lower surface of the hoisting seat and comprises a horizontal base, the horizontal device is used for carrying out horizontal detection on the drilling machine body through the horizontal base, meanwhile, a proper drilling rod at the lower end of the drilling machine body is selected according to the actual length of a single steel plate of the steel cofferdam and is replaced, and the joint between the upper end of the drilling rod and the drilling machine body can be divided into a male joint and a female joint which are connected to two ends of a drilling rod body. For the joint strength who strengthens the joint, need increase the wall thickness of body at the joint position, can divide into according to the mode of thickening: three forms of internal thickening, external thickening and internal and external thickening. The joint is provided with threads for connecting the threads of each drill rod joint, the threads are conical pipe threads with sealing shoulders, the shoulder surfaces are screwed to play a sealing role, and the threads only play a connecting role.

Preferably, the upper surface of the horizontal base is fixedly connected with a telescopic rod, the upper end of the telescopic rod is fixedly connected with the lower surface of the hoisting seat, and the outer surface of the horizontal base is fixedly connected with a proximity switch;

through above-mentioned technical scheme, utilize the telescopic link to connect hoist and mount seat and horizontal base, the hoist and mount seat can avoid pressing the horizontal base when going down along with punching deeply, is convenient for the lower extreme drilling rod of the puncher body of multiple specification simultaneously, and the length of telescopic link is moderate to the accessible is changed the telescopic link and is used when the drilling rod specification surpasss, and the upper end and the lower extreme connected mode of telescopic link are the bolt installation.

Preferably, the upper surface of the horizontal base is provided with a hole punching cavity, the axis of the hole punching cavity and the axis of the lower end of the puncher body are on the same straight line, and the horizontal base is in sliding sleeve joint with the lower end of the puncher body through the hole punching cavity;

through above-mentioned technical scheme, the lower extreme that utilizes the puncher body passes the trompil chamber and drills to be convenient for make the earth that the puncher body drilled out pile up at the intracavity that punches.

Preferably, the inner wall of the hole drilling cavity is provided with a water injection cavity, the inner bottom wall and the inner top wall of the water injection cavity are both rotatably connected with rotating shafts, and the surfaces of the two rotating shafts are both fixedly connected with push plates;

through above-mentioned technical scheme, utilize the push pedal through boring vestibule and water injection chamber when rotating along with the rotation axis to be convenient for promote the earth that drills out the puncher body through the push pedal to the mud extraction mouth end.

Preferably, a water injection pipe is fixedly inserted into the outer surface of the horizontal base, the tail end of the water injection pipe is positioned inside the water injection cavity, a mud pumping port is arranged on the surface of the horizontal base, and the mud pumping port is positioned between the two water injection pipes;

through above-mentioned technical scheme, utilize the water injection pipe to spray water to the push pedal surface in the water injection intracavity to be convenient for drive push pedal and rotation axis through the water impact push pedal and rotate.

Preferably, the tail end of the mud pumping port is communicated with the inside of the water injection cavity, and the other end of the mud pumping port is connected with a mud suction machine through a pipeline;

through above-mentioned technical scheme, utilize the suction dredge to carry out the suction through taking out mud mouth to the earth of punching the intracavity to be convenient for avoid earth to beat and pile up around the drill way on ground.

The beneficial effects of the utility model are as follows:

1. through setting up the under surface mounting level means at the hoist and mount seat, utilize the horizontal base among the level means to contact with ground all the time, be connected with external control ware through four proximity switches with horizontal base surface, when making horizontal base and ground level contact, four proximity switches are triggered simultaneously, and then confirm that horizontal base keeps the level, and because horizontal base passes through the hoist and mount seat and the puncher body between be connected the maintenance, make and ensure that the puncher body keeps the level, thereby make to have the characteristics of being convenient for monitor drilling equipment horizontal work.

2. Offer the water injection chamber through setting up on the inner wall surface in the hole drilling chamber, when utilizing the water injection pipe to water injection intracavity jet stream, rivers strike the surface of push pedal, make push pedal and rotation axis deflect, and the rotation axis through the deflection drives other push pedals and promotes to the opening surface of taking out mud mouth to the earth of the intracavity that punches, rethread starts the suction dredge and clears up the surperficial earth of taking out mud mouth, and then avoid the earth jam that the surface of ground drilling produced by drilling machine body during operation, make the lower extreme of the drilling machine body of being convenient for take out in the drilling, thereby make to have the characteristics that the drilling equipment of being convenient for used.

Drawings

FIG. 1 is a prior art diagram of a drilling device for constructing a high-permeability water-rich hard sand layer steel cofferdam according to the present invention;

FIG. 2 is a schematic diagram of a drilling device for constructing a high-permeability water-rich hard sand layer steel cofferdam provided by the utility model;

FIG. 3 is a sectional view of a horizontal base structure of the drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam provided by the utility model;

FIG. 4 is a perspective view of a push plate structure of the drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam provided by the utility model.

In the figure: 1. hoisting a seat; 2. a puncher body; 3. a horizontal base; 31. a telescopic rod; 32. a proximity switch; 33. punching a hole cavity; 34. a water injection cavity; 35. a rotating shaft; 36. pushing the plate; 37. a water injection pipe; 38. a sludge pumping port; 4. a suction dredge.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, the drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam comprises an occluded steel plate drilling machine 5, a vibration hammer 6, a crane 7, a dewatering device consisting of a water suction pump and a dewatering well, a hoisting seat 1 and a drilling machine body 2, wherein the driving end of the drilling machine body 2 is installed inside the hoisting seat 1, a horizontal device is installed on the lower surface of the hoisting seat 1 and comprises a horizontal base 3, and the horizontal device is used for carrying out horizontal detection on the drilling machine body 2 through the horizontal base 3;

further, an expansion link 31 is fixedly connected to the upper surface of the horizontal base 3, the upper end of the expansion link 31 is fixedly connected to the lower surface of the hoisting base 1, a proximity switch 32 is fixedly connected to the outer surface of the horizontal base 3, the hoisting base 1 and the horizontal base 3 are connected by using the expansion link 31, and the hoisting base 1 can be prevented from being pressed when descending along with the deep drilling;

further, the upper surface of the horizontal base 3 is provided with a boring cavity 33, the axis of the boring cavity 33 and the axis of the lower end of the punch body 2 are all on the same straight line, the horizontal base 3 is slidably sleeved with the lower end of the punch body 2 through the boring cavity 33, and the lower end of the punch body 2 is utilized to penetrate through the boring cavity 33 for drilling, so that soil drilled by the punch body 2 is conveniently accumulated in the boring cavity 33;

the horizontal device is arranged on the lower surface of the hoisting seat 1, the horizontal base 3 in the horizontal device is always in contact with the ground, the four proximity switches 32 on the surface of the horizontal base 3 are connected with an external controller, so that when the horizontal base 3 is in horizontal contact with the ground, the four proximity switches 32 are simultaneously triggered, the horizontal base 3 is further determined to be kept horizontal, and the horizontal base 3 is kept horizontal through the connection between the hoisting seat 1 and the perforating machine body 2, so that the perforating machine body 2 is ensured to be kept horizontal, and the horizontal device has the characteristic of being convenient for monitoring the horizontal work of the drilling device;

further, a water injection cavity 34 is formed in the inner wall of the hole drilling cavity 33, the inner bottom wall and the inner top wall of the water injection cavity 34 are both rotatably connected with rotating shafts 35, push plates 36 are fixedly connected to the surfaces of the two rotating shafts 35, and the push plates 36 pass through the hole drilling cavity 33 and the water injection cavity 34 when rotating along with the rotating shafts 35, so that soil drilled by the hole drilling machine body 2 is conveniently pushed to the mud pumping hole 38 end through the push plates 36;

furthermore, a water injection pipe 37 is fixedly inserted in the outer surface of the horizontal base 3, the end of the water injection pipe 37 is located inside the water injection cavity 34, a mud pumping port 38 is installed on the surface of the horizontal base 3, the mud pumping port 38 is located between the two water injection pipes 37, and the water injection pipes 37 are used for spraying water on the surface of the push plate 36 in the water injection cavity 34, so that the push plate 36 is impacted by water flow to drive the push plate 36 and the rotating shaft 35 to rotate;

further, the tail end of the mud pumping port 38 is communicated with the inside of the water injection cavity 34, the other end of the mud pumping port 38 is connected with the mud suction machine 4 through a pipeline, and the mud in the hole drilling cavity 33 is sucked through the mud pumping port 38 by the mud suction machine 4, so that the mud is prevented from being accumulated around the hole drilling hole on the ground;

water injection chamber 34 is seted up on the inner wall surface at boring hole 33 through the setting, when utilizing water injection pipe 37 to spray rivers in the water injection chamber 34, rivers strike push plate 36's surface, make push plate 36 and rotation axis 35 deflect, and the rotation axis 35 through the deflection drives other push plate 36 to the opening surface promotion of taking out mud mouth 38 to the earth in boring hole 33, rethread starts suction dredge 4 and clears up the earth of taking out mud mouth 38 surface, and then avoid the surface of ground drilling to be blockked up by the earth that drilling machine body during operation produced, make the lower extreme of the drilling machine body of being convenient for take out in the drilling, thereby make to have the characteristics that the drilling equipment of being convenient for used.

The working principle is as follows:

when the punching machine is used, the upper end of the punching machine body 2 is connected with a suspension arm of a crane through the hoisting seat 1, the lower end of the punching machine body 2 is aligned with a punching position and the punching machine body 2 is lowered to punch, the horizontal base 3 stretches the telescopic rod 31 under the action of gravity and contacts with the ground in advance, before the lower surface of the horizontal base 3 contacts with the ground, the suspension arm of the crane is adjusted, so that the four proximity switches 32 are triggered simultaneously, namely the lower surface of the horizontal base 3 is horizontal, the punching machine body 2 in the punching cavity 33 is kept vertical, the punching machine body 2 is opened to punch, and whether the horizontal base 3 is kept horizontally placed or not is judged by monitoring the triggering conditions of the four proximity switches 32;

the upper end of the perforating machine body 2 and the lifting seat 1 descend along with the penetration of the perforating, and further press the upper end of the telescopic rod 31, so that the telescopic rod 31 is contracted, the lower end of the perforating machine body 2 takes out soil and accumulates in the perforating cavity 33 during perforating, when an external water source is connected to the water injection pipe 37 and the water injection pipe 37 injects water into the water injection chamber 34, the water stream impacts the surface of the push plate 36, deflecting the push plate 36 and the rotating shaft 35, and drives other push plates 36 to push the soil in the hole drilling cavity 33 to the opening surface of the mud pumping hole 38 through the deflected rotating shaft 35, and then cleans the mixture of the soil and the water flow on the surface of the mud pumping hole 38 by starting the suction dredge 4, and then avoid the surface of ground drilling to be blockked up by the earth that drilling machine body during operation produced to be convenient for promote the upper end and the lifting socket 1 of drilling machine body 2 together through the loop wheel machine.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a drilling equipment is used in construction of high infiltration rich water hard sand bed steel cofferdam, includes interlock steel sheet rig (5), vibratory hammer (6), loop wheel machine (7), precipitation device, hoisting seat (1) and puncher body (2), its characterized in that: the punching machine is characterized in that the driving end of the punching machine body (2) is installed inside the hoisting seat (1), a horizontal device is installed on the lower surface of the hoisting seat (1), the horizontal device comprises a horizontal base (3), and the horizontal device carries out horizontal detection on the punching machine body (2) through the horizontal base (3).

2. The drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam of claim 1, wherein: the upper surface fixed connection of horizontal base (3) has telescopic link (31), the upper end of telescopic link (31) is connected with the lower fixed surface of hoist and mount seat (1), the surface fixed connection of horizontal base (3) has proximity switch (32).

3. The drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam of claim 1, wherein: the punching hole cavity (33) is formed in the upper surface of the horizontal base (3), the axis of the punching hole cavity (33) and the axis of the lower end of the punching machine body (2) are on the same straight line, and the horizontal base (3) is in sliding sleeve connection with the lower end of the punching machine body (2) through the punching hole cavity (33).

4. The drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam of claim 3, wherein: the inner wall of the hole drilling cavity (33) is provided with a water injection cavity (34), the inner bottom wall and the inner top wall of the water injection cavity (34) are both rotatably connected with rotating shafts (35), and the surfaces of the two rotating shafts (35) are both fixedly connected with push plates (36).

5. The drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam according to claim 4, characterized in that: the outer fixed surface of horizontal base (3) is pegged graft and is had water injection pipe (37), the end of water injection pipe (37) is located the inside of water injection chamber (34), the surface mounting of horizontal base (3) has and takes out mud mouth (38), it is located between two water injection pipes (37) to take out mud mouth (38).

6. The drilling device for the construction of the high-permeability water-rich hard sand layer steel cofferdam of claim 5, wherein: the tail end of the mud pumping port (38) is communicated with the inside of the water injection cavity (34), and the other end of the mud pumping port (38) is connected with a mud suction machine (4) through a pipeline.