WO2022205804A1

WO2022205804A1 - Roadbed improvement device

Info

Publication number: WO2022205804A1
Application number: PCT/CN2021/119888
Authority: WO
Inventors: 常佳佳; 高勇刚; 沈洪宇; 朱邵辉; 陈振国; 孙英武; 亓建国; 刘翠; 李龙飞; 杨思杰
Original assignee: 中建科工集团有限公司
Priority date: 2021-03-31
Filing date: 2021-09-23
Publication date: 2022-10-06
Also published as: CN113047149A

Abstract

A roadbed improvement device, comprising a base (100), a first chemical liquid supply device (210) and a drilling device (300). The base (100) is connected to a material blocking member. A first cavity (110) which communicates the upper and lower sides of the base (100) is provided on a side of the base (100) on which the material blocking member is located. The first cavity (110) communicates with the upper and lower sides of the base (100). The first chemical liquid supply device (210) is connected to the base (100) and is located above the first cavity (110). The first chemical liquid supply device (210) is used for injecting a chemical liquid to the first cavity (110). The drilling device (300) comprises a drill bit body (310) and a drill bit (330). The drill bit body (310) is connected to the base (100). The drill bit body (310) is used for driving the drill bit (330) to rotate and move in the up and down directions. The drill bit (330) passes through a drill bit hole (160) on the base (100). The material blocking member can enable roadbed soil material drilled by the drill bit (330) to approach the middle from both sides of the drill bit (330), thereby completing the burying of the soil material. The device can increase construction efficiency.

Description

Subgrade improvement device

technical field

The invention relates to the field of construction, in particular to a roadbed improvement device.

Background technique

The collapsible characteristics of collapsible loess roadbed will bring different degrees of harm to the structure, causing the structure to subside, crack, and tilt, and even seriously affect its safety and use. One of the effective methods to treat collapsible loess subgrade is chemical reinforcement method, which uses some chemical solutions to inject into the subgrade soil, and generates cementitious substances or activates the surface of soil particles through chemical reactions, so that the soil particles are combined to improve the strength of the soil. . After the subgrade soil is injected into the chemical solution, the subgrade needs to be buried manually, which is labor-intensive and low in construction efficiency.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a roadbed improvement device, which can bury the soil material while injecting a chemical solution into the roadbed soil, thereby reducing manual operations and improving construction efficiency.

The roadbed improvement device according to the embodiment of the present invention includes:

a base, a material blocking member is connected to the base, a first cavity is provided on one side of the material blocking member, and the first cavity communicates with the upper and lower sides of the base;

A first chemical solution supplying device, the first chemical solution supplying device is connected to the base, the first chemical solution supplying device is located above the first cavity, and the first chemical solution supplying device is used to supply the first chemical solution to the base. A cavity is injected with chemical liquid;

an earth-boring device, wherein the first chemical liquid supply device is located between the earth-boring device and the material blocking member, the earth-boring device comprises a drill bit body and a drill bit, and the drill bit body is connected to the base, The drill bit body is used to drive the drill bit to rotate and move in the up and down direction, the base is provided with a drill bit hole, the drill bit passes through the drill bit hole, the drill bit body is connected to the base, and the drill bit body is connected to the base. The stopper can make the roadbed soil drilled by the drill bit move toward the middle from both sides of the drill bit.

The subgrade improvement device according to the embodiment of the present invention has at least the following beneficial effects: the first chemical liquid supply device can inject chemical liquid into the subgrade; The subgrade soil is dropped into the trench drilled by the drill bit to complete the soil burial, so that the subgrade improvement device can inject the chemical solution into the subgrade soil and bury the soil material at the same time. Effectively improve the construction efficiency of roadbed improvement.

According to some embodiments of the present invention, the base is provided with a second cavity on the other side of the blocking member, the first cavity communicates with the second cavity, and the roadbed improvement device further includes A second chemical liquid supply device, the second chemical liquid supply device is located above the second cavity, the second chemical liquid supply device is used for injecting chemical liquid into the second cavity, and the first cavity is located at between the second cavity and the drill bit.

According to some embodiments of the present invention, the blocking member includes a first baffle and a second baffle, the first baffle is connected to an inner wall of one side of the base, and the second baffle is connected to the On the inner wall of the other side of the base, the distance between the first baffle and the second baffle decreases from the proximal end to the distal end relative to the drill bit.

According to some embodiments of the present invention, the connection angle between the first baffle and the base is adjustable, and the connection angle between the second baffle and the base is adjustable.

According to some embodiments of the present invention, two screw rods are respectively provided on both sides of the drill bit body, the two screw rods are symmetrical with respect to the drill bit body, the screw rods are connected to the base, and the two screw rods are symmetrical A threaded sleeve bracket is arranged between the set screw rods, the threaded sleeve bracket is respectively threadedly connected with the two screw rods, the threaded sleeve bracket is provided with a bracket hole, and the drill bit passes through the The bracket hole is connected with the drill bit hole, and the drill bit body is connected with the threaded sleeve bracket.

According to some embodiments of the present invention, the base is provided with a first fixing member, the drill body is connected with a limiting ring, the limiting ring is sleeved on the first fixing member and can be connected with the The first fixing member moves up and down.

According to some embodiments of the present invention, the roadbed improvement device further includes a leveling mechanism, the leveling mechanism is located on a side of the blocking member away from the ground boring device, and the leveling mechanism includes a leveling roller , A smoothing roller and a mounting seat, the mounting seat is connected to the base, the smoothing roller is connected to the mounting seat, and the smoothing roller is sleeved on the smoothing roller and The smoothing roller can be rotated around the smoothing roller, and the smoothing roller is used for smoothing the road surface.

According to some embodiments of the present invention, the roadbed improvement device further includes a straight line alignment mechanism, the straight line alignment mechanism includes a right-angle U-shaped plate, a correction link and a second fixing member, and the second fixing member is connected to the base one side, the correction link is connected between the right-angle U-shaped plate and the second fixing member, the correction link is perpendicular to the second fixing member, and the second fixing member is connected to the second fixing member. The connection surface of the base is vertical, and the two sides of the bottom end of the right-angle U-shaped plate are respectively provided with rollers.

According to some embodiments of the present invention, the distance between the correction link and the base is adjustable.

According to some embodiments of the present invention, the second fixing member is provided with a plurality of connecting threaded holes, the calibration link includes a fixing ring, the fixing ring is sleeved on the second fixing member, and the fixing ring An installation hole is provided on the upper part, and the fixing ring is connected with the second fixing piece through an adjusting connecting piece, and the adjusting connecting piece sequentially passes through the mounting hole and the connecting screw hole of the set position.

According to some embodiments of the present invention, the base further includes a plurality of universal wheels, and the plurality of universal wheels are located at the bottom of the base.

According to some embodiments of the present invention, the roadbed improvement device further includes a handle frame connected to the base, and the handle frame is located at a proximal side of the base relative to the ground boring device.

According to some embodiments of the present invention, the base further includes a third baffle plate, the third baffle plate is located below the handle frame, and the third baffle plate is used for blocking earth materials.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, wherein:

1 is a schematic diagram of a roadbed improvement device in an embodiment of the present invention;

Fig. 2 is the bottom view of the base of the subgrade improvement device in the embodiment of the present invention;

3 is a partial structural schematic diagram of the base of the roadbed improvement device in the embodiment of the present invention;

4 is a schematic diagram of a leveling mechanism of a roadbed improvement device in an embodiment of the present invention;

5 is a schematic diagram of a straight line calibration mechanism of the roadbed improvement device in the embodiment of the present invention;

Reference number:

Base 100 , first cavity 110 , second cavity 120 , first baffle 130 , second baffle 140 , third baffle 150 , drill hole 160 , screw mounting hole 170 , first chemical liquid supply device 210 , the second chemical liquid supply device 220, the drilling device 300, the drill bit body 310, the limit ring 320, the drill bit 330, the screw rod 340, the threaded sleeve bracket 350, the first fixing member 360, the leveling mechanism 400, leveling roller Wheel 410, smoothing roller shaft 420, mounting seat 430, linear alignment mechanism 500, right-angle U-shaped plate 510, correction connecting rod 520, fixing ring 521, adjusting connecting piece 530, second fixing piece 540, connecting threaded hole 541, roller 550, universal wheel 600, handle frame 700, handle frame mounting plate 710, handle bar 720, material stopper 800.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, several means one or more, and plural means two or more. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

In the description of the present invention, reference to the terms "one embodiment", "some embodiments", "exemplary embodiment" or "some examples" etc. refers to the specific features, structures, materials described in connection with the embodiment or example Or features are included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to FIGS. 1 to 3 , an embodiment of the present invention proposes a subgrade improvement device, which includes a base 100 , a first chemical liquid supply device 210 and a ground drilling device 300 . A material blocking member 800 is connected to the base 100. The base 100 is provided with a first cavity 110 on one side of the material blocking member 800. The first cavity 110 is connected to the upper and lower sides of the base 100; the first chemical liquid supply device 210 and the base 100 connection, the first chemical liquid supply device 210 is located above the first cavity 110, the first chemical liquid supply device 210 is used to inject chemical liquid into the first cavity 110; the first chemical liquid supply device 210 is located between the ground drilling device 300 and the Between the stoppers 800, the ground drilling device 300 includes a drill body 310 and a drill 330. The drill body 310 is connected to the base 100. The drill body 310 is used to drive the drill 330 to rotate and move in the up and down direction. The base 100 is provided with a The drill bit hole 160 , the drill bit 330 passes through the drill bit hole 160 , the drill bit body 310 is connected to the base 100 , and the stopper 800 enables the subgrade soil drilled by the drill bit 330 to move toward the middle from both sides of the drill bit 330 .

The use process of the subgrade improvement device in the embodiment of the present invention is as follows: the subgrade improvement device is pulled at the end where the drill bit 330 is located to move the subgrade improvement device along the set path, and the ground drilling device 300 drills the ground to the set depth, and the When a trench appears on the moving ground of the subgrade improvement device, the first chemical liquid supply device 210 injects chemical liquid into the trench, and at the same time, the subgrade soil is dispersed to both sides of the trench under the rotation of the drilling hole, and the blocking member 800 can be used in the subgrade improvement device. During the movement of the trench, the subgrade soil on both sides of the trench will be gathered in the middle, so that the subgrade soil on both sides of the trench will fall into the trench, thus completing the burial of the soil material.

The first chemical liquid supply device 210 may be a liquid container provided with a pump, and the chemical liquid is injected into the first cavity 110 through the pump. The first chemical liquid supply device 210 may also be a liquid container provided with a valve, and the chemical liquid is injected into the first cavity 110 by switching the valve on and off. The first chemical liquid supply device 210 may also be another liquid container for injecting chemical liquid into the first cavity 110 by pressure injection. The material blocking member 800 may be set in a figure-eight shape or other shapes that shrink from both ends to the middle, so that the subgrade soil drilled by the drill bit 330 moves toward the middle from both sides of the drill bit 330 .

The chemical liquid supplied by the first chemical liquid supply device 210 in the embodiment of the present application is a chemical liquid that can chemically react with soil particles to form a cementitious substance, combine the soil particles, and improve the strength of the soil body. The ground-boring device 300 in the embodiment of the present application may be a drilling rig equipment used for drilling in the related technical field. The drill body 310 is provided with a motor inside, and the motor drives the drill bit 330 to rotate so that the drill bit 330 drills through the ground. The way that the drill bit body 310 is driven to move in the up and down direction can be realized by a motor driving a screw drive mechanism; it can also be realized by pushing the drill bit 330 through a driving member such as an air cylinder or a hydraulic cylinder.

In the subgrade improvement device in the embodiment of the present invention, the first chemical liquid supply device 210 can inject chemical liquid into the subgrade, and one end of the first cavity 110 on the base 100 is provided with a material stopper 800, and the material stopper 800 can make the drill bit 330 The drilled subgrade soil material moves closer to the middle from both sides of the drill bit 330, so that the subgrade soil material falls into the trench and the soil material is buried. The subgrade improvement device in the embodiment of the present invention can perform soil burial while injecting the chemical solution into the subgrade soil, which reduces the operations required by the construction personnel to improve the subgrade, and can effectively improve the construction efficiency of the subgrade improvement.

Referring to FIGS. 1 and 2 , in some embodiments of the present invention, the base 100 is provided with a second cavity 120 , a first cavity 110 and a second cavity 120 on the side of the blocking member 800 away from the earth boring device 300 . The first cavity 110 and the second cavity 120 are located on both sides of the blocking member 800, the roadbed improvement device further includes a second chemical liquid supply device 220, and the first chemical liquid supply device 210 is located above the first cavity 110, The second chemical liquid supply device 220 is located above the second cavity 120 , the second chemical liquid supply device 220 is used for injecting chemical liquid into the second cavity 120 , and the first cavity 110 is located between the second cavity 120 and the drill bit 330 . The communication between the first cavity 110 and the second cavity 120 may be that a communication port is formed on the blocking member 800, or a gap is formed between the blocking member 800 and the blocking member 800.

It can be understood that the ground drilling device 300, the first cavity 110, and the second cavity 120 are arranged in sequence. During the movement of the subgrade improvement device at the end of the drill bit 330, the drill bit 330 drills a trench on the subgrade, and the drill bit 330 drills a trench. The first chemical solution supply device 210 injects a chemical solution into the trench, the material stopper 800 behind the first chemical solution supply device 210 pushes the subgrade soil on both sides of the trench into the trench, and the second chemical solution behind the material stopper 800 pushes the subgrade soil on both sides of the trench into the trench. The liquid supply device 220 can perform one-time injection of chemical liquid into the subgrade soil buried in the trench to condense the buried subgrade soil. Therefore, the subgrade improvement device in this embodiment can perform two chemical liquid injections successively during the movement of the subgrade improvement device, without the need for construction personnel to repeat the construction, which effectively improves the construction efficiency.

In addition, the chemical liquid in the first cavity 110 is injected into the roadbed. In order to ensure the sufficient reaction of the collapsible loess in the roadbed, the chemical liquid must ensure a sufficient dose. Therefore, the injection amount of the first chemical liquid supply device 210 will be set to The amount of collapsible loess in the excess subgrade, the first cavity 110 is communicated with the second cavity 120, the excess chemical liquid can enter the second cavity 120, and then inject into the buried soil from the second cavity 120 Therefore, the chemical liquid can be prevented from overflowing from the first cavity 110 and the use of the chemical liquid can be saved.

In some embodiments of the present invention, the blocking member 800 includes a first baffle 130 and a second baffle 140 , the first baffle 130 is connected to an inner wall of one side of the base 100 , and the second baffle 140 is connected to an inner wall of the base 100 . On the inner wall of the other side, the distance between the first baffle 130 and the second baffle 140 decreases from the proximal end to the distal end opposite to the drill bit 330 . Since the distance between the first baffle 130 and the second baffle 140 decreases from the proximal end to the distal end relative to the drill bit 330 , during the movement of the roadbed improvement device, the first baffle 130 and the second baffle 140 will make the trench two The subgrade soil on the sides gathers toward the middle, so that the subgrade soil on both sides of the drill bit 330 falls into the trench.

In some embodiments of the present invention, the connection angle between the first baffle 130 and the base 100 is adjustable, and the connection angle between the second baffle 140 and the base 100 is adjustable. The connection angle between the first baffle 130 and the base 100 changes, and the distance between the first baffle 130 and the second baffle 140 also changes. Larger, the better the gathering effect of the subgrade soil on both sides of the trench, the greater the amount of soil entering the trench on the subgrade. Therefore, by changing the connection angle between the first baffle plate 130 and the base 100 or the connection angle between the second baffle plate 140 and the base 100 , the amount of soil entering by the roadbed improvement device to be buried in the roadbed trench can be changed.

The connection angle between the first baffle 130 and the base 100 can be adjusted by: the first baffle 130 is hinged with the base 100 , and the first baffle 130 can rotate relative to the base 100 , thereby changing the first baffle 130 and the base 100 connection angle between. The connection angle between the first baffle 130 and the base 100 can also be adjusted in the following way: the first baffle 130 and the base 100 are connected by threads, so that the first baffle 130 can be detached from the base 100, and then replaced with a new one. Angular reconnect. The adjustment method of the connection angle between the second baffle 140 and the bracket of the base 100 is the same.

In some embodiments of the present invention, the first baffle 130 is connected with the base 100 through threads, and the second baffle 140 is connected with the base 100 through threads. The threaded connection is easy to install and disassemble, and has good stability, which can prevent the first baffle 130 and the second baffle 140 from loosening during the movement of the roadbed improvement device. The first baffle 130 and the base 100 may be connected by threads in a manner that a through hole or a threaded hole is formed on the first baffle 130 , a through hole or a threaded hole is formed on the base 100 , and a space between the first baffle 130 and the base 100 is formed. Connection by bolts or screws. The connection between the second baffle 140 and the base 100 is the same.

Referring to FIG. 1 , in some embodiments of the present invention, screw rods 340 are respectively provided on both sides of the drill body 310 . There is a threaded sleeve bracket 350, the screw rod 340 is connected with the base 100, the threaded sleeve bracket 350 is threadedly connected with the two screw rods 340, the threaded sleeve bracket 350 is provided with a bracket hole (not shown in the figure), and the drill bit 330 passes through in turn The bracket hole is connected with the drill bit hole 160 , and the drill bit body 310 is connected with the threaded sleeve bracket 350 . The threaded sleeve supports 350 are respectively threadedly connected with the two screw rods 340 , so the positions of the screw sleeves on the two screw rods 340 can be adjusted. The drill body 310 is connected with the threaded sleeve bracket 350, so that the position of the drill body 310 changes as the position of the adjustment threaded sleeve changes. Therefore, by adjusting the position of the threaded sleeve bracket 350 on the two screw rods 340, the height position of the drill body 310 can be adjusted to adapt to roadbeds of different heights. In addition, the symmetrically arranged two screw rods 340 can reduce the vibration caused by the drill bit 330 and improve the stability of the drill bit 330 when drilling into the ground.

The connection between the lead screw 340 and the base 100 may be welding, screw connection or the like. For example, in an embodiment of the present invention, the base 100 is provided with a screw mounting hole 170, an internal thread is provided in the screw mounting hole 170, and the screw 340 can be fixed in the screw mounting hole 170 by screwing .

Referring to FIG. 1 , in some embodiments of the present invention, a first fixing member 360 is provided on the base 100 , the drill body 310 is connected to a limiting ring 320 , and the limiting ring 320 is sleeved on the first fixing member 360 and is capable of and move up and down along the first fixing member 360 . The limiting ring 320 is nested and matched with the first fixing member 360 , which can reduce the eccentric movement of the drill bit body 310 caused by the vibration of the drill bit 330 . The limiting ring 320 can move up and down along the first fixing member 360 through clearance fit with the first fixing member 360 .

1 and 4 , in some embodiments of the present invention, the roadbed improvement device further includes a leveling mechanism 400 , the leveling mechanism 400 is located on the side of the blocking member 800 away from the ground boring device 300 , and the leveling mechanism 400 includes a leveling mechanism 400 . The leveling roller 410, the leveling roller 420 and the mounting seat 430, the mounting seat 430 is connected with the base 100, the leveling roller 420 is connected to the mounting seat 430, the leveling roller 410 is sleeved on the leveling roller 420 and It can rotate around the smoothing roller shaft 420, and the smoothing roller 410 is used for smoothing the road surface. After the retaining member 800 gathers the subgrade soil into the trench, the leveling mechanism 400 can smooth the subgrade soil with uneven subgrade surface, so that the subgrade surface is flat. The construction personnel can use the subgrade improvement device in this embodiment to inject and bury the subgrade soil with chemical liquid, and at the same time complete the smoothing of the subgrade surface, which effectively improves the construction efficiency of the subgrade improvement.

It can be understood that, referring to FIG. 1 , in the embodiment in which the subgrade improvement device is provided with the first cavity 110 and the second cavity 120 , the leveling mechanism 400 is located on the side of the blocking member 800 away from the earth boring device 300 , and The leveling mechanism 400 can be arranged to be located at the rear of the second cavity 120, so that after the second chemical liquid supply device injects the chemical liquid into the trench, the leveling mechanism 400 smoothes the soil material on the surface of the roadbed to ensure the smoothness after construction. The subgrade surface is flat.

Referring to FIG. 4 , in some embodiments of the present invention, the mounting seat 430 includes a circular arc portion, the circular arc portion is located above the leveling roller 410 , and the cross-section of the circular arc portion is semi-circular and is the same as the cross-section of the leveling roller 410 . Concentric, there is a gap between the arc portion and the smoothing roller 410 . The soil material on the surface of the roadbed is uneven, and the smoothing roller 410 is bumpy when moving, and may be offset relative to the smoothing roller shaft 420. After the smoothing roller 410 is offset, it contacts with the arc part, and the arc part can The deviated smoothing roller 410 resists to prevent it from being deviated further.

1 and 5, in some embodiments of the present invention, the subgrade improvement device further includes a linear alignment mechanism 500, and the linear alignment mechanism 500 includes a right-angled U-shaped plate 510, a correction link 520 and a second fixing member 540, the second The fixing member 540 is connected to the side of the base 100 , the calibration link 520 is connected between the right-angle U-shaped plate 510 and the second fixing member 540 , the calibration link 520 is perpendicular to the second fixing member 540 , and the second fixing member 540 is connected to the base The connecting surface of the 100 is vertical, and the two sides of the bottom end of the right-angled U-shaped plate 510 are respectively provided with rollers 550 . The calibration link 520 is perpendicular to the second fixing member 540, and the connecting surface of the second fixing member 540 and the base 100 is perpendicular, thereby ensuring that the moving direction of the roadbed improvement device is parallel to the set moving direction.

The right-angled U-shaped plate 510 includes two wings and a web, the web is connected between the two wings, and the two wings are both perpendicular to the web. By matching the right-angled U-shaped plate 510 and the roller 550 with the set route on the ground, the roadbed improvement device can be prevented from deviating from the route during the moving process, which affects the construction quality. Rollers 550 are respectively provided on both sides of the bottom end of the right-angled U-shaped plate 510 to facilitate the movement of the right-angled U-shaped plate 510 .

In some embodiments of the present invention, the distance between the correction link 520 and the base 100 can be adjusted, so the distance between the correction link 520 and the base 100 can be adjusted according to the route, so as to adapt to various widths of roadbeds. Construction requirements. The adjustment method of the distance between the calibration link 520 and the base 100 may be: the calibration link 520 is slidably connected to the second fixing member 540 , and the calibration link 520 is slid along the length direction of the second fixing member 540 to change the calibration connection. The distance of the rod 520 relative to the base 100 . The adjustment method of the distance between the calibration link 520 and the base 100 may be as follows: the calibration link 520 can be detachably connected to different positions in the length direction of the second fixing member 540 to change the distance between the calibration link 520 and the base 100 . distance between. Wherein, detachable connection methods include but are not limited to screw connection, snap connection, and the like.

5 , in some embodiments of the present invention, the second fixing member 540 is provided with a plurality of connecting threaded holes 541 , the calibration link 520 includes a fixing ring 521 , and the fixing ring 521 is sleeved on the second fixing member 540 to fix The ring 521 is provided with a mounting hole, and the fixing ring 521 is connected with the second fixing piece 540 through the adjusting connecting piece 530 , and the adjusting connecting piece 530 is passed through the mounting hole and the connecting screw hole 541 at the set position. By adjusting the connecting member 530 to connect the connecting screw holes 541 at different positions, the connection position between the calibration link 520 and the second fixing member 540 is changed, thereby changing the distance between the calibration link 520 and the base 100 . It can be understood that the adjusting connecting piece 530 is connected to the connecting threaded hole 541 at the set position, and the distance between the correcting link 520 and the base 100 can be matched with the width of the construction roadbed to be constructed. The adjustment connection member 530 may be a threaded connection member such as various types of screws and bolts.

Referring to FIG. 1 , in some embodiments of the present invention, the base 100 further includes a plurality of universal wheels 600 , and the multiple universal wheels 600 are located at the bottom of the base 100 . The roadbed improvement device needs to be moved during use, and the roadbed improvement device equipped with the universal wheel 600 can be moved without the aid of other moving tools.

1 , in some embodiments of the present invention, the roadbed improvement device further includes a handle frame 700 , the handle frame 700 is connected to the base 100 , and the handle frame 700 is located on the proximal side of the base 100 relative to the ground boring device 300 . Specifically, the handle frame 700 includes two handle frame mounting plates 710 and a handle bar 720 , the handle frame 700 mounting base 430 is connected to the base 100 , and the handle bar 720 is connected between the two handle frame mounting plates 710 . When the construction personnel use the subgrade improvement device, they need to drive the subgrade improvement device to move, and a handle frame 700 is provided to facilitate the construction personnel to drag or push the subgrade improvement device. The handle frame 700 is located on the proximal side of the base 100 relative to the ground drilling device 300 , so that when the construction personnel drag or push the subgrade improvement device, the ground drilling, chemical injection and burial operations are performed in sequence.

1 , in some embodiments of the present invention, the base 100 further includes a third baffle 150 , the third baffle 150 is located below the handle frame 700 , and the third baffle 150 is used to block soil materials. The construction worker is located on one side of the handle frame 700. When the drill bit 330 drills through the ground, the third baffle 150 can prevent the drilled soil from splashing onto the construction worker's body.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and within the scope of knowledge possessed by those of ordinary skill in the art, various Variety. Furthermore, the embodiments of the present invention and features in the embodiments may be combined with each other without conflict.

Claims

The roadbed improvement device is characterized in that it includes:

a base, a material blocking member is connected to the base, a first cavity is provided on one side of the material blocking member, and the first cavity communicates with the upper and lower sides of the base;

A first chemical solution supplying device, the first chemical solution supplying device is connected to the base, the first chemical solution supplying device is located above the first cavity, and the first chemical solution supplying device is used to supply the first chemical solution to the base. A cavity is injected with chemical liquid;

an earth-boring device, wherein the first chemical liquid supply device is located between the earth-boring device and the material blocking member, the earth-boring device comprises a drill bit body and a drill bit, and the drill bit body is connected to the base, The drill bit body is used to drive the drill bit to rotate and move in the up and down direction, the base is provided with a drill bit hole, the drill bit passes through the drill bit hole, the drill bit body is connected to the base, and the drill bit body is connected to the base. The stopper can make the roadbed soil drilled by the drill bit move toward the middle from both sides of the drill bit.
The roadbed improvement device according to claim 1, wherein the base is provided with a second cavity on the other side of the blocking member, and the first cavity communicates with the second cavity, The roadbed improvement device further includes a second chemical liquid supply device, the second chemical liquid supply device is located above the second cavity, and the second chemical liquid supply device is used for injecting chemical liquid into the second cavity, The first cavity is located between the second cavity and the drill bit.
The roadbed improvement device according to claim 1, wherein the blocking member comprises a first baffle plate and a second baffle plate, the first baffle plate is connected to an inner wall of one side of the base, and the first baffle plate is connected to an inner wall of one side of the base. Two baffles are connected to the inner wall of the other side of the base, and the distance between the first baffle and the second baffle decreases from the proximal end relative to the drill bit to the distal end.
The roadbed improvement device according to claim 3, wherein the connection angle between the first baffle and the base is adjustable, and the connection angle between the second baffle and the base is adjustable .
The roadbed improvement device according to claim 1, wherein a screw rod is respectively provided on both sides of the drill bit body, and the two screw rods are symmetrical with respect to the drill bit body, and the screw rods are connected to the drill bit body. The base is connected, a threaded sleeve bracket is arranged between the two symmetrically arranged screw rods, the threaded sleeve bracket is threadedly connected with the two screw rods, and the threaded sleeve bracket is provided with a bracket hole, and the threaded sleeve bracket is provided with a bracket hole. The drill bit passes through the bracket hole and the drill bit hole in sequence, and the drill bit body is connected with the threaded sleeve bracket.
The roadbed improvement device according to claim 5, wherein a first fixing member is arranged on the base, the drill body is connected with a limit ring, and the limit ring is sleeved on the first fixing member on, and can move up and down along the first fixing piece.
The roadbed improvement device according to claim 1, characterized in that, the roadbed improvement device further comprises a smoothing mechanism, the smoothing mechanism is located on the side of the blocking member away from the ground boring device, and the smoothing mechanism The leveling mechanism includes a leveling roller, a leveling roller and a mounting seat, the mounting seat is connected to the base, the leveling roller is connected to the mounting seat, and the leveling roller is sleeved on the mounting seat. The smoothing roller is on and can rotate around the smoothing roller, and the smoothing roller is used for smoothing the road surface.
The roadbed improvement device according to claim 1, characterized in that, the roadbed improvement device further comprises a linear alignment mechanism, the linear alignment mechanism comprises a right-angle U-shaped plate, a correction link and a second fixing member, the second The fixing piece is connected to the side of the base, the calibration link is connected between the right-angle U-shaped plate and the second fixing piece, the calibration link is perpendicular to the second fixing piece, and the calibration link is perpendicular to the second fixing piece. The second fixing member is perpendicular to the connecting surface of the base, and rollers are respectively provided on both sides of the bottom end of the right-angled U-shaped plate.
The roadbed improvement device according to claim 8, wherein the distance between the correction link and the base is adjustable.
The roadbed improvement device according to claim 9, wherein the second fixing member is provided with a plurality of connecting threaded holes, the calibration link comprises a fixing ring, and the fixing ring is sleeved on the second fixing member The fixing ring is provided with a mounting hole, and the fixing ring is connected with the second fixing piece through an adjusting connecting piece, and the adjusting connecting piece is penetrated in the connecting threaded hole between the mounting hole and the set position. .
The roadbed improvement device according to claim 1, wherein the base further comprises a plurality of universal wheels, and the multiple universal wheels are located at the bottom of the base.
The roadbed improvement device according to claim 1, wherein the roadbed improvement device further comprises a handle frame, the handle frame is connected to the base, and the handle frame is located on the base relative to the ground boring device near side.
The roadbed improvement device according to claim 12, wherein the base further comprises a third baffle plate, the third baffle plate is located below the handle frame, and the third baffle plate is used for blocking soil materials .