A measuring device and measuring method for geotechnical engineering investigation

Abstract

The present invention provides a measuring device and a measuring method for geotechnical engineering investigation, including a drill pipe, a guiding pipe movably arranged on the outer wall of the drill pipe, a supporting plate connected to the guiding pipe, a plurality of brackets and a plurality of through holes arranged on the supporting plate, the brackets and the through holes are evenly distributed around the drill pipe, a rotating shaft is connected to the bracket, a limiting disc is installed on the rotating shaft, one end of a steel wire rope is wound on the limiting disc, and the other end of the steel wire rope passes through the through hole and is connected with a disc; an adjusting pipe is arranged on the disc, a sphere is placed at the upper end of the adjusting pipe, the lower end is connected with a motor box, a first motor is fixed in the motor box, a rotating shaft of the first motor is connected downward with a drill bit, and the sphere is fixedly connected to the drill pipe. The tightness and angle of the drill bit are adjusted through the steel wire rope, and when drilling, the drill bit can be fixed to maintain the stability of drilling.

Description

Technical Field

[0001] The present invention relates to the technical field of exploration equipment, and in particular to a measuring device and a measuring method for geotechnical engineering exploration. Background Art

[0002] During geotechnical engineering exploration, in order to evaluate the impact of the groundwater level on the project, it is necessary to measure the groundwater level. The traditional measurement method is generally as follows: Drill a hole on the ground, and then lower a rope with a float into the hole so that the float floats on the groundwater surface. The length of the lowered rope is the depth of the groundwater level.

[0003] Patent No. CN202122802606.5, with an application date of November 16, 2021, discloses a device for measuring the groundwater level in geotechnical engineering exploration, which is characterized in that: it includes a placement plate, four spirit levels are arranged on the top of the placement plate, and a leveling device is threadedly connected to each of the four corners of the placement plate. A sleeve is fixedly connected to the middle of the placement plate, a lengthening rod is sleeved inside the sleeve, a measuring rod is threadedly connected to one side of the lengthening rod, and a measuring head is threadedly connected to the side of the lengthening rod away from the measuring rod.

[0004] The above patent determines whether the placement plate is level by setting the placement plate and adjusting the four leveling devices to observe whether the four spirit levels are level. However, the verticality of the drilled hole directly affects the measurement accuracy of the groundwater level. Because if the hole is inclined during drilling, there will be an error in the depth of the groundwater level finally measured by the rope, and the existing drilling equipment cannot guarantee the verticality of the drilled hole. Even if it is found that the hole is inclined during the drilling process, the drilling angle cannot be adjusted. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a measuring device and a measuring method for geotechnical engineering exploration, which effectively ensure the accuracy of measuring the groundwater level.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] A measuring device for geotechnical engineering exploration includes a drill pipe, a guiding pipe movably arranged on the outer wall of the drill pipe, a support plate connected to the guiding pipe, a plurality of brackets and a plurality of through holes arranged on the support plate. The brackets and the through holes are evenly distributed around the drill pipe. A rotating shaft is connected to the bracket, a limiting disc is installed on the rotating shaft, one end of a steel wire rope is wound around the limiting disc, and the other end of the steel wire rope passes through the through hole and is connected to a disc;

[0008] An adjusting pipe is provided on the disc. A sphere is placed at the upper end of the adjusting pipe, and the lower end is connected to a motor box. A first motor is fixed inside the motor box. The rotating shaft of the first motor is connected downward to a drill bit, and the sphere is fixedly connected to the drill pipe.

[0009] The bottom end of the drill pipe is sleeved into the adjusting pipe, and a plurality of springs are evenly distributed between the drill pipe and the adjusting pipe.

[0010] One end of an L-shaped bracket is also provided on the support plate. The other end of the L-shaped bracket is connected to a second motor, and a gear is connected to the second motor. The gear acts on the drill pipe.

[0011] There are two L-shaped brackets, which are distributed on both sides of the drill pipe. A support rod and a display 1 are provided on the L-shaped bracket. A spirit level is also provided on the motor box, and the spirit level is connected to the display through a wireless network.

[0012] An electric telescopic rod is also provided on the support plate. The telescopic end of the electric telescopic rod is connected to a brake block, and the brake block acts on the limiting disc.

[0013] A measuring method for a measuring device for geotechnical engineering investigation includes the following steps:

[0014] S1. Insert the bottom of the drill pipe into and through the guide pipe. The controller starts the first motor to drive the drill bit to rotate, and presses down the drill pipe to make the drill bit drill a hole vertically downward. Due to the frictional force between the brake block and the limiting disc, the steel wire rope can be tightened to fix the adjusting pipe at the lower end of the sphere and fix the drill bit; or the rotating shaft can slowly rotate to release the steel wire rope so that the drill bit can move down smoothly.

[0015] S2. Judge whether the hole is inclined through the spirit level and transmit the inclination data to the display. If the hole is inclined, the controller turns off the first motor, rotates the rotating shaft, and adjusts the angle of the adjusting pipe by winding or loosening each steel wire rope, thereby adjusting the angle of the drill bit and finally making the drill bit perpendicular to the ground.

[0016] S3. Start the second motor. The second motor drives the gear to rotate, so that the gear drives the drill pipe to move down, and the drill pipe drives the drill bit to move down to drill a hole more smoothly.

[0017] The beneficial effects of the present invention are:

[0018] 1. Adjust the tightness and angle of the drill bit through the steel wire rope. When drilling a hole, the drill bit can be fixed to maintain the stability of the drilling. When the angle of the drill bit needs to be adjusted, loosen the steel wire rope, and the angle of the drill bit can be adjusted so that the drill bit can always drill holes in a direction perpendicular to the ground, thereby effectively ensuring the accuracy of measuring the groundwater level.

[0019] 2. The level can be used to determine whether the hole is inclined, and the inclination data is transmitted to the display. If the hole is inclined, the first motor is turned off through the controller, and then the electric telescopic rod drives the brake block to move slightly, reducing the degree of the brake block pressing against the limit disk. Then, the rotating shaft rotates, and by winding or unwinding each steel wire rope, the angle of the adjusting pipe is adjusted, thereby adjusting the angle of the drill bit to make the drill bit perpendicular to the ground. Then, the electric telescopic rod drives the brake block to press against the limit disk, and drilling continues. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is Figure 1 an enlarged schematic view of part A of

[0022] Figure 3 is Figure 1 an enlarged schematic view of part B of

[0023] Figure 4 is Figure 1 an enlarged schematic view of part C of

[0024] Figure 5 is Figure 1 an enlarged schematic view of part D of

[0025] As shown in the figure: 1, display; 2, drill pipe; 3, support rod; 4, L-shaped bracket; 5, support plate; 6, guide pipe; 7, steel wire rope; 8, motor box; 9, drill bit; 10, first motor; 11, rotating shaft; 12, gear; 13, second motor; 14, electric telescopic rod; 15, telescopic end; 16, brake block; 17, rotating shaft; 18, bracket; 19, limit disk; 20, through hole; 21, disk; 22, level; 23, spring; 24, adjusting pipe; 25, sphere. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present invention will be further described below in conjunction with the drawings and embodiments.

[0027] As Figures 1 to 5 shown, a measuring device for geotechnical engineering investigation includes a drill pipe 2, a guide pipe 6 movably arranged on the outer wall of the drill pipe 2, a support plate 5 connected to the guide pipe 6, a plurality of brackets 18 and a plurality of through holes 20 arranged on the support plate 5. The brackets 18 and the through holes 20 are evenly distributed around the drill pipe 2. A rotating shaft 17 is connected to the bracket 18, a limit disk 19 is installed on the rotating shaft 17, one end of a steel wire rope 7 is wound around the limit disk 19, and the other end of the steel wire rope 7 passes through the through hole 20 and is connected to a disk 21;

[0028] An adjustment pipe 24 is provided on the disk 21. A sphere 25 is placed at the upper end of the adjustment pipe 24, and the lower end is connected to a motor box 8. A first motor 10 is fixed inside the motor box 8. A drill bit 9 is connected downward to the rotating shaft 11 of the first motor 10. The sphere 25 is fixedly connected to the drill pipe 2.

[0029] The bottom end of the drill pipe 2 is sleeved into the adjustment pipe 24, and a plurality of springs 23 are evenly distributed between the drill pipe 2 and the adjustment pipe 24.

[0030] One end of an L-shaped bracket 4 is also provided on the support plate 5. The other end of the L-shaped bracket 4 is connected to a second motor 13. A gear 12 is connected to the second motor 13, and the gear 12 acts on the drill pipe 2.

[0031] There are two L-shaped brackets 4, and they are distributed on both sides of the drill pipe 2. A support rod 3 and a display 1 are provided on the L-shaped bracket 4. A level 22 is also provided on the motor box 8, and the level 22 is connected to the display 1 through a wireless network.

[0032] An electric telescopic rod 14 is also provided on the support plate 5. The telescopic end 15 of the electric telescopic rod 14 is connected to a brake block 16, and the brake block 16 acts on the limit disk 19.

[0033] A measuring method for a measuring device for geotechnical engineering investigation includes the following steps:

[0034] S1. Insert the bottom of the drill pipe 2 into and through the guide pipe 6. The controller starts the first motor 10 to drive the drill bit 9 to rotate, and presses down the drill pipe 2 to make the drill bit 9 drill a hole vertically downward. Due to the frictional force between the brake block 16 and the limit disk 19, the wire rope 7 can be tightened to fix the adjustment pipe 24 at the lower end of the sphere 25 and fix the drill bit 9; or the rotating shaft 17 can slowly rotate to release the wire rope 7 to enable the drill bit 9 to move down smoothly.

[0035] S2. Determine whether the hole is inclined through the level 22 and transmit the inclination data to the display 1. If the hole is inclined, the controller turns off the first motor 10, rotates the rotating shaft 17, and adjusts the angle of the adjustment pipe 24 by winding or loosening each wire rope 7, thereby adjusting the angle of the drill bit 9 until the drill bit 9 is perpendicular to the ground.

[0036] S3. Start the second motor 13. The second motor 13 drives the gear 12 to rotate, so that the gear 12 drives the drill pipe 2 to move down, and the drill pipe 2 drives the drill bit 9 to move down to drill a hole more smoothly.

[0037] The tightness and angle of the drill bit 9 are adjusted by the steel wire rope 7. During drilling, the drill bit 9 can be fixed to maintain the stability of the drilling 9. When the angle of the drill bit 9 needs to be adjusted, the steel wire rope 7 is loosened, and the angle of the drill bit 9 can be adjusted so that the drill bit 9 can always drill holes in a direction perpendicular to the ground, thus effectively ensuring the accuracy of measuring the groundwater level.

[0038] The level 22 can be used to determine whether the hole is inclined, and the inclination data is transmitted to the display 1. If the hole is inclined, the first motor 10 is turned off through the controller, and then the brake block 16 is driven to move slightly by the electric telescopic rod 14, weakening the degree of the brake block 16 pressing against the limit disc 19. Then the rotating shaft rotates, and the angles of the adjusting pipe 24 are adjusted by winding or unwinding each steel wire rope 7, thereby adjusting the angle of the drill bit 9 to make the drill bit 9 perpendicular to the ground. Then, the brake block 16 is driven by the electric telescopic rod 14 to press against the limit disc 19, and drilling continues.

[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A measuring device for geotechnical engineering investigation, comprising a drill pipe (2), characterized in that: A guide tube (6) is movably arranged on the outer wall of the drill pipe (2). A support plate (5) is connected to the guide tube (6). A plurality of brackets (18) and a plurality of through holes (20) are arranged on the support plate (5). The brackets (18) and the through holes (20) are evenly distributed around the drill pipe (2). A rotating shaft (17) is connected to the bracket (18). A limit disc (19) is installed on the rotating shaft (17). One end of a steel wire rope (7) is wound around the limit disc (19). The other end of the steel wire rope (7) passes through the through hole (20) and is connected to a disc (21). An adjusting tube (24) is arranged on the disc (21). A sphere (25) is placed at the upper end of the adjusting tube (24), and the lower end is connected to a motor box (8). A first motor (10) is fixed in the motor box (8). A rotating shaft (11) of the first motor (10) is connected downward to a drill bit (9). The sphere (25) is fixedly connected to the drill pipe (2). The bottom end of the drill pipe (2) is sleeved into the adjusting tube (24). A plurality of springs (23) are evenly distributed between the drill pipe (2) and the adjusting tube (24). One end of an L-shaped bracket (4) is also arranged on the support plate (5). The other end of the L-shaped bracket (4) is connected to a second motor (13). A gear (12) is connected to the second motor (13). The gear (12) acts on the drill pipe (2). There are two L-shaped brackets (4), which are distributed on both sides of the drill pipe (2). A support rod (3) and a display (1) are arranged on the L-shaped bracket (4). A level (22) is also arranged on the motor box (8). The level (22) is connected to the display (1) through a wireless network. An electric telescopic rod (14) is also arranged on the support plate (5). A telescopic end (15) of the electric telescopic rod (14) is connected to a brake block (16). The brake block (16) acts on the limit disc (19).

2. The measurement method of a measurement device for geotechnical engineering investigation according to claim 1, characterized in that, It includes the following steps: S1. Insert the bottom of the drill pipe (2) into and through the guide tube (6). The controller starts the first motor (10) to drive the drill bit (9) to rotate. Press down the drill pipe (2) to make the drill bit (9) drill vertically downward. Due to the frictional force between the brake block (16) and the limit disc (19), the steel wire rope (7) can be tightened to fix the adjusting tube (24) at the lower end of the sphere (25) and fix the drill bit (9). At the same time, the rotating shaft (17) can slowly rotate to release the steel wire rope (7) so that the drill bit (9) can move down smoothly. S2. Judge whether the hole is inclined through the level (22) and transmit the inclination data to the display (1). If the hole is inclined, the controller turns off the first motor (10), rotates the rotating shaft (17), and adjusts the angle of the adjusting tube (24) by winding or loosening each steel wire rope (7), so as to adjust the angle of the drill bit (9) and finally make the drill bit (9) perpendicular to the ground. S3. Start the second motor (13). The second motor (13) drives the gear (12) to rotate, causing the gear (12) to drive the drill pipe (2) to move downward. The drill pipe (2) drives the drill bit (9) to move downward, enabling smoother drilling.

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