CN118009851A - A rock and soil pile foundation hole depth measuring device and use method thereof - Google Patents

Abstract

The invention provides rock-soil pile foundation hole depth measuring equipment and a using method thereof. The invention can adjust and fix pile foundation holes with different sizes, ensures that the measuring head stably descends to the bottom of the pile foundation hole, can adjust the use height position, can eliminate liquid in the pile foundation hole in the use process, avoids the influence of the liquid on the detection, prevents floaters or particles in the liquid from influencing the descending of the measuring head, can timely detect the existence of the liquid, and solves the problem of incapability of timely recording.

Description

A rock and soil pile foundation hole depth measuring device and use method thereof

Technical Field

The present invention relates to the technical field of pile foundation measurement, and in particular to a rock and soil pile foundation hole depth measurement device and a use method thereof.

Background technique

The pile foundation hole is based on the foundation bearing capacity required by the design, and the pile depth and pile diameter are calculated based on the soil quality of each soil layer given by the survey and design, the friction coefficient of the soil, etc. Therefore, during the survey and construction of underground projects in geotechnical engineering, the depth and diameter of the pile foundation hole should be tested after the construction is completed to determine whether the pile foundation hole meets the requirements; generally, the depth of the pile foundation hole is measured using depth measuring equipment.

However, some existing pile foundation hole depth measurement devices for geotechnical engineering still have some shortcomings during use. For example, it is not convenient to adjust and fix pile foundation holes of different sizes for use, and it is impossible to ensure that the measuring head is stably lowered to the bottom of the hole. At the same time, it is not convenient to adjust the use height position of the measuring equipment; and the pile foundation hole is generally constructed deeper, and there will be liquids such as groundwater in the hole. The existing pile foundation hole depth measurement device is not convenient for eliminating the liquid in the pile foundation hole, resulting in the liquid affecting the detection. There will also be some floating objects or particles in the liquid that affect the lowering of the measuring head, and the presence of liquid cannot be detected in time, resulting in the inability to record in time. According to the sample situation of the liquid, a corresponding response plan can be made in time.

Summary of the invention

In view of the defects existing in the background technology, the present invention provides a geotechnical pile foundation hole depth measuring device and a method for using the same. The measuring device can be adjusted for use according to the diameter of the pile foundation hole so that it can be cooled to the bottom of the hole along with the temperature of the pile foundation hole. The device can also monitor whether there is liquid in the hole and conveniently eliminate the liquid in the pile foundation hole to avoid the presence of liquid and floating objects on the liquid affecting the normal operation of the measuring probe.

In order to achieve the above-mentioned purpose, the present invention provides a rock and soil pile foundation hole depth measurement equipment, including an operating table and a depth measuring head, a plurality of support frames are arranged around the operating table, a detection hole is arranged in the middle of the operating table, a reel support frame and a winding drum are installed above the detection hole of the operating table, the depth measuring probe is installed under the operating table through a hanging rope, and the other end of the hanging rope passes through the detection hole and is wound on the winding drum, characterized in that: the hanging rope is provided with a scale line, or the scale rope is directly used as the hanging rope, and a height angle adjustment component is arranged on each support frame, and the height angle adjustment component is used to adjust the height and angle of the disc operating table; a vibration motor is fixedly installed on the top of the depth measuring head, a camera is fixedly installed on the bottom of the depth measuring head, a liquid sensor is fixedly installed on one side of the camera, and the depth measuring head is also provided with a pile foundation aperture adjustment adapter mechanism and a gas-liquid injection mechanism;

The pile foundation aperture adjustment adapter mechanism comprises a plurality of threaded adjustment holes provided on the housing of the depth measuring probe and a detection position adjustment rod correspondingly installed in each threaded adjustment hole, wherein the detection position adjustment rod is a threaded rod adapted to the threaded adjustment hole, a guide wheel is provided at the outer end thereof, and an elastic buffer component is provided at the connection portion between the guide wheel and the detection position adjustment rod; the pile foundation aperture adjustment adapter mechanism is used for adjusting and adapting the detection of pile foundation holes with different inner diameters;

The gas-liquid injection mechanism includes a plug-in tube vertically penetrating and installed in the depth measuring probe and a jet water spray ring placed at the bottom of the depth measuring probe. A corresponding installation slot is opened on the depth measuring probe. The plug-in tube is movably installed in the joint installation slot, a hose joint is provided at the upper end, and the lower end is connected to the jet water spray ring, and a plurality of spray holes are opened on the jet water spray ring. The gas-liquid injection mechanism is used to extract liquid in the pile foundation and blow air to remove particles that affect the falling of the depth measuring head.

The better technical solution of the present invention is as follows: the operating table is a disc operating table, the support frame is provided with six groups, and the six groups of support frames are welded in a ring around the disc operating table, the height angle adjustment assembly includes a support height adjustment rod, a handwheel and a universal ball head seat, the support height adjustment rod is threadedly connected to the inside of the support frame, the handwheel is welded to the top of the support height adjustment rod, the universal ball head seat is fixedly installed on the bottom of the support height adjustment rod, and a strip level is also installed on the top surface of the operating table, and the strip level is detachably installed on one side of the top of the disc operating table by bolts.

The preferred technical solution of the present invention is as follows: the depth measuring probe is a cylindrical structure, and two groups of threaded adjustment holes are evenly opened on the upper and lower parts thereof, and each group of threaded adjustment holes includes a plurality of threaded adjustment holes distributed in an annular manner and at equal intervals; a roller shaft frame is provided at the end of the detection position adjustment rod, and the roller shaft frame is connected to the detection position adjustment rod by at least two groups of mounting bolts, and at least two groups of mounting ears are correspondingly provided on the detection position adjustment rod, and each mounting bolt is slidably installed on the roller shaft frame and threadedly connected to the corresponding mounting ear; the guide wheel is rotatably installed on the inside of the roller shaft frame by an axle pin, and its roller surface is consistent with the depth direction of the pile foundation hole; the elastic buffer assembly is installed between the roller shaft frame and the detection position adjustment rod.

A better technical solution of the present invention: the mounting slot is arranged on one side of the top of the depth measuring head and passes through the depth measuring head, and does not overlap with the detection position adjustment rod and the position of the measuring component inside the depth measuring head; the hose connector is threadedly connected to the top of the plug-in tube, and a plurality of spray holes are provided, which are evenly and equidistantly opened on the surface of the jet water spray ring, and the hose connector is plugged into and matched with an external hose.

The better technical solution of the present invention is as follows: the reel support frame is welded to both sides of the top surface of the operating table, the winding drum is rotatably installed on the inner side of the reel support frame, a reduction motor is provided on the winding drum, the reduction motor is fixedly installed on one side of the reel support frame and the output end passes through the reel support frame and the winding drum transmission installation, an adjusting spacer is fixedly installed on the surface of the winding drum; a connecting frame is detachably installed on the top of the depth measuring head by bolts, and the lower end of the lifting rope is fixed to the center position of the connecting frame.

A better technical solution of the present invention: three annularly distributed mounting columns are welded around the detection hole, a pipeline guide frame is provided directly above the detection hole, a bottom triangular bracket of the pipeline guide frame is detachably connected to the three mounting columns by bolts; a rope hole is opened at the top of the pipeline guide frame, and a hose rack is welded to one side of the top of the pipeline guide frame.

A better technical solution of the present invention: the elastic buffer assembly includes a sliding sleeve, a spring and a sliding groove, the sliding sleeve is welded to the center of the roller shaft frame close to the detection position adjustment rod, the spring is arranged inside the sliding sleeve, and one end contacts the inner wall of the sliding groove, and the other end contacts one side of the inner wall of the sliding sleeve, and the sliding groove is opened on the side of the detection position adjustment rod close to the roller shaft frame and slides with the sliding sleeve.

A preferred technical solution of the present invention is as follows: a flat cut surface is provided on one side of the detection position adjustment rod, and a scale groove is provided on the flat cut surface.

In order to achieve the above technical objectives, the present invention also provides a method for using a geotechnical pile foundation hole depth measurement device, and the specific steps of the method are as follows:

S1. Install the operating table above the pile foundation hole, with the center of the detection hole facing the center of the pile foundation hole, and adjust the operating table to be horizontal and vertical with the pile foundation hole through the height angle adjustment component on the support frame, then align the depth measuring head with the pile foundation hole, and twist multiple detection position adjustment rods to a position that matches the inner wall of the pile foundation hole;

S2, connect a hose to the top section of the plug-in pipe, notify the reel to rotate, and slowly put the depth measuring head into the pile foundation hole in cooperation with the lifting rope; during the descent of the depth measuring head, if it encounters a hole section where the descent is slow and blocked, start the vibration motor to make the depth measuring head quickly pass through the hole section where it is difficult to fall, and connect the hose to the air pump, and use the jet water spray ring of the gas-liquid injection mechanism to pump air, and blow air to remove particles that fall due to the guide wheel hitting the wall or the vibration of the vibration motor; at the same time, during the descent process, observe the situation in the hole through the camera, and when it is determined through the camera that the depth measuring head cannot descend normally due to the presence of liquid, connect the hose to the water pump, start the external water pump, and extract the liquid inside the pile foundation hole through the hose and the plug-in pipe;

S3. Smoothly lower the depth measuring head to the bottom of the pile foundation, determine the depth by reading the scale of the lifting rope, and then start the reduction motor again to pull the depth measuring head upward to complete the pile foundation hole depth measurement.

A better technical solution of the present invention is as follows: when the depth measuring head is lowered to the bottom of the pile foundation, if the camera observes that there is liquid at the bottom of the pile foundation, a liquid sample is extracted through an external water pump in cooperation with a plug-in tube and a jet water spray ring, and timely detection is performed to ensure construction safety. If the liquid is safe, the pile foundation hole depth measurement is completed according to step S3; if the liquid is unsafe, the hose is connected to the water pump, the external water pump is started, and the liquid inside the pile foundation hole is extracted through the hose in cooperation with the plug-in tube, and then the pile foundation hole depth measurement is completed according to step S3.

Beneficial effects of the present invention:

1. The operating table in the present invention is provided with a height angle adjustment component, which can enable the height angle adjustment component to adjust the height and angle of the disc operating table. The depth measuring head is provided with a pile foundation aperture adjustment adapter mechanism, which is convenient for adapting to pile foundation hole detection with different inner diameters; and the pile foundation aperture adjustment adapter mechanism includes a detection position adjustment rod and a threaded adjustment hole opened on the pile foundation detection head, the threaded adjustment hole can facilitate the spiral adjustment insertion of the detection position adjustment rod, change the external extension length of the detection position adjustment rod, so that it can match the pile foundation aperture, and a guide wheel is provided at the end of the detection position adjustment rod, which can contact the inner wall of the pile foundation hole, to ensure that the depth measuring head can be stably lowered into the pile foundation hole along the pile foundation hole wall.

2. The present invention provides a gas-liquid injection mechanism and a liquid sensor on the depth measuring head, and the liquid sensor can perform liquid detection and depth exploration; the gas-liquid injection mechanism includes a plug-in tube penetrating the depth measuring head and a jet water spray ring located at the bottom of the depth measuring head, the jet water spray ring is provided with a hole, and a hose connector is provided on the plug-in tube to facilitate connection with an external hose, and is fixedly installed with the plug-in tube, so that the jet water spray ring has the ability of jet water spray and adsorption; the holes on the jet water spray ring can be used for both jetting and water absorption, and can also prevent large particles from being sucked in and blocking the jet water spray ring.

2. In the present invention, by providing the support height adjustment rod, hand wheel, universal ball head seat and strip level, it is possible to rotate the hand wheel to drive the support height adjustment rod to rotate so as to drive the universal ball head seat up and down. Subsequently, the horizontal position of the disc operating table is changed by changing the position of the support height adjustment rod inside the support frame, and the horizontal standard is detected by the strip level. After reaching the horizontal position, the pile foundation depth can be measured, wherein the universal ball head seat can provide stable support for different inclination angles.

4. The pile foundation aperture adjustment adapter mechanism in the present invention is also provided with a sliding sleeve, a spring and a sliding groove. The sliding sleeve is slidably connected with the sliding groove, so that the roller shaft frame can be prevented from shaking up and down. At the same time, the elastic force of the spring can realize elastic buffering of the knocking force of the guide wheel to ensure the service life; and the installation of the guide wheel and the adjusting rod is realized by the cooperation of the mounting bolt and the mounting ear thread, which is convenient for maintenance and use. At the same time, when the mounting bolt is connected with the mounting ear, a gap is created between the roller shaft frame and the detection position adjusting rod to facilitate the release of the elastic force of the spring.

5. The present invention also provides a mounting column and a pipeline guide frame. The mounting column can increase the height of the pipeline guide frame to prevent the vibrating part and the connecting part on the top of the depth measuring head from being damaged; the pipeline guide frame includes a rope hole, a hose rack and an adjusting spacer. The rope hole can facilitate the stable and vertical lowering of the nylon rope, while the hose rack facilitates the lowering of the hose, and the adjusting spacer can separate the nylon rope and the hose to avoid entanglement with each other.

6. The detection position adjustment rod of the present invention is provided with a flat section and a scale groove. The flat section facilitates observation of the scale of the scale groove, and the detection position adjustment rod can be effectively adjusted to fit the pile foundation hole according to the scale groove.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main structure of the present invention;

FIG2 is an enlarged structural schematic diagram of part A in FIG1 ;

FIG3 is a schematic diagram of the three-dimensional structure of the reel support frame of the present invention;

FIG4 is a schematic diagram of an exploded three-dimensional structure of a depth measuring head according to the present invention;

FIG5 is a partially cutaway three-dimensional structural schematic diagram of a depth measuring head of the present invention;

FIG. 6 is a schematic diagram of the exploded three-dimensional structure of the detection position adjustment rod of the present invention.

In the figure: 1. operating table; 2. support frame; 3. support height adjustment rod; 4. hand wheel; 5. universal ball head seat; 6. pipeline guide frame; 601. rope hole; 602. hose rack; 7. strip level; 8. reel support frame; 9. reel drum; 900. adjustment spacer; 10. lifting rope; 11. reduction motor; 12. mounting column; 13. depth measuring head; 14. threaded adjustment hole; 141. detection position adjustment rod; 142. roller shaft frame; 143. guide wheel; 144. mounting bolt; 145. mounting ear; 15. camera; 16. joint installation slot; 171. plug-in tube; 172. hose joint; 173. jet water spray ring; 174. spray hole; 18. connecting frame; 19. vibration motor; 201. sliding sleeve; 202. spring; 203. sliding groove; 21. scale groove; 22. liquid sensor.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

An embodiment provides a geotechnical pile foundation hole depth measuring device, referring to Figures 1-6, comprising a disc operating platform 1, a support frame 2, a reel support frame 8, a winding drum 9, a reduction motor 11 and a depth measuring head 13. A detection hole is opened at the center of the disc operating platform 1, and the support frame 2 is provided with six groups, and the six groups of support frames 2 are welded in a ring around the disc operating platform 1, and the reel support frame 8 is welded above the detection hole of the disc operating platform 1. The winding drum 9 is rotatably mounted on the inner side of the reel support frame 8, and the reduction motor 11 is fixedly mounted on one side of the reel support frame 8 and the output end passes through the reel support frame 8 and is driven and installed with the winding drum 9. The depth measuring head 13 is arranged at the bottom of the disc operating platform 1 and is used in conjunction with the winding drum 9 through an external lifting rope. The lifting rope is provided with scale lines, or the scale rope is directly used as the lifting rope, and the depth measuring head 13 is driven to rise and fall along the pile foundation hole under the action of the winding drum 9. A vibration motor 19 is fixedly mounted at the center of the top of the depth measuring head 13 , a connecting frame 18 is detachably mounted on the top of the depth measuring head 13 via bolts, a camera 15 is fixedly mounted on the bottom of the depth measuring head 13 , and a liquid sensor 22 is fixedly mounted on one side of the camera 15 .

An embodiment provides a geotechnical pile foundation hole depth measuring device, as shown in Figure 1, wherein each support frame 2 is provided with a height angle adjustment component, and the height angle adjustment component is used to adjust the height and angle of the disc operating platform 1; the height angle adjustment component includes a support height adjustment rod 3, a handwheel 4 and a universal ball head seat 5, the support height adjustment rod 3 is threadedly connected to the inside of the support frame 2, the handwheel 4 is welded to the top of the support height adjustment rod 3, the universal ball head seat 5 is fixedly installed at the bottom of the support height adjustment rod 3, and a strip level 7 is installed on the operating platform 1, and the strip level 7 is detachably installed on one side of the top of the disc operating platform 1 by bolts, and the height angle adjustment component is used to adjust the height and angle of the disc operating platform 1.

An embodiment provides a geotechnical pile foundation hole depth measurement device, as shown in Figures 1, 2 and 4, wherein a pile foundation aperture adjustment adapter mechanism is provided inside the depth measuring head 13, and the pile foundation aperture adjustment adapter mechanism is used to adjust and adapt to pile foundation hole detection with different inner diameters; a gas-liquid injection mechanism is provided on one side of the top of the depth measuring head 13, and the gas-liquid injection mechanism is used to extract liquid in the pile foundation and simply remove particles that affect the falling of the depth measuring head 13. The pile foundation aperture adjustment adapter mechanism includes a threaded adjustment hole 14, a detection position adjustment rod 141, a roller shaft frame 142, a guide wheel 143, a mounting bolt 144, a mounting ear 145 and an elastic buffer component. The threaded adjustment hole 14 is provided with two groups, which are respectively opened at the upper and lower parts of the outer shell of the depth measuring head 13. Each group of threaded adjustment holes 14 has six holes and are distributed in a circular shape with equal distances. The setting of the threaded adjustment holes 14 does not affect the installation of the measuring components inside the depth measuring head 13. The detection position adjustment rod 141 is threadedly connected to the inside of the threaded adjustment hole 14. A flat cut surface is provided on one side of the detection position adjustment rod 141, and a scale groove 21 is provided on the flat cut surface. The roller shaft frame 142 is arranged at one end away from the detection position adjustment rod 141, the guide wheel 143 is rotatably installed inside the roller shaft frame 142 through an axle pin, the mounting bolt 144 is slidably installed on the top and bottom of the roller shaft frame 142 and penetrates the roller shaft frame 142 and is threadedly connected with the mounting ear 145, the mounting ear 145 is welded to the top and bottom of the detection position adjustment rod 141 close to the roller shaft frame 142, and the elastic buffer component is arranged on one side of the roller shaft frame 142 close to the detection position adjustment rod 141. As shown in Figure 6, the elastic buffer component includes a sliding sleeve 201, a spring 202 and a sliding groove 203. The sliding sleeve 201 is welded to the roller shaft frame 142 is located at the center of one side of the detection position adjustment rod 141, the spring 202 is arranged inside the sliding sleeve 201, and one end contacts the inner wall of the sliding groove 203, and the other end contacts one side of the inner wall of the sliding sleeve 201. The sliding groove 203 is arranged on the side of the detection position adjustment rod 141 close to the roller shaft frame 142 and slides with the sliding sleeve 201. The pile foundation aperture adjustment adaptation mechanism is used to adjust and adapt to the detection of pile foundation holes with different inner diameters. When making specific adjustments, it is only necessary to rotate each detection position adjustment rod 141 to extend or shorten it, so as to adapt to pile foundation holes with different inner diameters. The adjustment process is performed according to the pile foundation hole before the measuring head is lowered.

An embodiment provides a geotechnical pile foundation hole depth measuring device, as shown in Figures 1, 2, 4 and 5, a gas-liquid injection mechanism is provided on one side of the top of the depth measuring head 13, the gas-liquid injection mechanism includes a joint mounting slot 16, a plug-in tube 171, a hose joint 172, a jet water spray ring 173 and a spray hole 174, the joint mounting slot 16 is provided on one side of the top of the depth measuring head 13, the plug-in tube 171 is movably installed on the inner wall of the joint mounting slot 16, the hose joint 172 is threadedly connected to the top of the plug-in tube 171, the bottom of the plug-in tube 171 is connected to the top of the jet water spray ring 173, the spray hole 174 is provided on the surface of the jet water spray ring 173, the hose joint 172 is plugged into and matched with an external hose, and the gas-liquid injection mechanism is used to extract liquid in the pile foundation and simply remove particles that affect the falling of the depth measuring head 13.

In the embodiment, in order to facilitate the stable winding of the lifting rope, three annularly distributed mounting columns 12 are welded around the detection hole of the disc operating platform 1, a pipeline guide frame 6 is arranged on the top of the disc operating platform 1, a rope hole 601 is opened on the top of the pipeline guide frame 6, a hose rack 602 is welded on one side of the top of the pipeline guide frame 6, an adjustable spacer 900 is fixedly installed on the surface of the winding drum 9, and the bottom triangle of the pipeline guide frame 6 is detachably mounted with the mounting column 12 by bolts. The lifting rope 10 passes through the rope hole 601 and is connected to the depth measuring head 13, and the hose rack 602 can guide the external hose.

The method for using the geotechnical pile foundation hole depth measuring device in the embodiment is as follows:

S1, install the operating platform 1 above the pile foundation hole, with the center of its detection hole facing the center of the pile foundation hole, and adjust the operating platform 1 to be horizontal and vertical with the pile foundation hole through the height angle adjustment component on the support frame 2, then align the depth measuring head with the pile foundation hole, and twist the multiple detection position adjustment rods 141 to a position that matches the inner wall of the pile foundation hole;

S2, connect a hose to the top section of the plug-in tube 171, notify the reel 9 to rotate, and cooperate with the lifting rope 10 to slowly put the depth measuring head 13 into the pile foundation hole; during the descent process of the depth measuring head 13, if it encounters a hole section where the descent is slow and blocked, start the vibration motor 19 to make the depth measuring head 13 quickly pass through the hole section that is difficult to fall, and connect the hose to the air pump, pump air through the jet water spray ring 173 of the gas-liquid injection mechanism, and blow air to remove particles that are caused by the guide wheel 143 hitting the wall or the vibration of the vibration motor 19. At the same time, during the descent process, observe the situation in the hole through the camera 15. When it is determined through the camera 15 that the depth measuring head 13 cannot descend normally due to the presence of liquid, connect the hose to the water pump, start the external water pump to extract the liquid inside the pile foundation hole through the hose and the plug-in tube 171;

S3, smoothly lower the depth measuring head 13 to the bottom of the pile foundation, determine the depth by reading the scale of the suspension rope, and then start the reduction motor 11 again to pull the depth measuring head 13 upward to complete the pile foundation hole depth measurement. When the depth measuring head 13 is lowered to the bottom of the pile foundation, if the camera 15 observes that there is liquid at the bottom of the pile foundation, extract the liquid sample through the external water pump in conjunction with the plug-in tube 171 and the jet water ring 173, and conduct timely inspection to ensure the construction safety. If the liquid is safe, complete the pile foundation hole depth measurement according to step S3; if the liquid is not safe, connect the hose to the water pump, start the external water pump to extract the liquid inside the pile foundation hole through the hose in conjunction with the plug-in tube 171, and then complete the pile foundation hole depth measurement according to step S3.

However, as is well known to those skilled in the art, the working principles and wiring methods of bar levels, cameras, vibration motors, liquid sensors and reduction motors are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

In the present invention, when performing depth measurement, the detection position adjustment rod 141 is rotated and adjusted according to the scale groove 21 so that the extended lengths of multiple groups of detection position adjustment rods 141 are the same and fit with the pile foundation hole, and then the end of the nylon rope away from the winding drum 9 is fastened and fixed to the top of the connecting frame 18, the hose and the hose connector 172 are plugged and fixed, and then put into the pile foundation hole, and then the winding drum 9 is driven to rotate by starting the reduction motor 11, and the depth measuring head 13 is lowered by the nylon rope unwound from the surface of the rotating winding drum 9. During the lowering process, liquid detection and depth exploration are performed through the camera 15 and the liquid sensor 22. When the liquid is sent down through the liquid sensor 22, When the water pump connected to the hose is started, the hose connector 172 is used to transmit the suction to the plug tube 171 and the jet water ring 173. The liquid is then sucked through the spray hole 174 for partial testing to confirm whether the liquid is harmful or abnormal. If there is no abnormality, the device is lowered for use. If there is an abnormality, the liquid is extracted to facilitate further lowering. When a hole section that is prone to jamming is encountered, the vibration motor 19 can be started to vibrate the depth measuring head 13. The roller shaft frame 142 that moves away from the depth measuring head 13 is adjusted by the detection position, and the spring 202 is elastically contracted to continue lowering to ensure the stability of the depth measurement. When it is placed at the bottom, the camera 15 can complete the observation.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (10)

1. A rock pile foundation hole depth measurement device, comprising an operating table (1) and a depth measuring head (13), wherein a plurality of support frames (2) are arranged around the operating table (1), a detection hole is arranged in the middle of the operating table (1), a reel support frame (8) and a reel (9) are installed above the detection hole of the operating table (1), the depth measuring probe (13) is installed below the operating table (1) through a suspension rope (10), the other end of the suspension rope (10) passes through the detection hole and is wound on the reel (9), and the characteristics are as follows: the suspension rope (1 0) is provided with a scale line, and each support frame (2) is provided with a height angle adjustment component, and the height angle adjustment component is used to adjust the height and angle of the disc operating table (1); a vibration motor (19) is fixedly installed on the top of the depth measuring head (13), a camera (15) is fixedly installed on the bottom of the depth measuring head (13), and a liquid sensor (22) is fixedly installed on one side of the camera (15); the depth measuring head (13) is also provided with a pile foundation aperture adjustment adapter mechanism and a gas-liquid injection mechanism; The pile foundation aperture adjustment adapting mechanism comprises a plurality of threaded adjustment holes (14) provided on the outer shell of the depth measuring probe (13) and a detection position adjustment rod (141) correspondingly installed in each threaded adjustment hole (14); the detection position adjustment rod (141) is a threaded rod adapted to the threaded adjustment hole (14), a guide wheel (143) is provided at the outer end thereof, and an elastic buffer component is provided at the connection portion between the guide wheel (143) and the detection position adjustment rod (141); the pile foundation aperture adjustment adapting mechanism is used for adjusting and adapting the detection of pile foundation holes with different inner diameters; The gas-liquid injection mechanism comprises a plug-in tube (171) vertically penetrating and installed in the depth measuring probe (13) and an air jet water spray ring (173) disposed at the bottom of the depth measuring probe (13); a corresponding installation slot (16) is provided on the depth measuring probe (13); the plug-in tube (171) is movably installed in the joint installation slot (16); a hose joint (172) is provided at the upper end; the lower end is connected to the air jet water spray ring (173); and a plurality of spray holes (174) are provided on the air jet water spray ring (173); the gas-liquid injection mechanism is used for extracting liquid in the pile foundation and blowing air to remove particles that affect the falling of the depth measuring head (13). 2. A geotechnical pile foundation hole depth measuring equipment according to claim 1, characterized in that: the operating table (1) is a disc operating table, the support frame (2) is provided with six groups, and the six groups of support frames (2) are welded in a ring around the disc operating table (1), the height angle adjustment assembly comprises a support height adjustment rod (3), a hand wheel (4) and a universal ball head seat (5), the support height adjustment rod (3) is threadedly connected to the inside of the support frame (2), the hand wheel (4) is welded to the top of the support height adjustment rod (3), the universal ball head seat (5) is fixedly installed at the bottom of the support height adjustment rod (3), and a strip level (7) is also installed on the top surface of the operating table (1), and the strip level (7) is detachably installed on one side of the top of the disc operating table (1) by bolts. 3. A geotechnical pile foundation hole depth measuring device according to claim 1 or 2, characterized in that: the depth measuring probe (13) is a cylindrical structure, and two groups of threaded adjustment holes are evenly opened on the upper and lower parts thereof, and each group of threaded adjustment holes includes a plurality of threaded adjustment holes (14) distributed in an annular manner and at equal intervals; a roller shaft frame (142) is provided at the end of the detection position adjustment rod (141), and the roller shaft frame (142) is connected to the detection position adjustment rod (141) through at least two groups of mounting bolts (144), and at least two groups of mounting ears (145) are correspondingly provided on the detection position adjustment rod (141), and each mounting bolt (144) is slidably mounted on the roller shaft frame (142) and threadedly connected to the corresponding mounting ear (145); the guide wheel (143) is rotatably mounted inside the roller shaft frame (142) through an axle pin, and its roller surface is consistent with the depth direction of the pile foundation hole; the elastic buffer component is installed between the roller shaft frame (142) and the detection position adjustment rod (141). 4. A geotechnical pile foundation hole depth measuring device according to claim 1 or 2, characterized in that: the mounting slot (16) is arranged on one side of the top of the depth measuring head (13), and passes through the depth measuring head (13), and does not overlap with the detection position adjustment rod (141) and the internal measuring component position of the depth measuring head (13); the hose connector (172) is threadedly connected to the top of the plug-in tube (171), and the spray holes (174) are provided with a plurality of holes, which are evenly and equidistantly opened on the surface of the jet water spray ring (173), and the hose connector (172) is plugged into and matched with an external hose. 5. A geotechnical pile foundation hole depth measuring equipment according to claim 1 or 2, characterized in that: the reel support frame (8) is welded on both sides of the top surface of the operating table (1), the winding drum (9) is rotatably installed on the inner side of the reel support frame (8), and a reduction motor (11) is provided on the winding drum (9), the reduction motor (11) is fixedly installed on one side of the reel support frame (8) and the output end passes through the reel support frame (8) and the winding drum (9) for transmission installation, and an adjusting spacer (900) is fixedly installed on the surface of the winding drum (9); a connecting frame (18) is detachably installed on the top of the depth measuring head (13) by bolts, and the lower end of the lifting rope (10) is fixed at the center position of the connecting frame (18). 6. A geotechnical pile foundation hole depth measuring device according to claim 1 or 2, characterized in that: three annularly distributed mounting columns (12) are welded around the detection hole, a pipeline guide frame (6) is provided directly above the detection hole, and the bottom triangular bracket of the pipeline guide frame (6) is detachably connected to the three mounting columns (12) by bolts; a rope hole (601) is opened at the top of the pipeline guide frame (6), and a hose rack (602) is welded to one side of the top of the pipeline guide frame (6). 7. A geotechnical pile foundation hole depth measuring device according to claim 3, characterized in that: the elastic buffer component comprises a sliding sleeve (201), a spring (202) and a sliding groove (203), the sliding sleeve (201) is welded to the center of the roller shaft frame (142) close to the detection position adjustment rod (141), the spring (202) is arranged inside the sliding sleeve (201), and one end contacts the inner wall of the sliding groove (203), and the other end contacts one side of the inner wall of the sliding sleeve (201), and the sliding groove (203) is opened on the side of the detection position adjustment rod (141) close to the roller shaft frame (142) and slidably cooperates with the sliding sleeve (201). 8. A rock and soil pile foundation hole depth measuring device according to claim 3, characterized in that a flat cut surface is provided on one side of the detection position adjustment rod (141), and a scale groove (21) is provided on the flat cut surface. 9. A method for using the rock pile foundation hole depth measurement device according to any one of claims 1 to 8, characterized in that the method comprises the following specific steps: S1. Install the operating table above the pile foundation hole, with the center of the detection hole facing the center of the pile foundation hole, and adjust the operating table to be horizontal and vertical with the pile foundation hole through the height angle adjustment component on the support frame, then align the depth measuring head with the pile foundation hole, and twist multiple detection position adjustment rods to a position that matches the inner wall of the pile foundation hole; S2, connect a hose to the top section of the plug-in pipe, notify the reel to rotate, and slowly put the depth measuring head into the pile foundation hole in cooperation with the lifting rope; during the descent of the depth measuring head, if it encounters a hole section where the descent is slow and blocked, start the vibration motor to make the depth measuring head quickly pass through the hole section where it is difficult to fall, and connect the hose to the air pump, and use the jet water spray ring of the gas-liquid injection mechanism to pump air, and blow air to remove particles that fall due to the guide wheel hitting the wall or the vibration of the vibration motor; at the same time, during the descent process, observe the situation in the hole through the camera, and when it is determined through the camera that the depth measuring head cannot descend normally due to the presence of liquid, connect the hose to the water pump, start the external water pump, and extract the liquid inside the pile foundation hole through the hose and the plug-in pipe; S3. Smoothly lower the depth measuring head to the bottom of the pile foundation, determine the depth by reading the scale of the lifting rope, and then start the reduction motor again to pull the depth measuring head upward to complete the pile foundation hole depth measurement. 10. The method for using the geotechnical pile foundation hole depth measurement device according to claim 9 is characterized in that: when the depth measuring head is lowered to the bottom of the pile foundation, if liquid is observed at the bottom of the pile foundation through a camera, a liquid sample is extracted through an external water pump in cooperation with a plug-in tube and a jet water spray ring, and timely detection is performed to ensure construction safety. If the liquid is safe, the pile foundation hole depth measurement is completed according to step S3; if the liquid is unsafe, a hose is connected to the water pump, and the external water pump is started to extract the liquid inside the pile foundation hole through the hose in cooperation with the plug-in tube, and then the pile foundation hole depth measurement is completed according to step S3.