CN112082809A - Electric sampling device and sampling method for accurately obtaining rock mass structural plane - Google Patents
Electric sampling device and sampling method for accurately obtaining rock mass structural plane Download PDFInfo
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- CN112082809A CN112082809A CN202011123632.9A CN202011123632A CN112082809A CN 112082809 A CN112082809 A CN 112082809A CN 202011123632 A CN202011123632 A CN 202011123632A CN 112082809 A CN112082809 A CN 112082809A
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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Abstract
The invention discloses an electric sampling device and a sampling method for accurately acquiring a rock mass structural plane, wherein the sampling device comprises a base, a supporting rod perpendicular to the base is arranged at the top of the base, the end part of the supporting rod is connected with a supporting plate through a rudder, and the rudder is used for driving the supporting plate to rotate in the vertical direction and the horizontal direction; the support plate is connected with an electric hand drill in a sliding manner; the sampling tube can be driven to synchronously rotate in the vertical direction and the horizontal direction along with the support plate through the rudder, so that the sampling angle can be conveniently and accurately adjusted, the sampling error is reduced, and the accuracy of a subsequent test result is ensured; according to the invention, the sampling tube is slowly drilled into the rock mass in the cavern by adopting the electric hand drill, so that the rock mass is prevented from being damaged by disturbance of the sampling tube, the integrity of the undisturbed rock mass is ensured as much as possible, the subsequent test is convenient, and the test error is reduced; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
Description
Technical Field
The invention relates to the technical field of geotechnical exploration engineering, in particular to an electric sampling device and a sampling method for accurately acquiring a rock mass structural plane.
Background
With the acceleration of large-scale engineering construction in the industries of construction, municipal administration, traffic and the like, the survey design level is rapidly developed, and the requirement for taking rock mass samples is improved. At present, the sampling rock mass structural plane is always required to be kept in an original state. However, in the processes of sampling operation, sample packaging, storage and transportation, the rock mass structural plane is easy to disturb and destroy the original structural system, so that the original rock mass structural plane is difficult to sample and even fails to sample. Particularly, in a rock mass structural plane test, the test simulation needs to be carried out aiming at the in-situ stress direction of the structural plane, so that the extremely high requirement is provided for the sampling of the rock mass structural plane, the sampling needs to be carried out at a specific sampling angle, and the sampling angle comprises a sampling azimuth angle in the horizontal direction and a sampling inclination angle in the vertical direction.
At present, the sampling mode of rock mass in the cavern is complex, and sampling tools comprise a chisel and a hammer. The method specifically comprises the following steps: the operator hammers the chisel with a hammer and the chisel strips the small rock mass being sampled from the large rock mass. This approach has the following disadvantages: firstly, the inclination and the deviation of a chisel are easy to occur by adopting a hammering method, and in the hammering process, the rock mass is caused to generate larger vibration damage, the original structure system of the rock mass, particularly a structure surface, is damaged, and the sampling of the undisturbed rock mass fails; secondly, the sampling angle is not easy to control, the visual inspection judgment of operators with rich experience is completely relied on, the error of the sampling angle is large, and the subsequent test result is influenced; thirdly, the labor intensity of manually hammering the rock mass is high, and the sampling efficiency is low.
In conclusion, the existing sampling device for the undisturbed rock mass structural plane of the cavern has certain technical defects. In the sampling operation process, the original rock mass of sample can produce very big disturbance and destroy, and the operation flow is comparatively complicated simultaneously, intensity of labour is big, sampling error is big, the success rate of sampling is lower.
Disclosure of Invention
Aiming at the technical problems of high labor intensity, large sampling error and large disturbance damage to the rock mass of the undisturbed rock mass sampling device, the invention provides the electric sampling device and the sampling method which have the advantages of simple structure, small sampling error and small rock mass disturbance and can accurately obtain the rock mass structural plane.
The technical scheme adopted by the invention is as follows: an electric sampling device for accurately acquiring a rock mass structural plane comprises a base, wherein a supporting rod perpendicular to the base is arranged at the top of the base, the end part of the supporting rod is connected with a supporting plate through a rudder, and the rudder is used for driving the supporting plate to rotate in the vertical direction and the horizontal direction; the support plate is connected with an electric hand drill in a sliding manner, a sliding rail is arranged on the support plate, and a sliding groove matched with the sliding rail is arranged on the electric hand drill; the electric hand drill is connected with the hollow cylindrical sampling tube through the connecting rod. The sampling tube can be driven to synchronously rotate in the vertical direction and the horizontal direction along with the support plate through the rudder, so that the sampling angle can be conveniently and accurately adjusted, the sampling error is reduced, and the accuracy of a subsequent test result is ensured. The electric hand drill slides on the sliding rail on the support plate through the sliding groove, so that the accuracy of the sliding process is ensured, and the deflection in the sliding process is avoided. During sampling, the sampling angle of the sampling tube is adjusted through the rudder at a preset sampling position, and then the electric hand drill drives the sampling tube to drill into the rock mass of the cavern for sampling. According to the invention, the sampling tube is slowly drilled into the rock mass in the cavern by adopting the electric hand drill, so that the rock mass is prevented from being damaged by disturbance of the sampling tube, the integrity of the undisturbed rock mass is ensured as much as possible, the subsequent test is convenient, and the test error is reduced; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
Furthermore, the base is provided with a fixing nail perpendicular to the base, and the fixing nail can be buried below the bottom of the cavity, so that the stability of the base is enhanced.
Furthermore, the fixing nail is in threaded connection with the base, so that the height of the fixing nail in the vertical direction is adjustable; if the bottom surface of the cavern is uneven, different fixing nails are controlled to be screwed into the ground to different depths, so that the base level is adjusted.
Further, a connecting cylinder is arranged between the connecting rod and the sampling tube; a transparent observation window is arranged on the connecting cylinder. The connecting cylinder is used as a connecting piece, so that the connecting rod is conveniently connected with the sampling tube; meanwhile, the observation window on the connecting cylinder is convenient for operators to observe the rock mass condition in the sampling pipe in real time.
Further, the sampling tube is in threaded connection with the connecting cylinder, and a first bolt for fixing the sampling tube and the connecting cylinder is arranged on the connecting cylinder. The sampling tube can be detached from the connecting cylinder, so that the subsequent packaging and transportation of the sampling tube are facilitated; the threaded connection mode has the characteristics of simple structure and convenience and quickness in disassembly and assembly; first bolt is used for fixed connection section of thick bamboo and sampling tube, avoids both not hard up at the pivoted in-process.
Further, the end part of the sampling tube is provided with a cutting edge, and the cutting edge is provided with cutting teeth. The cutting edge reduces the contact area of the sampling tube and the rock mass, so that the sampling tube can be conveniently drilled into the rock mass, and time and labor are saved; the edge teeth are similar to the principle of a drag saw, and can more smoothly drill into a rock body in the radial direction of the sampling tube.
Furthermore, the support rods comprise at least two sleeved support rods, and adjacent support rods are movably connected; the part that two adjacent branches are connected is provided with fixed cover, is provided with the second bolt that is used for fixed two adjacent branches on the fixed cover. The whole length of the supporting rod can be adjusted by pulling the adjacent supporting rods, so that the sampling tube reaches the sampling position, and the applicability and the universality of the device are improved; meanwhile, the size of the supporting rod is reduced, and the sampling device is convenient to store and transport.
Further, the rudder comprises a bearing seat arranged at the bottom of the support plate and a shaft pin arranged on the bearing seat and used for braking, two lug plates matched with the diameter of the support rod are arranged on the bearing seat, a third bolt is arranged on the lug plates, the third bolt penetrates through the support rod and is connected with a nut, and the third bolt is movably connected with the support rod. The support plate and the lug plate can realize relative rotation through a bearing in the bearing seat, the support plate can rotate in the horizontal direction, and the bearing can be braked through the shaft pin; the third bolt is movably connected with the supporting rod, the supporting plate can rotate in the vertical direction, and the supporting rod and the lug plate are fixed by screwing the third bolt and the nut.
Furthermore, a level gauge is arranged on the base, so that the levelness of the sampling device can be read visually, and corresponding adjustment can be performed conveniently.
The sampling method adopts the electric sampling device for accurately acquiring the rock mass structural plane, comprises a compass arranged on an electric hand drill, and further comprises the following steps:
s1, determining a sampling point position according to the purpose and the requirement of the rock mass structural plane test; measuring and recording the occurrence of the structural plane of the rock to be taken at the sampling point by using a compass; according to the purpose of sampling the acting force of a proposed engineering building on a structural plane or the acting force of a proposed structural plane in a shear test on the structural plane and the like, the accurate sampling angle of a sampling device is calculated by combining the occurrence of the structural plane of the rock mass; the sampling angle comprises a sampling azimuth angle in the horizontal direction and a sampling inclination angle in the vertical direction;
s2, placing the azimuth angle measuring surface of the compass on the top of the electric hand drill, accurately positioning the compass to a sampling azimuth position, and horizontally rotating the support plate through the rudder until the azimuth angle of the sampling tube is consistent with the sampling azimuth angle positioned by the compass; then placing the inclination angle measuring surface of the compass on the side surface of the electric hand drill, accurately positioning the compass to a sampling inclination angle position, and vertically rotating the support plate through the rudder until the inclination angle of the sampling tube is consistent with the sampling inclination angle positioned by the compass;
s3, turning the fixing nail into the ground to fix the sampling device;
s4, loosening the second bolt, adjusting the length of the supporting rod through the telescopic supporting rod to enable the height of the sampling tube to be basically consistent with that of a sampling rock mass structural plane, enabling the blade teeth to be close to the inner wall of the cavern, and then tightening the second bolt;
s5, checking whether the sampling device is still accurately positioned at the sampling angle; if the sampling device is not accurately positioned to the sampling angle, repeating the S2 adjustment;
s6, electrifying the electric hand drill, holding the electric hand drill by an operator, slowly pushing the electric hand drill to apply thrust to the direction of the rock wall, driving the sampling tube to stably and slowly press the sampling tube to the rock body by the electric hand drill until the rock body is observed to be exposed out of the observation window, stopping applying force, and closing the electric hand drill;
s7, moving the electric hand drill slightly in the up-down or left-right direction, and breaking the rock mass at the edge tooth part; then the sampling tube is slowly drawn out until the sampling tube is separated from the inner wall of the cavity;
and S8, after the sampling tube is cooled, taking down the sampling tube, and sealing two ends of the sampling tube by using covers.
The invention has the beneficial effects that:
1. according to the invention, the sampling tube is slowly drilled into the rock mass in the cavern by adopting the electric hand drill, so that the rock mass is prevented from being damaged by disturbance of the sampling tube, the integrity of the undisturbed rock mass is ensured as much as possible, the subsequent test is convenient, and the test error is reduced; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
2. The sampling tube can be driven to synchronously rotate in the vertical direction and the horizontal direction along with the support plate through the rudder, so that the sampling angle can be conveniently and accurately adjusted, the sampling error is reduced, and the accuracy of a subsequent test result is ensured.
3. The cutting edge reduces the contact area of the sampling tube and the rock mass, so that the sampling tube can be conveniently drilled into the rock mass, and time and labor are saved; the edge teeth are similar to the principle of a drag saw, and can more smoothly drill into a rock body in the radial direction of the sampling tube.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a right side view of fig. 1.
Labeled as:
1. a base; 2. a rudder; 3. a support plate; 4. an electric hand drill; 5. a connecting rod; 6. a sampling tube; 7. fixing nails; 8. a connecting cylinder; 9. an observation window; 10. cutting edges; 11. a blade tooth; 12. fixing a sleeve; 13. a bearing seat; 14. a level gauge; 15. the inner wall of the cavern; 16. structural surface; 17. a slide rail;
101. an adjustment key; 102. a grip; 103. a power line; 201. an ear plate; 202. a third bolt; 203. a nut; 301. a first support bar; 302. a second support bar.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example one
Referring to fig. 1 and 2, the electric sampling device for accurately obtaining the rock mass structural plane comprises a base 1, wherein a supporting rod perpendicular to the base is arranged at the top of the base, the end part of the supporting rod is connected with a supporting plate 3 through a rudder 2, and the rudder is used for driving the supporting plate to rotate in the vertical direction and the horizontal direction; the support plate is connected with an electric hand drill 4 in a sliding manner, a sliding rail 17 is arranged on the support plate, and a sliding groove matched with the sliding rail is arranged on the electric hand drill; the electric hand drill 4 is connected with a hollow cylindrical sampling tube 6 through a connecting rod 5. The sampling tube can be driven to synchronously rotate in the vertical direction and the horizontal direction along with the support plate through the rudder, so that the sampling angle can be conveniently and accurately adjusted, the sampling error is reduced, and the accuracy of a subsequent test result is ensured. The electric hand drill slides on the sliding rail on the support plate through the sliding groove, so that the accuracy of the sliding process is ensured, and the deflection in the sliding process is avoided. During the sample, at predetermined sampling position, through the sample angle of rudder adjustment sampling tube, sample in the rock mass that rethread electric hand drill drive sampling tube stretched into the cavern. According to the invention, the sampling tube is slowly drilled into the rock mass in the cavern by adopting the electric hand drill, so that the rock mass is prevented from being damaged by disturbance of the sampling tube, the integrity of the undisturbed rock mass is ensured as much as possible, the subsequent test is convenient, and the test error is reduced; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
Referring to fig. 1 and 2, in the present embodiment, a fixing pin 7 perpendicular to the base is disposed on the base, and the fixing pin can be buried below the bottom of the cavity, so as to enhance the stability of the base.
The fixing nail 7 of the embodiment is in threaded connection with the base 1, so that the height of the fixing nail is adjustable in the vertical direction; if the bottom surface of the cavern is uneven, different fixing nails are controlled to be screwed into the ground to different depths, so that the base level is adjusted.
Referring to fig. 1, in the present embodiment, a connecting cylinder 8 is provided between a connecting rod 5 and a sampling tube 6; the connecting cylinder 8 is provided with a transparent observation window 9. The connecting cylinder is used as a connecting piece, so that the connecting rod is conveniently connected with the sampling tube; meanwhile, the observation window on the connecting cylinder is convenient for operators to observe the rock mass condition in the sampling pipe in real time.
The sampling tube 6 of this embodiment is threadedly connected to a connector barrel 8, which is provided with a first bolt (not shown) for fixing the sampling tube and the connector barrel. The sampling tube can be detached from the connecting cylinder, so that the subsequent packaging and transportation of the sampling tube are facilitated; the threaded connection mode has the characteristics of simple structure and convenience and quickness in disassembly and assembly; the first bolt is used for fixing the connecting cylinder and the sampling tube, so that the connecting cylinder and the sampling tube are prevented from loosening in the rotating process; the first bolt penetrates through the connecting cylinder and abuts against the sampling tube in the connecting cylinder.
Referring to fig. 1, the present embodiment is provided with a cutting edge 10 provided with cutting teeth 11 at the end of the sampling tube. The cutting edge reduces the contact area of the sampling tube and the rock mass, so that the sampling tube can be conveniently drilled into the rock mass, and time and labor are saved; the edge teeth are similar to the principle of a drag saw, and can more smoothly drill into a rock body in the radial direction of the sampling tube.
Referring to fig. 1 and 2, the support rod of the present embodiment includes two sleeved support rods, and adjacent support rods are movably connected; the connecting part of two adjacent struts is provided with a fixing sleeve 12, and the fixing sleeve is provided with a second bolt (not shown in the figure) for fixing two adjacent struts. The two struts are respectively a first strut 301 and a second strut 302, the second strut is arranged in the first strut, the first strut and the second strut are movably connected, and the second strut can move relative to the first strut by pulling. The whole length of the supporting rod can be adjusted by pulling the second supporting rod so as to adjust the sampling position of the sampling tube, and the applicability and the universality of the device are improved; meanwhile, the size of the supporting rod is reduced, and the sampling mechanism is convenient to store and transport. The second bolt penetrates through the fixing sleeve and the first supporting rod in sequence to abut against the second supporting rod, and the first supporting rod and the second supporting rod are fixed. The invention can also be replaced by other schemes, for example, a spring pin shaft is arranged on the first support rod, pin holes are uniformly arranged at corresponding positions on the second support rod, the structure similar to a sunshade is realized, and the pin shaft penetrates through different pin holes to play a role in fixing the first support rod and the second support rod.
Referring to fig. 2, the rudder 2 of the present embodiment includes a bearing seat 13 disposed at the bottom of the support plate and a shaft pin disposed on the bearing seat for braking, two lug plates 201 having a diameter matching with that of the support rod are disposed on the bearing seat, a third bolt 202 is disposed on the lug plates, the third bolt penetrates through the support rod and is connected with a nut 203, and the third bolt is movably connected with the support rod. The support plate and the lug plate can realize relative rotation through a bearing in the bearing seat, the support plate can rotate in the horizontal direction, and the bearing can be braked through the shaft pin; the third bolt is movably connected with the supporting rod, the supporting plate can rotate in the vertical direction, and the supporting rod and the lug plate are fixed by screwing the third bolt and the nut.
Referring to fig. 1 and 2, the present embodiment provides a level 14 on the base 1 to facilitate visual reading of the levelness of the sampling device for corresponding adjustment.
Example two
The sampling method adopts the electric sampling device for accurately acquiring the rock mass structural plane, which comprises a compass arranged on an electric hand drill and further comprises the following steps:
s1, determining a sampling point position according to the purpose and the requirement of the rock mass structural plane test; measuring and recording the occurrence of the structural plane of the rock to be taken at the sampling point by using a compass; according to the purpose of sampling the acting force of a proposed engineering building on a structural plane or the acting force of a proposed structural plane in a shear test on the structural plane and the like, the accurate sampling angle of a sampling device is calculated by combining the occurrence of the structural plane of the rock mass; the sampling angle comprises a sampling azimuth angle in the horizontal direction and a sampling inclination angle in the vertical direction;
s2, placing the azimuth angle measuring surface of the compass on the top of the electric hand drill, accurately positioning the compass to a sampling azimuth position, and horizontally rotating the support plate through the rudder until the azimuth angle of the sampling tube is consistent with the sampling azimuth angle positioned by the compass; then placing the inclination angle measuring surface of the compass on the side surface of the electric hand drill, accurately positioning the compass to a sampling inclination angle position, and vertically rotating the support plate through the rudder until the inclination angle of the sampling tube is consistent with the sampling inclination angle positioned by the compass;
s3, screwing the fixing nail into the ground of the cavern, and fixing the sampling device;
s4, loosening the second bolt, adjusting the length of the supporting rod through the telescopic supporting rod to enable the height of the sampling tube to be basically consistent with that of a sampling rock mass structural plane, enabling the blade teeth to be close to the inner wall of the cavern, and then tightening the second bolt;
s5, checking whether the sampling device is still accurately positioned at the sampling angle; if the sampling device is not accurately positioned to the sampling angle, repeating the S2 adjustment;
s6, electrifying the electric hand drill, holding the electric hand drill by an operator, slowly pushing the electric hand drill to apply thrust to the direction of the rock wall, driving the sampling tube to stably and slowly press the sampling tube to the rock body by the electric hand drill until the rock body is observed to be exposed out of the observation window, stopping applying force, and closing the electric hand drill;
s7, moving the electric hand drill slightly in the up-down or left-right direction, and breaking the rock mass at the edge tooth part; then the sampling tube is slowly drawn out until the sampling tube is separated from the inner wall of the cavity;
and S8, after the sampling tube is cooled, taking down the sampling tube, and sealing two ends of the sampling tube by using covers.
The sampling tube can be driven to synchronously rotate in the vertical direction and the horizontal direction along with the support plate through the rudder, so that the sampling angle can be conveniently and accurately adjusted, the sampling error is reduced, and the accuracy of a subsequent test result is ensured. According to the invention, the sampling tube is slowly drilled into the rock mass in the cavern by adopting the electric hand drill, so that the rock mass is prevented from being damaged by disturbance of the sampling tube, the integrity of the undisturbed rock mass is ensured as much as possible, the subsequent test is convenient, and the test error is reduced; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric sampling device for accurately obtaining a rock mass structural plane is characterized by comprising a base (1), wherein a supporting rod perpendicular to the base is arranged at the top of the base, the end part of the supporting rod is connected with a supporting plate (3) through a rudder (2), and the rudder is used for driving the supporting plate to rotate in the vertical direction and the horizontal direction;
the support plate is connected with an electric hand drill (4) in a sliding manner, a sliding rail (17) is arranged on the support plate, and a sliding groove matched with the sliding rail is arranged on the electric hand drill; the electric hand drill (4) is connected with the hollow cylindrical sampling tube (6) through the connecting rod (5).
2. An electric sampling device for accurately obtaining the structural plane of a rock mass according to claim 1, characterized in that the base is provided with a fixing nail (7) perpendicular to the base.
3. An electric sampling device for accurately obtaining the rock mass structural plane according to claim 2, characterized in that the fixing nail (7) is in threaded connection with the base (1).
4. An electric sampling device for accurately obtaining the rock mass structural plane according to claim 1, characterized in that a connecting cylinder (8) is arranged between the connecting rod (5) and the sampling tube (6); a transparent observation window (9) is arranged on the connecting cylinder (8).
5. An electric sampling device for accurately obtaining the structural surface of a rock mass according to claim 44, wherein the sampling tube (6) is in threaded connection with the connecting cylinder (8), and the connecting cylinder is provided with a first bolt for fixing the sampling tube and the connecting cylinder.
6. An electric sampling device for accurately obtaining the rock mass structural plane according to claim 1, characterized in that the end of the sampling pipe is provided with a cutting edge (10) on which cutting teeth (11) are arranged.
7. The electric sampling device for accurately obtaining the rock mass structural plane according to claim 1, wherein the support rod comprises at least two sleeved support rods, and adjacent support rods are movably connected; the part where two adjacent supporting rods are connected is provided with a fixing sleeve (12), and the fixing sleeve is provided with a second bolt for fixing the two adjacent supporting rods.
8. The electric sampling device for accurately acquiring the rock mass structural plane is characterized in that the rudder (2) comprises a bearing seat (13) arranged at the bottom of the support plate and a shaft pin arranged on the bearing seat for braking, two lug plates (201) matched with the diameter of the support rod are arranged on the bearing seat, a third bolt (202) is arranged on the lug plates, penetrates through the support rod and is connected with a nut (203), and the third bolt is movably connected with the support rod.
9. An electric sampling device for accurately obtaining rock mass structural planes according to any one of claims 1 to 8, characterized in that a level (14) is arranged on the base (1).
10. The sampling method is characterized in that the electric sampling device for accurately acquiring the rock mass structural plane, which comprises the compass arranged on the electric hand drill, is adopted according to claim 9, and the method further comprises the following steps:
s1, determining a sampling point position according to the purpose and the requirement of the rock mass structural plane test; measuring and recording the occurrence of the structural plane of the rock to be taken at the sampling point by using a compass; according to the purpose of sampling the acting force of a proposed engineering building on a structural plane or the acting force of a proposed structural plane in a shear test on the structural plane and the like, the accurate sampling angle of a sampling device is calculated by combining the occurrence of the structural plane of the rock mass; the sampling angle comprises a sampling azimuth angle in the horizontal direction and a sampling inclination angle in the vertical direction;
s2, placing the azimuth angle measuring surface of the compass on the top of the electric hand drill, accurately positioning the compass to a sampling azimuth position, and horizontally rotating the support plate through the rudder until the azimuth angle of the sampling tube is consistent with the sampling azimuth angle positioned by the compass; then placing the inclination angle measuring surface of the compass on the side surface of the electric hand drill, accurately positioning the compass to a sampling inclination angle position, and vertically rotating the support plate through the rudder until the inclination angle of the sampling tube is consistent with the sampling inclination angle positioned by the compass;
s3, screwing the fixing nail into the ground of the cavern, and fixing the sampling device;
s4, loosening the second bolt, adjusting the length of the supporting rod through the telescopic supporting rod to enable the height of the sampling tube to be basically consistent with that of a sampling rock mass structural plane, enabling the blade teeth to be close to the inner wall of the cavern, and then tightening the second bolt;
s5, checking whether the sampling device is still accurately positioned at the sampling angle; if the sampling device is not accurately positioned to the sampling angle, repeating the S2 adjustment;
s6, electrifying the electric hand drill, holding the electric hand drill by an operator, slowly pushing the electric hand drill to apply thrust to the direction of the rock wall, driving the sampling tube to stably and slowly press the sampling tube to the rock body by the electric hand drill until the rock body is observed to be exposed out of the observation window, stopping applying force, and closing the electric hand drill;
s7, moving the electric hand drill slightly in the up-down or left-right direction, and breaking the rock mass at the edge tooth part; then the sampling tube is slowly drawn out until the sampling tube is separated from the inner wall of the cavity;
and S8, after the sampling tube is cooled, taking down the sampling tube, and sealing two ends of the sampling tube by using covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123632.9A CN112082809A (en) | 2020-10-20 | 2020-10-20 | Electric sampling device and sampling method for accurately obtaining rock mass structural plane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123632.9A CN112082809A (en) | 2020-10-20 | 2020-10-20 | Electric sampling device and sampling method for accurately obtaining rock mass structural plane |
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| CN112082809A true CN112082809A (en) | 2020-12-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307956A (en) * | 2022-08-05 | 2022-11-08 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Hydraulic ring geological survey sampling equipment with location structure |
-
2020
- 2020-10-20 CN CN202011123632.9A patent/CN112082809A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307956A (en) * | 2022-08-05 | 2022-11-08 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Hydraulic ring geological survey sampling equipment with location structure |
| CN115307956B (en) * | 2022-08-05 | 2024-01-30 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Hydraulic loop geological survey sampling equipment with location structure |
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