CN112065380A - Large-buried-depth narrow-channel shaft electric sampling device and sampling method - Google Patents
Large-buried-depth narrow-channel shaft electric sampling device and sampling method Download PDFInfo
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- CN112065380A CN112065380A CN202011125442.0A CN202011125442A CN112065380A CN 112065380 A CN112065380 A CN 112065380A CN 202011125442 A CN202011125442 A CN 202011125442A CN 112065380 A CN112065380 A CN 112065380A
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- 238000005070 sampling Methods 0.000 title claims abstract description 178
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002689 soil Substances 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 3
- 230000036346 tooth eruption Effects 0.000 claims description 3
- 238000009933 burial Methods 0.000 claims 3
- 238000012360 testing method Methods 0.000 abstract description 12
- 230000003028 elevating effect Effects 0.000 description 6
- 238000004806 packaging method and process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005527 soil sampling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
- E21B49/06—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools pressing or scrapers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Soil Sciences (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses an electric sampling device and a sampling method for a vertical shaft with a large buried depth and a narrow channel, wherein the sampling device comprises a sampling mechanism horizontally arranged in the vertical shaft and a lifting mechanism arranged at the top of the vertical shaft and used for driving the sampling mechanism to ascend and descend in the vertical direction; the sampling mechanism comprises a supporting rod horizontally arranged in the shaft, one end of the supporting rod is connected with the inner wall of the shaft, and the other end of the supporting rod is connected with the inner wall of the shaft through a hydraulic jack and a hollow sampling tube in sequence; the fixed end of the hydraulic jack is fixedly connected with the support rod, and a hydraulic pump is arranged outside the hydraulic jack; according to the invention, the hydraulic jack is adopted to enable the sampling tube to be slowly inserted into the soil body in the vertical shaft, so that the disturbance of the sampling tube to the soil body is avoided, the integrity of the undisturbed soil 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, reduces the potential safety hazard, 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 method for a vertical shaft with a large buried depth and a narrow channel.
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 sampling soil samples is improved. At present, the sampling soil body is often required to be kept in an original state. However, the soil body is various sediments generated by rocks in complex natural environments such as weathering, denudation, transportation and sedimentation, is a three-phase system consisting of solid substances, water and gas, has a relatively loose soil body structure, is easy to disturb and destroy the original structure system in the processes of sampling operation, sample packaging, storage and transportation, and causes difficulty in sampling undisturbed soil and even failure in sampling.
Especially to the undisturbed soil sample of shaft, present mode is comparatively complicated, specifically is: the safety belt is put through by an operator, the lifting equipment is connected with the safety belt of the operator through a rope, and the lifting equipment lowers the operator to a preset sampling position; an operator holds the sampling tube by one hand and aims at the inner wall of the vertical shaft, and uses an iron hammer to knock the sampling tube by the other hand, so that the sampling tube extends into the soil body in the vertical shaft; and after sampling is finished, the sampling tube is withdrawn, and finally the operator is lifted away from the vertical shaft through the lifting equipment. The above method has the following disadvantages: firstly, inclination and deviation of a sampling tube are easy to occur by adopting a hammering method, and soil body vibration is easy to cause in the hammering process, the original structural system of the soil body is damaged, and sampling of the original soil body fails; secondly, operators need to go down to the vertical shaft for relevant operation, and certain potential safety hazards exist; thirdly, the operator is connected with the hoisting equipment through a rope, so that the operator shakes in the vertical shaft, and force is not applied conveniently; fourthly, the labor intensity of manual operation is high, and the efficiency is low.
In conclusion, the conventional vertical shaft undisturbed soil sampling device has certain technical defects. In the sampling operation process, the original soil body to be sampled can generate great disturbance and damage, and meanwhile, the operation flow is complex, the labor intensity is high, the sampling efficiency is low, and the sampling success rate is low.
Disclosure of Invention
Aiming at the technical problems of complex operation process, low sampling efficiency, large disturbance damage to soil body and low sampling success rate of the shaft undisturbed soil sampling device, the invention provides the large-buried-depth narrow-channel shaft electric sampling device and the sampling method which have simple structure, small disturbance to the soil body and high automation degree.
The technical scheme adopted by the invention is as follows: a vertical shaft electric sampling device with a large buried depth and a narrow channel comprises a sampling mechanism horizontally arranged in a vertical shaft and a lifting mechanism arranged at the top of the vertical shaft and used for driving the sampling mechanism to ascend and descend in the vertical direction; the sampling mechanism comprises a supporting rod horizontally arranged in the shaft, one end of the supporting rod is connected with the inner wall of the shaft, and the other end of the supporting rod is connected with the inner wall of the shaft through a hydraulic jack and a hollow sampling tube in sequence; the fixed end of the hydraulic jack is fixedly connected with the support rod, and a hydraulic pump for driving a piston rod of the hydraulic jack to stretch is arranged outside the hydraulic jack; the hydraulic jack can drive the sampling tube to move in the horizontal direction. During the sample, transfer the sampling mechanism through elevating system and reach predetermined sample position to through elevating system adjustment sampling mechanism's levelness, sample in rethread hydraulic jack drive sampling tube slowly stretches into the soil body of shaft. According to the invention, the hydraulic jack is adopted to enable the sampling tube to be slowly inserted into the soil body in the vertical shaft, so that the disturbance of the sampling tube to the soil body is avoided, the integrity of the undisturbed soil 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, reduces the potential safety hazard, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
Further, the lifting mechanism comprises a rack arranged at the top of the vertical shaft, a winch is arranged on the rack, and the winch is connected with the sampling mechanism through a steel wire rope. The lifting mechanism is used for driving the sampling mechanism to ascend and descend in the vertical direction; in addition, different steel wire ropes are controlled by different winches, so that the sampling mechanism is convenient to level.
Furthermore, the movable end of the hydraulic jack is connected with a connecting seat, and a connecting cylinder is arranged on the connecting seat; the movable end of the hydraulic jack is connected with the sampling tube through the connecting seat and the connecting cylinder in sequence; two first lifting lugs connected with the steel wire rope are arranged on the connecting seat; a transparent observation window is arranged on the connecting cylinder. The first lifting lug is arranged on the connecting seat, so that the stress span of the sampling mechanism is increased, and the connection stability of the sampling mechanism and the lifting mechanism is improved; the connecting cylinder is used as a connecting piece, so that the connecting seat is conveniently connected with the sampling tube; meanwhile, the observation window on the connecting cylinder is convenient for operators to monitor the soil condition in the sampling pipe in real time.
Further, a fixed rod is vertically arranged on the hydraulic jack; the fixed rod is provided with a first camera facing the observation window and a second camera facing the support rod. The soil condition in the sampling pipe can be monitored in real time through the first camera; but the contact condition of real-time supervision bracing piece and shaft inner wall through the second camera.
Furthermore, the sampling tube is in threaded connection with the connecting cylinder, and the sampling tube can be detached from the connecting cylinder, so that subsequent packaging and transportation are facilitated; the bolt connection mode has the characteristics of simple structure and convenience and quickness in disassembly and assembly.
Furthermore, the end 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 soil body, so that the sampling tube can be conveniently cut into the soil body, and time and labor are saved; the blade teeth are similar to a sawing principle, and can smoothly cut into the soil body of the vertical shaft in the radial direction of the sampling tube.
Furthermore, a level gauge is arranged on the supporting rod, so that the levelness of the sampling mechanism can be observed conveniently, and corresponding adjustment can be carried out conveniently.
Further, the support rod comprises at least two sleeved support rods, and adjacent support rods are in threaded connection. The whole length of the supporting rod can be adjusted by rotating the adjacent supporting rods, so that the use of vertical shafts with different diameters is met, 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.
Furthermore, a base plate which is vertically arranged is arranged at one end of the supporting rod connected with the inner wall of the vertical shaft; two second lifting lugs connected with the steel wire rope are arranged on the base plate. The contact area between the support rod and the inner wall of the vertical shaft is increased by the base plate, and the connection stability of the sampling mechanism and the vertical shaft is improved; set up the second lug on the backing plate, increased sampling mechanism's atress span, improved the stability that sampling mechanism and elevating system are connected.
The sampling method adopts the electric sampling device for the vertical shaft with the large buried depth and the narrow channel, and comprises the following steps:
s1, adjusting the length of the supporting rod by rotating the supporting rod according to the diameter of the vertical shaft, so that the overall length of the sampling mechanism is slightly smaller than the diameter of the vertical shaft;
s2, erecting a lifting mechanism at the top of the shaft, and lowering the sampling mechanism through the lifting mechanism to reach a preset sampling position;
s3, observing the levelness of the sampling mechanism through a level meter, and adjusting different steel wire ropes to keep the sampling mechanism in a horizontal state; then observing the contact condition of the sampling tube and the base plate with the inner wall of the vertical shaft by the first camera and the second camera;
s4, driving the sampling tube to stably and slowly horizontally press to a soil body in the shaft through the hydraulic jack until the soil body is seen to be exposed out of the observation window through the first camera, and stopping the application of force by the hydraulic jack;
s5, controlling the sampling tube to slightly move up and down or left and right through the lifting mechanism, and breaking off the soil body at the blade tooth part; the sampling tube is driven by a hydraulic jack to move out of the soil body stably and slowly until the sampling tube is separated from the inner wall of the vertical shaft;
and S6, lifting the sampling mechanism to the ground through the lifting mechanism, taking off the sampling tube, and sealing two ends of the sampling tube by using a cover.
The sampling method of the invention enables the sampling tube to be slowly inserted into the soil body in the vertical shaft, avoids the disturbance of the sampling tube to destroy the soil body, ensures the integrity of the undisturbed soil as much as possible, is convenient for subsequent tests and reduces test errors; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, reduces the potential safety hazard, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
The invention has the beneficial effects that:
1. according to the invention, the sampling tube is slowly inserted into the soil body in the vertical shaft, so that the disturbance of the sampling tube to destroy the soil body is avoided, the integrity of undisturbed soil is ensured as much as possible, the subsequent test is facilitated, and the test error is reduced; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, reduces the potential safety hazard, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
2. According to the invention, the soil condition in the sampling pipe and the contact condition of the supporting rod and the inner wall of the vertical shaft can be monitored in real time through the first camera and the second camera.
3. The cutting edge reduces the contact area of the sampling tube and the soil body, so that the sampling tube can be conveniently cut into the soil body, and time and labor are saved; the blade teeth can cut into the soil body of the vertical shaft in the radial direction of the sampling tube more smoothly.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Labeled as: 1. a shaft; 2. a ground surface; 3. a hydraulic jack; 4. a sampling tube; 5. a hydraulic pump; 6. a connecting seat; 7. a connecting cylinder; 8. an observation window; 9. fixing the rod; 10. a first lifting lug; 11. a second lifting lug; 12. a first camera; 13. a second camera; 14. cutting edges; 15. a blade tooth; 16. a level gauge; 17. a base plate; 18. an electric wire; 19. a first support bar; 20. a second support bar;
101. a frame; 102. a winch; 103. a steel cord.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example one
Referring to fig. 1, the electric sampling device for the vertical shaft with the large buried depth and the narrow channel comprises a sampling mechanism horizontally arranged in the vertical shaft 1 and a lifting mechanism arranged at the top of the vertical shaft and used for driving the sampling mechanism to ascend and descend in the vertical direction; the sampling mechanism comprises a supporting rod horizontally arranged in the shaft, one end of the supporting rod is connected with the inner wall of the shaft, and the other end of the supporting rod is connected with the inner wall of the shaft through a hydraulic jack 3 and a hollow sampling tube 4 in sequence; the fixed end of the hydraulic jack is fixedly connected with the support rod, and a hydraulic pump 5 for driving a piston rod of the hydraulic jack to stretch is arranged outside the hydraulic jack; the hydraulic jack can drive the sampling tube to move in the horizontal direction. During the sample, transfer the sampling mechanism through elevating system and reach predetermined sample position to through elevating system adjustment sampling mechanism's levelness, sample in rethread hydraulic jack drive sampling tube slowly stretches into the soil body of shaft. According to the invention, the hydraulic jack is adopted to enable the sampling tube to be slowly inserted into the soil body in the vertical shaft, so that the disturbance of the sampling tube to the soil body is avoided, the integrity of the undisturbed soil 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, reduces the potential safety hazard, and is simple, convenient to disassemble and assemble, time-saving and labor-saving.
Referring to fig. 1, the lifting mechanism of the present embodiment includes a frame 101 disposed at the top of the shaft, and a winch 102 is disposed on the frame and connected to the sampling mechanism through a wire rope 103. The lifting mechanism is used for driving the sampling mechanism to ascend and descend in the vertical direction; in addition, different steel wire ropes are controlled by different winches, so that the sampling mechanism is convenient to level.
Referring to fig. 1, in the present embodiment, a connection seat 6 is connected to a movable end of a hydraulic jack, and a connection cylinder 7 is disposed on the connection seat 6; the movable end of the hydraulic jack is connected with the sampling tube 4 through the connecting seat 6 and the connecting cylinder 7 in sequence; two first lifting lugs 10 connected with a steel wire rope 103 are arranged on the connecting seat 6; a transparent observation window 8 is arranged on the connecting cylinder. The first lifting lug is arranged on the connecting seat, so that the stress span of the sampling mechanism is increased, and the connection stability of the sampling mechanism and the lifting mechanism is improved; the connecting cylinder is used as a connecting piece, so that the connecting seat is conveniently connected with the sampling tube; meanwhile, the observation window on the connecting cylinder is convenient for operators to monitor the soil condition in the sampling pipe in real time.
Referring to fig. 1, the present embodiment has a fixing rod 9 vertically arranged on the hydraulic jack; the fixed bar is provided with a first camera 12 facing the observation window and a second camera 13 facing the support bar. The soil condition in the sampling pipe can be monitored in real time through the first camera; but the contact condition of real-time supervision bracing piece and shaft inner wall through the second camera.
The sampling tube 4 of the embodiment is in threaded connection with the connecting cylinder 7, so that the sampling tube can be detached from the connecting cylinder, and subsequent packaging and transportation are facilitated; the bolt connection mode has the characteristics of simple structure and convenience and quickness in disassembly and assembly.
Referring to fig. 1, the present embodiment is provided with a cutting edge 14 provided with cutting teeth 15 at the end of the sampling tube. The cutting edge reduces the contact area of the sampling tube and the soil body, so that the sampling tube can be conveniently cut into the soil body, and time and labor are saved; the blade teeth are similar to a sawing principle, and can smoothly cut into the soil body of the vertical shaft in the radial direction of the sampling tube.
Referring to fig. 1, the present embodiment provides a level 16 on the support bar to facilitate viewing the levelness of the sampling mechanism for adjustment.
Referring to fig. 1, the support rod of the present embodiment includes two sleeved support rods, and adjacent support rods are connected by screw threads. The two supporting rods are respectively a first supporting rod 19 and a second supporting rod 20, the second supporting rod is arranged in the first supporting rod, the level meter is arranged on the supporting rod on the outermost side, namely the first supporting rod, and the first supporting rod and the second supporting rod are in threaded connection; the first strut can be made to telescope within the second strut by rotating the second strut, the shim plate being arranged at the end of the innermost strut, i.e. at the end of the second strut. The whole length of the supporting rod can be adjusted by rotating the adjacent supporting rods, so that the use of vertical shafts with different diameters is met, 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.
Referring to fig. 1, in the present embodiment, a vertically arranged backing plate 17 is provided at one end of the support rod connected to the inner wall of the shaft; two second lifting lugs 11 connected with the steel wire rope 103 are arranged on the backing plate. The contact area between the support rod and the inner wall of the vertical shaft is increased by the base plate, and the connection stability of the sampling mechanism and the vertical shaft is improved; set up the second lug on the backing plate, increased sampling mechanism's atress span, improved the stability that sampling mechanism and elevating system are connected.
The hydraulic jack of this embodiment is multistage hydraulic jack, and multistage hydraulic jack includes a plurality of telescopic piston rods, compares in the single-stage hydraulic jack of the same specification, and under the condition of the same stroke, multistage hydraulic jack's size is littleer, and area occupied is littleer.
Example two
The sampling method adopts the electric sampling device for the vertical shaft with the large buried depth and the narrow channel, which comprises the following steps:
s1, adjusting the length of the supporting rod by rotating the adjacent supporting rods according to the diameter of the vertical shaft, so that the overall length of the sampling mechanism is slightly smaller than the diameter of the vertical shaft;
s2, erecting a lifting mechanism at the top of the shaft, and lowering the sampling mechanism through the lifting mechanism to reach a preset sampling position;
s3, observing the levelness of the sampling mechanism through a level meter, and adjusting different steel wire ropes to keep the sampling mechanism in a horizontal state; then observing the contact condition of the sampling tube and the base plate with the inner wall of the vertical shaft by the first camera and the second camera;
s4, driving the sampling tube to stably and slowly horizontally press to a soil body in the shaft through the hydraulic jack until the soil body is seen to be exposed out of the observation window through the first camera, and stopping the application of force by the hydraulic jack;
s5, controlling the sampling tube to slightly move up and down or left and right through the lifting mechanism, and breaking off the soil body at the blade tooth part; the sampling tube is driven by a hydraulic jack to move out of the soil body stably and slowly until the sampling tube is separated from the inner wall of the vertical shaft;
and S6, lifting the sampling mechanism to the ground through the lifting mechanism, taking off the sampling tube, and sealing two ends of the sampling tube by using a cover.
The sampling method of the invention enables the sampling tube to be slowly inserted into the soil body in the vertical shaft, avoids the disturbance of the sampling tube to destroy the soil body, ensures the integrity of the undisturbed soil as much as possible, is convenient for subsequent tests and reduces test errors; meanwhile, the device replaces the traditional manual operation, reduces the labor intensity, improves the sampling efficiency, reduces the potential safety hazard, 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. The electric sampling device for the vertical shaft with the large buried depth and the narrow passage is characterized by comprising a sampling mechanism horizontally arranged in the vertical shaft (1) and a lifting mechanism arranged at the top of the vertical shaft and used for driving the sampling mechanism to ascend and descend in the vertical direction;
the sampling mechanism comprises a supporting rod horizontally arranged in the shaft, one end of the supporting rod is connected with the inner wall of the shaft, and the other end of the supporting rod is connected with the inner wall of the shaft through a hydraulic jack (3) and a hollow sampling tube (4) in sequence; the fixed end of the hydraulic jack is fixedly connected with the support rod, and a hydraulic pump (5) for driving a piston rod of the hydraulic jack to stretch is arranged outside the hydraulic jack; the hydraulic jack can drive the sampling tube to move in the horizontal direction.
2. The electric sampling device for the vertical shaft with the large burial depth and the narrow passage as claimed in claim 1, wherein the lifting mechanism comprises a frame (101) arranged at the top of the vertical shaft, a winch (102) is arranged on the frame, and the winch is connected with the sampling mechanism through a steel wire rope (103).
3. The large-burial-depth narrow-passage shaft electric sampling device as claimed in claim 1, wherein the movable end of the hydraulic jack is connected with a connecting seat (6), and a connecting cylinder (7) is arranged on the connecting seat (6); the movable end of the hydraulic jack is connected with the sampling tube (4) through a connecting seat (6) and a connecting cylinder (7) in sequence; two first lifting lugs (10) connected with the steel wire rope (103) are arranged on the connecting seat (6); a transparent observation window (8) is arranged on the connecting cylinder.
4. A large buried depth narrow passage shaft electric sampling device as claimed in claim 3, characterized in that the hydraulic jack is vertically arranged with a fixing rod (9); the fixed rod is provided with a first camera (12) facing the observation window and a second camera (13) facing the support rod.
5. A large burial depth narrow passage shaft electric sampling device as claimed in claim 3, wherein the sampling tube (4) is in threaded connection with the connecting cylinder (7).
6. The electric sampling device for the vertical shaft with the large burial depth and the narrow passage as claimed in claim 1, wherein the end part of the sampling tube is provided with a cutting edge (14) which is provided with cutting teeth (15).
7. A large buried depth narrow passage shaft electric sampling device as claimed in claim 1, characterized in that the supporting rod is provided with a level gauge (16).
8. The electric sampling device for the vertical shaft with the large buried depth and the narrow channel as claimed in claim 1, wherein the supporting rod comprises at least two sleeved supporting rods, and adjacent supporting rods are connected through threads.
9. The electric sampling device for the vertical shaft with the large buried depth and the narrow channel as claimed in any one of claims 1 to 8, wherein a backing plate (17) which is vertically arranged is arranged at one end of the supporting rod which is connected with the inner wall of the vertical shaft; two second lifting lugs (11) connected with the steel wire rope (103) are arranged on the base plate.
10. The sampling method, wherein the electric sampling device for the vertical shaft with the large buried depth and the narrow channel as claimed in claim 9 is adopted, and comprises the following steps:
s1, adjusting the length of the supporting rod by rotating the adjacent supporting rods according to the diameter of the vertical shaft, so that the overall length of the sampling mechanism is slightly smaller than the diameter of the vertical shaft;
s2, erecting a lifting mechanism at the top of the shaft, and lowering the sampling mechanism through the lifting mechanism to reach a preset sampling position;
s3, observing the levelness of the sampling mechanism through a level meter, and adjusting different steel wire ropes to keep the sampling mechanism in a horizontal state;
then observing the contact condition of the sampling tube and the base plate with the inner wall of the vertical shaft by the first camera and the second camera;
s4, driving the sampling tube to stably and slowly horizontally press to a soil body in the shaft through the hydraulic jack until the soil body is seen to be exposed out of the observation window through the first camera, and stopping the application of force by the hydraulic jack;
s5, controlling the sampling tube to slightly move up and down or left and right through the lifting mechanism, and breaking off the soil body at the blade tooth part; the sampling tube is driven by a hydraulic jack to move out of the soil body stably and slowly until the sampling tube is separated from the inner wall of the vertical shaft;
and S6, lifting the sampling mechanism to the ground through the lifting mechanism, taking off the sampling tube, and sealing two ends of the sampling tube by using a cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125442.0A CN112065380B (en) | 2020-10-20 | 2020-10-20 | Electric sampling device and sampling method for shaft with large buried depth and narrow channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011125442.0A CN112065380B (en) | 2020-10-20 | 2020-10-20 | Electric sampling device and sampling method for shaft with large buried depth and narrow channel |
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| CN112065380A true CN112065380A (en) | 2020-12-11 |
| CN112065380B CN112065380B (en) | 2023-07-18 |
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