CN116464429B - Water level measurement equipment in rock-soil drilling hole - Google Patents

Water level measurement equipment in rock-soil drilling hole Download PDF

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Publication number
CN116464429B
CN116464429B CN202310414815.3A CN202310414815A CN116464429B CN 116464429 B CN116464429 B CN 116464429B CN 202310414815 A CN202310414815 A CN 202310414815A CN 116464429 B CN116464429 B CN 116464429B
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China
Prior art keywords
water level
assembly
water
disc
rope
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CN202310414815.3A
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CN116464429A (en
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郑炎昊
单坤
李锦辉
郑晨光
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Shenzhen Graduate School Harbin Institute of Technology
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Shenzhen Graduate School Harbin Institute of Technology
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/04Measuring depth or liquid level
    • E21B47/047Liquid level
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30Assessment of water resources

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

The invention discloses a water level measuring device in a rock-soil drilling hole, which comprises: the automatic water level compensation device comprises lifting rope paying-off equipment and a water level measurement assembly, wherein a scale rope capable of being automatically wound and unwound is arranged inside the lifting rope paying-off equipment, a rope guide assembly is arranged at the lower end of the lifting rope paying-off equipment, the lower end of the rope guide assembly is connected with a plumb assembly through the scale rope, the plumb state of the scale rope can be ensured in the measurement process, groundwater is prevented from flowing to influence the scale rope, and the lower end of the plumb assembly is provided with the water level measurement assembly, so that the water level can be further compensated and measured, and the measurement accuracy is improved.

Description

Water level measurement equipment in rock-soil drilling hole
Technical Field
The invention relates to the technical field of geotechnical engineering investigation, in particular to water level measuring equipment in a geotechnical drilling hole.
Background
Currently, in order to know the influence of groundwater level on engineering when rock and soil exploration is performed, groundwater level needs to be measured, and generally, hydraulic engineering drillers such as GXY-1, GXY-2 type hydraulic engineering drillers are required to perform drilling operation, and a water level measuring instrument is used for measuring stable water level after drilling for a period of time.
The existing rock-soil investigation drilling water level measuring instrument is characterized in that one end of a rope is connected with a floating ball or a floating plate and is placed in a drilling hole when the water level is measured, then the water level is measured by observing the downward extension of the rope, the existing water level measuring device is influenced by groundwater flow and buoyancy, the plumb of the rope is difficult to ensure, excessive ropes are released to float on the water surface, and serious measuring errors are caused.
Therefore, there is a need to develop a reasonable in-borehole water level measurement device to solve the above problems.
Disclosure of Invention
In order to achieve the above purpose, the invention provides a water level measuring device in a rock-soil borehole, comprising: the automatic water level compensation device comprises lifting rope paying-off equipment and a water level measurement assembly, wherein a scale rope capable of being automatically wound and unwound is arranged inside the lifting rope paying-off equipment, a rope guide assembly is arranged at the lower end of the lifting rope paying-off equipment, the lower end of the rope guide assembly is connected with a plumb assembly through the scale rope, the plumb state of the scale rope can be ensured in the measurement process, groundwater is prevented from flowing to influence the scale rope, and the lower end of the plumb assembly is provided with the water level measurement assembly, so that the water level can be further compensated and measured, and the measurement accuracy is improved.
Further, preferably, the rope guide assembly includes: the guide disc is arranged at the lower end of the lifting rope paying-off device and is positioned right above the observation well, a guide hole is formed in the center of the guide disc, and two guide wheels are symmetrically arranged on the inner wall of the guide hole.
Further, preferably, the guide disc is coaxially provided with a first receiving ring and a second receiving ring on one side close to the water surface, and the width of the first receiving ring is far greater than that of the second receiving ring.
Further, preferably, the plumb assembly includes:
The circumference of the fixed seat is provided with a plurality of water level measuring assemblies;
The adjusting block is connected with the fixed seat through an adjusting spring;
the positioning transmitting disc is arranged at the upper end of the adjusting block;
The electromagnet is arranged at one end of the adjusting block, which is close to the water level measuring assembly; and
The laser range finder is arranged at the lower end of the adjusting block.
Further, as an preference, the circumference of the positioning transmitting disc far away from the circle center is provided with a plurality of first laser transmitters, the circumference of the positioning transmitting disc near the circle center is provided with a plurality of second laser transmitters, and the beam diameter of the first laser transmitters is far greater than that of the second laser transmitters.
Further, preferably, the water level measuring assembly includes: the water filling balance weight plate is characterized by comprising an inflatable balance weight plate and a water filling balance weight plate, wherein filling air bags are arranged on the circumferences of the inflatable balance weight plate and the water filling balance weight plate and are communicated with compressed gas in the inflatable balance weight plate, a water injection cylinder is arranged between the inflatable balance weight plate and the water filling balance weight plate, and the water injection cylinder is communicated with liquid in the water filling balance weight plate;
The floating slide rod is arranged in the water filling counterweight disc in a sliding and penetrating way through the sealing and sliding assembly;
the water level receiver is arranged at one end of the floating slide rod; and
The horizontal floating plate is arranged at one end of the floating slide rod, which is far away from the water level receiver.
Further, preferably, the seal slide assembly includes: the sealing slide block is penetrated and arranged in the water filling counterweight disc through a micro-force spring, and a flexible waterproof film is arranged between the sealing slide block and the water filling counterweight disc.
Compared with the prior art, the invention provides the rock-soil drilling water level measuring equipment, which has the following beneficial effects:
The filling air bags are used for clamping the equipment above the water level, so that the influence of groundwater flow and buoyancy on a measurement result is prevented;
Plumb subassembly utilizes location transmitting disk to carry out plumb to scale rope and laser range finder and adjusts, fills water through filling water in the water injection section of thick bamboo for the horizontal floating plate drives the water level receiver under the effect of surface of water buoyancy and rises and break away from the surface of water, and the horizontal floating plate keeps the level under the effect of surface of water, can make the perpendicular measurement compensation distance of laser range finder, has effectively avoided the influence of device slope to the result.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a water level measuring device in a rock-soil borehole;
FIG. 2 is a schematic diagram of the rope guide assembly of the water level measuring device in the rock and soil borehole;
FIG. 3 is a schematic view of the structure of a plumb assembly in an in-hole water level measurement apparatus;
FIG. 4 is a schematic diagram of the structure of a positioning emitter disk in a water level measuring device in a rock-soil borehole;
FIG. 5 is a schematic structural view of a water level measurement assembly in an in-hole rock and earth borehole water level measurement apparatus;
FIG. 6 is a schematic structural view of a seal slide assembly in an in-earth-boring water level measurement apparatus;
In the figure: 1. a lifting rope paying-off device; 2. a water level measuring assembly; 21. an inflatable counterweight plate; 22. a water filling counterweight plate; 23. filling the air bag; 24. a water injection cylinder; 25. a floating slide bar; 26. a seal slide assembly; 261. a sealing slide block; 262. a micro force spring; 263. a flexible water-blocking film; 27. a water level receiver; 28. a horizontal floating plate; 3. a scale rope; 4. a rope guide assembly; 41. a guide disc; 411. a first receiving ring; 412. a second receiving ring; 42. a guide hole; 43. a guide wheel; 5. a plumb assembly; 51. a fixing seat; 52. an adjusting block; 53. positioning a transmitting disc; 531. a first laser transmitter; 532. a second laser transmitter; 54. an electromagnet; 55. a laser range finder; 56. and (5) adjusting the spring.
Detailed Description
Referring to fig. 1-6, the present invention provides a water level measuring device in a rock-soil borehole, comprising: the automatic water level compensation device comprises lifting rope paying-off equipment 1 and a water level measurement assembly 2, wherein a scale rope 3 capable of being automatically wound and unwound is arranged inside the lifting rope paying-off equipment 1, a rope guide assembly 4 is arranged at the lower end of the lifting rope paying-off equipment 1, a plumb assembly 5 is connected to the lower end of the rope guide assembly 4 through the scale rope 3, the plumb state of the scale rope 3 can be ensured in the measurement process, groundwater is prevented from flowing to influence the scale rope 3, and the water level measurement assembly 2 can further compensate and measure the water level and improve the measurement accuracy. That is, the scale rope 3 will the water level measurement subassembly 2 is lowered into the observation well, when the water level measurement subassembly 2 is immersed in water, the water level measurement subassembly 2 can change self volume and block on the observation well perisporium, starts this moment the lifting rope unwrapping wire equipment 1 will the scale rope 3 retrieves the regulation for the scale rope 3 realizes plumb regulation, effectively prevents the excessive influence measuring result of scale rope 3 release, then carries out further compensation measurement through the water level measurement subassembly 2, improves measuring accuracy.
In this embodiment, the rope guide assembly 4 includes: the guide disc 41 is arranged at the lower end of the lifting rope paying-off device 1 and is positioned right above an observation well, a guide hole 42 is formed in the center of the guide disc 41, and two guide wheels 43 are symmetrically arranged on the inner wall of the guide hole 42. That is, the scale cord 3 passes between the two guide wheels 43, ensuring that the scale cord 3 is on the axis of the guide hole 42, facilitating plumb adjustment of the scale cord 3.
In this embodiment, the guide plate 41 is coaxially provided with a first receiving ring 411 and a second receiving ring 412 on a side close to the water surface, and the width of the first receiving ring 411 is far greater than that of the second receiving ring 412.
In this embodiment, the plumb assembly 5 includes:
The fixed seat 51 is circumferentially provided with a plurality of water level measuring assemblies 2;
the adjusting block 52 is connected with the fixed seat 51 through an adjusting spring 56;
a positioning transmitting disc 53 arranged at the upper end of the adjusting block 52;
an electromagnet 54 disposed at one end of the adjusting block 52 near the water level measuring assembly 2; and
And a laser distance measuring device 55 arranged at the lower end of the regulating block 52.
In this embodiment, the positioning transmitting disc 53 is provided with a plurality of first laser transmitters 531 at a position far away from the center of the circle, and a plurality of second laser transmitters 532 at a position near the center of the circle, and the beam diameter of the first laser transmitters 531 is far greater than that of the second laser transmitters 532.
It should be noted that, initially, the electromagnet 54 is energized, the adjusting block 52 and the water level measuring assembly 2 are attracted together, when the water level measuring assembly 2 changes its volume and is blocked on the peripheral wall of the observation well, the electromagnet 54 is de-energized, the lifting rope paying-off device 1 recovers and adjusts the scale rope 3, the level and plumb position of the adjusting block 52 will change under the tension of the adjusting spring 56, and when the first laser transmitter 531 and the second laser transmitter 532 are captured by the first receiving ring 411 and the second receiving ring 412, respectively, the plumb adjustment of the scale rope 3 is completed, and at this time, the adjusting block 52 and the laser range finder 55 below it also maintain the plumb state.
In this embodiment, the water level measuring assembly 2 includes: the air filling counterweight disc 21 and the water filling counterweight disc 22 are circumferentially provided with filling air bags 23, the filling air bags 23 are communicated with compressed gas in the air filling counterweight disc 21, a water injection cylinder 24 is arranged between the air filling counterweight disc 21 and the water filling counterweight disc 22, and the water injection cylinder 24 is communicated with liquid in the water filling counterweight disc 22;
a floating slide bar 25 slidably penetrating the water-filling weight plate 22 through a sealing slide assembly 26;
a water level receiver 27 disposed at one end of the floating slide bar 25; and
A horizontal floating plate 28 is arranged at one end of the floating slide bar 25 away from the water level receiver 27.
It should be noted that the end of the water level receiver 27 has two contact ends, and when the two contact ends contact the water surface, a closed circuit can be formed, and when the two contact ends are separated from the water surface, the closed circuit is opened.
Initially, the water level receiver 27 is immersed in water, the compressed gas in the inflatable counterweight disc 21 inflates the filling air bag 23, equipment is clamped on the peripheral wall of an observation well, then the scale rope 3 is used for recovering plumb for adjustment, after adjustment is completed, liquid in the water filling counterweight disc 22 fills water in the water filling cylinder 24, the horizontal floating plate 28 drives the water level receiver 27 to ascend under the buoyancy of water, when two contact ends of the end part of the water level receiver 27 are separated from the water surface, a closed circuit is disconnected to stop filling water, at the moment, the horizontal floating plate 28 keeps a horizontal state and is not influenced by the inclination of the water level measuring assembly 2, the laser range finder 55 can vertically hit the upper surface of the horizontal floating plate 28 to measure the compensation distance, and the influence of the inclination of the device on the result is effectively avoided.
The distance from the horizontal floating plate 28 of the device to the water level receiver 27 is a constant distance of the device, and finally the constant distance, the compensation distance and the scale rope are added to automatically obtain the water level depth.
In this embodiment, the seal slide assembly 26 includes: the sealing slide block 261 is penetratingly arranged in the water filling weight plate 22 through a micro-force spring 262, and a flexible waterproof film 263 is arranged between the sealing slide block 261 and the water filling weight plate 22.
It should be explained that the floating sliding rod 25 is disposed in the sealing sliding block 261 in a sliding manner, the water filling weight plate 22 is provided with a through hole, the diameter of the through hole is far greater than the outer diameter of the sealing sliding block 261, and the peripheral wall of the sealing sliding block 261 is connected with the inner wall of the through hole provided by the water filling weight plate 22 through the micro force spring 262.
When the water level measuring assembly 2 is slightly inclined, the horizontal floating plate 28 can drive the floating sliding rod 25 to conduct plumb adjustment under the buoyancy of water, the sealing sliding block 261 is connected by the micro-force spring 262, and the floating sliding rod 25 is prevented from being unable to conduct adjustment.
When the device is implemented, firstly, the lifting rope paying-off device 1 is started to put the device into an observation well, when the water level receiver 27 is immersed into water, the lifting rope paying-off device 1 is stopped, compressed gas in the inflatable counterweight disc 21 inflates the filling air bag 23, and the device is clamped on the peripheral wall of the observation well;
Then the electromagnet 54 is de-energized, and the scale cord 3 is recovered so that the first laser transmitter 531 and the second laser transmitter 532 are captured by the first receiving ring 411 and the second receiving ring 412, respectively, to complete plumb adjustment;
finally, the water in the water filling balance weight disc 22 fills the water in the water filling barrel 24, the horizontal floating plate 28 drives the water level receiver 27 to rise under the buoyancy of the water, when the two contact ends of the end part of the water level receiver 27 are separated from the water surface, the closed circuit is opened to stop filling water, the laser distance measuring device 55 is used for measuring the compensation distance, and the measured water level is automatically calculated through the system.
The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (2)

1. The utility model provides a water level measurement equipment in ground drilling which characterized in that: comprising the following steps: the automatic water level compensation device comprises lifting rope paying-off equipment (1) and a water level measurement assembly (2), wherein a scale rope (3) capable of being automatically wound and unwound is arranged inside the lifting rope paying-off equipment (1), a rope guide assembly (4) is arranged at the lower end of the lifting rope paying-off equipment (1), a plumb assembly (5) is connected below the rope guide assembly (4) through the scale rope (3), the plumb state of the scale rope (3) can be ensured in the measurement process, the influence of groundwater flow on the scale rope (3) can be prevented, and the water level measurement assembly (2) can further compensate and measure the water level and improve the measurement accuracy;
The rope guide assembly (4) comprises: the guide disc (41) is arranged at the lower end of the lifting rope paying-off device (1) and is positioned right above the observation well, a guide hole (42) is formed in the center of the guide disc (41), and two guide wheels (43) are symmetrically arranged on the inner wall of the guide hole (42);
A first receiving ring (411) and a second receiving ring (412) are coaxially arranged on one side of the guide disc (41) close to the water surface, and the width of the first receiving ring (411) is far greater than that of the second receiving ring (412);
The plumb assembly (5) comprises:
the circumference of the fixed seat (51) is provided with a plurality of water level measuring assemblies (2);
The adjusting block (52) is connected with the fixed seat (51) through an adjusting spring (56);
a positioning transmitting disc (53) arranged at the upper end of the adjusting block (52);
The electromagnet (54) is arranged at one end of the adjusting block (52) close to the water level measuring assembly (2); and
The laser distance measuring device (55) is arranged at the lower end of the adjusting block (52);
a plurality of first laser transmitters (531) are arranged on the circumference of the positioning transmitting disc (53) far away from the circle center, a plurality of second laser transmitters (532) are arranged on the circumference of the positioning transmitting disc near the circle center, and the beam diameter of the first laser transmitters (531) is far greater than that of the second laser transmitters (532);
The water level measuring assembly (2) comprises: the device comprises an inflatable counterweight disc (21) and a water filling counterweight disc (22), wherein filling air bags (23) are arranged on the circumferences of the inflatable counterweight disc (21) and the water filling counterweight disc (22), the filling air bags (23) are communicated with compressed gas in the inflatable counterweight disc (21), a water injection cylinder (24) is arranged between the inflatable counterweight disc (21) and the water filling counterweight disc (22), and the water injection cylinder (24) is communicated with liquid in the water filling counterweight disc (22); the floating slide rod (25) is arranged in the water filling counterweight disc (22) in a sliding and penetrating way through the sealing sliding assembly (26); the water level receiver (27) is arranged at one end of the floating slide rod (25); and a horizontal floating plate (28) arranged at one end of the floating slide bar (25) far away from the water level receiver (27);
When the method is implemented, firstly, the lifting rope paying-off equipment (1) is started to put the equipment into an observation well, when the water level receiver (27) is immersed into water, the lifting rope paying-off equipment (1) is stopped, compressed gas in the inflatable counterweight disc (21) inflates the filling air bag (23), and the equipment is clamped on the peripheral wall of the observation well; the electromagnet (54) is then de-energized, and the scale cord (3) is retracted such that the first laser emitter (531) beam and the second laser emitter (532) beam are captured by the first receiving ring (411) and the second receiving ring (412), respectively, to complete plumb adjustment.
2. An apparatus for measuring water level in a rock-soil borehole according to claim 1, wherein: the seal slide assembly (26) includes: the sealing slide block (261) is penetrated and arranged in the water filling counterweight disc (22) through the micro-force spring (262), and a flexible waterproof film (263) is arranged between the sealing slide block (261) and the water filling counterweight disc (22).
CN202310414815.3A 2023-04-18 2023-04-18 Water level measurement equipment in rock-soil drilling hole Active CN116464429B (en)

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CN116464429B true CN116464429B (en) 2024-07-05

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Publication number Priority date Publication date Assignee Title
CN116624140B (en) * 2023-07-26 2023-09-29 山东省地质测绘院 Geothermal well liquid level measuring device and measuring method
CN117705219B (en) * 2024-02-05 2024-05-28 青岛地质工程勘察院(青岛地质勘查开发局) Drilling water level measuring device for hydrogeology investigation

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CN101469609A (en) * 2007-12-26 2009-07-01 李枝梅 Oil pumping well liquid level measuring systems, measuring method and oil pumping well oil extraction technique integrated control system
CN114991756A (en) * 2022-05-16 2022-09-02 浙大城市学院 Sewage well liquid level monitoring system

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CN201301703Y (en) * 2008-09-26 2009-09-02 天津大学 Device for measuring water level of underground well
CN111655971A (en) * 2018-01-16 2020-09-11 Qed环境***有限责任公司 Fluid level monitoring system and method incorporating a pressure sensor system with an inflatable/collapsible bag
GB201913194D0 (en) * 2019-09-12 2019-10-30 Welldata Subsurface Surveillance Systems Ltd Measurement method and apparatus
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Publication number Priority date Publication date Assignee Title
CN101469609A (en) * 2007-12-26 2009-07-01 李枝梅 Oil pumping well liquid level measuring systems, measuring method and oil pumping well oil extraction technique integrated control system
CN114991756A (en) * 2022-05-16 2022-09-02 浙大城市学院 Sewage well liquid level monitoring system

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