CN108020646A - In site measurement sea-sediment interface position and the device and method of mechanical characteristic - Google Patents
In site measurement sea-sediment interface position and the device and method of mechanical characteristic Download PDFInfo
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- CN108020646A CN108020646A CN201810114193.1A CN201810114193A CN108020646A CN 108020646 A CN108020646 A CN 108020646A CN 201810114193 A CN201810114193 A CN 201810114193A CN 108020646 A CN108020646 A CN 108020646A
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Abstract
The invention discloses a kind of in site measurement Marine Sediment interface location and the device and method of mechanical characteristic, wherein device includes penetration resistance measuring system, slurry viscosity measuring system, granule density measuring system, Aided Machine control system；Penetration resistance measuring system is installed on the top of Aided Machine control system, for penetration resistance of the measuring device during decline；Slurry viscosity measuring system is arranged at the lower end of penetration resistance measuring system, the fluid viscosity under measurable difference shear rates；Granule density measuring system is made of two infrared sand-measuring meters；Two infrared sand-measuring meters are symmetrically welded on the lower face of mounting disc by metallic rod.The present invention can measure the properties such as suspension concentration, viscosity and the penetration resistance of Marine Sediment near interface regional fluid, while the positional information at the measurable Marine Sediment interface of variation tendency according to this three kinds of data.
Description
Technical field
The present invention relates to a kind of device and method, more particularly to a kind of in site measurement sea-sediment interface position and power
The device and method of characteristic is learned, belongs to seabottom geology detection technology field.
Background technology
Seawater and the boundary layer position of bottom sediment and its mechanical characteristic, are marine geochemistry and marine geophysics
Important content in the researchs such as research, oceanic mineral resources exploitation.Sea-sediment interface be not only physics and mechanical property,
The most significant border of biochemical characteristic etc. otherness, and be that engineering fills in oceanic mineral resources exploration and recovery process
Standby brace foundation, thus quickly and accurately measure the interface position and its mechanical characteristic in Marine Geology research and ocean work
It is particularly important in Cheng Zuoye.
In the development of ocean development work, Underwater Detection is the main means of current underwater telemetry, but in seawater-seabed
In the measurement of Sediment Interface, the result is that qualitatively, and be often inaccurate；And bottom sediment sample is gathered in laboratory
Inside measure, often because destroying original sample structure, cause test result inaccurate.
Show through result of study, at seawater-bottom sediment interface, the changes of sediment concentration and hydrodynamics all compared with
It is clear water zone and semi-liquefied layer on the interface to be notable, because sediment concentration is increased sharply under the interface, porosity is significantly
Reduce, show as the property of lotion, therefore seawater-deposition is measured using sediment concentration and the significant changes of hydrodynamics
The position at thing interface becomes a kind of feasible method.
The content of the invention
In order to solve the shortcoming present in above-mentioned technology, the present invention provides a kind of in site measurement seawater-sediment
The device and method of interface location and mechanical characteristic.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of in site measurement seawater-sediment circle
Face position and the device of mechanical characteristic, including penetration resistance measuring system, slurry viscosity measuring system, granule density measurement system
System, Aided Machine control system；Aided Machine control system includes upper bed-plate, middle base, lower bottom base；Upper bed-plate and middle base,
Middle base is connected with lower bottom base by rack；
Penetration resistance measuring system is installed on the top of Aided Machine control system, for measuring device during decline
Penetration resistance, it include stepper motor, high-grade pressure gauge, stepper motor external part；Stepper motor is welded in upper bed-plate
It is middle；The upper end of stepper motor is connected by armored cable with the control system of the device, lower end is fixedly installed stepper motor
External part；The high-grade pressure gauge of measurement penetration resistance is installed on stepper motor external part；
Slurry viscosity measuring system includes being welded in the stepless variable-speed motor of stepper motor external part lower end, is arranged at nothing
The torque sensing that the shaft of level variable-speed motor lower end and shaft lower end pass through the rotor of threaded engagement and be placed in shaft
Device；Torque sensor is used for the moment of torsion for recording rotor generation, by varying the rotating speed and then change rotor of stepless variable-speed motor
Moment of torsion, it is measurable difference shear rates under fluid viscosity；
Torque sensor is fixedly installed in mounting disc, and mounting disc is coaxially disposed in the inner side of middle base；Shaft is from installation
The circle centre position of disk is passed through and is connected by bearing with mounting disc；
Granule density measuring system is made of two infrared sand-measuring meters；Two infrared sand-measuring meters are symmetrically welded by metallic rod
On the lower face of mounting disc, and the center of two infrared sand-measuring meters is on same horizontal line；The lower face of mounting disc is also
It is connected by metallic rod with temperature sensor；Temperature sensor, rotor, the center of infrared sand-measuring meter are in same horizontal plane
On.
Inclination sensor is fixedly installed on lower bottom base, and the lower end of lower bottom base is evenly arranged with multiple leveling supporting legs.
Infrared sand-measuring meter includes housing；Housing is internally provided with infrared transmitter and photoelectric sensor；The side of housing
For organic glass wall.
Angulation is equal between infrared transmitter and organic glass wall, between photoelectric sensor and organic glass wall.
Angle between infrared transmitter and photoelectric sensor is 20~60 °.
Photophore in infrared transmitter is GaAs infrared light-emitting diode, is 800nm's for emission peak wavelength
Infrared light；Photoelectric sensor is used to measure angle of scattering of the infrared light after fluid for 135 ° of scattering light.
Photoelectric sensor, torque sensor are connected by data transmission module with the control system of whole ship, for dividing
Rotor torque, scattering light data are not transferred to the control system of whole ship, so the fluid viscosity at interface where calculating rotor and
Sediment concentration.
Rotor is cylinder.
A kind of measuring method of the device of in site measurement sea-sediment interface position and mechanical characteristic, concretely comprises the following steps：
A, after at sea exploring ship arrival indication measurement place, it is ensured that in-situ measurement device, which is in, normally can be used shape
State；By in-situ measurement device or it is equipped with being put under the bathyscaph of in-situ measurement device marine using winch and armored cable, leads to
Electronic monitoring and control system is crossed to be monitored in-situ measurement device；
B, after measuring device reaches seabed in the original location, inclination information is passed using the inclination sensor being arranged on lower bottom base
It is defeated by ship；Again by leveling supporting legs come the leveling of realization device, and rotor is set to be on sea-sediment interface；
C, by the control system control stepless variable-speed motor rotation of whole ship, lead to after measuring device leveling according to step b
Cross the moment of torsion that torque sensor record rotor produces；Different shear rates can be measured by varying stepless variable-speed motor rotating speed
Lower fluid viscosity；Meanwhile infrared transmitter transmitting infrared light is controlled, and infrared light is measured after fluid by photoelectric sensor
Scatter light；Scattering light data and rotor torque are transmitted to the control system of whole ship by data transmission module, are respectively used to
The fluid viscosity and sediment concentration at interface where calculating rotor；
D, after completing one-shot measurement, slurry viscosity measuring system and infrared sand-measuring meter are declined by stepper motor external part
One unit height, during decline, penetration resistance is measured by high-grade pressure gauge；After another height is reached, weight
Operation fluid viscosity and sediment concentration in multiple step c are measured again；
E, the variation tendency of sediment concentration, fluid viscosity and penetration resistance data is divided by the analysis system of ship
Analysis, then in conjunction with the elevation information of rotor center, calculates position and and its mechanical property of sea-sediment interface.
The present invention equipped with slurry viscosity measuring system, measuring concentration of granules in certain system and penetration resistance measuring system,
The properties such as suspension concentration, viscosity and the penetration resistance of sea-sediment interface near zone fluid can be measured, while according to this
The positional information of the measurable sea-sediment interface of variation tendency of three kinds of data；In addition, measuring device structure is tight in the present invention
Gather, it is stable, support can be provided for seabottom geology detection technology field.
Brief description of the drawings
Fig. 1 is the overall structure diagram of in-situ measurement device.
Fig. 2 is the structure diagram of slurry viscosity measuring system.
Fig. 3 is the sectional structure chart of infrared sand-measuring meter.
In figure：1st, mounting disc；2nd, temperature sensor；31st, rack；32nd, lower bottom base；33rd, leveling supporting legs；34th, middle base；
35th, upper bed-plate；4th, infrared sand-measuring meter；51st, stepless variable-speed motor；52nd, torque sensor；53rd, shaft；54th, rotor；61st, walk
Stepper motor；62nd, high-grade pressure gauge；63rd, stepper motor external part.
Embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
The device of a kind of in site measurement sea-sediment interface position and mechanical characteristic shown in Fig. 1, including penetration resistance
Measuring system, slurry viscosity measuring system, granule density measuring system, Aided Machine control system；Aided Machine control system
For providing installation support, including upper bed-plate 35, middle base 34, lower bottom base 32 for other components；Upper bed-plate 35 and middle base 34,
Middle base 34 is connected with lower bottom base 32 by rack 31；Wherein, middle base 34, lower bottom base 32 are circle.
Penetration resistance measuring system is installed on the top of Aided Machine control system, for measuring device during decline
Penetration resistance, it include stepper motor 61, high-grade pressure gauge 62, stepper motor external part 63；Stepper motor 61 is welded in
The centre of upper bed-plate 35；The upper end of stepper motor 61 is connected by armored cable with the control system of the device, lower end is fixed and set
It is equipped with stepper motor external part 63；Stepper motor external part 63 may extend away length under the action of control system, easy to adjust slurry
The height of body viscosity measuring system and granule density measuring system；Measurement penetration resistance is installed on stepper motor external part 63 to use
High-grade pressure gauge 62；
As shown in Fig. 2, slurry viscosity measuring system includes the variable speed electricity for being welded in 63 lower end of stepper motor external part
Motivation 51, the shaft 53 for being arranged at 51 lower end of stepless variable-speed motor, with 53 lower end of shaft by the rotor 54 of threaded engagement with
And it is placed on the torque sensor 52 in shaft 53；Torque sensor 52 is used for the moment of torsion for recording the generation of rotor 54, by varying
The rotating speed of stepless variable-speed motor 51 and then the moment of torsion for changing rotor 54, the fluid viscosity under measurable difference shear rates；
Torque sensor 52 is fixedly installed in mounting disc 1, and mounting disc 1 is coaxially disposed in the inner side of middle base 34；Shaft
53 pass through from the circle centre position of mounting disc 1 and are connected by bearing with mounting disc 1；
Granule density measuring system is made of two infrared sand-measuring meters 4；Two infrared sand-measuring meters pass through metallic rod balanced welding
It is connected on the lower face of mounting disc 1, and the center of two infrared sand-measuring meters is on same horizontal line；The lower end of mounting disc 1
Face is also connected by metallic rod with temperature sensor 2, and the temperature of environment is surveyed for monitoring in real time；Temperature sensor 2, rotor
54th, the center of infrared sand-measuring meter 4 is on same horizontal plane.
Inclination sensor is fixedly installed on lower bottom base 32, and the lower end of lower bottom base 32 is evenly arranged with multiple leveling supporting legs
33, the height of leveling supporting legs 33 can be adjusted under the action of whole ship control system.The quantity of leveling supporting legs 33 is preferably 4
It is a.
As shown in figure 3, infrared sand-measuring meter 4 includes housing；Housing is internally provided with infrared transmitter 41 and photoelectric sensing
Device 42；The side of housing is organic glass wall 43.Between infrared transmitter 41 and organic glass wall 43, photoelectric sensor 42 is with having
Angulation is equal between machine glass wall 43.Angle between infrared transmitter 41 and photoelectric sensor 42 is 20~60 °, excellent
Elect 45 ° as.
Photophore in infrared transmitter 41 is GaAs infrared light-emitting diode, is 800nm for emission peak wavelength
Infrared light；Photoelectric sensor 42 is used to measure angle of scattering of the infrared light after fluid for 135 ° of scattering light.
Photoelectric sensor 42, torque sensor 52 are connected by data transmission module with the control system of whole ship, are used
The fluid at interface glues where rotor torque, scattering light data are transferred to the control system of whole ship respectively, and then calculate rotor
Degree and sediment concentration.
In order to reduce fluid resistance, rotor 54 is preferably cylinder.
A kind of measuring method of the device of in site measurement sea-sediment interface position and mechanical characteristic, its specific steps
For：
A, after at sea exploring ship arrival indication measurement place, it is ensured that in-situ measurement device, which is in, normally can be used shape
State；By in-situ measurement device or it is equipped with being put under the bathyscaph of in-situ measurement device marine using winch and armored cable, leads to
Electronic monitoring and control system is crossed to be monitored in-situ measurement device；
B, after measuring device reaches seabed in the original location, using the inclination sensor being arranged on lower bottom base 32 by inclination information
It is transferred to ship；Again by leveling supporting legs 33 come the leveling of realization device, and make rotor 54 be in sea-sediment interface it
On；
C, rotated according to step b by after measuring device leveling by the control system control stepless variable-speed motor 51 of whole ship,
The moment of torsion of the generation of rotor 54 is recorded by torque sensor 52；It can be measured different by varying 51 rotating speed of stepless variable-speed motor
Fluid viscosity under shear rate；Meanwhile control infrared transmitter 41 to launch infrared light, and infrared light is measured by photoelectric sensor 42
Scattering light after fluid；Scattering light data and rotor torque are transmitted to the control system of whole ship by data transmission module
System, is respectively used to the fluid viscosity and sediment concentration at interface where calculating rotor；
D, after completing one-shot measurement, by stepper motor external part 63 by slurry viscosity measuring system and infrared sand-measuring meter 4
Decline a unit height, during decline, penetration resistance is measured by high-grade pressure gauge 62；Reaching another height
Afterwards, the operation fluid viscosity in repeat step c and sediment concentration are measured again；
E, the variation tendency of sediment concentration, fluid viscosity and penetration resistance data is divided by the analysis system of ship
Analysis, then in conjunction with the elevation information at 54 center of rotor, calculates position and and its mechanical property of sea-sediment interface.
The present invention determines the interface using the significant difference of sea-sediment interface both sides suspension concentration and fluid viscosity
Specific location, it has the following advantages compared with prior art：
(1) simple in structure, operability is stronger, both can individually transfer to seabed, can also take makes on the bathyscaph of ocean
With；
(2) measurement result is accurate, and compared with Underwater Detection and laboratory measurement, error is obviously reduced；
(3) viscosity and silt of fluid under sea-sediment interface near zone difference shear rate be can accurately measure
The data such as concentration.
The above embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the range of technical scheme, also belong to this hair
Bright protection domain.
Claims (9)
1. a kind of in site measurement sea-sediment interface position and the device of mechanical characteristic, it is characterised in that：Including penetration resistance
Measuring system, slurry viscosity measuring system, granule density measuring system, Aided Machine control system；The Aided Machine control
System includes upper bed-plate (35), middle base (34), lower bottom base (32)；The upper bed-plate (35) and middle base (34), middle base
(34) it is connected with lower bottom base (32) by rack (31)；
The penetration resistance measuring system is installed on the top of Aided Machine control system, for measuring device during decline
Penetration resistance, it include stepper motor (61), high-grade pressure gauge (62), stepper motor external part (63)；The stepping electricity
Machine (61) is welded in the centre of upper bed-plate (35)；The control system that the upper end of stepper motor (61) passes through armored cable and the device
Connection, lower end are fixedly installed stepper motor external part (63)；Measurement injection is installed on the stepper motor external part (63)
The high-grade pressure gauge (62) of resistance；
The slurry viscosity measuring system include be welded in stepper motor external part (63) lower end stepless variable-speed motor (51),
Be arranged at stepless variable-speed motor (51) lower end shaft (53), with shaft (53) lower end by the rotor (54) of threaded engagement with
And it is placed on the torque sensor (52) in shaft (53)；Torque sensor (52) is used for the moment of torsion for recording rotor (54) generation,
By varying the rotating speed of stepless variable-speed motor (51) and then the moment of torsion of change rotor (54), under measurable difference shear rates
Fluid viscosity；
The torque sensor (52) is fixedly installed in mounting disc (1), and mounting disc (1) is coaxially disposed in the interior of middle base (34)
Side；The circle centre position of shaft (53) from mounting disc (1) is passed through and is connected by bearing with mounting disc (1)；
The granule density measuring system is made of two infrared sand-measuring meters (4)；Two infrared sand-measuring meters are symmetrical by metallic rod
It is welded on the lower face of mounting disc (1), and the center of two infrared sand-measuring meters is on same horizontal line；The mounting disc
(1) lower face is also connected by metallic rod with temperature sensor (2)；Temperature sensor (2), rotor (54), determining sand by infrared analysis
The center of instrument (4) is on same horizontal plane.
2. in site measurement sea-sediment interface position according to claim 1 and the device of mechanical characteristic, its feature exist
In：Inclination sensor is fixedly installed on the lower bottom base (32), and the lower end of lower bottom base (32) is evenly arranged with multiple leveling
Supporting leg (33).
3. in site measurement sea-sediment interface position according to claim 1 or 2 and the device of mechanical characteristic, it is special
Sign is：The infrared sand-measuring meter (4) includes housing；Housing is internally provided with infrared transmitter (41) and photoelectric sensor
(42)；The side of housing is organic glass wall (43).
4. in site measurement sea-sediment interface position according to claim 3 and the device of mechanical characteristic, its feature exist
In：Between the infrared transmitter (41) and organic glass wall (43), between photoelectric sensor (42) and organic glass wall (43)
Angulation is equal.
5. in site measurement sea-sediment interface position according to claim 4 and the device of mechanical characteristic, its feature exist
In：Angle between the infrared transmitter (41) and photoelectric sensor (42) is 20~60 °.
6. in site measurement sea-sediment interface position according to claim 5 and the device of mechanical characteristic, its feature exist
In：Photophore in the infrared transmitter (41) is GaAs infrared light-emitting diode, is 800nm for emission peak wavelength
Infrared light；The photoelectric sensor (42) is used to measure angle of scattering of the infrared light after fluid for 135 ° of scattering light.
7. in site measurement sea-sediment interface position according to claim 6 and the device of mechanical characteristic, its feature exist
In：The photoelectric sensor (42), torque sensor (52) are connected by data transmission module with the control system of whole ship,
For rotor torque, scattering light data to be transferred to the control system of whole ship respectively, and then calculate the fluid at rotor place interface
Viscosity and sediment concentration.
8. according to claim 1~7 any one of them in site measurement sea-sediment interface position and the dress of mechanical characteristic
Put, it is characterised in that：The rotor (54) is cylinder.
A kind of 9. measurement of the device of in site measurement sea-sediment interface position as claimed in claim 1 and mechanical characteristic
Method, it is characterised in that：The measuring method concretely comprises the following steps：
A, after at sea exploring ship arrival indication measurement place, it is ensured that in-situ measurement device is in normal serviceable condition；Profit
By in-situ measurement device or it is equipped with being put under the bathyscaph of in-situ measurement device marine with winch and armored cable, passes through electronics
Monitoring system is monitored in-situ measurement device；
B, after measuring device reaches seabed in the original location, inclination information is passed using the inclination sensor being arranged on lower bottom base (32)
It is defeated by ship；Again by leveling supporting legs (33) come the leveling of realization device, and make rotor (54) be in sea-sediment interface it
On；
C, by control system control stepless variable-speed motor (51) rotation of whole ship, lead to after measuring device leveling according to step b
Cross the moment of torsion that torque sensor (52) record rotor (54) produces；It can be measured not by varying 51 rotating speed of stepless variable-speed motor
With fluid viscosity under shear rate；Meanwhile infrared transmitter (41) transmitting infrared light is controlled, and measured by photoelectric sensor (42)
Scattering light of the infrared light after fluid；Scattering light data and rotor torque are transmitted to whole ship by data transmission module
Control system, is respectively used to the fluid viscosity and sediment concentration at interface where calculating rotor；
D, after completing one-shot measurement, by stepper motor external part (63) by slurry viscosity measuring system and infrared sand-measuring meter (4)
Decline a unit height, during decline, penetration resistance is measured by high-grade pressure gauge (62)；It is another high reaching
After degree, operation fluid viscosity and sediment concentration in repeat step c are measured again；
E, the variation tendency of sediment concentration, fluid viscosity and penetration resistance data is analyzed by the analysis system of ship,
Then in conjunction with the elevation information at rotor (54) center, position and and its mechanical property of sea-sediment interface are calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114193.1A CN108020646B (en) | 2018-02-05 | 2018-02-05 | Method for measuring sea water-sediment interface position and mechanical property in situ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810114193.1A CN108020646B (en) | 2018-02-05 | 2018-02-05 | Method for measuring sea water-sediment interface position and mechanical property in situ |
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| CN108020646B CN108020646B (en) | 2023-07-04 |
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| US5681982A (en) * | 1995-11-01 | 1997-10-28 | The Trustees Of Columbia University In The City Of New York | Probe for evaluating seafloor geoacoustic and geotechnical properties |
| CN104406938A (en) * | 2014-12-18 | 2015-03-11 | 黑龙江省水土保持科学研究院 | Reflective infrared sediment sensor for measuring content of sediment in water flow |
| CN104777042A (en) * | 2015-04-17 | 2015-07-15 | 长沙矿冶研究院有限责任公司 | Deep-sea sediment soil mechanics in-situ tester capable of carrying submersible vehicle |
| CN106769523A (en) * | 2016-12-23 | 2017-05-31 | 中国人民解放军军械工程学院 | Measurement apparatus for measuring soil mechanics characteristic |
| CN107328552A (en) * | 2017-06-30 | 2017-11-07 | 中国海洋大学 | A kind of seabed interface layer dynamic change in-situ observation system |
| CN207894914U (en) * | 2018-02-05 | 2018-09-21 | 中央民族大学 | The device of in situ measurement sea-sediment interface position and mechanical characteristic |
-
2018
- 2018-02-05 CN CN201810114193.1A patent/CN108020646B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5681982A (en) * | 1995-11-01 | 1997-10-28 | The Trustees Of Columbia University In The City Of New York | Probe for evaluating seafloor geoacoustic and geotechnical properties |
| CN104406938A (en) * | 2014-12-18 | 2015-03-11 | 黑龙江省水土保持科学研究院 | Reflective infrared sediment sensor for measuring content of sediment in water flow |
| CN104777042A (en) * | 2015-04-17 | 2015-07-15 | 长沙矿冶研究院有限责任公司 | Deep-sea sediment soil mechanics in-situ tester capable of carrying submersible vehicle |
| CN106769523A (en) * | 2016-12-23 | 2017-05-31 | 中国人民解放军军械工程学院 | Measurement apparatus for measuring soil mechanics characteristic |
| CN107328552A (en) * | 2017-06-30 | 2017-11-07 | 中国海洋大学 | A kind of seabed interface layer dynamic change in-situ observation system |
| CN207894914U (en) * | 2018-02-05 | 2018-09-21 | 中央民族大学 | The device of in situ measurement sea-sediment interface position and mechanical characteristic |
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