CN101464481A - Resistivity monitoring method and apparatus for sea floor erosion/deposition dynamic process - Google Patents
Resistivity monitoring method and apparatus for sea floor erosion/deposition dynamic process Download PDFInfo
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- CN101464481A CN101464481A CNA2008102497691A CN200810249769A CN101464481A CN 101464481 A CN101464481 A CN 101464481A CN A2008102497691 A CNA2008102497691 A CN A2008102497691A CN 200810249769 A CN200810249769 A CN 200810249769A CN 101464481 A CN101464481 A CN 101464481A
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Abstract
The invention relates to a specific resistance monitoring device used in a seabed erosion-deposition dynamic process, which comprises a detecting sensing device, an automatic control recording device and an outer shell thereof, and is characterized in that a plurality of electrodes fixed on an outer wall of a PVC pipe in an equidistant manner are arranged on the detecting sensing device; in the PVC pipe, a lead penetrates through the wall of the PVC pipe and leads the electrodes into the automatic control recording device; a force bearing shaft passes through the outer shell of the automatic control recording device and an axle wire of the PVC pipe, is connected with a conical head on the bottom of the PVC pipe, and is fixed on the top of the outer shell of the automatic control recording device through a shim block and a nut in a sealing manner; and the automatic control recording device comprises an electrode switch control module, a data acquisition module, a microprocessor, a USB mass storage, a battery and a clock module. The real-time, long-term and continuous monitoring on the seabed erosion-deposition dynamic changing process can be realized; and the specific resistance monitoring device is especially suitable for the monitoring on the seabed erosion-deposition dynamic process in common oceanic conditions and extreme oceanic conditions.
Description
Technical field
The invention belongs to the Ocean Surveying technical field, relate to dynamically, circulation measures near the certain limit maritime interior waters seabed interface, sedimental resistivity value, with the method and apparatus of the long-pending process dynamic monitoring of sea bed erosion of the variation of interpretation seabed interface position.
Background technology
The sea bed sediment can suffer erosion or deposit under seawater eroding, and these two kinds of processes are dynamic, all may take place when extreme sea conditions such as orderly sea and storm.Because the variation of seabed interface position elevation, reflect that directly sea bed suffers erosion or the alluvial situation takes place, technology and method that at present the most frequently used monitoring sea bed corrodes alluvial have following two kinds:
The one, use optoelectronic induction feeler lever device.A plurality of photo-sensitive cells that distribute on the feeler lever can be converted into daylight electric signal output and show, feeler lever inserts the buried daylight that do not receive of sediment rear section photo-sensitive cell, sea bed sediment interface descends when sea bed weathers, and the photo-sensitive cell that exposes increases, and the electric signal of generation is strengthened; The electric signal minimizing that photo-sensitive cell then produces is blocked in the sediment alluvial, judges the seabed interface elevation change with this.This technology requires to limit it to the harshness of light source and uses, and also can't round-the-clockly carry out the dynamic real-time monitoring that seabed interface is under water invaded silt, and real-time is poor;
Two are to use acoustic technique.Utilize the underwater sound wave reflection probe to launch sound wave to the bottom, the time difference that receives sound wave by velocity of wave and emission is calculated sea bed reflecting surface elevation, judges that according to the variation of height sea bed corrodes the alluvial situation.This method is the reflection wave confusion when silt content is big in water, is difficult to judge the sea bed elevation, and has long cable when using and be exposed in the water.So high sea etc. to the most serious sea situation of corrosive effect under, flow rate of water flow is big, silt content height in the water, the elevation change of sea bed during this technology can't write down, and circuit is damaged easily.
In sum, present sea bed corrodes the alluvial monitoring technology and is difficult to accomplish to invade the dynamic monitoring record of silt process, and is subjected to the restriction of sea situation.Can under normal sea situation and extreme sea condition, all can implement continuously, monitor in real time the device that sea bed corrodes the alluvial dynamic process so be badly in need of development at present.
Summary of the invention
The purpose of this invention is to provide a kind of sea bed real-time, long-term, that can overcome the extreme sea condition influence and corrode method and apparatus---sea bed erosion/deposition dynamic process resistivity monitoring method and the device that alluvial is monitored, overcome the deficiencies in the prior art, amass speed etc. with erosion amount, siltation volume, the erosion of real-time monitoring sea bed.
We's ratio juris is according to significant difference on seawater about the seabed interface and the sediment resistivity, by near the resistivity value on vertical collection, the analysis sea bed, analysis obtains resistivity and the marked change position occurs, thereby draw the position of seabed interface, the variation of composite record assay surface position has realized the dynamic monitoring that sea bed corrodes depositing process.
The present invention is achieved in that and the present invention includes the detection sensing device, automatic controlling recording device and shell thereof, it is characterized in that, described detection sensing device has some electrodes that equidistantly are fixed on the pvc pipe outer wall, having lead to penetrate the pvc pipe wall in the pvc pipe guides to electrode in the automatic controlling recording device, a load axle passes the axis of the shell and the pvc pipe of automatic controlling recording device, be connected with conehead in the pvc pipe bottom, fix with pad and nut seal at the automatic top of the shell of controlling recording device, described automatic controlling recording device has the electrode switch control module, data acquisition module, microprocessor, the USB massage storage, battery and clock module.
Advantage of the present invention: realize real-time, the continuous monitoring of the long-pending dynamic changing process of sea bed erosion; Use the Circuits System of self-powered supply low-power consumption, be not subjected to weather effect; The USB design Storage can be stored the data volume up to 100,000,000, implements long term monitoring; The design of conehead makes injection convenient, and well stationary installation prevents to be destroyed by seawater, is suitable for the sea bed erosion/deposition dynamic process monitoring of general sea situation and extreme sea condition.
Description of drawings
Fig. 1, general structure synoptic diagram of the present invention.
Fig. 2, decomposition texture synoptic diagram of the present invention.
The electrode of Fig. 3, detection sensing device of the present invention, lead connection diagram.
Fig. 4, automatic controlling recording apparatus structure connection diagram of the present invention.
Seawater and sedimental resistivity curve synoptic diagram near the sea bed that Fig. 5, the present invention record.
Among the figure, 1, conehead, 2, the load axle, 3, pvc pipe, 4, electrode, 5, lead, 6, battery, 7, electrode switch control module, 8, microprocessor, 9, data acquisition module, 10, USB massage storage, 11, clock module, 12, pad, 13, nut, 14, shell, 15, automatic controlling recording device.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, the present invention includes the detection sensing device, automatic controlling recording device and shell thereof, it is characterized in that, described detection sensing device has some electrodes 4 that equidistantly are fixed on pvc pipe 3 outer walls, having lead 5 to penetrate the pvc pipe wall in the pvc pipe 3 guides to electrode 4 in the automatic controlling recording device 15, a load axle 2 passes the axis of the shell 14 and the pvc pipe 3 of automatic controlling recording device 15, be connected with conehead 1 in pvc pipe 3 bottoms, with pad 12 and nut 13 sealing and fixing, described automatic controlling recording device 15 has electrode switch control module 7 at the top of the automatic shell 14 of controlling recording device 15, data acquisition module 9, microprocessor 8, USB massage storage 10, battery 6 and clock module 11.
Wherein, lead passes the aperture glue and the encapsulant sealing and fixing of pvc pipe, the contact position of conehead and pvc pipe also carries out sealing and fixing to be handled, automatically the electrode switch control module in the controlling recording device, data acquisition module,, USB massage storage and clock module all be connected on the microprocessor, by the microprocessor Control work, clock module is used to be provided with time parameter and record acquisition time.
As Fig. 1, shown in Figure 2, pvc pipe 3 can be selected external diameter 7.5cm for use, the about 3mm of wall thickness.The load shaft diameter can be 3cm, load axle and conehead are all selected alloy material for use, corrosion-resistant and will have than hard intensity, acting force when load axle 2 is used for bearing injection and the wave effect when water, its both end thread, bottom and conehead 1 screw thread are twisted and are connected together, pass of pad 12 sealings of the position of automatic controlling recording crust of the device 14 with elastomeric material, and it is fixing with fastening nut 13, with stationary installation, its top is the diameter round platform suitable with pvc pipe 3 internal diameters, inserts in the pvc pipe 3 to interfix in the conehead 1 insertion sediment, screw hole is arranged on the round platform, make things convenient on load axle 2 spins.Conehead 1 will be used glue and epoxy sealing with pvc pipe 3 contact positions.Conehead 1 Design of length has 1m, 2m, and three kinds of specifications of 3m guarantee that the enough degree of depth of injection guarantee that registering instrument is stable.
Instrument enters automatic work behind the power-on switch, by microprocessor 8 control electrode switch modules, with the access part of data acquisition of electrode sequential loop, import microprocessor processes into and obtain resistivity data after by part of data acquisition acquired signal and conversion, deposit the USB massage storage in; Sort circuit control has realized that to the mensuration along near the resistivity of media feeler lever vertical profile promptly seawater and sediment resistivity are analyzed depositing process is corroded in realization to sea bed dynamic monitoring according to these data.
It is that the copper wire of 1～2mm is tightly done around pvc pipe and circularized that electrode 4 can be selected diameter for use, with the wire bonds that penetrates tube wall from pvc pipe inside together, the lead other end is connected the aperture epoxy sealing that lead passes with electrode switch module the automatic controlling recording device.Electrode number is 100, and the adjacent electrode spacing is 1cm, but also can be according to the needs electrode number of monitoring, but should not lack 50 to guarantee that image data enough analyzes.
Be example with 100 electrodes below, on-site measurement method of the present invention is as follows:
Set the parameter of automatic controlling recording device, comprise frequency acquisition, beginning acquisition time and finish acquisition time.
At first, by load axle 2 being applied penetrating power conehead 1 and pvc pipe 3 are inserted in the sea bed sediment, and half (50) electrode 4 is imbedded in the sediment, and top residue electrode 4 will be exposed in seawater or the air at selected sea bed monitoring place or erect-position; Shell 14 sockets of then inside being equipped with self-recording unit 15 are sealed in pvc pipe 3 tops, after load axle 2 passes shell 14 end faces, tighten sealing and fixing with pad 12 and nut 13; Start working according to the time instrument of setting again; Microprocessor 8 control electrode switch modules, with symmetrical four-electrode method, promptly first electrode from bottommost begins to connect four electrodes at every turn, at first with first～the 4th electrode insert data acquisition module, data acquisition module is controlled first and the 4th electrode power supply, second and the 3rd measuring voltage or electric current process data into resistivity data and deposit the USB massage storage in; Upwards connect four electrodes again since second electrode from the bottom then, repeated acquisition and storage until last four electrodes, are circulated to bottom repeated acquisition storing process after the end, and this method is called symmetrical four-electrode method.In the time that sets, constantly repeat the circle collection that above-mentioned steps is carried out resistivity value according to the frequency acquisition that is provided with.Promptly realize the seawater and the sedimental determination of resistivity of coastal bed vertical section, obtained the change in resistance curve on vertical in the seabed interface certain limit.
After the monitoring of a period of time through setting, the data of gathering are imported on the bank the host computer carry out analyzing and processing, resistivity value sudden change location determination seabed interface at above-mentioned change in resistance curve, the seabed interface position of contrast different time, just obtained seabed interface dynamic change in time, promptly can obtain speed and total amount that sea bed corrodes alluvial, realize carrying out the real-time monitoring that sea bed corrodes the alluvial dynamic process with the method for resistivity.
Claims (5)
1, a kind of sea bed erosion/deposition dynamic process resistivity monitoring device, comprise the detection sensing device, automatic controlling recording device (15) and shell (14) thereof, it is characterized in that, described detection sensing device has some electrodes (4) that equidistantly are fixed on pvc pipe (3) outer wall, having lead (5) to penetrate the pvc pipe wall in the pvc pipe (3) guides to electrode (4) in the automatic controlling recording device (15), a load axle (2) passes the axis of the shell (14) and the pvc pipe (3) of automatic controlling recording device (15), be connected with conehead (1) in pvc pipe (3) bottom, with pad (12) and nut (13) sealing and fixing, described automatic controlling recording device (15) has electrode switch control module (7) at the top of the automatic shell (14) of controlling recording device (15), data acquisition module (9), microprocessor (8), USB massage storage (10), battery (6) and clock module (11).
2, sea bed erosion/deposition dynamic process resistivity monitoring device as claimed in claim 1 is characterized in that above-mentioned electrode (4) around pvc pipe (3) surface is annular or short cylindrical.
3, sea bed erosion/deposition dynamic process resistivity monitoring device as claimed in claim 1 is characterized in that above-mentioned conehead (1) length is greater than 1/2 of load axle (2).
4, sea bed erosion/deposition dynamic process resistivity monitoring device as claimed in claim 1 is characterized in that the electrode switch control module (7) of above-mentioned automatic controlling recording device (15) realizes circle collection by microprocessor (8) control.
5, the method for utilizing sea bed erosion/deposition dynamic process resistivity monitoring device to monitor, it is characterized in that at first at selected sea bed monitoring place or erect-position, load axle (2) is applied penetrating power to be inserted conehead (1) and pvc pipe (3) in the sea bed sediment, and the electrode (4) of half quantity is imbedded in the sediment, top residue electrode (4) is exposed in seawater or the air; Shell (14) socket that will comprise automatic controlling recording device (15) then is sealed in pvc pipe (3) top, after load axle (2) passes shell (14) end face, tightens sealing and fixing with pad (12) and nut (13), starts working by the time instrument of setting again; Microprocessor (8) control electrode switch module (7), begin to connect four electrodes with symmetrical four-electrode method from first electrode of bottommost at every turn, promptly at first first is inserted data acquisition module to the 4th electrode, data acquisition module is controlled first and the 4th electrode power supply, second and the 3rd measuring voltage or electric current are with the treated USB massage storage that deposits in of data; Upwards connect four electrodes again from the bottom then since second electrode, repeated acquisition and storage, until last four electrodes, be recycled to bottom repeated acquisition storing process after the end, in the time that sets, constantly repeat above-mentioned steps according to the frequency acquisition that is provided with, promptly realized the seawater and the sedimental determination of resistivity of coastal bed vertical section, obtain in the seabed interface certain limit change in resistance curve on vertical as analyzing the multidate information that sea bed corrodes alluvial.
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| CNA2008102497691A CN101464481A (en) | 2008-12-31 | 2008-12-31 | Resistivity monitoring method and apparatus for sea floor erosion/deposition dynamic process |
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| CN102288646A (en) * | 2011-05-16 | 2011-12-21 | 中国海洋大学 | Automatic in-situ monitoring method and system for vertical distribution of concentration of sediment in seawater |
| CN102288647A (en) * | 2011-05-16 | 2011-12-21 | 中国海洋大学 | Automatic in-situ monitoring method and system for scope and degree of underground seawater intrusion |
| CN102287620A (en) * | 2011-05-25 | 2011-12-21 | 中国海洋大学 | System and method for automatic in-situ monitoring on leakage of underground sewage pipeline |
| CN102288258A (en) * | 2011-05-16 | 2011-12-21 | 青岛滩海工程咨询研究院 | System and method for remotely and automatically monitoring ocean sea levels in real time |
| CN102305813A (en) * | 2011-05-25 | 2012-01-04 | 青岛滩海工程咨询研究院 | In-situ, real-time and automatic monitoring system and method in soil water and salt transport process |
| CN102331275A (en) * | 2011-06-10 | 2012-01-25 | 中国海洋大学 | Penetration probe-based deep sea multi-element comprehensive observation system |
| CN104132710A (en) * | 2014-06-27 | 2014-11-05 | 华北水利水电大学 | Water level flow sensor, water level flow monitoring system and water level flow monitoring method |
| CN104502728A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Probe interface used for measuring resistivity |
| CN104502730A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Hand-held slurry resistivity measurement instrument |
| CN104502727A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Slurry resistivity measurement probe |
| CN106645303A (en) * | 2017-02-21 | 2017-05-10 | 辽宁省交通规划设计院有限责任公司 | Bridge pier scouring sensing apparatus |
| CN107941305A (en) * | 2017-11-16 | 2018-04-20 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
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| CN110487635A (en) * | 2019-09-05 | 2019-11-22 | 安徽理工大学 | The fast testing system and method for core resistivity and velocity of wave under a kind of stress state |
| CN111664887A (en) * | 2020-05-05 | 2020-09-15 | 中国海洋大学 | Resistivity probe rod-based seabed floating mud layer dynamic change in-situ observation method |
| CN116577259A (en) * | 2023-07-04 | 2023-08-11 | 中国地质大学（北京） | In-situ layering measuring device and measuring method for porosity of submarine sediment |
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| CN102288646A (en) * | 2011-05-16 | 2011-12-21 | 中国海洋大学 | Automatic in-situ monitoring method and system for vertical distribution of concentration of sediment in seawater |
| CN102288647A (en) * | 2011-05-16 | 2011-12-21 | 中国海洋大学 | Automatic in-situ monitoring method and system for scope and degree of underground seawater intrusion |
| CN102288258A (en) * | 2011-05-16 | 2011-12-21 | 青岛滩海工程咨询研究院 | System and method for remotely and automatically monitoring ocean sea levels in real time |
| CN102287620A (en) * | 2011-05-25 | 2011-12-21 | 中国海洋大学 | System and method for automatic in-situ monitoring on leakage of underground sewage pipeline |
| CN102305813A (en) * | 2011-05-25 | 2012-01-04 | 青岛滩海工程咨询研究院 | In-situ, real-time and automatic monitoring system and method in soil water and salt transport process |
| CN102305813B (en) * | 2011-05-25 | 2013-06-05 | 青岛滩海工程咨询研究院 | In-situ, real-time and automatic monitoring system and method in soil water and salt transport process |
| CN102331275A (en) * | 2011-06-10 | 2012-01-25 | 中国海洋大学 | Penetration probe-based deep sea multi-element comprehensive observation system |
| CN104132710A (en) * | 2014-06-27 | 2014-11-05 | 华北水利水电大学 | Water level flow sensor, water level flow monitoring system and water level flow monitoring method |
| CN104132710B (en) * | 2014-06-27 | 2018-05-18 | 华北水利水电大学 | Stage-discharge sensor, stage-discharge monitoring system and stage-discharge monitoring method |
| CN104502727A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Slurry resistivity measurement probe |
| CN104502730A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Hand-held slurry resistivity measurement instrument |
| CN104502728A (en) * | 2014-11-07 | 2015-04-08 | 贝兹维仪器(苏州)有限公司 | Probe interface used for measuring resistivity |
| CN106645303A (en) * | 2017-02-21 | 2017-05-10 | 辽宁省交通规划设计院有限责任公司 | Bridge pier scouring sensing apparatus |
| CN107941305A (en) * | 2017-11-16 | 2018-04-20 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
| CN107941305B (en) * | 2017-11-16 | 2019-10-18 | 山东大学 | A kind of drowned flow artificial wet land water level gauge and its detection method |
| CN108253881A (en) * | 2018-01-18 | 2018-07-06 | 华侨大学 | A kind of offshore platform pile foundation scour hole configuration measurement mechanism and application method |
| CN110487635A (en) * | 2019-09-05 | 2019-11-22 | 安徽理工大学 | The fast testing system and method for core resistivity and velocity of wave under a kind of stress state |
| CN111664887A (en) * | 2020-05-05 | 2020-09-15 | 中国海洋大学 | Resistivity probe rod-based seabed floating mud layer dynamic change in-situ observation method |
| CN116577259A (en) * | 2023-07-04 | 2023-08-11 | 中国地质大学（北京） | In-situ layering measuring device and measuring method for porosity of submarine sediment |
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