CN105806311A - Optical fiber slope dam displacement settlement monitoring system - Google Patents
Optical fiber slope dam displacement settlement monitoring system Download PDFInfo
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
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Abstract
The invention discloses an optical fiber slope dam displacement settlement monitoring system which comprises an optical fiber osmotic pressure sensor, an optical fiber displacement sensor, an optical fiber grid settlement sensor, an optical fiber water level sensor and a demodulator, wherein the optical fiber osmotic pressure sensor, the optical fiber displacement sensor, the optical fiber grid settlement sensor and the optical fiber water level sensor are connected with the demodulator through optical fiber; light emitted from a laser in the demodulator is transmitted to different sensors through optical cables; optical signals with information amount to be measured can be reflected back from the sensors; information to be measured is demodulated after the optical signals reach the demodulator to be displayed on a screen; the optical fiber osmotic pressure sensor is used for detecting information of a phreatic line; the optical fiber displacement sensor is used for detecting displacement information of a slope dam body; the optical fiber grid settlement sensor is used for detecting settlement information of the slope dam body; the optical fiber water level sensor is used for detecting the water level information of the slope dam body.
Description
Technical field
The present invention relates to field, mine, in particular to a kind of optical fiber slope dam displacement sedimentation monitoring system.
Background technology
In the field, mine of China, safety and benefit are eternal topics.Along with developing rapidly of science and technology, increasing new technique, new product are applied to the bargh of China: alleviate the labor intensity of workman, improve yield and metal yield, reduce cost, add benefit.These direct consumption reductions, the technology increased benefit, everybody is loved by all.Meanwhile, the safety in production of bargh, it is also raised to unprecedented height and draws attention.Along with the country's further increasing to mine safety renovation dynamics, employ new technology, new method, strengthen safety monitoring, stop accident potential, just becoming the emphasis that bargh currently pays close attention to.
Slope displacement, settlement of foundation are the important steps of bargh's technical process and safety in production.First, most of mineral reserve are all distributed in mountain range, owing to the discharge of exploitation all the year round or slag is piled up, destruction of surface is serious, and the ability resisting natural disaster constantly declines, and potential safety hazard is increasing, especially in rainy season, flood, landslide, dam break hidden danger moment threaten the safety of tailing dam.Once landslide occur or forming the generation of the accident such as mud-rock flow, dam break rainy season, the people's livelihood in downstream will be brought serious disaster, cause the heavy losses of country's lives and properties.
Such as, in August, 2006, after heavy rain, there is a chain of dam break in the tailing dam in You Liangzuo ore dressing plant, Loufan County, Shanxi, the mud-rock flow poured down washes away, floods the warehouse of the part house owed by a citizen at rice, downstream more than 200, highway, farmland and 1 sharp mountain iron mine, two oil tanks catch fire, article in the tile fragment in silt stone and house and villager family have been brought to the place of tens kilometers farthest unexpectedly, cause that 5 people are dead, 16 people are injured, 2 people are missing, and disaster-stricken scene is so tragic that one cannot bear to look at it.
Similar case also has a lot.E Kouyijia bargh in 2007, the direct economic loss that dam break causes more than up to 4,000 ten thousand yuan；One, Haicheng Tailings Dam dam-break accident, causes 8 people dead according to report, and many people are missing.On JIUYUE 8th, 2008, Xiangfen, Shanxi one Tailings Dam generation dam break, dead missing 271 people.
In the past, owing to being subject to the restriction of technical conditions, the safety monitoring of the most side slope of China is all adopt special messenger's post, artificial observation, the operating type that manually reports.This mode is no doubt important, but it can only reflect the apparent condition of side slope, it is impossible to carry out lasting microcosmic detection to inside crucial side slope；The real-time of manual type is poor, and means are comparatively single, it is impossible in real time, intuitively, accurately reflect on-the-spot fast changing situation；Additionally, artificial observation is poor with the storage of record and readability, it is impossible to the graphically mode time dependent trend of dynamically demonstrating data of change, parsingization, make prediction in time and forecast.
Summary of the invention
The present invention provides a kind of optical fiber slope dam displacement sedimentation monitoring system, in order to overcome at least one problem existed in prior art.
For reaching above-mentioned purpose, the invention provides a kind of optical fiber slope dam displacement sedimentation monitoring system, including: optical fiber osmotic pressure sensor, optical fibre displacement sensor, fiber bragg grating settlement sensor, optical fiber level sensor and (FBG) demodulator, wherein:
Optical fiber osmotic pressure sensor, optical fibre displacement sensor, fiber bragg grating settlement sensor are connected with (FBG) demodulator respectively through optical fiber with optical fiber level sensor, the light sent by laser instrument in (FBG) demodulator, each sensor is arrived through optical cable, it is reflected back the optical signal with quantity of information to be measured again by each sensor, demodulate after arriving (FBG) demodulator and treat that measurement information shows on fluorescent screen, wherein, optical fiber osmotic pressure sensor is used for detecting saturation information, and optical fibre displacement sensor is used for detecting slope Dam body displacement information.Fiber bragg grating settlement sensor is used for detecting slope dam body settlement information, and optical fiber level sensor is used for detecting slope dam body water level information.
Further, when monitoring saturation, setting the Monitoring Profiles of quantity in the choosing of maximum height of dam section, the spacing of two adjacent Monitoring Profiles is setpoint distance, and each Monitoring Profiles should at least provided with 4 for arranging the monitoring point of optical fiber osmotic pressure sensor；Large-scale Tailings Dam also should be provided with Monitoring Profiles at some thin monoliths.Each Monitoring Profiles should at least provided with 4 monitoring points.
Further, the described quantity that sets is as 2～4, and described setpoint distance is 30～50 meters.
Further, when monitoring the displacement of dam, slope, length according to dam at least selects 3 Monitoring Profiles, wherein at height of dam place, maximum slope, ground topographic and geologic vary more than setting threshold value place all arrange Monitoring Profiles, each Monitoring Profiles is uniformly arranged 6 monitoring points, and it is uniformly arranged 6 landslide monitoring points from top to bottom on dam slope surface according to the height on dam, spud pile is beaten in each monitoring point, the degree of depth is adjusted according to dam body, installation position displacement sensor between each spud pile, the distance between spud pile is monitored, thus monitoring the displacement of whole dam body by displacement transducer；
Wherein when installation position displacement sensor, anchored end being fixed on a certain fixture, displacement transducer is connected by steel wire rope with anchored end, first pretension steel wire rope, displacement transducer is transferred to Suitable measurement locations, is then fixed；It is a fiber grating deformable body inside displacement transducer, when displacement transducer external world rope capacity changes, deformable body deformation in displacement transducer can be caused, and then cause optic fiber grating wavelength to change.
Further, fiber bragg grating settlement sensor includes anchor head, sensor and connecting rod, and anchor head is for following the vertical displacement parameter of road bed；Sensor is for the change in location of anchor head being detected, first the anchored end of anchor head is fixed on settlement plate when application, sensor is connected by connecting rod with anchored end, sensor is transferred to Suitable measurement locations, then it is fixed, the operation principle of this fiber bragg grating settlement sensor is to utilize the position base relative variation relative to road bed to measure the vertical displacement of the soil body, when namely there is sedimentation or protuberance when the soil body, it is embedded between settlement plate meeting and the anchor head of road bed on Tu Dijiyan or basis and produces relative variable quantity, by connecting rod variable parameter transmitted and become optical signalling into the sensing element in settlement sensor by the conversion of grating and passed back (FBG) demodulator by optical cable.
The present invention passes through comprehensive sensor technology, signal transmission technology, and network technology and software engineering, realize the on-line checking of side slope, signal synchronous transfer, and side slope load Analysis, trend prediction, the safety monitoring of side slope, it it is exactly the omnibearing angel combined from macroscopic view, microcosmic, monitor the various key technical index affecting side slope safety, record state its past, present, analyze the tendency in its future, make us to the safety inspection and evaluation of side slope more comprehensively, more directly, more carry weight, thus the generation of the accident that averts a calamity as far as possible.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is certain tailing dam pore water pressure scattergram；
Fig. 2 is the long detection method principle schematic in safe beach；
Fig. 3 is the typical variant vectogram on dam, side slope ore deposit；
Fig. 4 is dam, optical fiber slope monitoring system schematic；
Fig. 5 is dam, slope saturation monitoring schematic diagram；
Fig. 6 is dam, slope displacement monitoring schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into the scope of protection of the invention.
For there being the dam, slope of water, such as Tailings Dam (or dam), having a large amount of Tailings Slurry precipitation water in Tailings Dam, meanwhile, during from tailing dam dam crest tailing disposal, in the process that ore pulp trickles in storehouse, ore pulp water constantly permeates downwards；Additionally, a large amount of rainfall in flood season.These factors form a huge seepage field in tailings dam.Furthermore, mine tailing lithosomic body belongs to non-average body, and ore discharge position needs again frequent exchange；Dam body is constantly increasing again；Moreover in the whole viability of Tailings Dam, mineral resources and beneficiation flowsheet likely change, and mine tailing performance naturally also can change.Here it is the reason of Seepage Field of Tailings Dam complex.The piezometric line of saturation and seepage flow drift net, is the life line of tailing dam safety, and the height of saturation is directly connected to dam stabilization and safety profile, therefore, is one of the important content of Safety of Tailings Dam monitoring for the monitoring of saturation position.
Fig. 1 is certain tailing dam pore water pressure scattergram；(water pressure unit: kPa) is as it is shown in figure 1, the line that figure Pore Pressure is 0 is the saturation of tailing dam.
Have a large amount of Tailings Slurry precipitation water in Tailings Dam, according to the height of its water level, the purpose of reservoir level monitoring can determine whether whether this storehouse flood control capacity meets safety requirements.Specifically: the tune flood that perfect design can provide flood control required in design text is deep, and require when design flood level (i.e. extreme high water), the minimum safe superelevation of design code and the requirement of minimum safe dry beach length will be met simultaneously.If the minimum safe superelevation being not specified by design text and minimum safe dry beach length, the minimum safe superelevation specified in available design specification and minimum safe dry beach length are as foundation.The result of reservoir level monitoring is as deep in the tune flood that can not meet design, minimum safe superelevation and minimum safe dry beach length, and production manager will reduce reservoir level by every means, until meeting design requirement.Control the extremely crucial measure that reservoir level is to ensure that Safety of Tailings Dam is passed the flood period thus.
Fig. 2 is the long detection method principle schematic in safe beach；As in figure 2 it is shown, set present situation reservoir level as Hs, first on deposition beach, measure dry beach [Lg] with tape measure, and plug mark post a, measure a point ground elevation Ha with instrument, when working as Ht=Ha, Hs >=[Ht], namely think that safe beach length meets design requirement.Otherwise, it is unsatisfactory for.In like manner, also there is safe superelevation detection method.
Side slope dam body comes down (dam break) disaster, displacement (Dam body displacement and matrix sedimentation) is the indicator reaction directly perceived of Law of Disastor Evolution process, therefore for the grasp of slope, body downstream, slope deformation, dam deformation rate and development speed can be found in time, safety regulator and enterprise is conducive to carry out the Emergency decision of science, and take Emergency Countermeasures measure in time, thus avoid the harm occurring or reducing disaster to cause of disaster.Fig. 3 is the typical variant vectogram on dam, side slope ore deposit, and slope, dam body downstream occurs downwards and is partial to the deformation in downstream as we know from the figure.
In sum, side slope safety of dam body monitoring system monitoring leading indicator includes: saturation, reservoir level, the displacement of dam, slope and sedimentation.
Design considerations is as follows:
1, law, regulation and pertinent regulations
(1) " People's Republic of China's safe production act " (2002.11.01)；
(2) " People's Republic of China's law of soil and water conservation " (on June 29th, 1991)；
(3) " integrated wastewater discharge standard " (GB8978-1996)；
(4) " Energy Conservation Law of the People's Republic of China " (on April 1st, 2008)；
(5) " instruction about carrying out major hazard source supervision and management " (word [2004] 56 coordinated by safety supervision pipe)；
(6) " about strengthening the notice that construction project safety devices " San Tong method " work " (promulgated by the State Council changes investment [2003] 1346)；
(7) " suggestions about production-operation unit chief leading cadre, production safety management personnel and other practitioner's work safety training assessment mode " (safety supervision pipe herringbone [2002] 123)；
(8) " special operation workers safety technical training appraisal management way " (on July 12nd, 1999, State Economic and Trade Commission director made No. 13)；
(9) " Safety of Tailings Dam supervision and management regulation " (Administration of Work Safety Supervision 6 of country command, 2006.06.01)；
(10) " Regulations concerning Safe Production Licence " (State Council Decree the 397th, 2004.01.13).
2, technical standard
(1) " Safety of Tailings Dam technical regulation " (AQ2006-2005)；
(2) " tailings facilities construction and control of acceptance " (YS5418-95)；
(3) " metallurgical mine tailings facilities rule of management " (smelting ore deposit word the 185th (90))；
(4) " Code for design of building " (GB50007-2002)；
(5) " seismic design provision in building code " (GB50011-2008)；
(6) " People's Republic of China's communication industry standard long distance communication trunk cable transmission system line acceptance of work specification "；
(7) " communication conduit construction reference ".
Fig. 4 is dam, optical fiber slope monitoring system schematic；As it can be seen, optical fiber slope dam displacement sedimentation monitoring system, the leading indicator that being primarily directed to affects dam, slope is monitored: the optical fiber osmotic pressure sensor of saturation, slope Dam body displacement, sedimentation optical fibre displacement sensor, and optical fiber level sensor etc..Whole monitoring system is formed by being positioned at dam, the intelligent slope (FBG) demodulator of Control Room, optical cable and all kinds of Fibre Optical Sensor, operation principle is the light sent by laser instrument in (FBG) demodulator, each sensor is arrived through optical cable, it is reflected back the optical signal with quantity of information to be measured again by sensor, finally arrive in (FBG) demodulator, intelligence software demodulate and treat that measurement information shows on fluorescent screen.
Saturation is monitored:
It is typically chosen on dam maximum section or once having an accident the section that downstream is caused significant damage is Monitoring Profiles.Each Monitoring Profiles at least provided with 5 monitoring points, and should should select monitoring point according to the pore water pressure variable gradient at slope place, dam body downstream in design data flexibly.Dam slope saturation monitoring instrument divides two classes.One class buries pressure-measuring pipe underground, and manual site surveys；Another kind of is bury special sensor underground, semi-automatically, or automatically observes.
The selection of saturation monitoring instrument burial place, should bury underground according to the dam seepage line position that the design condition of regulation in " dam, slope technical regulation " (AQ2006-2005) is obtained.When making the dam body stability against sliding and analyzing, design specification regulation saturation must run two kinds of operating modes by properly functioning and flood and provide respectively.Saturation position given during design should be the most important foundation of the monitoring instrument depth of burying.
Fig. 5 is dam, slope saturation monitoring schematic diagram；The piezometric line of so-called saturation and seepage flow drift net.In plane Seepage problems, a streamline of saturation and the superiors.Therefore saturation monitoring is typically in maximum height of dam section and selects 2～4 Monitoring Profiles, and spacing is 30～50 meters.Large-scale Tailings Dam also should be provided with Monitoring Profiles at some thin monoliths.Each Monitoring Profiles should at least provided with 4 monitoring points.Dam, tail storehouse section is arranged each measurement point multiple measurement point first punch, imbedded in hole by pressure-measuring pipe, then be installed in pressure tap by Fiber bragg grating osmometer.By measuring pressure measurement inner pipe water pressure, calculate water level H1 in pressure-measuring pipe, the length H according to embedment pressure-measuring pipe, finally calculate this measurement point saturation degree of depth.
The determination of the monitoring instrument depth of burying: saturation position given when the monitoring instrument depth of burying is according to design is determined, and general load cell should be arranged on below saturation.
The osmometer that we develop: be mainly used in measuring fluid pressure, for instance level of ground water, dam body, the soil body pore water pressure etc..May also be used for being contained in hole, monitor pressure or the water level of well and pressure-measuring pipe, monitor anti-seepage effect, around the saturation of dam seepage flow, leakage states and the soil body.
Osmotic pressure sensor major parameter is as follows:
Dam, slope displacement monitoring:
Fig. 6 is dam, slope displacement monitoring schematic diagram；To dam, slope displacement monitoring, we at least select 3 Monitoring Profiles according to the length on dam.Be typically in height of dam place, maximum slope, the ground topographic and geologic place of changing greatly all should arrange Monitoring Profiles, height dam according to dam is uniformly arranged 6 landslide monitoring points from top to bottom on dam slope surface, spud pile is beaten in each monitoring point, the degree of depth is adjusted according to dam body, installation position displacement sensor between each spud pile, monitor between spud pile by displacement transducer, thus monitoring the displacement of whole dam body.
Anchored end is generally first fixed on a certain fixture by optical fibre displacement sensor when application, and displacement transducer is connected by steel wire rope with anchored end, first pretension steel wire rope, displacement transducer is transferred to Suitable measurement locations, is then fixed.Sensor internal is a fiber grating deformable body, when sensor external world rope capacity changes, can cause deformable body deformation in sensor, thus causing optic fiber grating wavelength to change.
Displacement transducer major parameter:
Dam, slope settlement monitoring:
Fiber bragg grating settlement sensor is a kind of displacement transducer, is mainly made up of 3 parts.
Anchor head part is used for following the vertical displacement parameter of road bed；
Sensor section can detect the change in location of anchor head；
Settlement plate is used for being connected with relative datum and roadbed substrate with transmission lever part.
Anchored end is generally first fixed on a certain fixture by fiber grating sedimentometer, and sensor is connected by connecting rod with anchored end, and displacement transducer is transferred to Suitable measurement locations, is then fixed.The operation principle of this settlement sensor is to utilize the position base relative variation relative to road bed to measure the vertical displacement of the soil body, is the relative shift of monitoring.When namely there is sedimentation or protuberance when the soil body, it is embedded between settlement plate meeting and the anchor head of road bed on Tu Dijiyan or basis and produces relative variable quantity, by connecting rod variable parameter transmitted and become optical signalling into the sensing element in settlement sensor by the conversion of grating and passed back (FBG) demodulator by optical cable.
Fiber bragg grating settlement sensor technical specification is as follows with specification:
Sensor adopts the pre-buried mode of punching or utilizes the structure of mechanical detection point can measure the vertical displacement situation of roadbed arbitrfary point.
The advantage of said system is as follows:
Real time on-line monitoring, work efficiency is high；
Not charged, by the electromagnetic interference such as thunderbolt；
Certainty of measurement is high, long service life；
Intelligence degree, it may be achieved dangerous situation three grades warning；
The inquiry of historical data, can carry out anticipation to dam stabilization trend, prevent trouble before it happens.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, module or flow process in accompanying drawing are not necessarily implemented necessary to the present invention.
One of ordinary skill in the art will appreciate that: the module in device in embodiment can describe in the device being distributed in embodiment according to embodiment, it is also possible to carries out respective change and is disposed other than in one or more devices of the present embodiment.The module of above-described embodiment can merge into a module, it is also possible to is further split into multiple submodule.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in previous embodiment still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.
Claims (5)
1. an optical fiber slope dam displacement sedimentation monitoring system, it is characterised in that including: optical fiber osmotic pressure sensor, optical fibre displacement sensor, fiber bragg grating settlement sensor, optical fiber level sensor and (FBG) demodulator, wherein:
Optical fiber osmotic pressure sensor, optical fibre displacement sensor, fiber bragg grating settlement sensor are connected with (FBG) demodulator respectively through optical fiber with optical fiber level sensor, the light sent by laser instrument in (FBG) demodulator, each sensor is arrived through optical cable, it is reflected back the optical signal with quantity of information to be measured again by each sensor, demodulate after arriving (FBG) demodulator and treat that measurement information shows on fluorescent screen, wherein, optical fiber osmotic pressure sensor is used for detecting saturation information, and optical fibre displacement sensor is used for detecting slope Dam body displacement information.Fiber bragg grating settlement sensor is used for detecting slope dam body settlement information, and optical fiber level sensor is used for detecting slope dam body water level information.
2. dam displacement sedimentation monitoring system in optical fiber slope according to claim 1, it is characterized in that, when monitoring saturation, the Monitoring Profiles of quantity is set in the choosing of maximum height of dam section, the spacing of two adjacent Monitoring Profiles is setpoint distance, and each Monitoring Profiles should at least provided with 4 for arranging the monitoring point of optical fiber osmotic pressure sensor；Large-scale Tailings Dam also should be provided with Monitoring Profiles at some thin monoliths, and each Monitoring Profiles is at least provided with 4 monitoring points.
3. dam displacement sedimentation monitoring system in optical fiber slope according to claim 2, it is characterised in that the described quantity that sets is as 2～4, and described setpoint distance is 30～50 meters.
4. dam displacement sedimentation monitoring system in optical fiber slope according to claim 1, it is characterized in that, when monitoring the displacement of dam, slope, length according to dam at least selects 3 Monitoring Profiles, wherein at height of dam place, maximum slope, ground topographic and geologic varies more than setting threshold value place and all arranges Monitoring Profiles, each Monitoring Profiles is uniformly arranged 6 monitoring points, and it is uniformly arranged 6 landslide monitoring points from top to bottom on dam slope surface according to the height on dam, spud pile is beaten in each monitoring point, the degree of depth is adjusted according to dam body, installation position displacement sensor between each spud pile, the distance between spud pile is monitored by displacement transducer, thus monitoring the displacement of whole dam body；
Wherein when installation position displacement sensor, anchored end being fixed on a certain fixture, displacement transducer is connected by steel wire rope with anchored end, first pretension steel wire rope, displacement transducer is transferred to Suitable measurement locations, is then fixed；It is a fiber grating deformable body inside displacement transducer, when displacement transducer external world rope capacity changes, deformable body deformation in displacement transducer can be caused, and then cause optic fiber grating wavelength to change.
5. dam displacement sedimentation monitoring system in optical fiber slope according to claim 1, it is characterised in that fiber bragg grating settlement sensor includes anchor head, sensor and connecting rod, anchor head is for following the vertical displacement parameter of road bed；Sensor is for the change in location of anchor head being detected, first the anchored end of anchor head is fixed on settlement plate when application, sensor is connected by connecting rod with anchored end, sensor is transferred to Suitable measurement locations, then it is fixed, the operation principle of this fiber bragg grating settlement sensor is to utilize the position base relative variation relative to road bed to measure the vertical displacement of the soil body, when namely there is sedimentation or protuberance when the soil body, it is embedded between settlement plate meeting and the anchor head of road bed on Tu Dijiyan or basis and produces relative variable quantity, by connecting rod variable parameter transmitted and become optical signalling into the sensing element in settlement sensor by the conversion of grating and passed back (FBG) demodulator by optical cable.
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| CN106354066A (en) * | 2016-11-02 | 2017-01-25 | 山东金米尔仪器科技有限公司 | Centralized controller applied in monitoring system of reservoir dam body |
| CN106354066B (en) * | 2016-11-02 | 2018-10-12 | 济南大学 | A kind of Centralized Controller applied to reservoir dam monitoring system |
| CN107631752A (en) * | 2017-09-14 | 2018-01-26 | 中冶沈勘工程技术有限公司 | A kind of apparatus and method of middle wire type Tailings Dam monitoring |
| CN109931981A (en) * | 2019-03-15 | 2019-06-25 | 山东黄河河务局工程建设中心 | A kind of fiber-optic grating sensor distribution method for Yellow River lock |
| CN110617798A (en) * | 2019-10-16 | 2019-12-27 | 辽宁大学 | Monitoring tube structure for tailing dam infiltration line and distribution thereof |
| CN110595378A (en) * | 2019-10-17 | 2019-12-20 | 中煤科工集团重庆研究院有限公司 | Real-time ground surface or slope deformation monitoring device and method based on laser ranging principle |
| CN111351899A (en) * | 2020-03-31 | 2020-06-30 | 山东大学 | Monitoring system and method for offshore submarine landslide physical model test |
| CN111537025A (en) * | 2020-05-21 | 2020-08-14 | 水利部交通运输部国家能源局南京水利科学研究院 | Water-soil interface rationalization monitoring devices and reservoir area hydro-fluctuation belt monitoring system based on same |
| CN111637862A (en) * | 2020-05-22 | 2020-09-08 | 宁波冶金勘察设计研究股份有限公司 | Settlement monitoring device |
| CN112227494A (en) * | 2020-10-22 | 2021-01-15 | 丹东丹银矿冶有限责任公司 | Tailing storehouse is arranged and is oozed and reduce wetting wire device |
| CN114673559A (en) * | 2022-05-27 | 2022-06-28 | 太原理工大学 | Real-time accurate monitoring method and system for mine permeable catastrophe information |
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