CN106443799A - Geological radar monitoring apparatus and monitoring method for polluted soil of underground pipeline and pipeline circumference leakage - Google Patents

Geological radar monitoring apparatus and monitoring method for polluted soil of underground pipeline and pipeline circumference leakage Download PDF

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Publication number
CN106443799A
CN106443799A CN201610837978.2A CN201610837978A CN106443799A CN 106443799 A CN106443799 A CN 106443799A CN 201610837978 A CN201610837978 A CN 201610837978A CN 106443799 A CN106443799 A CN 106443799A
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China
Prior art keywords
monitoring
pipeline
groove
soil
radar
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CN201610837978.2A
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Chinese (zh)
Inventor
高磊
宋涵韬
叶至韬
邢建鹏
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Hohai University HHU
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Hohai University HHU
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Priority to CN201610837978.2A priority Critical patent/CN106443799A/en
Publication of CN106443799A publication Critical patent/CN106443799A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves

Abstract

The invention discloses a geological radar monitoring apparatus and monitoring method for polluted soil of underground pipeline and pipeline circumference leakage. The apparatus comprises a monitoring unit and a model groove. The monitoring unit includes a pipeline size monitoring unit, a pipeline material monitoring unit, a polluted soil distribution observing unit and a monitoring and identifying unit. The model groove is provided with three regions corresponding to the pipeline size monitoring unit, the pipeline material monitoring unit, and the polluted soil distribution observing unit respectively. According to the invention, through the configuration of relevant software parameters for the apparatus, the geological radar received information is pre-processed and a model is created so as to remove the interfering factors with the soil. The method is realized in such a way that an opening is provided on a model groove wall to enable the pipeline to be fixed at a preset position. After the adding of oil stains into the pipeline, soil is placed therein. Through the use of an L type switch to control the leakage of the oil contaminates and through a transparent model groove to monitor in the radar detection, the radar detection error can be avoided so that accurate monitoring can be performed on the size of the pipeline, the material characteristics and the distribution of the polluted soil.

Description

The geological radar monitoring device and monitoring method of underground piping and pipe week leakage pollution soil
Technical field
The present invention relates to the monitoring technical field of a kind of underground utilities and its leakage, more particularly to a kind of underground piping and The geological radar monitoring device and monitoring method of all leakage pollution soil of pipe.
Background technology
Geological radar is the detection technique based on electromagnetic wave transmission, by launching high-frequency impulse electromagnetic wave (40MHz- 2GHz), and the electromagnetic wave for reflecting is received, the spectrum signature according to the reflection electromagnetic wave for receiving judges that underground medium is distributed Situation, the features such as with real-time continuous, quick, high precision.As which is detected in earth's surface, subsurface investigation target is not damaged Consumption, is applied in numerous engineering monitoring fields.
In recent years, City Buried Pipeline problem takes place frequently, and is transported including the various prospecting tools including geological radar and technology Detection for underground utilities.Geological radar is applied to underground utilities at this stage and detects that the problem for existing mainly has at this stage:1) Geological radar is difficult to control to the interaction of soil, can only often recognize the big inch line having at intense emission signal, difficult The pipeline of superposition is layered in vertical direction with identification;2) underground utilities are only capable of carrying out having or not judgement, it is impossible to provide accurate pipe The characteristic informations such as road position, size, material;3) there is no in-depth study to the partitioning rule of the Polluted Soil of pipe leakage. So these detection objects are directed to, a kind of simple structure is also lacked at present, easy to operate extraordinary monitoring device, to solve geology Radar can not detect the problem of complicated pipeline and Polluted Soil distribution very well.
Content of the invention
Goal of the invention:In order to overcome the deficiencies in the prior art, the present invention provides a kind of underground piping and lets out in pipe week The geological radar monitoring device and monitoring method of leakage Polluted Soil, can be used to detect complex pipe in scientific research and testing and engineering construction The feature of line and the distribution of Polluted Soil.
Technical scheme:For solving above-mentioned technical problem, underground piping and the ground of pipe week leakage pollution soil that the present invention is provided Matter radar monitoring device, including duct size monitoring means, pipe material monitoring means, Polluted Soil monitoring means and monitoring identification Unit, the duct size monitoring means, pipe material monitoring means, Polluted Soil distributive observation unit difference corresponding intrument model Three regions in groove from left to right, the monitoring recognition unit includes geological radar part and see-through model slot part.
Specifically, the duct size monitoring means include material of the same race, the pipeline of different chi footpaths size, and monitored area is Left field in model groove.
Specifically, the pipeline is fixed by the recess for being stuck in model groove inwall.
Specifically, the pipe material monitoring means include identical chi footpath size, the pipeline of unlike material, and monitored area is Zone line in model groove.
Specifically, the Polluted Soil monitoring means include soil, opening conduit, L-type switch, baffle plate and greasy dirt, monitoring section Domain is right side area in model groove.
Specifically, the opening conduit is to output a square orifice using cutting machine perpendicular to conduit axis direction, uses Opening and closing in L-type switch.
Specifically, the L-type switch is the rise and fall by remote pilot L-type bar, so as to control the leakage of greasy dirt.
Specifically, the baffle plate is disposed on the both sides that are open, and so that greasy dirt is stored between two pieces of baffle plates.
Specifically, the geological radar part includes radar antenna, radar host computer and computer end, the data of antenna scanning by Geological radar is received, and the data of geological radar feedback carry out pretreatment, characteristic information extraction by computer end.
Specifically, the transparent mould type groove is used for directly observing the distribution of internal pipeline feature and Polluted Soil through cell wall, Contrasted with geological radar part detection result.
Correspondingly, the present invention also provides a kind of monitoring method of above-mentioned geological radar monitoring device, comprises the following steps:
1. duct size monitoring
(1) fixed -piping, outputs recess in the inwall of transparent mould type groove left field according to duct size, by identical material Matter, three pipelines of external diameter difference and the identical numerical value of difference are slowly transferred, and are bonded in recess;
(2) banket, quality more uniform wind desiceted soil is packed in model groove, buries piping;
(3) detect, using radar antenna in model groove left field upper surface, along parallel to conduit axis direction, in pipe Directly over road, upper left side and upper right side scanning, tailing edge perpendicular to conduit axis scanning direction;
(4) recognize, to radar initial data through Fourier transformation, go direct wave, remove background, bandpass filtering, Xi Bai Your special conversion process, realizes the pretreatment to initial data, afterwards from through pretreated extracting data go out instantaneous amplitude, Instantaneous phase and instantaneous frequency information, become figure respectively in Matlab to each parameter, realize the simulation to pipeline, in conjunction with from saturating The phenomenon that observes in bright model groove, analysis obtains duct size characteristic information.
2. pipe material monitoring
(1) fixed -piping, outputs recess in the inwall of transparent mould type groove central region according to duct size, by identical chi Footpath, three pipelines of unlike material are slowly transferred, and are bonded in recess;
(2) banket, quality more uniform wind desiceted soil is packed in model groove, buries piping;
(3) detect, using radar antenna in model groove central region upper surface, along parallel to conduit axis direction, in pipe Directly over road, upper left side and upper right side scanning, tailing edge perpendicular to conduit axis scanning direction;
(4) recognize, to radar initial data through Fourier transformation, go direct wave, remove background, bandpass filtering, Xi Bai Your special conversion process, realizes the pretreatment to initial data, afterwards from through pretreated extracting data go out instantaneous amplitude, Instantaneous phase and instantaneous frequency information, become figure respectively in Matlab to each parameter, realize the simulation to pipeline, in conjunction with from saturating The phenomenon that observes in bright model groove, analysis obtains pipe material characteristic information.
3. Polluted Soil distribution monitoring
(1) otch, cuts out square breach in inner-walls of duct cutting machine;
(2) switch is set, L-type switch is pasted onto on the other inner-walls of duct of breach, in the tight side of filling up in one end of L-type bar After v notch v, moderate lubrication oil is placed between baffle plate;
(3) fixed -piping, outputs recess in the inwall of transparent mould type groove right side area according to duct size, by identical chi Footpath, the pipeline of unlike material is slowly transferred, and is bonded in recess;
(4) banket, quality more uniform wind desiceted soil be packed in model groove, piping is buried, remote control L-type is switched, Make to move on L-type bar, so that greasy dirt leakage;
(5) detect, using radar antenna in model groove right side area upper surface, along parallel to conduit axis direction, in pipe Directly over road, upper left side and upper right side scanning, tailing edge perpendicular to conduit axis scanning direction;
(6) recognize, to radar initial data through Fourier transformation, go direct wave, remove background, bandpass filtering, Xi Bai Your special conversion process, realizes the pretreatment to initial data, afterwards from through pretreated extracting data go out instantaneous amplitude, Instantaneous phase and instantaneous frequency information, become figure respectively to each parameter in Matlab, set up Polluted Soil dielectric constant model, knot The phenomenon that observes from transparent mould type groove is closed, analysis obtains Polluted Soil distributed intelligence.
Beneficial effect:The artificial detection of underground utilities experience have shown that, radar monitoring can be carried with reference to the theory of actual observation The accuracy of high monitoring.The monitoring device and its monitoring method of the underground piping of the present invention and pipe week leakage pollution soil, by joining Set software design patterns relevant parameter, the information received by geological radar carries out pretreatment and modeling, can exclude debris in soil Interference.During monitoring, by model cell wall upper shed, making pipeline be fixed on precalculated position, after applying oil stain in pipeline, Soil being put into into model groove, using the leakage of L-type on-off control greasy dirt, transparent mould type groove is passed through while with radar detection It is monitored, it is to avoid the error of radar detection, relatively accurately the distribution of the size, material feature and Polluted Soil of monitoring pipeline.
Except invention described above solve technical problem, constitute technical scheme technical characteristic and by these skills Outside the advantage brought by the technical characteristic of art scheme, the underground piping of the present invention and Polluted Soil monitoring device and monitoring method institute energy The advantage that the other technical characteristics for including in the other technologies problem, technical scheme of solution and these technical characteristics bring, will It is described in more detail in conjunction with accompanying drawing.
Description of the drawings
Fig. 1 is the transverse cross-sectional view of the embodiment of the present invention;
Fig. 2 is the schematic diagram of L-type switch in Fig. 1;
Fig. 3 is the flow chart for carrying out size monitoring using monitoring device;
Fig. 4 is the flow chart for carrying out material monitoring using monitoring device;
Fig. 5 is the flow chart for carrying out Polluted Soil monitoring using monitoring device
In figure:1 pipeline, 2 baffle plates, 3 L-types are switched, 4 radar antennas, 5 radar host computers, 6 computer end, 7 soil, 8 transparent moulds Type groove, 9 greasy dirts.
Specific embodiment
Embodiment:
The underground piping of the present embodiment and Polluted Soil geology radar monitoring device as shown in figure 1, including:Pipeline 1, baffle plate 2, L-type switch 3, radar antenna 4, radar host computer 5, computer end 6, soil 7, transparent mould type groove 8, greasy dirt 9.Radar host computer 5 and computer It is connected by the supporting netting twine of radar between end 6, the data that receive can geological radar import computer end and processed.
Wherein, after the schematic diagram of L-type switch is as shown in Fig. 2 cut otch with cutting machine on pipeline, will be solid for L-type switch It is scheduled on opening other, enables L-type bar that incision opening and closing are fitted in, so as to makes greasy dirt leak after pipeline decentralization.
When being monitored using the underground piping of the present embodiment and pipe week leakage pollution soil matter radar monitoring device, such as Shown in Fig. 3, Fig. 4 and Fig. 5, comprise the following steps:
(1) cutting out recess away from model groove inwall sustained height according to pipeline chi footpath, respectively external diameter is 90mm, 100mm Transfer with the PVC pipeline of 110mm, be fixed on the recess of duct size monitoring means;
(2) cutting out recess away from model groove inwall sustained height according to pipeline chi footpath, respectively by external diameter for 100mm PVC Pipeline, iron pipe conduit and concrete duct decentralization, are fixed on the recess of pipe material monitoring means;
(3) cutting out recess away from model groove inwall sustained height according to pipeline chi footpath, external diameter for 100mm PVC pipeline On set L-type switch, by pipeline decentralization decentralization, be fixed on the recess of Polluted Soil distributive observation unit;
(4) the wind desiceted soil 40kg for air-drying that moisture content is 2.03% is filled in three units of model groove, so that soil was not had Pipeline;
(5) start geological radar and computer end, software kit is opened, relevant parameter is set, with antenna in model groove upper table Face gathers duct size information, to collecting respectively along parallel from conduit axis, be scanned perpendicular to the different routes of conduit axis Data carry out pretreatment and numerical analysis, in conjunction with permeable model groove observation result, draw characteristic information and the dirt of pipeline The distribution situation of dye soil.
As above, although represented and described the present invention with reference to specific preferred embodiment, but its shall not be construed as right The restriction of the present invention itself.Under the premise of the spirit and scope of the present invention for defining without departing from claims, can to its Make a variety of changes in form and in details.

Claims (10)

1. a kind of underground piping and pipe week leakage pollution soil geological radar monitoring device, it is characterised in that:Including monitoring means With transparent mould type groove, the monitoring means include duct size monitoring means, pipe material monitoring means, Polluted Soil distributive observation Unit and monitoring recognition unit, the model groove has and duct size monitoring means, pipe material monitoring means and Polluted Soil One-to-one three monitored areas of distributive observation unit, the monitoring recognition unit includes geological radar.
2. the geological radar monitoring device of underground piping according to claim 1 and pipe week leakage pollution soil, is characterized in that: The duct size monitoring means include material of the same race, the pipeline of different chi footpaths size, and the duct size monitoring means are corresponded to Monitored area be model groove in left field.
3. the geological radar monitoring device of underground piping according to claim 1 and pipe week leakage pollution soil, is characterized in that: With the recess for connecting and fixing pipeline on the inwall of the model groove.
4. the geological radar monitoring device of underground piping according to claim 1 and pipe week leakage pollution soil, is characterized in that: The pipe material monitoring means include identical chi footpath size, the pipeline of unlike material, and the pipe material monitoring means are corresponded to Monitored area be model groove in zone line.
5. the geological radar monitoring device of underground piping according to claim 1 and pipe week leakage pollution soil, is characterized in that: The Polluted Soil monitoring means include soil, opening conduit, L-type switch, baffle plate and greasy dirt, and the Polluted Soil monitoring means are corresponded to Monitored area be model groove in right side area.
6. the geological radar monitoring device of underground piping according to claim 5 and pipe week leakage pollution soil, is characterized in that: The opening conduit is with square orifice on conduit axis direction, and the L-type switch is the L-type bar of remote pilot, uses Leakage in control greasy dirt;The baffle arrangement forms the storage sky of greasy dirt in the pipeline of opening both sides between two pieces of baffle plates Between.
7. the geological radar monitoring device of underground piping according to claim 1 and pipe week leakage pollution soil, is characterized in that: The geological radar includes radar antenna, radar host computer and computer end, and the data of antenna scanning are received by geological radar, geology thunder The data for reaching feedback carry out pretreatment, characteristic information extraction by computer end.
8. the geological radar monitoring device of underground piping according to claim 1 and pipe week leakage pollution soil, is characterized in that: The transparent mould type groove is used for directly observing the distribution of internal pipeline feature and Polluted Soil through cell wall, visits with geological radar part Survey result to be contrasted.
9. underground piping according to claim 1 and pipe week leakage pollution soil geological radar monitoring device monitoring side Method, it is characterised in that including duct size monitoring, pipe material monitoring and Polluted Soil distribution monitoring.
10. underground piping according to claim 9 and pipe week leakage pollution soil geological radar monitoring device monitoring side Method, it is characterised in that the duct size monitoring is comprised the following steps:
Step 1, duct size is monitored
Step 1, fixed -piping, in the inwall of transparent mould type groove left field, recess is outputed according to duct size, by phase same material, Three pipelines of external diameter difference and the identical numerical value of difference are slowly transferred, and are bonded in recess;
Step 2, bankets, and quality more uniform wind desiceted soil is packed in model groove, buries piping;
Step 3, detection, using radar antenna in model groove left field upper surface, along parallel to conduit axis direction, in pipeline Directly over, upper left side and upper right side scanning, tailing edge perpendicular to conduit axis scanning direction;
Step 4, identification, to radar initial data through Fourier transformation, go direct wave, remove background, bandpass filtering, Xi Baier Special conversion process, realizes the pretreatment to initial data, goes out instantaneous amplitude, wink from through pretreated extracting data afterwards Shi Xiangwei and instantaneous frequency information, become figure respectively in Matlab to each parameter, realize the simulation to pipeline, in conjunction with from transparent The phenomenon that observes in model groove, analysis obtains duct size characteristic information;
The pipe material monitoring is comprised the following steps:
Step 1, fixed -piping, in the inwall of transparent mould type groove central region, recess is outputed according to duct size, by identical chi footpath, Three pipelines of unlike material are slowly transferred, and are bonded in recess;
Step 2, bankets, and quality more uniform wind desiceted soil is packed in model groove, buries piping;
Step 3, detection, using radar antenna in model groove central region upper surface, along parallel to conduit axis direction, in pipeline Directly over, upper left side and upper right side scanning, tailing edge perpendicular to conduit axis scanning direction;
Step 4, identification, to radar initial data through Fourier transformation, go direct wave, remove background, bandpass filtering, Xi Baier Special conversion process, realizes the pretreatment to initial data, goes out instantaneous amplitude, wink from through pretreated extracting data afterwards Shi Xiangwei and instantaneous frequency information, become figure respectively in Matlab to each parameter, realize the simulation to pipeline, in conjunction with from transparent The phenomenon that observes in model groove, analysis obtains pipe material characteristic information;
The Polluted Soil distribution monitoring is comprised the following steps:
Step 1, otch, square breach are cut out in inner-walls of duct cutting machine;
Step 2, arranges switch, and L-type switch is pasted onto on the other inner-walls of duct of breach, in the tight side of filling up in one end of L-type bar After v notch v, moderate lubrication oil is placed between baffle plate;
Step 3, fixed -piping, in the inwall of transparent mould type groove right side area, recess is outputed according to duct size, by identical chi footpath, The pipeline of unlike material is slowly transferred, and is bonded in recess;
Step 4, bankets, and quality more uniform wind desiceted soil is packed in model groove, buries piping, and remote control L-type is switched, and is made Move on L-type bar, so that greasy dirt leakage;
Step 5, detection, using radar antenna in model groove right side area upper surface, along parallel to conduit axis direction, in pipeline Directly over, upper left side and upper right side scanning, tailing edge perpendicular to conduit axis scanning direction;
Step 6, identification, to radar initial data through Fourier transformation, go direct wave, remove background, bandpass filtering, Xi Baier Special conversion process, realizes the pretreatment to initial data, goes out instantaneous amplitude, wink from through pretreated extracting data afterwards Shi Xiangwei and instantaneous frequency information, become figure respectively to each parameter in Matlab, set up Polluted Soil dielectric constant model, in conjunction with The phenomenon that observes from transparent mould type groove, analysis obtains Polluted Soil distributed intelligence.
CN201610837978.2A 2016-09-21 2016-09-21 Geological radar monitoring apparatus and monitoring method for polluted soil of underground pipeline and pipeline circumference leakage Pending CN106443799A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107975678A (en) * 2017-11-27 2018-05-01 中国水利水电科学研究院 A kind of laboratory pipeline leakage detections of radar experimental rig and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107975678A (en) * 2017-11-27 2018-05-01 中国水利水电科学研究院 A kind of laboratory pipeline leakage detections of radar experimental rig and method
CN107975678B (en) * 2017-11-27 2019-04-02 中国水利水电科学研究院 A kind of laboratory pipeline leakage detections of radar experimental rig and method

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