CN110473387A - A kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system and method - Google Patents

A kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system and method Download PDF

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Publication number
CN110473387A
CN110473387A CN201910867302.1A CN201910867302A CN110473387A CN 110473387 A CN110473387 A CN 110473387A CN 201910867302 A CN201910867302 A CN 201910867302A CN 110473387 A CN110473387 A CN 110473387A
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fiber grating
landslide
fiber
monitoring
pressure
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CN110473387B (en
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刘武
马维龙
董浩楠
孙永尧
乔春风
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Southwest Petroleum University
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Southwest Petroleum University
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    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/10Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather

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  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
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  • General Physics & Mathematics (AREA)
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Abstract

The present invention relates to a kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system and methods, integrate slip mass on-line monitoring, Analysis on monitoring data, slip mass danger interval division, on-line early warning multiple functions, build mountainous region pipeline landslide body monitoring platform, by Landslide Monitoring data signal transmission to monitoring center, monitoring center is analyzed by data, risk Metrics are established, dangerous grade classification carries out pipeline landslide geo-hazard early-warning;Optical fiber grating soil pressure box is designed, causes optic fiber grating wavelength to be displaced by the movement of internal arc lever, monitors pipeclay pressure;Fiber grating liquid level meter is designed, causes optic fiber grating wavelength to drift about by the movement of internal pressure film, monitors level of ground water;Fiber bragg grating osmometer is designed, causes optic fiber grating wavelength to be displaced by the movement of inbuilt displacement piston, monitors pore water pressure;Processor calculates pipeline strain threshold, landslide displacement threshold value, provides data supporting for dangerous grade classification, disaster alarm.

Description

A kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system and method
Technical field
The present invention relates to a kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system and methods, belong to mountainous region pipeline landslide Diaster prevention and control field.
Background technique
Landslide refers to the soil body or rock mass on slope, by shadows such as river degradation, groundwater activities, earthquake and artificial blending rocks It rings, under gravity, along certain Weak face or weak band, integrally or dispersedly the phenomenon that inclined slope aspect lower slider.
Buried gathering line has maximum probability to deform, is bent even fracture, cause route once pushing by landslide Stoppage in transit and other major accidents, take reliable landslide monitoring method to monitor landslide, obtain the basic condition on landslide, make It is forecast with effective slide prediction method, predicts the development on landslide in advance, be preventive from possible trouble, thus to the full extent Reduce economic loss and dead and wounded number.
Sensor made of Fibre Optical Sensor principle is in corrosion-resistant, measurement accuracy, electromagnetism interference, measurement object, transmitting pin Band etc. all has significant advantage compared with sensor/sensor, is ground as a kind of novel landslide monitoring means Study carefully, make full use of its higher measurement accuracy, extensive measurement range and resist electromagnetic interference, automatic strong real-time, is suitble to use In the real-time monitoring of high-speed, high precision the features such as.
Summary of the invention
It is an object of the invention to propose a kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system and method, to landslide It is monitored early warning, reduces harm of the landslide to mountainous region pipeline.
Present invention mainly solves following problems:
(1) build mountainous region pipeline landslide body monitoring platform, real time on-line monitoring landslide displacement, pipeline strain, pipeclay pressure, The parameters such as level of ground water, pore water pressure;
(2) optical fiber grating soil pressure box is designed, landslide soil pressure causes pressure cell arc lever mobile, so that the pressure of connection Power film generates deformation, and then optic fiber grating wavelength is caused to shift, monitoring landslide soil pressure;
(3) fiber grating liquid level meter is designed, rainfall enters water pressure chamber, causes gas-water pressure film and grease pressure membrane shape Become, optic fiber grating wavelength is caused to shift, monitors Landslide Groundwater position;
(4) fiber bragg grating osmometer is designed, underground water, which enters permeable cylinder body, causes shift piston mobile, and connecting rod is driven to move It is dynamic that optic fiber grating wavelength is caused to shift, monitor pore water pressure;
(5) pipeline strain threshold, landslide displacement threshold value are calculated, development of landslide early warning section and pipeline stress precautionary areas are divided Between, and pipeline landslide disaster alarm matrix is established, data foundation is provided for landslide disaster early warning.
To achieve the goals above, technical scheme is as follows.
A kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system, including the first fiber bragg grating osmometer 11, the second light Fine grating osmometer 12, third fiber bragg grating osmometer 13, the first automatic rain meter 21, the second automatic rain meter 22, pipeline 3, Fiber grating tube body strain transducer 41, fiber grating earth pressure sensor 42, fiber grating concrete ground beam 5, the first optical fiber Raster liquid level meter 61, the second fiber grating liquid level meter 62, third fiber grating liquid level meter 63, the 4th fiber grating liquid level meter 64, First fiber grating inclinometer pipe 71, the second fiber grating inclinometer pipe 72, third fiber grating inclinometer pipe 73, the 4th fiber grating are surveyed Inclined tube 74, the 5th fiber grating inclinometer pipe 75, solar battery 8, fiber Bragg grating (FBG) demodulator 9, computer 101, GPRS transmission mould It is block 102, base station 103, GPRS receiving module 104, monitoring center 105, network 106, pc client 107, APP client 108, short Believe client 109, processor 110, database 111, slip mass 112.
The fiber Bragg grating (FBG) demodulator 9 connects the first fiber bragg grating osmometer 11, the second fiber grating osmotic pressure by optical cable Count 12, third fiber bragg grating osmometer 13, fiber grating tube body strain transducer 41, fiber grating earth pressure sensor 42, light Fine grating concrete ground beam 5, the first fiber grating liquid level meter 61, the second fiber grating liquid level meter 62, third fiber grating liquid level Count the 63, the 4th fiber grating liquid level meter 64, the first fiber grating inclinometer pipe 71, the second fiber grating inclinometer pipe 72, third optical fiber Grating inclinometer pipe 73, the 4th fiber grating inclinometer pipe 74, the 5th fiber grating inclinometer pipe 75, the solar battery 8, optical fiber light Grid (FBG) demodulator 9, computer 101, GPRS transmission module 102 are sequentially connected, the GPRS receiving module 104 and monitoring center 105 Connection, the monitoring center 105 pass through network 106 and pc client 107, APP client 108, short message client 109, processing Device 110 connects, and the processor 110 is connect with database 111.
Further, first fiber bragg grating osmometer 11 include shell 301, permeable stone 302, permeable seat 303, thoroughly Water vat body 304, shift piston 305, reset spring 306, connecting rod 307, piston chamber 308, hydraulic pressure fiber grating 309, pressure Film 310, hydraulic pressure optical fiber 311, air hose 312.
The hydraulic pressure fiber grating 309 is connect with hydraulic pressure optical fiber 311, and the hydraulic pressure optical fiber 311 connects with pressure film 310 It connects, the hydraulic pressure optical fiber 311 is contacted by air hose 312 with the external world, and the shift piston 305 passes through reset spring 306, connection Bar 307 is connect with pressure film 310.
Further, the fiber grating earth pressure sensor 42 includes shell 421, connecting rod 422, spring 423, arc Lever 424, film 425, pressure fiber grating 426, pressure optical fiber 427, communicating pipe 428.
The shell 421 is connect by connecting rod 422, spring 423 with arc lever 424, the arc lever 424 and film 425 connections, the pressure fiber grating 426 are connect with pressure optical fiber 427, and the pressure optical fiber 427 is connect with film 425, are led to It crosses and is contacted with the external world communicating pipe 428.
Further, the first fiber grating liquid level meter 61 includes outer cylinder 601, water inlet 602, air communication pipe 603, air pressure lumen 604, gas-water pressure film 605, water level optical fiber 606, water level fiber grating 607, water pressure chamber 608, water oil Pressure membrane 609, oil pressure chamber 610, oil nozzle 611.
The gas-water pressure film 605 is connect with outer cylinder 601, and the water oil pressure film 609 is connect with outer cylinder 601, the water Position optical fiber 606 is connect with water level fiber grating 607, and the water level optical fiber 606 connects with gas-water pressure film 605, water oil pressure film 609 It connects, the water level optical fiber 606 is contacted by air communication pipe 603 with the external world.
Further, the first automatic rain meter 21 is arranged in landslide bottom, in landslide the second automatic rain of top layout meter 22,22 real time on-line monitoring rainfall of the first automatic rain meter 21 and the second automatic rain meter is sent by wireless network To monitoring center 105.
The first automatic rain meter 21 includes wireless transceiver 211, solar panel 212, antenna 213, rainfall biography Sensor 214, the wireless transceiver 211, solar panel 212, antenna 213, precipitation rain fall sensor 214 are sequentially connected.
Further, in landslide the 4th fiber grating inclinometer pipe 74 of top layout and the 5th fiber grating inclinometer pipe 75, In The first fiber grating inclinometer pipe 71, the second fiber grating inclinometer pipe 72, third fiber grating inclinometer pipe 73, institute are arranged in landslide middle part State the first fiber grating inclinometer pipe 71, the second fiber grating inclinometer pipe 72,73 real time on-line monitoring of third fiber grating inclinometer pipe Slip mass deep displacement is sent to monitoring center 105 by GPRS transmission module 102, base station 103, GPRS receiving module 104.
Further, in landslide top layout third fiber bragg grating osmometer 13, the second optical fiber light is arranged in the middle part of landslide Grid osmometer 12 arranges the first fiber bragg grating osmometer 11, first fiber bragg grating osmometer 11, the second light in landslide bottom Fine grating osmometer 12,13 real time on-line monitoring slip mass pore water pressure of third fiber bragg grating osmometer, pass through GPRS transmission Module 102, base station 103, GPRS receiving module 104 are sent to monitoring center 105.
Further, in landslide top layout third fiber grating liquid level meter 63, the 4th fiber grating liquid level meter 64, in cunning Arrangement the first fiber grating liquid level meter 61, the second fiber grating liquid level meter 62 in the middle part of slope, the first fiber grating liquid level meter 61, Second fiber grating liquid level meter 62, third fiber grating liquid level meter 63,64 real time on-line monitoring of the 4th fiber grating liquid level meter are sliding Slopes level of ground water is sent to monitoring center 105 by GPRS transmission module 102, base station 103, GPRS receiving module 104.
A kind of mountainous region pipeline landslide Geological Hazards Monitoring method for early warning, specifically includes following steps;
A, fiber Bragg grating (FBG) demodulator 9 acquires fiber grating sensor wavelength shifted signal, and computer 101 converts optical signal For monitoring data, monitoring data are handled and are sent to GPRS transmission module 102 for digital signal;
B, GPRS receiving module 104 receives the data-signal from GPRS transmission module 102, is sent to monitoring center 105, The monitoring data such as landslide displacement, pipeline strain, pipeclay pressure, level of ground water are sent to processor 110 by monitoring center 105;
C, it calls ABAQUS to establish landslide geology-mechanics of piping model by processor 110, calculates the limit of pipeline failure Displacement, limit stress and landslide maximum displacement, are sent to database 111 and monitoring center 105 for calculated result;
D, when rainfall occurs for landslide control region, monitoring center 105 from meteorological observatory's server receive 72 hours it is later pre- Rainfall information is surveyed, at interval of for 24 hours, according to rainfall intensity and the time of the duration of rainfall, carries out executing rainfall calculating, rainfall will be executed Come down warning index as early stage, execute until rainfall uses the moment by the leading rainfall of weighting corresponding to the time Total, weight uses every slip for subtracting half by time H, executes rainfall R (t) and is defined as follows:
In formula, R (t) indicates that t moment executes rainfall, and I (τ) indicates τ moment rainfall intensity, and H indicates half-life period, takes for 24 hours, When executing rainfall more than threshold value, Landslide is significantly improved, and monitoring center 105 sends early stage landslide early warning alarm, complete At early stage landslide early warning;
E, monitoring center 105 is pre- according to the monitoring data and 110 calculating parameter of processor of slip mass 112 division development of landslide Between police region and pipeline stress early warning section, establishes pipeline landslide disaster alarm matrix;
F, monitoring center 105 carries out landslide disaster early warning according to pipeline landslide disaster alarm matrix, is connected by network 106 Pc client 107, APP client 108 and short message client 109 push pre-warning signal, complete mountainous region pipeline landslide disaster monitoring Early warning.
Invention has the beneficial effects that:
(1) collect slip mass on-line monitoring, Analysis on monitoring data, slip mass danger interval division, on-line early warning multiple functions It is integrated, realizes the Monitoring and forecasting system in real-time of landslide disaster and pipeline, provided safeguard for the even running of mountainous region pipe safety.
(2) osmometer, liquidometer, soil pressure sensor based on Fiber Bragg Grating technology are designed, fiber grating demodulation is passed through Wave length shift is converted pore water pressure, level of ground water, pipeclay pressure and other parameters by instrument, effectively increases landslide monitoring monitoring essence Degree.
(3) three-dimensional In Situ Displacement of Slope, level of ground water, monitoring pore water pressure scheme are established, in landslide Portion and middle and lower part arrangement are in the FBG monitoring sensor of ladder having levels, and can efficiently capture landslide displacement and water level letter Number, basic data is provided for early warning scheme.
(4) it is calculated by meteorological observatory's rainfall parameter and executes rainfall, carried out landslide early warning, built according to landslide monitoring data Standpipe road landslide disaster early warning matrix, determines warning grade, is conducive to monitoring center and formulates detailed early warning scheme.
Detailed description of the invention
Fig. 1 is mountainous region pipeline landslide Geological Hazards Monitoring early warning system structural schematic diagram in the embodiment of the present invention.
Fig. 2 is fiber bragg grating osmometer structural schematic diagram in the embodiment of the present invention.
Fig. 3 is optical fiber grating soil pressure box structure schematic diagram in the embodiment of the present invention.
Fig. 4 is fiber grating liquid level meter structural schematic diagram in the embodiment of the present invention.
Fig. 5 is mountainous region pipeline landslide Geological Hazards Monitoring early warning flowage structure block diagram in the embodiment of the present invention.
Specific embodiment
A specific embodiment of the invention is described with reference to the accompanying drawing, to better understand the present invention.
Embodiment
In the present embodiment, Fig. 1 is mountainous region pipeline landslide Geological Hazards Monitoring early warning system structural schematic diagram, including the first light Fine grating osmometer 11, the second fiber bragg grating osmometer 12, third fiber bragg grating osmometer 13, the first automatic rain meter 21, Two automatic rain meters 22, pipeline 3, fiber grating tube body strain transducer 41, fiber grating earth pressure sensor 42, fiber grating Concrete ground beam 5, the first fiber grating liquid level meter 61, the second fiber grating liquid level meter 62, third fiber grating liquid level meter 63, Four fiber grating liquid level meters 64, the first fiber grating inclinometer pipe 71, the second fiber grating inclinometer pipe 72, third fiber grating deviational survey Pipe 73, the 4th fiber grating inclinometer pipe 74, the 5th fiber grating inclinometer pipe 75, solar battery 8, fiber Bragg grating (FBG) demodulator 9, meter Calculation machine 101, GPRS transmission module 102, base station 103, GPRS receiving module 104, monitoring center 105, network 106, pc client 107, APP client 108, short message client 109, processor 110, database 111, slip mass 112.
The fiber Bragg grating (FBG) demodulator 9 connects the first fiber bragg grating osmometer 11, the second fiber grating osmotic pressure by optical cable Count 12, third fiber bragg grating osmometer 13, fiber grating tube body strain transducer 41, fiber grating earth pressure sensor 42, light Fine grating concrete ground beam 5, the first fiber grating liquid level meter 61, the second fiber grating liquid level meter 62, third fiber grating liquid level Count the 63, the 4th fiber grating liquid level meter 64, the first fiber grating inclinometer pipe 71, the second fiber grating inclinometer pipe 72, third optical fiber Grating inclinometer pipe 73, the 4th fiber grating inclinometer pipe 74, the 5th fiber grating inclinometer pipe 75, the solar battery 8, optical fiber light Grid (FBG) demodulator 9, computer 101, GPRS transmission module 102 are sequentially connected, the GPRS receiving module 104 and monitoring center 105 Connection, the monitoring center 105 pass through network 106 and pc client 107, APP client 108, short message client 109, processing Device 110 connects, and the processor 110 is connect with database 111.
The first automatic rain meter 21 is arranged in landslide bottom, in landslide the second automatic rain of top layout meter 22, described the One automatic rain meter 21 includes wireless transceiver 211, solar panel 212, antenna 213, precipitation rain fall sensor 214, is successively connected It connects.Be arranged in parallel the 4th fiber grating inclinometer pipe 74, the 5th fiber grating inclinometer pipe 75 at the top of landslide, parallel in the middle part of landslide Arrange the first fiber grating inclinometer pipe 71, the second fiber grating inclinometer pipe 72, third fiber grating inclinometer pipe 73.At the top of landslide It arranges third fiber bragg grating osmometer 13, the second fiber bragg grating osmometer 12 is arranged in the middle part of landslide, the arrangement the in landslide bottom One fiber bragg grating osmometer 11, first fiber bragg grating osmometer 11, the second fiber bragg grating osmometer 12, third fiber grating Osmometer 13 is point-blank.Be arranged in parallel third fiber grating liquid level meter 63, the 4th fiber grating liquid level at the top of landslide Meter 64, the first fiber grating liquid level meter 61 that is arranged in parallel in the middle part of landslide, the second fiber grating liquid level meter 62.Above-mentioned monitoring sensing Device is sent to monitoring center 105 by GPRS transmission module 102, base station 103, GPRS receiving module 104.
Fig. 2 is fiber bragg grating osmometer structural schematic diagram, and the first fiber bragg grating osmometer 11 includes shell 301, permeable stone 302, permeable seat 303, permeable cylinder body 304, shift piston 305, reset spring 306, connecting rod 307, piston chamber 308, hydraulic pressure Fiber grating 309, pressure film 310, hydraulic pressure optical fiber 311, air hose 312.
The segmentation of hydraulic pressure fiber grating 309 is pasted on hydraulic pressure optical fiber 311, and the hydraulic pressure optical fiber 311 is pasted onto pressure 310 top of film is simultaneously connect by air hose 312 with extraneous optical cable, and the shift piston 305 passes through reset spring 306, connection Bar 307 is connect with pressure film 310.When underground water from permeable seat 303 enter permeable cylinder body 304, cause shift piston 305 move It is dynamic, drive connecting rod 307 mobile, pressure membrane 309 generates deformation, is pasted on 309 wavelength of hydraulic pressure fiber grating of pressure film 310 It is displaced, monitors pore water pressure;
Fig. 3 is optical fiber grating soil pressure box structure schematic diagram, and fiber grating earth pressure sensor 42 includes shell 421, connects Bar 422, spring 423, arc lever 424, film 425, pressure fiber grating 426, pressure optical fiber 427, communicating pipe 428.
The shell 421 is connect by connecting rod 422, spring 423 with arc lever 424, the arc lever 424 and film 425 connections, the pressure fiber grating 426 are connect with pressure optical fiber 427, and the pressure optical fiber 427 is connect with film 425, are led to It crosses and is connect with extraneous optical cable communicating pipe 428.
Fig. 4 is fiber grating liquid level meter structural schematic diagram, and the first fiber grating liquid level meter 61 includes outer cylinder 601, water inlet 602, air communication pipe 603, air pressure lumen 604, gas-water pressure film 605, water level optical fiber 606, water level fiber grating 607, water Pressure chamber 608, water oil pressure film 609, oil pressure chamber 610, oil nozzle 611.
The gas-water pressure film 605 is connect with outer cylinder 601, and the water oil pressure film 609 is connect with outer cylinder 601, the water Position optical fiber 606 is connect with water level fiber grating 607, and the water level optical fiber 606 connects with gas-water pressure film 605, water oil pressure film 609 It connects, the water level optical fiber 606 is contacted by air communication pipe 603 with the external world, and the air pressure lumen 604 passes through air communication pipe 603 are connected to outside, consistent with external pressure in holding chamber, and the oil pressure chamber 610 is for reducing measurement error.Work as underground water Enter water pressure chamber 608 from water inlet 602, causes water oil pressure film 609 and 608 deformation of air pressure film, cause water level optical fiber 607 wavelength of grating is displaced, and monitors Landslide Groundwater position.
A kind of mountainous region pipeline landslide Geological Hazards Monitoring method for early warning specifically includes following steps;
A, fiber Bragg grating (FBG) demodulator 9 acquires fiber grating sensor wavelength shifted signal, and computer 101 converts optical signal For monitoring data, monitoring data are handled and are sent to GPRS transmission module 102 for digital signal;
B, GPRS receiving module 104 receives the data-signal from GPRS transmission module 102, is sent to monitoring center 105, The monitoring data such as landslide displacement, pipeline strain, pipeclay pressure, level of ground water are sent to processor 110 by monitoring center 105;
C, it calls ABAQUS to establish landslide geology-mechanics of piping model by processor 110, calculates the limit of pipeline failure Displacement, limit stress and landslide maximum displacement, are respectively sent to database 111 and monitoring center 105 for calculated result;
D, when rainfall occurs for landslide control region, monitoring center 105 from meteorological observatory's server receive 72 hours it is later pre- Rainfall information is surveyed, at interval of for 24 hours, according to rainfall intensity and the time of the duration of rainfall, carries out executing rainfall calculating, rainfall will be executed Come down warning index as early stage, execute until rainfall uses the moment by the leading rainfall of weighting corresponding to the time Total, weight uses every slip for subtracting half by time H, executes rainfall R (t) and is defined as follows:
In formula, R (t) indicates that t moment executes rainfall, and I (τ) indicates τ moment rainfall intensity, and H indicates half-life period, takes for 24 hours, When executing rainfall more than threshold value, Landslide is significantly improved, and monitoring center 105 sends early stage landslide early warning alarm, complete At early stage landslide early warning;
E, monitoring center 105 is pre- according to the monitoring data and 110 calculating parameter of processor of slip mass 112 division development of landslide Between police region and pipeline stress early warning section, further establishes pipeline landslide disaster alarm matrix;
F, monitoring center 105 carries out landslide disaster early warning according to pipeline landslide disaster alarm matrix, is connected by network 106 Pc client 107, APP client 108 and short message client 109 push pre-warning signal, complete mountainous region pipeline landslide disaster monitoring Early warning.
Fig. 5 is mountainous region pipeline landslide Geological Hazards Monitoring early warning flowage structure block diagram, judges whether monitoring center 105 receives It is then early warning flow startup, otherwise all clear, judges rainfall region and mountainous region conduit region to meteorological observatory's storm warnings are come from It is whether consistent, it is then 105 analysis of landslide monitoring data of monitoring center, otherwise all clear, judges landslide displacement and pipe stress Whether it is more than threshold value, is, establish risk Metrics according to monitoring data, otherwise all clear, divides landslide danger according to risk Metrics Dangerous grade, the publication landslide alarm of monitoring center 105, carries out the early warning of mountainous region pipeline landslide.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (9)

1. a kind of mountainous region pipeline landslide Geological Hazards Monitoring early warning system, it is characterised in that: including the first fiber bragg grating osmometer (11), the second fiber bragg grating osmometer (12), third fiber bragg grating osmometer (13), the first automatic rain meter (21), second from Dynamic rainfall gauge (22), pipeline (3), fiber grating tube body strain transducer (41), fiber grating earth pressure sensor (42), optical fiber Grating concrete ground beam (5), the first fiber grating liquid level meter (61), the second fiber grating liquid level meter (62), third fiber grating Liquidometer (63), the 4th fiber grating liquid level meter (64), the first fiber grating inclinometer pipe (71), the second fiber grating inclinometer pipe (72), third fiber grating inclinometer pipe (73), the 4th fiber grating inclinometer pipe (74), the 5th fiber grating inclinometer pipe (75), too Positive energy battery (8), fiber Bragg grating (FBG) demodulator (9), computer (101), GPRS transmission module (102), base station (103), GPRS connect Receive module (104), monitoring center (105), network (106), pc client (107), APP client (108), short message client (109), processor (110), database (111), slip mass (112);
The fiber Bragg grating (FBG) demodulator (9) connects the first fiber bragg grating osmometer (11), the second fiber grating osmotic pressure by optical cable Count (12), third fiber bragg grating osmometer (13), fiber grating tube body strain transducer (41), fiber grating earth pressure sensor (42), fiber grating concrete ground beam (5), the first fiber grating liquid level meter (61), the second fiber grating liquid level meter (62), third Fiber grating liquid level meter (63), the 4th fiber grating liquid level meter (64), the first fiber grating inclinometer pipe (71), the second fiber grating Inclinometer pipe (72), third fiber grating inclinometer pipe (73), the 4th fiber grating inclinometer pipe (74), the 5th fiber grating inclinometer pipe (75), the solar battery (8), fiber Bragg grating (FBG) demodulator (9), computer (101), GPRS transmission module (102) successively connect Connect, the GPRS receiving module (104) connect with monitoring center (105), the monitoring center (105) by network (106) with Pc client (107), APP client (108), short message client (109), processor (110) connection, the processor (110) It is connect with database (111).
2. pipeline landslide Geological Hazards Monitoring early warning system in mountainous region according to claim 1, it is characterised in that: described first Fiber bragg grating osmometer (11) includes shell (301), permeable stone (302), permeable seat (303), permeable cylinder body (304), displacement work Fill in (305), reset spring (306), connecting rod (307), piston chamber (308), hydraulic pressure fiber grating (309), pressure film (310), hydraulic pressure optical fiber (311), air hose (312);
The hydraulic pressure fiber grating (309) connect with hydraulic pressure optical fiber (311), and the hydraulic pressure optical fiber (311) and pressure membrane (310) are even It connects, the hydraulic pressure optical fiber (311) is contacted by air hose (312) with the external world, and the shift piston (305) passes through reset spring (306), connecting rod (307) is connect with pressure film (310).
3. pipeline landslide Geological Hazards Monitoring early warning system in mountainous region according to claim 1, it is characterised in that: the optical fiber Grating soil pressure sensor (42) includes shell (421), connecting rod (422), spring (423), arc lever (424), film (425), pressure fiber grating (426), pressure optical fiber (427), communicating pipe (428);
The shell (421) is connect by connecting rod (422), spring (423) with arc lever (424), the arc lever (424) Connect with film (425), the pressure fiber grating (426) connect with pressure optical fiber (427), the pressure optical fiber (427) with Film (425) connection, is contacted by communicating pipe (428) with the external world.
4. pipeline landslide Geological Hazards Monitoring early warning system in mountainous region according to claim 1, it is characterised in that: described first Fiber grating liquid level meter (61) include outer cylinder (601), water inlet (602), air communication pipe (603), air pressure lumen (604), Gas-water pressure film (605), water level optical fiber (606), water level fiber grating (607), water pressure chamber (608), water oil pressure film (609), oil pressure chamber (610), oil nozzle (611);
The gas-water pressure film (605) connect with outer cylinder (601), and the water oil pressure film (609) connect with outer cylinder (601), institute It states water level optical fiber (606) to connect with water level fiber grating (607), the water level optical fiber (606) and gas-water pressure film (605), water Oil pressure film (609) connection, the water level optical fiber (606) are contacted by air communication pipe (603) with the external world.
5. pipeline landslide Geological Hazards Monitoring early warning system in mountainous region according to claim 1, it is characterised in that: at landslide bottom Portion arranges the first automatic rain meter (21), on landslide the second automatic rain of top layout meter (22), the first automatic rain meter (21) and second automatic rain meter (22) real time on-line monitoring rainfall monitoring center (105), are sent to by wireless network;
The first automatic rain meter (21) includes wireless transceiver (211), solar panel (212), antenna (213), rain Quantity sensor (214), the wireless transceiver (211), solar panel (212), antenna (213), precipitation rain fall sensor (214) It is sequentially connected.
6. pipeline landslide Geological Hazards Monitoring early warning system in mountainous region according to claim 1, it is characterised in that: pushed up on landslide Portion arranges the 4th fiber grating inclinometer pipe (74) and the 5th fiber grating inclinometer pipe (75), and the first optical fiber light is arranged in the middle part of landslide Grid inclinometer pipe (71), the second fiber grating inclinometer pipe (72), third fiber grating inclinometer pipe (73), first fiber grating are surveyed Inclined tube (71), the second fiber grating inclinometer pipe (72), third fiber grating inclinometer pipe (73), the 4th fiber grating inclinometer pipe (74), the 5th fiber grating inclinometer pipe (75) real time on-line monitoring slip mass deep displacement, by GPRS transmission module (102), Base station (103), GPRS receiving module (104) are sent to monitoring center (105).
7. pipeline landslide Geological Hazards Monitoring early warning system in mountainous region according to claim 1, it is characterised in that: pushed up on landslide Portion arranges third fiber bragg grating osmometer (13), and the second fiber bragg grating osmometer (12) are arranged in the middle part of landslide, in landslide bottom Arrange the first fiber bragg grating osmometer (11), first fiber bragg grating osmometer (11), the second fiber bragg grating osmometer (12), Third fiber bragg grating osmometer (13) real time on-line monitoring slip mass pore water pressure, passes through GPRS transmission module (102), base station (103), GPRS receiving module (104) is sent to monitoring center (105).
8. pipeline landslide Geological Hazards Monitoring early warning system in mountainous region according to claim 1, it is characterised in that: pushed up on landslide Portion arranges third fiber grating liquid level meter (63), the 4th fiber grating liquid level meter (64), and the first optical fiber light is arranged in the middle part of landslide Grid liquidometer (61), the second fiber grating liquid level meter (62), the first fiber grating liquid level meter (61), the second fiber grating liquid Position meter (62), third fiber grating liquid level meter (63), the 4th fiber grating liquid level meter (64) real time on-line monitoring slip mass underground Water level is sent to monitoring center (105) by GPRS transmission module (102), base station (103), GPRS receiving module (104).
9. a kind of mountainous region pipeline landslide Geological Hazards Monitoring method for early warning, it is characterised in that: specific steps include:
A, fiber Bragg grating (FBG) demodulator (9) acquires FBG monitoring sensor wavelength shifted signal, and computer (101) is by optical signal Monitoring data are converted into, monitoring data are handled and are sent to GPRS transmission module (102) for digital signal;
B, GPRS receiving module (104) receives the data-signal for coming from GPRS transmission module (102), is sent to monitoring center (105), the monitoring data such as landslide displacement, pipeline strain, pipeclay pressure, level of ground water are sent to processing by monitoring center (105) Device (110);
C, it calls ABAQUS to establish landslide geology-mechanics of piping model by processor (110), calculates the limit position of pipeline failure Shifting, limit stress and landslide maximum displacement, are sent to database (111) and monitoring center (105) for calculated result;
D, when rainfall occurs for landslide control region, monitoring center (105) receives later prediction in 72 hours from meteorological observatory's server Rainfall information according to rainfall intensity and the time of the duration of rainfall, carries out executing rainfall calculating, will execute rainfall and make at interval of for 24 hours For the warning index that comes down in early days, the conjunction by the leading rainfall of weighting corresponding to the time until rainfall uses the moment is executed Meter, weight use every slip for subtracting half by time H, execute rainfall R (t) and are defined as follows:
In formula, R (t) indicates that t moment executes rainfall, and I (τ) indicates τ moment rainfall intensity, and H indicates half-life period, takes for 24 hours, executes When rainfall is more than threshold value, Landslide is significantly improved, and monitoring center (105) sends early stage landslide early warning alarm, is completed Early stage landslide early warning;
E, monitoring center (105) divides development of landslide according to the monitoring data and processor (110) calculating parameter of slip mass (112) Early warning section and pipeline stress early warning section, establish pipeline landslide disaster alarm matrix;
F, monitoring center (105) carries out landslide disaster early warning according to pipeline landslide disaster alarm matrix, is connected by network (106) Pc client (107), APP client (108) and short message client (109) push pre-warning signal, complete mountainous region pipeline landslide calamity Evil monitoring and warning.
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