CN101476337B - Automatic monitoring apparatus and method for layered vertical sedimentation and lateral displacement of roadbed - Google Patents

Automatic monitoring apparatus and method for layered vertical sedimentation and lateral displacement of roadbed Download PDF

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Publication number
CN101476337B
CN101476337B CN200910076714XA CN200910076714A CN101476337B CN 101476337 B CN101476337 B CN 101476337B CN 200910076714X A CN200910076714X A CN 200910076714XA CN 200910076714 A CN200910076714 A CN 200910076714A CN 101476337 B CN101476337 B CN 101476337B
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laser
measuring
sensing unit
measurement
displacement
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CN101476337A (en
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冯其波
张斌
崔建英
陈士谦
颊东耀
高瞻
邵双远
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Beijing Jiaotong University
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Beijing Jiaotong University
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Abstract

The invention discloses a road foundation layered vertical settlement and transversal displacement automatic monitoring device and a monitoring method thereof in the technical field of optical measurement. The invention adopts a technical proposal that the automatic monitoring device comprises a measuring and positioning unit, a laser displacement sensing unit, a laser angle sensing unit, a measuring signal control unit, a measuring data transmission unit, a central processing unit and a power module; and the automatic monitoring method comprises: firstly, assembling various devices; secondly, starting a pulling device, stopping the device when a positioning sensor arrives at a position of a magnetic ring, measuring displacement data and angle data, and transmitting the data to the central processing unit for storage; thirdly, restarting the pulling device, and repeatedly measuring and saving the data until a measuring tube contacts a limit switch; and processing all the data of the central processing unit, and obtaining road foundation vertical settlement and transversal displacement parameters. The automatic monitoring device and the automatic monitoring method apply laser measurement technology, improve the measurement precision and the measurement depth, and simultaneously realize remote automatic monitoring.

Description

Roadbed layered vertical sedimentation and transversal displacement automated watch-keeping facility and monitoring method thereof
Technical field
The invention belongs to field of optical measuring technologies, relate in particular to a kind of roadbed layered vertical sedimentation and transversal displacement automated watch-keeping facility and monitoring method thereof.
Background technology
High speed traveling is the important symbol of railway modernization, and the train dynamics effect of high-speed railway is much larger than common railway, this has proposed new challenge to China's traditional railway design, construction, detection etc., control to the roadbed sedimentation and deformation has had higher requirement especially, therefore just need carry out long-term monitoring automatically to the sedimentation and deformation of roadbed, to in time safeguard undesirable roadbed, and take different forms of construction work to control its sedimentation and deflection.So the method for subgrade settlement and distortion can be quick and precisely monitored in research, and the development related device, for high-speed railway subgrade laying and settlement monitoring and guarantee that the Line for Passenger Transportation safe train operation is significant.
Mainly adopt monitoring stake method, sedimentation water tumbler method, settlement plate method, magnet ring sedimentometer method, waterpower method, survey the method etc. of inclining for the detection of subgrade settlement distortion at present.In these measuring methods, some method can only realize that surface settlement detects, and can't test the sedimentation of the inner a certain position of roadbed, as monitoring stake method; Some method can only be used under certain environment, can only use under non-icing condition as waterpower method and sedimentation water tumbler method; Some method measuring accuracy is not high, as magnet ring sedimentometer measuring accuracy in the 10mm magnitude; Some method adopts artificial reading, can not realize automatic detection, and efficiency of measurement is low, error is big.In addition, these methods all can only realize the one-parameter measurement, and the manually collection of each point measurement data, can not realize remote monitoring.
Summary of the invention
The object of the present invention is to provide a kind of laser measuring technique that utilizes to realize roadbed layered vertical sedimentation and transversal displacement device for monitoring and based on the automatic monitoring method of this device automatically simultaneously, the detection method measuring accuracy that solves the subgrade settlement distortion of using at present is low, it is shallow to fathom, measurement environment is required height and can't remote monitoring and problem such as can't monitor automatically.
Technical scheme of the present invention is, a kind of roadbed layered vertical sedimentation and transversal displacement automated watch-keeping facility, comprise measurement and positioning unit, laser displacement sensing unit, laser angle sensing unit, measuring-signal control module 801, measurement data delivery unit 802, CPU (central processing unit) and power module 9, it is characterized in that
Described measurement and positioning unit is made up of deviational survey pipe 1, magnet ring 2, measuring staff 3, pulling apparatus 4, limit switch 10; Described deviational survey pipe 1 and magnet ring 2 are imbedded roadbed to be measured by bore mode in advance; There is guide groove 101 the tube wall both sides of deviational survey pipe 1; Magnet ring 2 is imbedded the observation station position of different depth under the roadbed, uses the swelled ground sealing of hole, magnet ring 2 can with the synchronous sedimentation in stratum;
Described pulling apparatus 4 is made up of motor 401, drum 402, pulley 403, cable or safety line 404;
Described measuring staff 3 by support bar 301, on organize guide wheel 302, down group guide wheel 303, iron hoop 304, alignment sensor 305 are formed; Described alignment sensor 305 is fixed on the support bar 301, can move in deviational survey pipe 1 with measuring staff 3; Described iron hoop 304 is fixing with last group of guide wheel 302; Last group of guide wheel 302 is separately fixed at support bar with following group guide wheel 303, and about in the of 301 two ends, guarantee that measuring staff 3 position in deviational survey pipe 1 is placed in the middle, and can slide along guide groove 101, and guarantee that measuring staff 3 can whole not rotate;
The iron hoop 304 that described cable or safety line 404 connect on the measuring staff 3, and through pulley 403, be wrapped on the drum 402, drum 402 is driven by motor 401; When motor 401 started, pulling apparatus 4 can drive measuring staff 3 and slide along the guide groove in the deviational survey pipe 1 101; When alignment sensor 305 arrives the position of magnet rings 2 and magnet ring 2 respond to, induced signal passes through cable transmission, and stop by measuring-signal control module control motor 401, control the laser displacement sensing unit simultaneously and the laser angle sensing unit carries out displacement measurement and measurement of angle; Limit switch 10 is installed in deviational survey pipe 1 aperture with upper/lower positions, and iron hoop 304 touches limit switch 10, and motor 401 will stop operating;
Described laser displacement sensing unit is made up of laser range sensor 5, reflecting plate 501; Reflecting plate 501 is fixed on the support bar 301, can move in deviational survey pipe 1 with measuring staff 3; Laser range sensor 5 utilizes mechanical jig 601 to be installed on the fixed support 6; Described laser range sensor 5 emitted laser bundles are transmitted into reflecting plate 501 by the light hole on the fixed support 6, by reflecting plate 501 laser beam are reflected back, and are received by laser range sensor 5 by light hole.
Described laser angle sensing unit is made up of laser feeler 7 and catoptron 703; Described catoptron 703 is fixed on the support bar 301, can move in the deviational survey pipe with measuring staff 3; Described laser feeler 7 is made up of generating laser 701 and photelectric receiver 702; Laser feeler 7 is installed on the fixed support 6; Described laser instrument 701 and photelectric receiver 702 all are fixed in the mounting box 602; Described laser instrument 701 emitted laser are transmitted into catoptron 703 by the transparent window in the mounting box 602, and the laser that is reflected back by catoptron 703 is still received by photelectric receiver 702 by transparent window;
Described measuring-signal control module 801 is connected by wired or wireless mode with measurement and positioning unit, laser displacement sensing unit and laser angle sensing unit respectively; Being used to detect magnet ring location sensitive signal, the start and stop of control motor, control laser displacement sensing unit and laser angle sensing unit measures;
Described measurement data transmission unit 802 is connected by wired or wireless mode with the laser angle sensing unit with the laser displacement sensing unit respectively, is used for that laser displacement sensing unit and laser angle sensing unit are measured the data that obtained and sends into CPU (central processing unit) by wired or wireless mode;
Described CPU (central processing unit) is made up of measurement data receiver module, calculation processing unit, software processing system, demonstration and four functional modules that are linked in sequence of memory module;
Described power module 9 is used to measurement and positioning unit, laser displacement sensing unit, laser angle sensing unit, measuring-signal control module 801 to provide working current with measurement data delivery unit 802;
Motor 401 in the described pulling apparatus 4, fixed support 6, measuring-signal control module 801 and measurement data delivery unit 802 and power module 9 all are fixedly mounted on the support 11, and support 11 is installed in above position, deviational survey pipe 1 aperture; All device seal box 12 seal protections on the ground.
Described support bar 301 is processed by stainless steel.
Described laser instrument 701 adopts semiconductor laser.
Described photelectric receiver 702 adopts PSD Position-Sensitive Detector or line array CCD.
Basset more than 0.5 meter or 0.5 meter in described deviational survey pipe 1 aperture.
A kind of roadbed layered vertical sedimentation and transversal displacement automatic monitoring method is characterized in that described method comprises the following steps:
Step 1: under roadbed, bury deviational survey pipe 1 underground by bore mode, and bury magnet ring 2 underground, use the swelled ground sealing of hole, make the synchronous sedimentation in magnet ring 2 and stratum, the magnet ring at the bottom of the most close hole is designated as first observation station in the observation station position of different depth;
Step 2: laser range sensor 5 and laser feeler 7 are installed on the fixed support 6, measuring staff 3 is sent in the deviational survey pipe 1, adjust the position separately of laser range sensor 5 and laser feeler 7, in the overall process that assurance measuring staff 3 moves in deviational survey pipe 1, laser range sensor 5 can both be radiated at respectively on reflecting plate 501 and the catoptron 703 with laser feeler 7 emitted laser light, and the light that returns is received by laser range sensor 5 and photelectric receiver 702 respectively;
Step 3: start automated watch-keeping facility, pulling apparatus 4 will drive measuring staff 3 and slowly be moved to the top by the bottom of deviational survey pipe 1;
Step 4: when alignment sensor 305 detects magnet ring 2 location sensitive signals, by 401 stalls of measuring-signal control module 801 control motors;
Step 5: measuring-signal control module 801 control laser displacement sensing units are measured, and record displacement data;
Step 6: send the displacement data that records to CPU (central processing unit) by measurement data delivery unit 802;
Step 7: measuring-signal control module 801 control laser angle sensing units are measured, and record angle-data;
Step 8: send the angle-data that records to CPU (central processing unit) by measurement data delivery unit 802;
Step 9: motor 401 is after waiting for setting-up time, and measuring-signal control module 801 will be controlled motor 401 and restart, and measuring staff 3 continues to move to the top in deviational survey pipe 1, and when arriving next magnet ring position, repeating step 4 is to step 9;
Step 10: run into the limit switch 10 at the deviational survey mouth of pipe 1 place when measuring staff 3, motor 401 stops operating, and the measurement of all measuring points is all over, and is designated as one-shot measurement; CPU (central processing unit) is handled the displacement and the angle measurement data of each observation station of being received, to obtain roadbed layered vertical sedimentation and transversal displacement parameter; Wherein, the each shift value of measuring of each observation station subtracts each other the vertical sedimentation amount that is each observation station with Displacement Measurement value last time; The transversal displacement amount of each observation station can be by L iTg θ iCalculate, wherein L iThe shift value of i the observation station that records for the laser displacement sensing unit and the shift value of first observation station poor, θ iThe angle measurement of i the observation station that records for the laser angle sensing unit and the angle measurement of first observation station poor.
Effect of the present invention is, laser measuring technique is applied in the monitoring of roadbed layered vertical sedimentation and transversal displacement, has improved the precision of measuring; Device can be set according to the needs that fathom, and has improved the degree of depth of measuring; The needs that can adapt to the different operating environment; Can realize the remote automation monitoring to roadbed layered vertical sedimentation and transversal displacement simultaneously, need not manually participate in, improve the efficient of measuring.
Description of drawings
Fig. 1 is the measurement and positioning cell schematics.
Fig. 2 is the measuring staff synoptic diagram.
Fig. 3 is the composition synoptic diagram of roadbed layered vertical sedimentation and transversal displacement while automated watch-keeping facility.
Fig. 4 is the composition synoptic diagram of CPU (central processing unit).
Fig. 5 is the process flow diagram of roadbed layered vertical sedimentation and transversal displacement automatic monitoring method.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit the scope of the invention and to use.
Fig. 1 is the measurement and positioning cell schematics.Among Fig. 1, the measurement and positioning unit is made up of deviational survey pipe 1, magnet ring 2, measuring staff 3, pulling apparatus 4, limit switch 10.Deviational survey pipe 1 and magnet ring 2 are imbedded roadbed to be measured by bore mode in advance, and magnet ring 2 will be imbedded each observation station position of different depth under the roadbed, use the swelled ground sealing of hole, magnet ring will with the synchronous sedimentation in stratum.
Pulling apparatus 4 is made up of motor 401, drum 402, pulley 403, cable or safety line 404.Cable connects the iron hoop 304 on the measuring staff 3, and through pulley 403, is wrapped on the drum 402, and drum 402 is driven by motor 401.When motor 401 started, pulling apparatus 4 can drive measuring staff 3 and slide along the guide groove in the deviational survey pipe 1 101.Limit switch 10 is installed in deviational survey pipe 1 aperture with upper/lower positions, and when iron hoop 304 touches limit switch 10, motor 401 will stop operating.
Fig. 2 is the measuring staff synoptic diagram.Among Fig. 2, measuring staff 3 by support bar 301, on organize guide wheel 302, down group guide wheel 303, iron hoop 304 and alignment sensor 305 are formed.Two groups of guide wheels 302,303 are fixing at upper/lower terminal and support bar 301 respectively, and iron hoop 304 is fixing with last group of guide wheel 302, but stube cable or safety line 404 are so that pulling measuring staff 3.Alignment sensor 305 is fixed on the support bar 301, can move with measuring staff 3.
When motor 401 started, pulling apparatus 4 can drive measuring staff 3 and slide along the guide groove in the deviational survey pipe 1 101; When alignment sensor 305 arrives the position of magnet rings 2 and magnet ring 2 respond to, induced signal passes through cable transmission, and stop by measuring-signal control module control motor 401, control the laser displacement sensing unit simultaneously and the laser angle sensing unit carries out displacement measurement and measurement of angle.If pulling apparatus 4 adopts safety line 404, then need to provide in addition cable to be sent to the measuring-signal control module in order to the signal that will transmit alignment sensor 305.
Fig. 3 is the composition synoptic diagram of roadbed layered vertical sedimentation and transversal displacement while automated watch-keeping facility.Among Fig. 3, the laser displacement sensing unit is made up of laser range sensor 5, reflecting plate 501.Reflecting plate 501 is fixed on the support bar 301, can move in the deviational survey pipe with measuring staff 3.Laser range sensor 5 utilizes mechanical jig 601 and is installed on the fixed support 6 by mode such as be threaded, and laser beam is by the emission of the light hole on the fixed support 6 and receive.
Described laser angle sensing unit is made up of laser feeler 7 and catoptron 307, and catoptron is fixed on the support bar 301, moves in the deviational survey pipe with measuring staff 3.Laser feeler 7 is made up of generating laser 701, photelectric receiver 702, and this laser feeler 7 is installed on the fixed support 6 by mode such as be threaded.Laser instrument 701, photelectric receiver 702 all are fixed in the mounting box 602, laser instrument 701 can be selected polytype laser instruments such as semiconductor laser for use, its emitted laser emits by the transparent window in the mounting box 602, the laser that is reflected back by catoptron 307 is still received by photelectric receiver 702 by transparent window, and photelectric receiver 702 can be selected PSD Position-Sensitive Detector or line array CCD.
Measuring-signal control module 801 detects magnet ring location sensitive signal, and the start and stop of control motor, control laser displacement sensing unit are measured, controlled the laser angle sensing unit and measure.Measurement data delivery unit 802 can transmit measured data with wired or wireless mode.Data by laser displacement sensing unit and the received measuring-signal of laser angle sensing unit are sent into CPU (central processing unit) by data transfer unit 802, obtain roadbed layered vertical sedimentation displacement parameter and transversal displacement parameter.
Fig. 4 is the composition synoptic diagram of CPU (central processing unit).Among Fig. 4, CPU (central processing unit) mainly is made up of measurement data receiver module, calculation processing unit, software processing system, demonstration and four functional modules of storage.These four functional modules are linked in sequence.
Interchange or DC voltage that power module 9 is used for the circuit limit is provided obtain voltage of voltage regulation by processing such as conversion, offer above-mentioned measurement and positioning unit, laser displacement sensing unit, laser angle sensing unit, measuring-signal control and measurement data delivery unit.
Motor 401 in the pulling apparatus 4, fixed support 6, measuring-signal control module 801 and measurement data delivery unit 802 and power module 9 all are fixedly mounted on the support 11, and support 11 is installed in above position, deviational survey pipe 1 aperture.Basset more than 0.5 meter in deviational survey pipe 1 aperture, all device seal box 12 seal protections on the ground.
Fig. 5 is the process flow diagram of roadbed layered vertical sedimentation and transversal displacement while automatic monitoring method.Among Fig. 5, roadbed layered vertical sedimentation and transversal displacement can be monitored simultaneously automatically.The concrete implementation step of this method is:
Step 1: magnet ring 2 is installed according to the position of the predetermined measuring point degree of depth in the outside of every section deviational survey pipe 1, and the mouth of pipe of lowermost end is done shutoff and handled, in case silt stops up.By bore mode, by after root puts into the hole, the place exerts pressure at the face of land mouth of pipe with every section deviational survey pipe, makes in the tube head insertion soil layer of bottom, hole.Use the swelled ground sealing of hole, so that the synchronous sedimentation in magnet ring 2 and stratum is designated as first observation station with the magnet ring at the bottom of the most close hole.
Step 2: the laser feeler 7 of the laser range sensor 5 of described laser displacement sensing unit and laser angle sensing unit is utilized mechanical jig 601 and be installed on the fixed support 6 by mode such as be threaded.Motor in the pulling apparatus 4 401, fixed support 6, measuring-signal control module 801 are fixedly mounted on the support 11 with measurement data delivery unit 802 and power module 9, and support 11 is installed in above position, deviational survey pipe 1 aperture.
Cable or safety line 404 1 ends and drum 402 are connected, and make it walk around pulley 403,, guarantee in the process of lifting, not damage the shank of cable and alignment sensor 305 cable or safety line 404 other ends and iron hoop 304 chuckings.Measuring staff 3 is steadily vertically sent into the deviational survey pipe, drive measuring staff 3 by pulling apparatus 4 and slide along deviational survey pipe guide groove 101.
Adjust the position of laser range sensor 5 and laser feeler 7, guarantee that emitted laser light moves to the overall process of top of inclinometer pipe from deviational survey pipe bottom at measuring staff 3 separately, can both be radiated on reflecting plate 501 and the catoptron 703, and the light that returns can be received by above-mentioned laser range sensor and laser feeler.
Step 3: during measurement, pulling apparatus 4 drives measuring staff 3 and is slowly moved to the top by deviational survey pipe bottom.
Step 4: when the alignment sensor 305 on the measuring staff 3 arrives magnet ring 2 positions, 401 stalls of measuring-signal control module 801 control motors.
Step 5: the laser range sensor 5 emission laser of measuring-signal control module 801 control laser displacement sensing units, shine reflecting plate 501 back reflections and return laser range sensor 5, finish this some position laser ranging work.
Step 6: measurement data delivery unit 802 displacement measurement is sent to that CPU (central processing unit) is preserved and etc. pending.
Step 7: the generating laser 701 emission laser of measuring-signal control module 801 control laser angle sensing units, return and receive after shining catoptron 703 by photelectric receiver 702, finish the laser angular measurement work of this point.
Step 8: measurement data delivery unit 802 angle measurement is sent to that CPU (central processing unit) is preserved and etc. pending.
Step 9: motor is being waited for the setting duration, and for example after 30 seconds, measuring-signal control module 801 will be controlled motor 401 and restart, and measuring staff 3 will continue to move at deviational survey Guan Zhongxiang top, and measuring staff is when arriving next magnet ring position, and repeating step 4 is to step 9.
Step 10: when measuring staff 3 was run into limit switch 10, motor 401 stopped operating, and measurement is all over, and is designated as one-shot measurement.
CPU (central processing unit) is handled the displacement and the angle measurement data of each observation station of being received, to obtain roadbed layered vertical sedimentation and transversal displacement parameter.The each shift value of measuring of each observation station subtracts each other the vertical sedimentation amount that is each observation station with measured value last time, according to sedimentation value and time value, also can draw settling amount curve over time.The transversal displacement amount of each observation station can be by L iTg θ iCalculate, wherein L iThe shift value of i the observation station that records for the laser displacement sensing unit and the shift value of first observation station poor, θ iThe angle measurement of i the observation station that records for the laser angle sensing unit and the angle measurement of first observation station poor, so also can obtain transversal displacement in time, the various change curves of hole depth.
Above-mentioned roadbed layered vertical sedimentation and transversal displacement automated watch-keeping facility adapt to various particular job environment, are more suitable for open-air circuit is carried out remote monitoring.When carrying out remote monitoring, can sample to the continuous coverage data of roadbed sedimentation and deformation measurement mechanism for a long time by CPU (central processing unit), obtain roadbed layered vertical sedimentation amount and transversal displacement amount simultaneously,, can also realize the robotization of monitoring if CPU (central processing unit) is programmed.
When carrying out remote monitoring, the measurement data delivery unit preferably uses communication to be connected with CPU (central processing unit).Use communication can significantly reduce the realization cost of this subgrade settlement distortion laser measurement system.
The present invention has been owing to used laser measuring technique, so measuring accuracy increases substantially, and the sensitivity that detects the roadbed vertical sedimentation detects error less than 1mm less than 0.5mm; The measuring accuracy of roadbed transversal displacement is less than 0.005mm/500mm, and resolution is less than 1 ", can realize monitoring simultaneously for a long time to subgrade deformation.
Above-mentioned roadbed layered vertical sedimentation and transversal displacement be also removable roadbed layered vertical sedimentation monitoring and the two kinds of independent device of the automatic monitoring of roadbed transversal displacement automatically of being divided into of automated watch-keeping facility simultaneously, wherein, roadbed layered vertical sedimentation automated watch-keeping facility comprises measurement and positioning unit, laser displacement sensing unit, measuring-signal control module, measurement data delivery unit, CPU (central processing unit) and power module; Roadbed transversal displacement automated watch-keeping facility comprises measurement and positioning unit, laser angle sensing unit, measuring-signal control module, measurement data delivery unit, CPU (central processing unit) and power module.These two kinds of monitoring devices can be applied to respectively in roadbed vertical sedimentation and the roadbed lateral displacement measurement independently.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims (6)

1. roadbed layered vertical sedimentation and transversal displacement automated watch-keeping facility, comprise measurement and positioning unit, laser displacement sensing unit, laser angle sensing unit, measuring-signal control module (801), measurement data delivery unit (802), CPU (central processing unit) and power module (9), it is characterized in that
Described measurement and positioning unit is made up of deviational survey pipe (1), magnet ring (2), measuring staff (3), pulling apparatus (4), limit switch (10); Described deviational survey pipe (1) and magnet ring (2) are imbedded roadbed to be measured by bore mode in advance; There is guide groove (101) the tube wall both sides of deviational survey pipe (1); Magnet ring (2) is imbedded the observation station position of different depth under the roadbed, uses the swelled ground sealing of hole, magnet ring (2) can with the synchronous sedimentation in stratum;
Described pulling apparatus (4) is made up of motor (401), drum (402), pulley (403), cable or safety line (404);
Described measuring staff (3) by support bar (301), on organize guide wheel (302), down group guide wheel (303), iron hoop (304), alignment sensor (305) are formed; Described alignment sensor (305) is fixed on the support bar (301), can move in deviational survey pipe (1) with measuring staff (3); Described iron hoop (304) is fixing with last group of guide wheel (302); Last group of guide wheel (302) and following group guide wheel (303) are separately fixed at support bar (301) two ends up and down, guarantee that measuring staff (3) position in deviational survey pipe (1) is placed in the middle, and can slide along guide groove (101), and guarantee that measuring staff (3) can whole not rotate;
Described cable or safety line (404) connect the iron hoop (304) on the measuring staff (3), and through pulley (403), are wrapped on the drum (402), and drum (402) is driven by motor (401); When motor (401) started, pulling apparatus (4) can drive measuring staff (3) and slide along the guide groove (101) in the deviational survey pipe (1); When alignment sensor (305) arrives the position of magnet ring (2) and magnet ring (2) respond to, induced signal passes through cable transmission, and stop by measuring-signal control module control motor (401), control the laser displacement sensing unit simultaneously and the laser angle sensing unit carries out displacement measurement and measurement of angle; Limit switch (10) is installed in deviational survey pipe (1) aperture with upper/lower positions, and iron hoop (304) touches limit switch (10), and motor (401) will stop operating;
Described laser displacement sensing unit is made up of laser range sensor (5), reflecting plate (501); Reflecting plate (501) is fixed on the support bar (301), can move in deviational survey pipe (1) with measuring staff (3); Laser range sensor (5) utilizes mechanical jig (601) to be installed on the fixed support (6); Described laser range sensor (5) emitted laser bundle is transmitted into reflecting plate (501) by the light hole on the fixed support 6, by reflecting plate (501) laser beam is reflected back, and is received by laser range sensor (5) by light hole;
Described laser angle sensing unit is made up of laser feeler (7) and catoptron (703); Described catoptron (703) is fixed on the support bar (301), can move in the deviational survey pipe with measuring staff (3); Described laser feeler (7) is made up of generating laser (701) and photelectric receiver (702); Laser feeler (7) is installed on the fixed support (6); Described generating laser (701) and photelectric receiver (702) all are fixed in the mounting box (602); Described generating laser (701) emitted laser is transmitted into catoptron (703) by the transparent window in the mounting box (602), and the laser that is reflected back by catoptron (703) is still received by photelectric receiver (702) by transparent window;
Described measuring-signal control module (801) is connected by wired or wireless mode with measurement and positioning unit, laser displacement sensing unit and laser angle sensing unit respectively; Being used to detect magnet ring location sensitive signal, the start and stop of control motor, control laser displacement sensing unit and laser angle sensing unit measures;
Described measurement data delivery unit (802) is connected by wired or wireless mode with the laser angle sensing unit with the laser displacement sensing unit respectively, is used for that laser displacement sensing unit and laser angle sensing unit are measured the data that obtained and sends into CPU (central processing unit) by wired or wireless mode;
Described CPU (central processing unit) is made up of measurement data receiver module, calculation processing unit, software processing system, demonstration and four functional modules that are linked in sequence of memory module;
Described power module (9) is used to measurement and positioning unit, laser displacement sensing unit, laser angle sensing unit, measuring-signal control module (801) to provide working current with measurement data delivery unit (802);
Motor (401) in the described pulling apparatus (4), fixed support (6), measuring-signal control module (801) and measurement data delivery unit (802) and power module (9) all are fixedly mounted on the support (11), and support (11) is installed in above position, deviational survey pipe (1) aperture; All device seal box (12) seal protections on the ground.
2. a kind of roadbed layered vertical sedimentation according to claim 1 and transversal displacement automated watch-keeping facility is characterized in that described support bar (301) is processed by stainless steel.
3. a kind of roadbed layered vertical sedimentation according to claim 1 and transversal displacement automated watch-keeping facility is characterized in that described generating laser (701) adopts semiconductor laser
4. a kind of roadbed layered vertical sedimentation according to claim 1 and transversal displacement automated watch-keeping facility is characterized in that described photelectric receiver (702) adopts PSD Position-Sensitive Detector or line array CCD.
5. a kind of roadbed layered vertical sedimentation according to claim 1 and transversal displacement automated watch-keeping facility is characterized in that described deviational survey pipe (1) aperture bassets more than 0.5 meter or 0.5 meter.
6. the automatic monitoring method of roadbed layered vertical sedimentation as claimed in claim 1 and transversal displacement automated watch-keeping facility is characterized in that described method comprises the following steps:
Step 1: under roadbed, bury deviational survey pipe (1) underground by bore mode, and bury magnet ring (2) underground, use the swelled ground sealing of hole, make the synchronous sedimentation of magnet ring (2) and stratum, the magnet ring at the bottom of the most close hole is designated as first observation station in the observation station position of different depth;
Step 2: laser range sensor (5) and laser feeler (7) are installed on the fixed support (6), measuring staff (3) is sent in the deviational survey pipe (1), adjust the position separately of laser range sensor (5) and laser feeler (7), in the overall process that assurance measuring staff (3) moves in deviational survey pipe (1), laser range sensor (5) can both be radiated at respectively on reflecting plate (501) and the catoptron (703) with laser feeler (7) emitted laser light, and the light that returns is received by laser range sensor (5) and photelectric receiver (702) respectively;
Step 3: start automated watch-keeping facility, pulling apparatus (4) will drive measuring staff (3) and slowly be moved to the top by the bottom of deviational survey pipe (1);
Step 4: when alignment sensor (305) detects magnet ring (2) location sensitive signal, by the stall of measuring-signal control module (801) control motor (401);
Step 5: measuring-signal control module (801) control laser displacement sensing unit is measured, and records displacement data;
Step 6: send the displacement data that records to CPU (central processing unit) by measurement data delivery unit (802);
Step 7: measuring-signal control module (801) control laser angle sensing unit is measured, and records angle-data;
Step 8: send the angle-data that records to CPU (central processing unit) by measurement data delivery unit (802);
Step 9: motor (401) is after waiting for setting-up time, measuring-signal control module (801) will be controlled motor (401) and restart, measuring staff (3) continues to move to the top in deviational survey pipe (1), and when arriving next magnet ring position, repeating step 4 is to step 9;
Step 10: run into the limit switch (10) that the deviational survey mouth of pipe (1) is located when measuring staff (3), motor (401) stops operating, and the measurement of all measuring points is all over, and is designated as one-shot measurement; CPU (central processing unit) is handled the displacement and the angle measurement data of each observation station of being received, to obtain roadbed layered vertical sedimentation and transversal displacement parameter; Wherein, the each shift value of measuring of each observation station subtracts each other the vertical sedimentation amount that is each observation station with Displacement Measurement value last time; The transversal displacement amount of each observation station can be by L iTg θ iCalculate, wherein L iThe shift value of i the observation station that records for the laser displacement sensing unit and the shift value of first observation station poor, θ iThe angle measurement of i the observation station that records for the laser angle sensing unit and the angle measurement of first observation station poor.
CN200910076714XA 2009-01-15 2009-01-15 Automatic monitoring apparatus and method for layered vertical sedimentation and lateral displacement of roadbed Expired - Fee Related CN101476337B (en)

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