CN103292783A - Roadbed settlement monitoring system - Google Patents
Roadbed settlement monitoring system Download PDFInfo
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- CN103292783A CN103292783A CN201310255903XA CN201310255903A CN103292783A CN 103292783 A CN103292783 A CN 103292783A CN 201310255903X A CN201310255903X A CN 201310255903XA CN 201310255903 A CN201310255903 A CN 201310255903A CN 103292783 A CN103292783 A CN 103292783A
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Abstract
The invention relates to a roadbed settlement monitoring system comprising an antifreezing settlement meter and an automatic data tester, wherein the antifreezing settlement meter and the automatic data tester are connected by a data transmission cable. The antifreezing settlement meter comprises a settlement plate, an inductive displacement sensor, a telescopic joint, a measuring rod, a heating tube and an anchor head, wherein the measuring rod is connected above the anchor head, the heating tube is arranged outside the measuring rod, a spiral electric heat alloy wire is axially arranged on the heating tube which is connected with an external power source, the measuring rod is connected with the electric inductance type displacement sensor through the telescopic joint, the electric inductance type displacement sensor is fixed at the lower side of the settlement plate, the output end of the electric inductance type displacement sensor is connected with the input end of the automatic data tester, the automatic data tester sends measurement data to a remote computer through long-distance transmission through a communication device and a base station, and therefore remote settlement real-time monitoring operation as well as data acquisition and analysis of a plurality of measuring point are realized.
Description
Technical field
The present invention relates to the settlement of foundation monitoring technology, especially relate to the subgrade settlement monitoring system of cold district.
Background technology
The subgrade settlement monitoring is the important content of railway and highway engineering technology, is related to normally carrying out and safeguard protection of railway operation and transport by road.At present, the general single point settlement gage that adopts of roadbed delaminating deposition monitoring is fixed on single point settlement gage in the soil body depth range to be measured, manually or automatically gathers the compression layer settling data, by data are further handled the sedimentation value that draws the degree of depth soil body to be measured.
Fig. 1 shows the single point settlement gage of prior art, constituted by settlement plate 1, inductive displacement transducer 2, telescopic joint 3, measuring staff 4, pillar 5 and anchor head 6, the top of anchor head 6 connects the measuring staff 4 that has pillar 5, measuring staff 4 connects inductive displacement transducer 2 by telescopic joint 3, and inductive displacement transducer 2 is fixed on the downside of settlement plate 1.During measurement, single point settlement gage is fixed in the roadbed soil body depth range to be measured, and anchor head 6 is arranged on the lower floor of relative fixed point, and settlement plate 1 is arranged on the soil body to be measured upper strata.The sedimentation and deformation displacement of the soil body between anchor head 6 and the settlement plate 1 is embodied by the stroke of telescopic joint 3, and is transformed into electrical measurement output by inductive displacement transducer 2.
But the single point settlement gage of prior art only is applicable to the subgrade settlement observation in general non-cold area, can not eliminate frost-heaving deformation to the influence of subgrade settlement in the frozen soil area.The roadbed frost heave is the distinctive breakoff phenomenon of frozen soil area roadbed, because subgrade settlement is accompanied by the freeze thawing of the road bed soil body, the measured value of common single point settlement gage is the difference that the sedimentation value of roadbed deducts road bed freeze thawing sedimentation value, studies subgrade settlement and just very difficult realization of frost-heaving deformation separately by the settlement gauge monitoring.
Soil frost heave is the ubiquitous geological phenomenon in northern China frozen soil area, and frost zone distributes very wide, accounts for 53.5% of national area.And in the frost zone district, press for frost-heaving deformation is carried out the deep research of system, also just need be applicable to the instrument and equipment of frozen soil area subgrade settlement observation
Summary of the invention
Single point settlement gage at prior art can not be eliminated frost-heaving deformation to the influence of subgrade settlement in the frozen soil area, the present invention releases the subgrade settlement monitoring system that use in a kind of suitable frozen soil area, its purpose is, employing has the antifreeze settlement gauge of heat-generating pipe, heat radiation by heat-generating pipe, suppress that the soil body freezes in the thermal source coverage, the actual settling amount that is not subjected to the roadbed that frost-heaving deformation influences is handled in the sedimentation of measuring the soil body in the positive temperature scope with inductive displacement transducer by data; Simultaneously, inductive displacement transducer is connected with the automatic data test instrument by data cable, the automatic data test instrument passes the data of collecting toward remote computer by communication apparatus, realizes collection automatically, dynamic monitoring and remote wireless control.
The subgrade settlement monitoring system that the present invention relates to comprises antifreeze settlement gauge and automatic data test instrument, and antifreeze settlement gauge is connected by data cable with the automatic data test instrument.Antifreeze settlement gauge comprises settlement plate, inductive displacement transducer, telescopic joint, measuring staff, heat-generating pipe and anchor head, the anchor head top connects measuring staff, measuring staff arranged outside heat-generating pipe, heat-generating pipe axially arranges the spiral lectrothermal alloy wire and is connected with external power, measuring staff connects inductive displacement transducer by telescopic joint, and inductive displacement transducer is fixed on the downside of settlement plate.The output terminal of inductive displacement transducer connects the input end of automatic data test instrument.
The automatic data test instrument is given remote computer by communication apparatus and base station with the measurement data long-distance transmissions, realizes real-time monitoring and the data collection and analysis of a plurality of measuring points.
During measurement, single point settlement gage is fixed in the roadbed soil body depth range to be measured, and anchor head is arranged on the lower floor of relative fixed point, and settlement plate is arranged on the soil body to be measured upper strata.The heat-generating pipe that is connected with external power is buried scope underground to settlement gauge and is produced heat affecting, makes the cylinder soil body temperature of radius 0.5-1m more than 0 ℃, and frost-heaving deformation does not take place the moisture soil body.Inductive displacement transducer is with the stroke of telescopic joint, and namely to be measured section soil body settling data accurately is transferred to the automatic data test instrument, handles by data, obtains getting rid of the actual sedimentation value of roadbed of frost heave influence.The information of automatic data test instrument record is given remote computer by communication apparatus and base station with the measurement data long-distance transmissions regularly by the communication network remote transmission signal, realizes long-range sedimentation monitoring and data collection and analysis in real time.
The subgrade settlement monitoring system that use in suitable frozen soil area involved in the present invention, employing has the antifreeze settlement gauge of heat-generating pipe, heat radiation by heat-generating pipe, suppressing the interior soil body of thermal source coverage freezes, the actual settling amount that is not subjected to the roadbed that frost-heaving deformation influences is handled in the sedimentation of measuring the soil body in the positive temperature scope with inductive displacement transducer by data.The automatic data test instrument passes the data of collecting toward remote computer by communication apparatus, and a set of equipment can be monitored a hundreds of measuring point simultaneously, can realize automatic collection, dynamic monitoring and remote wireless control to on-the-spot all inductive displacement transducers.
Description of drawings
Fig. 1 is the single point settlement gage structural representation of prior art;
Fig. 2 is that the roadbed monitoring system that the present invention relates to arranges synoptic diagram.
Description of symbols among the figure:
1, settlement plate 2, inductive displacement transducer
3, telescopic joint 4, measuring staff
5, pillar 6, anchor head
7, heat-generating pipe 8, the heat affecting cylinder soil body
9, data cable 10, automatic data test instrument
11, communication apparatus 12, base station
13, remote computer
Embodiment
By reference to the accompanying drawings technical scheme of the present invention is described further.Fig. 2 shows the basic structure of the subgrade settlement monitoring system that the present invention relates to, and as shown in the figure, the subgrade settlement monitoring system comprises antifreeze settlement gauge and automatic data test instrument 10, and antifreeze settlement gauge is connected by data cable 9 with automatic data test instrument 10.Antifreeze settlement gauge comprises settlement plate 1, inductive displacement transducer 2, telescopic joint 3, measuring staff 4, heat-generating pipe 7 and anchor head 6, the top of anchor head 6 connects measuring staff 4, measuring staff 4 arranged outside heat-generating pipes 7, heat-generating pipe 7 axially arranges the spiral lectrothermal alloy wire and is connected with external power, measuring staff 4 connects inductive displacement transducer 2 by telescopic joint 3, and inductive displacement transducer 2 is fixed on the downside of settlement plate 1.The output terminal of inductive displacement transducer 2 connects the input end of automatic data test instrument 10.
Automatic data test instrument 10 is given remote computer 13 by communication apparatus 11 and base station 12 with the measurement data long-distance transmissions, realizes real-time monitoring and the data collection and analysis of a plurality of measuring points.
Claims (2)
1. a subgrade settlement monitoring system is characterized in that, comprises antifreeze settlement gauge and automatic data test instrument, and antifreeze settlement gauge is connected by data cable with the automatic data test instrument; Antifreeze settlement gauge comprises settlement plate, inductive displacement transducer, telescopic joint, measuring staff, heat-generating pipe and anchor head, the anchor head top connects measuring staff, measuring staff arranged outside heat-generating pipe, heat-generating pipe axially arranges the spiral lectrothermal alloy wire and is connected with external power, measuring staff connects inductive displacement transducer by telescopic joint, and inductive displacement transducer is fixed on the downside of settlement plate.
2. subgrade settlement monitoring system according to claim 1, it is characterized in that, the output terminal of described inductive displacement transducer connects the input end of automatic data test instrument, and the automatic data test instrument is given remote computer by communication apparatus and base station with the measurement data long-distance transmissions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310255903XA CN103292783A (en) | 2013-06-25 | 2013-06-25 | Roadbed settlement monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255903XA CN103292783A (en) | 2013-06-25 | 2013-06-25 | Roadbed settlement monitoring system |
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| CN103292783A true CN103292783A (en) | 2013-09-11 |
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| CN201310255903XA Pending CN103292783A (en) | 2013-06-25 | 2013-06-25 | Roadbed settlement monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776417A (en) * | 2014-01-14 | 2014-05-07 | 中国科学院寒区旱区环境与工程研究所 | Device for measuring cryolithozone stratum deformation |
| CN105667541A (en) * | 2016-01-21 | 2016-06-15 | 中铁第四勘察设计院集团有限公司 | Monitoring device for settlement cavity value of medium-low-speed magnetic suspension low track bearing-rail beam and roadbed |
| CN105865415A (en) * | 2016-04-28 | 2016-08-17 | 中国计量大学 | Automatic soft soil foundation settlement monitoring device and method |
| CN109443310A (en) * | 2018-12-24 | 2019-03-08 | 长沙理工大学 | A kind of subgrade settlement automated watch-keeping facility and construction technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776417A (en) * | 2014-01-14 | 2014-05-07 | 中国科学院寒区旱区环境与工程研究所 | Device for measuring cryolithozone stratum deformation |
| CN105667541A (en) * | 2016-01-21 | 2016-06-15 | 中铁第四勘察设计院集团有限公司 | Monitoring device for settlement cavity value of medium-low-speed magnetic suspension low track bearing-rail beam and roadbed |
| CN105667541B (en) * | 2016-01-21 | 2018-01-26 | 中铁第四勘察设计院集团有限公司 | Medium-and low-speed maglev is low to be put circuit support rail beam and subgrade settlement and comes to nothing value monitoring device |
| CN105865415A (en) * | 2016-04-28 | 2016-08-17 | 中国计量大学 | Automatic soft soil foundation settlement monitoring device and method |
| CN105865415B (en) * | 2016-04-28 | 2018-06-08 | 中国计量大学 | A kind of soft soil foundation settlement automatic monitoring device and method |
| CN109443310A (en) * | 2018-12-24 | 2019-03-08 | 长沙理工大学 | A kind of subgrade settlement automated watch-keeping facility and construction technology |
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Application publication date: 20130911 |