CN108332712A - Differential Settlement Profiler meter and Settlement Profiler monitoring method - Google Patents
Differential Settlement Profiler meter and Settlement Profiler monitoring method Download PDFInfo
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- CN108332712A CN108332712A CN201810111180.9A CN201810111180A CN108332712A CN 108332712 A CN108332712 A CN 108332712A CN 201810111180 A CN201810111180 A CN 201810111180A CN 108332712 A CN108332712 A CN 108332712A
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- settlement profiler
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- differential settlement
- profiler
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 210000003437 trachea Anatomy 0.000 claims abstract description 4
- 238000004062 sedimentation Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/06—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels by using barometric means
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of differential Settlement Profiler meter and Settlement Profiler monitoring methods, the Settlement Profiler meter includes liquid cabin, air bin and pressure transmitter, the pressure transmitter is completely isolated by liquid cabin and air bin, the air bin trachea is communicated with air, it is communicated with air after the liquid cabin external water pipe and liquid filling body, the pressure transmitter is used for incuding the pressure difference of air bin and liquid cabin between the two.This method is the monitoring method based on above-mentioned Settlement Profiler meter.The present invention has many advantages, such as simple in structure, install convenient, test simple, high certainty of measurement and long time stability, can the permanently effective differential settlement variation to roadbed be monitored and early warning.
Description
Technical field
Present invention relates generally to engineering detectings and health monitoring application field, refer in particular to one kind and being primarily adapted for use in measurement railway
With the high-end sophisticated sensor and Settlement Profiler monitoring method of the sedimentation variation of the roadbeds such as highway or similar structures body.
Background technology
Subgrade settlement monitoring is an indispensable important ring during railway and construction of the highway and operation, monitoring data one
Aspect can monitor the stability of roadbed during fill construction, control the rate banketed, and on the other hand can reflect roadbed
Health and safety during construction quality and roadbed operation.
The measurement subgrade settlement main method applied in engineering at present has observation stake method, heavy board-descending method and horizontal deviational survey method.
It observes stake method and heavy board-descending method measures and easily interfered and destroyed by construction, the roadbed for runing the phase can not be monitored, horizontal deviational survey
The method single measurement time is long, can only measure relative settlement.
It can be seen that the above several method rests on the stage of manual measurement, there is heavy workload, can not continue for a long time
Observation, measurement data is limited, cannot accurately and effectively react sedimentation variation and rule, can not build automatic monitoring system etc. and lack
Point cannot be satisfied the intelligentize and informatization requirement of the engineering detecting and health monitoring industry of high speed development.
Invention content
The technical problem to be solved in the present invention is that：In view of the problems of the existing technology, the present invention provides a kind of knot
Structure is simple, install convenient, test are simple, high certainty of measurement and long time stability subgrade settlement monitors sensor, and with this
Based on sensor, it is further provided a set of convenient feasible subgrade settlement automatic monitoring solution, permanently effective pair
The differential settlement variation of roadbed is monitored and early warning.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of differential Settlement Profiler meter, including liquid cabin, air bin and pressure transmitter, the pressure transmitter is by liquid cabin
Completely isolated with air bin, the air bin trachea is communicated with air, after the liquid cabin external water pipe and liquid filling body with
Air communicates, and the pressure transmitter is used for incuding the pressure difference of air bin and liquid cabin between the two.
As being further improved for apparatus of the present invention：All devices are packaged in shell, form integrated device.
As being further improved for apparatus of the present invention：The shape of the shell is fairing cylinder type.
As being further improved for apparatus of the present invention：The pressure transmitter is installed on the vertical center of shell.
As being further improved for apparatus of the present invention：The differential Settlement Profiler is calculated as sides that are multiple, and using concatenation
Formula.
As being further improved for apparatus of the present invention：Waterpipe jointing, air pipe interface and cable is provided on the shell to connect
Mouthful, and waterpipe jointing, air pipe interface and cable interface are all made of symmetric design, one-in-and-one-out.
As being further improved for apparatus of the present invention：The differential Settlement Profiler meter further includes acquisition control unit, institute
Acquisition control unit is stated to be fixedly installed in air bin.
As being further improved for apparatus of the present invention：The acquisition control unit includes acquisition module, micro-control module, electricity
Source module and communication module；The power module is used for providing working power for entire acquisition control circuit and pressure transmitter；
It is sent into and adopts after the differential signal operational amplifier amplification that the differential voltage signal of the pressure transmitter output passes through acquisition module
The analog to digital conversion circuit for collecting module is converted to digital signal and is sent to the micro-control module processing；The micro-control module
Including MCU circuits and storage circuit, the height of liquid level is obtained by calculation in the MCU circuits, and the storage circuit is used for storing
Data；The communication module is used for completing the transmission of signal.
The present invention further provides a kind of Settlement Profiler monitoring methods based on above-mentioned differential Settlement Profiler meter, will be multiple
Differential Settlement Profiler flowmeter sensor connects the subgrade settlement monitoring system of one section of composition by way of concatenation；It is constructing
When pre-plugged sedimentation pipe, by sedimentation pipe reserve steel wire rope all differential Settlement Profiler meters are drawn to the position of design
It sets.
As being further improved for the method for the present invention：Motionless benchmark is built by the method that steel pipe is buried in drilling to basement rock
Point；Measured value on the basis of one differential Settlement Profiler is counted as, the height change value of each measuring point liquid level are installed in steel pipe top
Difference with the height change value of datum mark liquid level is the practical sedimentation changing value of measuring point.
Compared with the prior art, the advantages of the present invention are as follows：
1, differential Settlement Profiler meter of the invention, can be by the space displacement of measuring point using pressure transmitter as sensing element
Variation is converted to the pressure change for measuring liquid, and size sensor very little is unrelated with range size, and installation is simple and convenient, is not necessarily to
It is fixed, it is put into sedimentation pipe precalculated position, greatly reduces difficulty and the space requirement of installation, it is noiseless to constructing, it is applicable in
It is monitored in various subgrade settlements.
2, the pressure transmitter of differential Settlement Profiler meter of the invention is made using highly sensitive import diffusion silicon crystal
For pressure responsive element, acquisition control circuit uses high-performance import component, and size is small, precision is high, temperature and environment shadow
Sound is faint, is used for a long time reliable and stable.
3, the parameter that differential Settlement Profiler meter of the invention measures is the pressure of liquid, is become when vertical displacement occurs for measuring point
Liquid pressure changes immediately when change, and response speed is very fast, is suitable for dynamic and static DATA REASONING.
4, Settlement Profiler monitoring method of the invention can in advance indoors will be each according to design drawing when system is installed
The differential Settlement Profiler meter of section connects and liquid filling body, and for normal rear whole Transporting to be debugged to construction site, it is heavy to be put into
Pipe design position drops, and it is very simple and fast, the difficulty of construction of monitoring system for field is greatly reduced, installation effect is improved
Rate.
5, Settlement Profiler monitoring method of the invention builds motionless benchmark by way of being bored into basement rock and placing steel tubes
Point monitors all measuring points of system with the measurement data relevant treatment of datum mark, obtains the absolute settlement value of each measuring point.
6, the bright Settlement Profiler monitoring method of this hair uses standard RS485 digital data transmissions, and system structure is simple and convenient,
The system integration is with the obvious advantage, is easy to implement advanced IT application and intelligentized subgrade settlement automatic monitoring system.
Description of the drawings
Fig. 1 is principle schematic diagram of the present invention in concrete application example.
Fig. 2 is use principle schematic diagram of the present invention in concrete application example.
Fig. 3 is the circuit theory schematic diagram of present invention acquisition module in concrete application example.
Fig. 4 is the circuit theory schematic diagram of present invention micro-control module in concrete application example.
Fig. 5 is the circuit theory schematic diagram of present invention power module in concrete application example.
Fig. 6 is the circuit theory schematic diagram of present invention communication unit module in concrete application example.
Marginal data：
1, air pipe interface；2, cable interface；3, steel wire rope；4, waterpipe jointing；5, shell；6, sealing ring；7, liquid cabin；8, it acquires
Control unit；9, air bin；10, pressure transmitter；11, basement rock；12, steel pipe；13, workbench；14, acquisition station；15, water
Case；16, differential Settlement Profiler meter；17, tracheae；18, shielded cable；19, water pipe；20, sedimentation pipe；21, roadbed.
Specific implementation mode
The present invention is described in further details below with reference to Figure of description and specific embodiment.
As depicted in figs. 1 and 2, differential Settlement Profiler meter 16 of the invention, principle are become using high-precision pressure
The variation for sending the pressure of 10 induced liquid of device, by acquiring the change in displacement calculated with control circuit on sensor vertical direction.
I.e.：It is designed based on fluid pressure transmitter principle and linker fluid pressure conduction principle, incudes liquid using pressure transmitter 10
The variation of body pressure is simultaneously converted to standard voltage signal output, and acquisition control unit 8 collects voltage signal and calculates automatically
The height difference of liquid changes.
The differential Settlement Profiler meter 16 of the present invention includes mainly liquid cabin 7, air bin 9 and pressure transmitter 10, pressure
Transmitter 10 is completely isolated by liquid cabin 7 and air bin 9, and 9 trachea 17 of air bin is communicated with air, 7 external water pipe of liquid cabin
19 and liquid filling body after communicated with air, pressure transmitter 10 incude be the pressure of air bin 9 and liquid cabin 7 between the two
Difference.Since two cavitys are communicated with air, actual sensed be exactly liquid generate pressure.When differential Settlement Profiler meter 16
When the change in displacement of vertical direction occurs, liquid height changes, and pressure is caused also to change, according to pressure calculation formula
P=ρ gh can calculate the variation of liquid height in the case of known fluid density.
In the present embodiment, all devices are packaged in shell 5, form integrated device.The inside of each component and shell 5
Sealing ring 6 is provided between wall, to achieve the effect that sealing.
In the present embodiment, the shape of differential Settlement Profiler meter 16 is designed using fairing cylinder type, is avoided when dilatory
It is blocked by 20 connector of sedimentation pipe.
In the present embodiment, pressure transmitter 10 is installed on the vertical center of body, and in this case, sensor rotation is to measuring
Data do not influence.
As preferred embodiment, differential Settlement Profiler meter 16 can be multiple, and by the way of concatenation.Meanwhile
Waterpipe jointing 4, air pipe interface 1, cable interface 2 are all made of symmetric design, and one-in-and-one-out facilitates multiple differential Settlement Profiler meters
16 are concatenated.
In the present embodiment, differential Settlement Profiler meter 16 includes acquisition control unit 8, which fixes peace
Loaded in air bin 9, to play waterproof and dampproof effect.It is appreciated that acquisition control unit 8 can also be by being seal-installed on
Any position in shell 5, as long as meeting actual needs.
Shown in Fig. 3-Fig. 6, acquisition control unit 8 includes mainly acquisition module, microcontroller in concrete application example
Module, power module and communication module.Power module is mainly that entire acquisition control circuit and pressure transmitter 10 provide work
Power supply, to ensure the precision power supply unit of system using the integrated power supply chip of high-precision and Low Drift Temperature（Such as REF5005）.Pressure
It is sent into acquisition module after the differential signal operational amplifier amplification that the differential voltage signal that transmitter 10 exports passes through acquisition module
Analog to digital conversion circuit, be converted to digital signal and be sent to micro-control module processing.Differential signal amplifier uses low biasing
Programmable amplifier（Such as IN128A）, the amplification factor of differential voltage signal is accurately controlled by resistance.Analog-to-digital conversion module
Using 16 ADS1000, the A/D chip is small, IIC interfaces, easy to operate, precision is high.Micro-control module includes MCU electricity
The height of liquid level, storage circuit is obtained by calculation after obtaining digital signal in road and storage circuit, MCU control analog to digital conversion circuits
Using the serial ports memory of high speed, the information such as the number, model and calibrating parameters of sensor are recorded, are convenient for intelligent management and meter
It calculates.Communication module uses enhanced RS485 circuits, long transmission distance, anti-interference and anti-lightning strike superior performance to adapt to severe open country
Outer construction environment.
As shown in Fig. 2, the present invention further provides a kind of Settlement Profiler monitoring method, it is based on multiple differential Settlement Profilers
16 design of meter will be put into pre-buried sink after the concatenations such as water pipe 19, tracheae 17 and the cable of multiple differential Settlement Profiler meters 16
It drops in pipe 20, is equipped with water tank 15 and datum mark, realize the differential settlement for measuring 21 section of roadbed.Multiple sections pass through nothing
Line or wired equal communication modes interconnection, form the differential settlement automatic monitoring system of roadbed 21.
The detailed process of the method for the present invention is：
The above-mentioned differential Settlement Profiler flowmeter sensor 16 of multiple present invention is connected into one section of composition by way of concatenation
Roadbed 21 sedimentation monitoring system.Pre-plugged sedimentation pipe 20 when roadbed 21 is constructed, before installation, first in project management department according to design
Scheme concatenates water pipe 19, tracheae 17, shielded cable 18 and the steel wire rope 3 of the differential Settlement Profiler meter 16 of each section
Come.Liquid to be filled, discharge bubble and debugging it is normal after transport to construction site, pass through the steel wire rope 3 reserved in sedimentation pipe 20
All differential Settlement Profiler meters 16 are drawn to the difficulty for greatly reducing monitoring system for field construction to the position of design, are carried
High installation effectiveness.
The sedimentation monitoring system of one 21 section of roadbed should include a motionless datum mark, and the present invention buries steel by drilling
The method of pipe 12 to basement rock 11 builds motionless datum mark.
One differential Settlement Profiler meter 16 is installed at 12 top of steel pipe and is used as baseline measurements, the height of each measuring point liquid level
The difference of degree changing value and the height change value of datum mark liquid level is the practical sedimentation changing value of measuring point.Multiple Settlement Profiler prisons
A datum mark is shared after being connected according to field condition by water pipe 19 when examining system spacing is not far.
Each section installs a water tank 15 and fills liquid access monitoring system, while tracheae 17 is accessed the upper of water tank 15
Portion effectively avoids the stability that systematic survey is also improved while fast liquid evaporation.
Further, the invention also includes an acquisition station 14, accumulator, solar cell, nothing is coupled in user according to demand
The equipment such as line data transmission module, bus acquisition module and lightning-protection module, realization advanced IT application and intelligentized roadbed 21
Differential settlement automatic monitoring system.
Above-mentioned acquisition station 14, water tank 15 are mounted on a workbench as the differential Settlement Profiler meter 16 of benchmark
13（Cemented platform）On.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For technical staff, several improvements and modifications without departing from the principles of the present invention should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of differential Settlement Profiler meter, which is characterized in that including liquid cabin（7）, air bin（9）And pressure transmitter
（10）, the pressure transmitter（10）By liquid cabin（7）And air bin（9）It is completely isolated, the air bin（9）Trachea（17）
It is communicated with air, the liquid cabin（7）External water pipe（19）And it is communicated with air after liquid filling body, the pressure transmitter（10）
For incuding air bin（9）And liquid cabin（7）Pressure difference between the two.
2. differential Settlement Profiler meter according to claim 1, which is characterized in that all devices are packaged in shell（5）
It is interior, form integrated device.
3. differential Settlement Profiler meter according to claim 2, which is characterized in that the shell（5）Shape be streamline
Body cylinder type.
4. the differential Settlement Profiler meter according to any one of claim 2-3, which is characterized in that the pressure inverting
Device（10）It is installed on shell（5）Vertical center.
5. the differential Settlement Profiler meter according to any one of claim 2-3, which is characterized in that described differential to cut open
Face sedimentation be calculated as it is multiple, and using concatenate by the way of.
6. differential Settlement Profiler meter according to claim 5, which is characterized in that the shell（5）On be provided with water pipe
Interface（4）, air pipe interface（1）And cable interface（2）, and waterpipe jointing（4）, air pipe interface（1）And cable interface（2）It is all made of
Symmetric design, one-in-and-one-out.
7. the differential Settlement Profiler meter according to any one of claim 1-3, which is characterized in that described differential to cut open
Face settlement gauge further includes acquisition control unit（8）, the acquisition control unit（8）It is fixedly installed in air bin（9）In.
8. differential Settlement Profiler meter according to claim 7, which is characterized in that the acquisition control unit（8）Including
Acquisition module, micro-control module, power module and communication module；The power module is used for being entire acquisition control circuit and pressure
Power transmitter（10）Working power is provided；The pressure transmitter（10）The difference that the differential voltage signal of output passes through acquisition module
It is sent into the analog to digital conversion circuit of acquisition module after the amplification of sub-signal operational amplifier, is converted to digital signal and is sent to described micro-
Control module processing；The micro-control module includes MCU circuits and storage circuit, and liquid level is obtained by calculation in the MCU circuits
Height, the storage circuit be used for store data；The communication module is used for completing the transmission of signal.
9. a kind of Settlement Profiler monitoring method based on the differential Settlement Profiler meters of any one of the claims 1-8,
It is characterized in that, multiple differential Settlement Profiler flowmeter sensors is connected to the subgrade settlement of one section of composition by way of concatenation
Monitoring system；The pre-plugged sedimentation pipe in construction（20）, pass through sedimentation pipe（20）In reserve steel wire rope（3）By all pressure differences
Formula Settlement Profiler meter is drawn to the position of design.
10. Settlement Profiler monitoring method according to claim 9, which is characterized in that bury steel pipe by drilling（12）It arrives
Basement rock（11）Method build motionless datum mark；In steel pipe（12）Top is installed by one differential Settlement Profiler meter（16）As base
The difference of measurements, the height change value of each measuring point liquid level and the height change value of datum mark liquid level is the reality of measuring point
Settle changing value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111180.9A CN108332712A (en) | 2018-02-05 | 2018-02-05 | Differential Settlement Profiler meter and Settlement Profiler monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810111180.9A CN108332712A (en) | 2018-02-05 | 2018-02-05 | Differential Settlement Profiler meter and Settlement Profiler monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108332712A true CN108332712A (en) | 2018-07-27 |
Family
ID=62928416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810111180.9A Pending CN108332712A (en) | 2018-02-05 | 2018-02-05 | Differential Settlement Profiler meter and Settlement Profiler monitoring method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108332712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440748A (en) * | 2019-07-18 | 2019-11-12 | 嘉兴同禾传感技术有限公司 | The subgrade settlement monitoring device and its application method that can be safeguarded and be multiplexed |
| CN113155086A (en) * | 2021-02-26 | 2021-07-23 | 广西北投交通养护科技集团有限公司 | Device and method for monitoring settlement of cross section of filling roadbed in highway reconstruction and extension |
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| CN201075007Y (en) * | 2007-05-11 | 2008-06-18 | 北京益路安技术开发有限公司 | Wireless sedimentation sensor |
| CN201637401U (en) * | 2010-02-09 | 2010-11-17 | 王景青 | Settlement and temperature measuring line |
| CN204479060U (en) * | 2015-01-07 | 2015-07-15 | 天津二十冶建设有限公司 | A kind of subgrade stability recording geometry |
| CN205721869U (en) * | 2016-05-04 | 2016-11-23 | 厦门汇智远科技有限责任公司 | It is applicable to the less radio-frequency sensor-based system of the discontinuous detection of civil structure health status |
| CN208059864U (en) * | 2018-02-05 | 2018-11-06 | 长沙金码测控科技股份有限公司 | Differential Settlement Profiler meter |
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2018
- 2018-02-05 CN CN201810111180.9A patent/CN108332712A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075007Y (en) * | 2007-05-11 | 2008-06-18 | 北京益路安技术开发有限公司 | Wireless sedimentation sensor |
| CN201637401U (en) * | 2010-02-09 | 2010-11-17 | 王景青 | Settlement and temperature measuring line |
| CN204479060U (en) * | 2015-01-07 | 2015-07-15 | 天津二十冶建设有限公司 | A kind of subgrade stability recording geometry |
| CN205721869U (en) * | 2016-05-04 | 2016-11-23 | 厦门汇智远科技有限责任公司 | It is applicable to the less radio-frequency sensor-based system of the discontinuous detection of civil structure health status |
| CN208059864U (en) * | 2018-02-05 | 2018-11-06 | 长沙金码测控科技股份有限公司 | Differential Settlement Profiler meter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440748A (en) * | 2019-07-18 | 2019-11-12 | 嘉兴同禾传感技术有限公司 | The subgrade settlement monitoring device and its application method that can be safeguarded and be multiplexed |
| CN113155086A (en) * | 2021-02-26 | 2021-07-23 | 广西北投交通养护科技集团有限公司 | Device and method for monitoring settlement of cross section of filling roadbed in highway reconstruction and extension |
| CN113155086B (en) * | 2021-02-26 | 2022-11-25 | 广西北投交通养护科技集团有限公司 | Device and method for monitoring section settlement of filling subgrade in highway reconstruction and extension |
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Effective date of registration: 20190220 Address after: 410000 No. 188 Tongzipo West Road, Changsha High-tech Development Zone, Hunan Province Applicant after: Changsha Polytron Technologies Inc Applicant after: The forth Survey and Design Institute (Group) Co., Ltd. Of CRCC Address before: 410205 No. 188 Tongzipo West Road, Changsha City, Hunan Province Applicant before: Changsha Polytron Technologies Inc |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 410000 No. 188 Tongzipo West Road, Changsha High-tech Development Zone, Hunan Province Applicant after: Changsha Polytron Technologies Inc Applicant after: The forth Survey and Design Institute (Group) Co., Ltd. Of CRCC Address before: 410000 No. 188 Tongzipo West Road, Changsha High-tech Development Zone, Hunan Province Applicant before: Changsha Polytron Technologies Inc Applicant before: The forth Survey and Design Institute (Group) Co., Ltd. Of CRCC |