CN201972063U - Equipment for monitoring sedimentation of rapid transit railway works - Google Patents
Equipment for monitoring sedimentation of rapid transit railway works Download PDFInfo
- Publication number
- CN201972063U CN201972063U CN2011200658126U CN201120065812U CN201972063U CN 201972063 U CN201972063 U CN 201972063U CN 2011200658126 U CN2011200658126 U CN 2011200658126U CN 201120065812 U CN201120065812 U CN 201120065812U CN 201972063 U CN201972063 U CN 201972063U
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- Prior art keywords
- sedimentation
- equipment
- pressure
- monitoring
- pressure transmitter
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Abstract
The utility model discloses equipment for monitoring sedimentation of rapid transit railway works. A sealing cover is arranged at the upper part of a liquid storage device of the equipment, pressure transfer liquid is filled in the middle lower part of the liquid storage device, the upper part of the liquid storage device is connected with a pressure leading-in end I of a pressure transmitter by an air pipe, the lower part of the liquid storage device is connected with a pressure leading-in end II of the pressure transmitter by a pressure transfer pipe, an electric signal output end of the pressure transmitter is electrically connected with a data acquisition and transmission system, and the data acquisition and transmission system is communicated with a control center. The equipment has a simple structure and high precision, and is convenient to operate; and by adopting the equipment, the long-time automatic monitoring on the sedimentation of the rapid transit railway works in areas with severe environment can be realized.
Description
Technical field
The utility model belongs to the Surveying Science and Technology field, particularly the settlement monitoring equipment of high-speed railway works.
Background technology
China railways is realizing great-leap-forward development, and newly-built high speed passenger dedicated railway and the speed-raising of transformation existing railway are built in the ascendant.High speed traveling requires line construction that the rail system of high ride is provided.How accurately the sedimentation and deformation of monitoring of structures thing becomes the key technical problem of high-speed railway.
Traditional sedimentation and deformation monitoring equipment mainly contains two big classes: the one, and conventional measureing equipment (geodetic survey and photogrammetric); The 2nd, the physics sensor device.Conventional measureing equipment has advantages such as certainty of measurement height, data be reliable, and the observation workload is big, efficient is low, is subjected to climatic effect big but have, and is difficult for realizing continuously and automatic monitoring, and requires shortcomings such as monitoring point and basic point communication.The physics sensor is as the sedimentation tester device, though as section settlement gauge, magnet ring settlement gauge, electrical measurement rod-type settlement gauge etc. advantages such as volume is little, the life-span is long, measuring method is easy, the collection data is reliable are arranged.But its observation workload is big, the anti-vibration ability is low, be subjected to big and difficult the realization continuously and automatic monitoring of climatic effect, also is difficult to satisfy the requirement of Line for Passenger Transportation settlement observation on precision.And electronic level and total powerstation though can accurately test the distortion of ground building settlement, need be provided with ground reference point, and be subjected to the weather such environmental effects very big, have a strong impact on the on-the-spot test precision.
In sum, need a kind of high accuracy of exploitation, affected by environment little, method of testing simple, can satisfy the accurate testing equipment at the works sedimentation and deformation.
The utility model content
The purpose of this utility model just provides a kind of equipment of monitoring the sedimentation of high-speed railway works, it can realize the automation continuous monitoring of high-speed railway works sedimentation, and this device structure is simple, cost is low, precision is high, little can the monitoring under adverse circumstances affected by environment.
The technical scheme that its goal of the invention that realizes the utility model adopts is: a kind of equipment of monitoring the sedimentation of high-speed railway works, it is characterized in that: seal cover is arranged at reservoir top, pressure transmission liquid is equipped with in the reservoir middle and lower part, reservoir top links to each other with the pressure leading-in end one of pressure transmitter by tracheae, the bottom of reservoir links to each other with the pressure leading-in end two of pressure transmitter by pressure tube, the electrical signal of pressure transmitter is electrically connected with data collection and transfering system, data collection and transfering system and control centre's communication.
Using method of the present utility model is as follows:
A, equipment are installed: described reservoir bottom is fixed on the sedimentation face to be measured with setscrew, and pressure transmitter is fixed on reference pegs or zero sedimentation place;
B, monitoring: at first data collection and transfering system and control centre read the initial electrical signal reading R of pressure transmitter
0In observation process, read the signal of telecommunication reading R of pressure transmitter continuously
i, subscript i is the sequence number of data read number of times;
The calculating of C, sedimentation face height to be measured:
When pressure transmitter is linear transducer, the height value S of the sedimentation face to be measured of the i time reading correspondence
iFor: S
i=kR
i+ b, in the formula, k, b are respectively once the fitting coefficient of item and constant term, determine by indoor instrumental calibration, are fitting coefficient, determine by indoor instrumental calibration;
When pressure transmitter is nonlinear transducer, the height value S of the sedimentation face to be measured of the i time reading correspondence
iThen be:
k
2, k
1, b quadratic term, once and the fitting coefficient of constant term, all by indoor instrumental calibration experiment and utilize least square method to determine;
D, draw the sedimentation value of sedimentation face to be measured
The sedimentation value Δ h of the sedimentation face to be measured of the i time reading correspondence
i, draw by following formula:
Δh
i＝I
tiS
i-I
t0S
0
In the formula, I
TiTotal correction factor of the temperature t i correspondence when being the i time reading, I
Ti=span{I
Mti, I
Lti, I
Yti; I
Mti, I
Lti, I
YtiThe unloaded correction factor of the pairing fluid density correction factor of temperature t i when being respectively the i time reading, pipeline length correction coefficient and pressure transmitter, span{I
Mti, I
Lti, I
YtiBe I
Mti, I
Lti, I
YtiThe linear space of opening;
E, data are handled:
Control centre will store the sedimentation value Δ h of the sedimentation face to be measured that at every turn monitors
i, and the displacement time-history curves of the sedimentation face to be measured that draws after handling.
Compared with prior art, the beneficial effects of the utility model are:
1, the principle that is directly proportional with liquid level according to liquid pressure, when pressure transmitter is fixed on the reference pegs, the reference pegs upright position immobilizes, be fixed in reservoir on the sedimentation face to be measured then with the sedimentation sedimentation of sedimentation face, the liquid level of reservoir and the difference in height between pressure transmitter are also changed thereupon, and also the hydraulic pressures of promptly introducing from the pressure leading-in end two of pressure transmitter changes.And the gas pressure intensity for sealing that the pressure leading-in end one of pressure transmitter is introduced remains unchanged.Pressure transmitter detects the variation of pressure at two ends difference, and exports signal of telecommunication reading according to this.After this signal of telecommunication reading is proofreaied and correct through factors such as demarcation, match and temperature again, can accurately draw the sedimentation value of sedimentation face to be measured.Thereby the utility model utilizes the upright position between the reservoir of pressure transmitter and sealing to change dexterously, has realized the continuous automatic outdoor monitoring to sedimentation face.
2, this equipment is realized the settlement monitoring of railway sedimentation face by the liquid level sedimentation of airtight container, reduce to the interference effect of external environment minimum, by the rectification building-out to temperature, make sedimentation test of the present utility model more accurately reliable simultaneously, its precision is up to 0.01mm.
3, the transducing part of this equipment only is made of reservoir, pressure transmitter and connecting line, and is simple in structure, and cost of manufacture is low, safeguards easily stable and reliable operation.
4, because temperature-compensating mechanism is arranged, so the utility model, then can be used for extremely frigid zones and uses when pressure transmission liquid adopts anti-icing fluid applicable to the sedimentation test of high temperature difference area.Can realize the accurate test of the abominable regional sedimentation of environment.
5, testing range is adjustable, and range ability is big.Can regulate range by the initial liquid level discrepancy in elevation of installing of control, also can be by adjusting the purpose that the pressure transmitter parameter reaches the control and regulation range.
6, use the method for this testing equipment simple, carry out automatically continuously, good stability, test signal transfers to indoor control centre, can realize the unmanned long-term automation remote monitoring of high-speed railway works sedimentation.
Above-mentioned pressure transmitter is installed in the protective cover.Further like this interference and the influence that has reduced outer bound pair test improved measuring accuracy, also improved the application life of pressure transmitter.
Be provided with sealing ring between above-mentioned seal cover and the reservoir.
Above-mentioned pressure transmission liquid surface filling silicone oil.Can reduce the evaporation of pressure transmission liquid like this, reduce the maintenance cost of equipment, reduce the frequency of maintenance of equipment.
Above-mentioned pressure transmission liquid is distilled water or anti-icing fluid.Use distilled water to reduce cost when normal temperature is monitored like this, use anti-icing fluid then can monitor at extremely frigid zones.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Fig. 1 illustrates, a kind of specific embodiment of the present utility model is, a kind of equipment of monitoring the sedimentation of high-speed railway works, it is characterized in that: seal cover 5 is arranged at reservoir 9 tops, pressure transmission liquid 8 is equipped with in reservoir 9 middle and lower parts, reservoir 9 tops link to each other with the pressure leading-in end one of pressure transmitter 4 by tracheae 2, the bottom of reservoir 9 links to each other with the pressure leading-in end two of pressure transmitter 4 by pressure tube 3, the electrical signal of pressure transmitter 4 is electrically connected with data collection and transfering system 15, data collection and transfering system 15 and control centre's 16 communications.
Communicating by letter between data collecting system and control centre can be adopted wired, also can adopt wireless mode to carry out.As adopting ripe GPRS communication to carry out.
This routine pressure transmitter 4 is installed in the protective cover 11.Be provided with sealing ring 6 between seal cover 5 and the reservoir 9.
These routine pressure transmission liquid 8 surface filling silicone oil 7.Pressure transmission liquid 8 is distilled water or anti-icing fluid.
Use the utility model equipment method that sedimentation is monitored to the high-speed railway works as follows:
A, equipment are installed: described reservoir 9 bottoms are fixed on the sedimentation face 18 to be measured with setscrew, and pressure transmitter is fixed on reference pegs 17 or zero sedimentation place;
B, monitoring: at first data collection and transfering system 15 and control centre read the initial electrical signal reading R of pressure transmitter 4
0In observation process, read the signal of telecommunication reading R of pressure transmitter 4 continuously
i, subscript i is the sequence number of data read number of times;
The calculating of C, sedimentation face height to be measured:
When pressure transmitter is linear transducer, the height value S of the sedimentation face to be measured of the i time reading correspondence
iFor: S
i=kR
i+ b, in the formula, k, b are respectively once the fitting coefficient of item and constant term, determine by indoor instrumental calibration, are fitting coefficient, determine by indoor instrumental calibration;
When pressure transmitter is nonlinear transducer, the height value S of the sedimentation face to be measured of the i time reading correspondence
iThen be:
k
2, k
1, b quadratic term, once and the fitting coefficient of constant term, all by indoor instrumental calibration experiment and utilize least square method to determine;
D, draw the sedimentation value of sedimentation face to be measured
The sedimentation value Δ h of the sedimentation face to be measured of the i time reading correspondence
i, draw by following formula:
Δh
i＝I
tiS
i-I
t0S
0
In the formula, I
TiTotal correction factor of the temperature t i correspondence when being the i time reading, I
Ti=span{I
Mti, I
Lti, I
Yti; I
Mti, I
Lti, I
YtiThe unloaded correction factor of the pairing fluid density correction factor of temperature t i when being respectively the i time reading, pipeline length correction coefficient and pressure transmitter, span{I
Mti, I
Lti, I
YtiBe I
Mti, I
Lti, I
YtiThe linear space of opening;
E, data are handled:
Control centre will store the sedimentation value Δ h of the sedimentation face to be measured that at every turn monitors
i, and the displacement time-history curves of the sedimentation face to be measured that draws after handling, i.e. settlement-time curve.
The utility model for ectocines such as better minimizing temperature, can be imbedded pressure tube 3 in the soil when implementing.
The pressure transmitter 4 that the utility model uses can adopt various existing pressure transmitters.As selecting SE133 type pressure transmitter for use, this transmitter operating principle is: utilize semi-conductive piezoresistive effect and micromachining technology, on the particular crystal orientation of monocrystalline silicon piece, semiconductor technology with diffusion is manufactured a Wheatstone bridge, form sensitive diaphragm, do time spent generation microstrain when being subjected to external force, resistivity changes, make arm resistance (a pair of change big a pair of diminishing) driving voltage signal output that changes, through the computer temperature compensation, laser resistor trimming, processing means and strict assembling detections such as signal amplification, technologies such as demarcation are produced and are had standard output signals.
When implementing, all do waterproofing work for all joints, in order to realize long term monitoring, the equipment appearance need be done anti-corrosion treatment.
Claims (5)
1. equipment of monitoring the sedimentation of high-speed railway works, it is characterized in that: seal cover (5) is arranged at reservoir (9) top, and pressure transmission liquid (8) is equipped with in reservoir (9) middle and lower part; Reservoir (9) top links to each other with the pressure leading-in end one of pressure transmitter (4) by tracheae (2), and the bottom of reservoir (9) links to each other with the pressure leading-in end two of pressure transmitter (4) by pressure tube (3); The electrical signal of pressure transmitter (4) is electrically connected with data collection and transfering system (15), data collection and transfering system (15) by with control centre (16) communication.
2. a kind of equipment of monitoring the sedimentation of high-speed railway works as claimed in claim 1 is characterized in that: described pressure transmitter (4) is installed in the protective cover (11).
3. a kind of equipment of monitoring the sedimentation of high-speed railway works as claimed in claim 1 is characterized in that: be provided with sealing ring (6) between described seal cover (5) and the reservoir (9).
4. a kind of equipment of monitoring the sedimentation of high-speed railway works as claimed in claim 1 is characterized in that: described pressure transmission liquid (8) surface filling silicone oil (7).
5. a kind of equipment of monitoring the sedimentation of high-speed railway works as claimed in claim 1 is characterized in that: described pressure transmission liquid (8) is distilled water or anti-icing fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200658126U CN201972063U (en) | 2011-03-14 | 2011-03-14 | Equipment for monitoring sedimentation of rapid transit railway works |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200658126U CN201972063U (en) | 2011-03-14 | 2011-03-14 | Equipment for monitoring sedimentation of rapid transit railway works |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972063U true CN201972063U (en) | 2011-09-14 |
Family
ID=44577170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200658126U Expired - Lifetime CN201972063U (en) | 2011-03-14 | 2011-03-14 | Equipment for monitoring sedimentation of rapid transit railway works |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972063U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146648A (en) * | 2011-03-14 | 2011-08-10 | 西南交通大学 | High-speed railway structure settlement monitoring device and monitoring method |
| CN105318860A (en) * | 2014-08-04 | 2016-02-10 | 安徽宝翔建设集团有限责任公司 | Building sedimentation observation method and structure |
| CN105603841A (en) * | 2015-12-30 | 2016-05-25 | 西南交通大学 | Ballastless track settlement monitoring device |
-
2011
- 2011-03-14 CN CN2011200658126U patent/CN201972063U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146648A (en) * | 2011-03-14 | 2011-08-10 | 西南交通大学 | High-speed railway structure settlement monitoring device and monitoring method |
| CN105318860A (en) * | 2014-08-04 | 2016-02-10 | 安徽宝翔建设集团有限责任公司 | Building sedimentation observation method and structure |
| CN105318860B (en) * | 2014-08-04 | 2018-02-13 | 安徽宝翔建设集团有限责任公司 | Building subsidence observation method and structure |
| CN105603841A (en) * | 2015-12-30 | 2016-05-25 | 西南交通大学 | Ballastless track settlement monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110914 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |