CN203383201U - Measuring device for monitoring soil mass layered settlement - Google Patents
Measuring device for monitoring soil mass layered settlement Download PDFInfo
- Publication number
- CN203383201U CN203383201U CN201320476435.4U CN201320476435U CN203383201U CN 203383201 U CN203383201 U CN 203383201U CN 201320476435 U CN201320476435 U CN 201320476435U CN 203383201 U CN203383201 U CN 203383201U
- Authority
- CN
- China
- Prior art keywords
- settlement
- pipe
- grating displacement
- measurement
- displacement meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model provides a measuring device for monitoring soil mass layered settlement. The measuring device comprises a settlement pipe. The settlement pipe is provided with multiple sections of settlement measurement pipes, the interior of each section of the settlement measurement pipe is provided with a fiber bragg grating displacement meter, a settlement ring is installed on the outer wall of each settlement measurement pipe in a sleeved mode, two symmetrically-formed sliding chutes are vertically formed in the wall of each settlement measurement pipe, transverse rods are installed in the sliding chutes, the settlement rings are fixedly connected with the two ends of the transverse rods, and the transverse rods in the settlement measurement pipes are connected with pull rods on lower portions of the fiber bragg grating displacement meters. The pull rods of the fiber bragg grating displacement meters are pulled through the settlement rings jointly settling along with a soil mass, so the precise numerical value of soil mass settlement is measured through fiber bragg grating interrogators, and automatic measurement is achieved. Meanwhile, the fiber bragg grating displacement meters are flexible in reflection of the outside world, so monitoring precision is higher, and the measuring device is applied to layered settlement monitoring of various soil masses and especially suitable for engineering projects having higher requirements for monitoring precision.
Description
Technical field
The utility model relates to a kind of measurement mechanism of monitoring soil body delaminating deposition, particularly a kind of measurement mechanism that utilizes the building lot soil body delaminating depositions such as FBG monitoring dam foundation soil body, barged-in fill.
Background technology
Larger sedimentation usually can occur in the foundation soil body of building the engineerings such as reservoir dam on the soft foundations such as barged-in fill, man-made island island wall under the built-loading effect; and the ubiquity infall process is the problem such as length and differential settlement, larger on the safety and stability impact of various engineering structuress.Therefore, the sedimentation of engineering structures foundation soil body especially delaminating deposition feature is monitored and had very important significance.The method of monitoring foundation soil body delaminating deposition is mainly the measurement mechanism that adopts the magnet ring type laminated settlement meter at present, and this settlement measurement equipment mainly is comprised of the two large divisions: the one, and underground inlet part, be comprised of sedimentation conduit and bottom, sedimentation magnet ring; The 2nd, ground receives instrument one steel ruler settlement gauge, gauge head, measurement cable, receiving system and wire spool etc., partly consists of.In use, when transducer probe assembly approaches magnet ring and pipes while reporting to the police, can there be corresponding hysteresis in the time that artificial judgement stops transferring transducer probe assembly to this measurement mechanism, causes certain error in reading; The tape measure reading that manually reads sedimentation pipe mouth of pipe place also will cause artificial error in reading, so this kind of measuring method is for requiring the object of construction production that the settlement monitoring precision is higher to be not suitable for simultaneously.In addition, this kind of measuring method needs regularly each measuring point to be carried out to manual measurement, and the surveying work amount is larger, and does not possess the characteristics of Real-Time Monitoring, and its monitoring effect has serious hysteresis quality.
Summary of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, and a kind of measurement mechanism of reasonable in design, monitoring soil body delaminating deposition that certainty of measurement is high is provided.
Technical problem to be solved in the utility model is to realize by following technical scheme, the utility model is a kind of measurement mechanism of monitoring soil body delaminating deposition, be characterized in: comprise sedimentation pipe, sedimentation pipe is provided with some sections settlement measurement pipes, in every section settlement measurement pipe, Optical Fiber Grating Displacement Meter all is housed, be set with the sedimentation ring on the outer wall of described settlement measurement pipe, vertically be provided with two symmetrically arranged chutes on the tube wall of settlement measurement pipe, cross bar is housed in chute, the sedimentation ring is fixedly connected with the two ends of cross bar, cross bar in described settlement measurement pipe is connected with the pull bar of Optical Fiber Grating Displacement Meter bottom.
Technical problem to be solved in the utility model can also further realize by following technical scheme, described Optical Fiber Grating Displacement Meter comprises Optical Fiber Grating Displacement Meter body and pull bar, the lower end of Optical Fiber Grating Displacement Meter body is provided with and is sleeved on the outer sleeve pipe of pull bar, the inwall of sleeve pipe is provided with the cannelure of twice up and down coordinated with pull bar, and the O RunddichtringO is housed in cannelure.
Technical problem to be solved in the utility model can also further realize by following technical scheme, on the external surface of Optical Fiber Grating Displacement Meter body and pull bar, is equipped with corrosion-inhibiting coating.
The utility model pulls the pull bar of Optical Fiber Grating Displacement Meter by the sedimentation ring with the common sedimentation of the soil body, thereby records the accurate numerical value of soil body sedimentation by fiber Bragg grating (FBG) demodulator, has realized automatic measurement.Compared with prior art, sedimentation pipe of the present utility model is easy for installation, by Optical Fiber Grating Displacement Meter, reflects to external world sensitive characteristics, makes monitoring accuracy higher, be applicable to the delaminating deposition monitoring of the various soil bodys, the object of construction production that is particularly useful for monitoring accuracy is had relatively high expectations.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the Optical Fiber Grating Displacement Meter structural representation.
The specific embodiment
Referring to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the utility model further, and do not form the restriction to its right.
With reference to accompanying drawing 1, a kind of measurement mechanism of monitoring soil body delaminating deposition, comprise sedimentation pipe 1, sedimentation pipe 1 is provided with some sections corrosion-resistant stainless steel settlement measurement pipes 6, according to measuring the quantity and spacing that needs to determine settlement measurement pipe 6, the sedimentation pipe 1 of remainder can be made for the PVC material, every section interior Optical Fiber Grating Displacement Meter 7 that all is equipped with of settlement measurement pipe 6, be set with sedimentation ring 5 on the outer wall of described settlement measurement pipe 6, vertically be provided with two symmetrically arranged chutes on the tube wall of settlement measurement pipe 6, cross bar 4 is housed in chute, sedimentation ring 5 is fixedly connected with the two ends of cross bar 4, when moving up and down, sedimentation ring 5 can make cross bar 4 slide in chute, cross bar 4 in described settlement measurement pipe 6 is connected with the pull bar of Optical Fiber Grating Displacement Meter 7 bottoms, make sedimentation ring 5, cross bar 4 and Optical Fiber Grating Displacement Meter 7 can slide jointly in chute.
During installation, sedimentation pipe 1 is put into to measured hole 3, and make Optical Fiber Grating Displacement Meter 7 be connected with light grating demodulation instrument by fiber grating optical cable 2.In soil body infall process, sedimentation ring 5 will and pull the pull bar of Optical Fiber Grating Displacement Meter 7 with the common sedimentation of the soil body by cross bar 4, thereby will record the accurate numerical value of soil body sedimentation by fiber Bragg grating (FBG) demodulator.Simultaneously, because data acquiring frequency reaches as high as 100 hertz, carry out data by computer in gatherer process and process and transmission, can realize real-time and the automation of settlement monitoring.
The size of settlement measurement pipe 6 and quantity are determined according to the Practical Project situation.Also can select pipe range 1000mm, wall thickness 3mm, the settlement measurement pipe 6 of external diameter 53mm.Chute on settlement measurement pipe 6 is 200mm apart from the distance at pipe top, the long 500mm of chute, wide 7mm.Supporting sedimentation ring 5 can be the PVC material, and the internal diameter of sedimentation ring 5 is 53mm, and can on the outer wall of settlement measurement pipe 6, slide up and down.
With reference to Fig. 2, described Optical Fiber Grating Displacement Meter 7 comprises Optical Fiber Grating Displacement Meter body 11 and pull bar 10, Optical Fiber Grating Displacement Meter body 11 is fixed on the top of settlement measurement pipe 6, the lower end of Optical Fiber Grating Displacement Meter body 11 is provided with and is sleeved on the outer sleeve pipe 8 of pull bar 10, pull bar 10 is in the interior slip of sleeve pipe 8, the inwall of sleeve pipe is provided with the cannelure of twice up and down coordinated with pull bar, corrosion resistant O RunddichtringO 9 is housed in cannelure, can prevents that corrosive liquids from slipping into displacement meter internal corrosion grating by pull bar 10.Be equipped with corrosion-inhibiting coating on the external surface of Optical Fiber Grating Displacement Meter body 11 and pull bar 10.The part position of Optical Fiber Grating Displacement Meter 7 should adopt glass cement to carry out encapsulation process.
The present invention utilizes current advanced person's fiber grating sensing technology, the measurement antijamming capability is strong, certainty of measurement high (certainty of measurement can reach 0.03mm), data acquiring frequency high (frequency acquisition reaches as high as 100 hertz), reduce to the full extent the manual measurement operation, reduce the error that manual operation causes, and easily be automated monitoring and safe early warning.
Claims (3)
1. a measurement mechanism of monitoring soil body delaminating deposition, it is characterized in that: comprise sedimentation pipe, sedimentation pipe is provided with some sections settlement measurement pipes, in every section settlement measurement pipe, Optical Fiber Grating Displacement Meter all is housed, be set with the sedimentation ring on the outer wall of described settlement measurement pipe, vertically be provided with two symmetrically arranged chutes on the tube wall of settlement measurement pipe, cross bar is housed in chute, the sedimentation ring is fixedly connected with the two ends of cross bar, and the cross bar in described settlement measurement pipe is connected with the pull bar of Optical Fiber Grating Displacement Meter bottom.
2. the measurement mechanism of monitoring soil body delaminating deposition according to claim 1, it is characterized in that: described Optical Fiber Grating Displacement Meter comprises Optical Fiber Grating Displacement Meter body and pull bar, the lower end of Optical Fiber Grating Displacement Meter body is provided with and is sleeved on the outer sleeve pipe of pull bar, the inwall of sleeve pipe is provided with the cannelure of twice up and down coordinated with pull bar, and the O RunddichtringO is housed in cannelure.
3. the measurement mechanism of monitoring soil body delaminating deposition according to claim 2, is characterized in that: on the external surface of Optical Fiber Grating Displacement Meter body and pull bar, be equipped with corrosion-inhibiting coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320476435.4U CN203383201U (en) | 2013-08-06 | 2013-08-06 | Measuring device for monitoring soil mass layered settlement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320476435.4U CN203383201U (en) | 2013-08-06 | 2013-08-06 | Measuring device for monitoring soil mass layered settlement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383201U true CN203383201U (en) | 2014-01-08 |
Family
ID=49871712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320476435.4U Expired - Fee Related CN203383201U (en) | 2013-08-06 | 2013-08-06 | Measuring device for monitoring soil mass layered settlement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383201U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501732A (en) * | 2014-12-16 | 2015-04-08 | 河海大学 | Device and method for hydraulic structure deformation distribution type optical fiber monitoring |
| CN108505992A (en) * | 2018-03-12 | 2018-09-07 | 中国水利水电第十工程局有限公司 | The method of packer permeability test applied to the following bedrock exploration of sand gravel coating |
| CN115450267A (en) * | 2022-06-07 | 2022-12-09 | 中国葛洲坝集团勘测设计有限公司 | Earth and rock dam settling pipe relay installation and embedding structure and method thereof |
-
2013
- 2013-08-06 CN CN201320476435.4U patent/CN203383201U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501732A (en) * | 2014-12-16 | 2015-04-08 | 河海大学 | Device and method for hydraulic structure deformation distribution type optical fiber monitoring |
| CN104501732B (en) * | 2014-12-16 | 2015-09-02 | 河海大学 | A kind of hydro-structure distortion distributed optical fiber sensing device and method |
| CN108505992A (en) * | 2018-03-12 | 2018-09-07 | 中国水利水电第十工程局有限公司 | The method of packer permeability test applied to the following bedrock exploration of sand gravel coating |
| CN108505992B (en) * | 2018-03-12 | 2021-10-08 | 中国水利水电第十一工程局有限公司 | Water-pressurizing test method applied to bedrock exploration under sand gravel covering layer |
| CN115450267A (en) * | 2022-06-07 | 2022-12-09 | 中国葛洲坝集团勘测设计有限公司 | Earth and rock dam settling pipe relay installation and embedding structure and method thereof |
| CN115450267B (en) * | 2022-06-07 | 2023-10-27 | 中国葛洲坝集团勘测设计有限公司 | Relay installation and burying structure and method for earth-rock dam settling tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103362114B (en) | A kind of measuring method of monitoring soil body delaminating deposition | |
| CN103148835B (en) | Settlement observing pre-embedded piece, settlement observing device and installation device | |
| CN105890537A (en) | Distributed fiber optic sensing technology and system for monitoring of deformation of high arch dam | |
| CN105509628B (en) | A kind of magnetic survey positioner and the method that landslide depth displacement monitoring is carried out using the device | |
| CN104594396A (en) | Ground foundation settlement monitoring system | |
| CN203383201U (en) | Measuring device for monitoring soil mass layered settlement | |
| CN103134602A (en) | Buried pipe ground temperature measuring device and measuring methods | |
| CN202748106U (en) | Liquid level magnetostriction double-floater liquid level meter for liquid storage tank | |
| CN208000117U (en) | A kind of mangneto electrical measurement sedimentometer | |
| CN111024033A (en) | Rockfill dam settlement monitoring point device, monitoring system and monitoring method | |
| CN101871344B (en) | Weighing type gas well shaft liquid level position determination method | |
| CN109186445B (en) | Test equipment for wirelessly monitoring deformation of carbon rock slope surface and application method thereof | |
| CN111457889A (en) | Method for monitoring subway tunnel settlement through optical fiber static level | |
| CN201876257U (en) | Dam foundation settlement meter for extra-large measuring range dam | |
| CN101226129A (en) | Body variate method for sample penetrability flow measurement | |
| CN104596477A (en) | Transformer substation foundation settlement monitoring method | |
| CN208984062U (en) | A kind of preboring formula soil layer layering measuring instrument | |
| CN201828260U (en) | Physics type settlement meter | |
| CN110554447A (en) | magnetostrictive rain gauge and rain sensing method | |
| CN102692209A (en) | Structure and method for monitoring pipeline settlement conditions | |
| CN206459650U (en) | A kind of mangneto sedimentometer | |
| CN103512554A (en) | Physical settlement meter with high measurement precision | |
| CN101694379A (en) | Method for detecting depth of underground pipelines | |
| CN202630949U (en) | Physical settlement meter with high measurement precision | |
| CN204924162U (en) | Inside horizontal displacement monitoring devices of dam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160806 |