CN205718938U - Shaketalle test is measured the strain band of soil body layering strain - Google Patents
Shaketalle test is measured the strain band of soil body layering strain Download PDFInfo
- Publication number
- CN205718938U CN205718938U CN201620423510.4U CN201620423510U CN205718938U CN 205718938 U CN205718938 U CN 205718938U CN 201620423510 U CN201620423510 U CN 201620423510U CN 205718938 U CN205718938 U CN 205718938U
- Authority
- CN
- China
- Prior art keywords
- strain
- band
- soil body
- foil gauge
- flexible water
- 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
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses the strain band measuring soil body layering strain in a kind of shaketalle test, its composition is: flexible water band (1) surface longitudinal in bar shaped pastes row's foil gauge (2), and the surface of foil gauge (2) is coated with waterproof coating (3)；The sensitive grid direction of foil gauge (2) is consistent with the length direction of flexible water band (1).Soil body layering strain can directly accurately be measured by this strain band, and simple in construction is easy for installation, with low cost.
Description
Technical field
The utility model relates to a kind of measurement apparatus, particularly relates to measure in shaketalle test the dress of soil body layering strain
Put.
Background technology
Soil body shaketalle test is in nuclear power station, hydroelectric power plant, the stability safety evaluation in place, airport and reliability analysis
An important tests.Soil body shaketalle test is the vibration applying different modes and intensity to the soil body, and the measurement soil body is in difference
The data such as the displacement under Vibration Condition, soil pressure, pore water pressure and soil body strain.Test data is treated, can appear on the scene
Deathtrap etc. under ground safety coefficient, seimic wave propagation rule, ground seismic wave function, thus provide foundation for place safety evaluation,
And reinforce offer test basis for place.
In soil body shaketalle test, soil body layering strain data is one of important indicator of place safety evaluation.At present
Measurement to soil body layering strain is mainly utilized in the soil body with array way cloth acceleration pick-up sensor, passes through quadratic integral
Obtain land movement value, and then judge soil body layering situation of change by change in displacement.This method is indirect method, and it is right to need
Surveyed data carry out a large amount of mathematical computations just can obtain being layered strain data, and is converted into this side of strain by measuring acceleration
There is bigger error in method.
Utility model content
The purpose of this utility model is to provide in a kind of shaketalle test the strain band of measurement soil body layering strain.This strain
Soil body layering strain can directly be measured by band, and its measurement result is more accurately reliable, and its simple in construction, easy for installation, becomes
This is cheap.
The utility model realizes that its goal of the invention is adopted the technical scheme that: in a kind of shaketalle test, the measurement soil body divides
The strain band of ply strain, its composition is: the flexible water belt surface in bar shaped longitudinally pastes row's foil gauge, the surface of foil gauge
Coating waterproof coating；The sensitive grid direction of foil gauge is consistent with the length direction of flexible water band.
Using method of the present utility model and operation principle be:
It in the test of soil body shake table, is vertically placed in strain band in layered soil, makes strain band pass through each layer soil body, so
The rear compacting soil body makes strain band contact well with the soil body.Applying vibration to the soil body, the soil body produces laminar shear deformation, so that soft
Property water blocking tape deformation, foil gauge with flexible water band deformation produce microstrain, the microstrain of foil gauge is the shearing of the soil body
Deformation.Soil body layering strain can be measured by the microstrain data gathering foil gauge.
Compared with prior art, the beneficial effects of the utility model are:
First, flexible flexible water band is used, it is ensured that the strain of stickup foil gauge thereon and the one of soil deformation
Causing, measurement result is accurate.
2nd, the foil gauge by being pasted on flexible water band directly measures the layering deformation of the soil body, it is not necessary to carry out complexity
Mathematical computations process, both simply, conveniently, and make measurement result more accurately, reliable.
3rd, only need to paste foil gauge on flexible water band, then on foil gauge, coat waterproof coating, can be prepared by strain
Band；Technique is simple, with low cost.
Further, the material of the flexible water band described in the utility model is polyvinyl chloride soft glass.
This material meets flexibility and water resistance needed for flexible water band, and stable performance, is difficult to aging, cost
Cheap.
Further, a length of 6-8cm of the sensitive grid of foil gauge described in the utility model.
The sensitive grid of this length range can ensure the certainty of measurement to soil body layering strain.
Further, on flexible water band described in the utility model, all of foil gauge output is all and signal pickup assembly
Electrical connection.
So, measurement can be synchronized simply and easily to the strain of the soil body of different layers and compare.
Further, the flexible water belt surface near foil gauge is also covered by waterproof coating of the present utility model.
So, the coating both having facilitated waterproof coating operates, and also can preferably guarantee that foil gauge will not cause it because making moist
Emergent property is degenerated, to ensure test data accurately and reliably.
With detailed description of the invention, the utility model is described further below in conjunction with the accompanying drawings.
Brief description
Fig. 1 is the utility model embodiment overall structure schematic diagram.
Fig. 2 is the schematic cross-section that the utility model is applied to layered soil strain measurement.
Detailed description of the invention
Embodiment
Fig. 1, Fig. 2 illustrate, a kind of detailed description of the invention of the present utility model is: in a kind of shaketalle test, the measurement soil body divides
The strain band of ply strain, its composition is:
Flexible water belt surface in bar shaped longitudinally pastes row's foil gauge 2, the surface coating waterproof coating 3 of foil gauge 2；
The sensitive grid direction of foil gauge 2 is consistent with the length direction of flexible water band 1.
The material of the flexible water band 1 described in this example is polyvinyl chloride soft glass.
The a length of 6-8cm of sensitive grid of foil gauge 2 described in this example.
On flexible water band 1 described in this example, all of foil gauge 2 output all electrically connects with signal pickup assembly.
Flexible water band 1 surface near foil gauge 2 is also covered by the waterproof coating 3 of this example.
Claims (5)
1. measuring a strain band for soil body layering strain in shaketalle test, its composition is:
Flexible water band (1) surface longitudinal in bar shaped pastes row's foil gauge (2), and the surface of foil gauge (2) is coated with waterproof
Coating (3)；The sensitive grid direction of foil gauge (2) is consistent with the length direction of flexible water band (1).
2. a kind of shaketalle test according to claim 1 is measured the strain band of soil body layering strain, it is characterised in that:
The material of described flexible water band (1) is polyvinyl chloride soft glass.
3. a kind of shaketalle test according to claim 1 is measured the strain band of soil body layering strain, it is characterised in that:
The a length of 6-8cm of sensitive grid of described foil gauge (2).
4. a kind of shaketalle test according to claim 1 is measured the strain band of soil body layering strain, it is characterised in that:
Described foil gauge (2) output on flexible water band (1) all electrically connects with signal pickup assembly.
5. a kind of shaketalle test according to claim 1 is measured the strain band of soil body layering strain, it is characterised in that:
Flexible water band (1) surface near foil gauge (2) is also covered by described waterproof coating (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423510.4U CN205718938U (en) | 2016-05-11 | 2016-05-11 | Shaketalle test is measured the strain band of soil body layering strain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423510.4U CN205718938U (en) | 2016-05-11 | 2016-05-11 | Shaketalle test is measured the strain band of soil body layering strain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205718938U true CN205718938U (en) | 2016-11-23 |
Family
ID=57304735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620423510.4U Expired - Fee Related CN205718938U (en) | 2016-05-11 | 2016-05-11 | Shaketalle test is measured the strain band of soil body layering strain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205718938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758363A (en) * | 2016-05-11 | 2016-07-13 | 西南交通大学 | Strain band for measuring soil layered strain in shaking table test |
-
2016
- 2016-05-11 CN CN201620423510.4U patent/CN205718938U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758363A (en) * | 2016-05-11 | 2016-07-13 | 西南交通大学 | Strain band for measuring soil layered strain in shaking table test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106525297B (en) | Miniature three-dimensional effective stress box and its method of testing | |
| CN104482913B (en) | Test device and test method used for testing three-dimensional strained condition | |
| CN100485314C (en) | Detecting system and method for curved surface vibration deformation | |
| CN101793020A (en) | Geogrid strain testing device and testing method thereof | |
| US9932022B2 (en) | Contact patch measurements during hydroplaning events | |
| CN101701859B (en) | Fiber grating monitoring system for power transmission line | |
| CN104729870B (en) | A kind of method of the existing prestress detection of concrete bridge structure | |
| CN101509816A (en) | Force sensor and air measurement method thereof | |
| CN103091226A (en) | Device and method for detecting porosity of saturated soil | |
| CN103558120B (en) | Measure method and the soil volume weight determination system of the soil weight | |
| CN205718938U (en) | Shaketalle test is measured the strain band of soil body layering strain | |
| CN110045085A (en) | A kind of agricultural environment detection device | |
| CN102494603A (en) | Distributed high-precision long-gauge-length carbon fiber strain test device and method | |
| CN108572194A (en) | A kind of assay method and device of plant leaf blade water guide degree and intrinsic water guide degree based on physiology resistance | |
| CN105758363A (en) | Strain band for measuring soil layered strain in shaking table test | |
| CN105758602A (en) | Truss girder bridge section buffeting force synchronous measurement method | |
| CN110375898A (en) | High-speed rail roadbed mechanical characteristic monitoring device and its application method, production method | |
| Liu et al. | Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement? | |
| CN202649479U (en) | Device for quickly arranging seismic detector on geotechnical medium surfaces and combination device thereof | |
| CN206300606U (en) | Suitable for the integrating device of geotextiles strain measurement | |
| CN205049281U (en) | Monitoring system of structure surface wind and rain load | |
| CN205373926U (en) | Soil pressure multiple spot distribution test sensor | |
| CN206479268U (en) | For loess and the forced three-dimensional soil pressure sensor of weak soil | |
| CN205537494U (en) | A transparent film sensor for structural health monitoring | |
| CN105300575A (en) | Smart material sensor for monitoring bituminous pavement crushing stress, and manufacture and application methods |
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 |
Granted publication date: 20161123 Termination date: 20170511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |