CN205748755U - Multichannel ground expansive force automatization test system - Google Patents
Multichannel ground expansive force automatization test system Download PDFInfo
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- CN205748755U CN205748755U CN201620683582.2U CN201620683582U CN205748755U CN 205748755 U CN205748755 U CN 205748755U CN 201620683582 U CN201620683582 U CN 201620683582U CN 205748755 U CN205748755 U CN 205748755U
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Abstract
The utility model discloses a kind of multichannel ground expansive force automatization test system, including the expansive force tester identical with one group of structure that central control system electrically connects, expansive force tester includes the deformation-resisting frame being made up of base, top board and two columns connecting both, S type force cell it is provided with below top board, screw lifting device it is provided with on base, screw lifting device push rod end is provided with pallet, is connected with shuttle between S type force cell and pallet；The signal output part of S type force cell electrically connects with analog-digital converter input, and AfD converter output electrically connects with the signal input part of PLC, and the signal output part of PLC electrically connects with central control system signal input part.This utility model simple in construction, accurate testing, easy to use, decrease the input of manpower and materials.Improve the efficiency of expansive force test, it is possible to complete the test of large batch of expansive force at short notice.
Description
Technical field
This utility model relates to Geotechnical Engineering field, especially relates to a kind of multichannel ground expansive force automatization and surveys
Test system.
Background technology
Swelled rock and soil is a class and the water generation physical-chemical reaction formed in nature geological process and causes own vol
The geologic body of change, is mainly made up of strongly hydrophilic clay mineral montmorillonite, illite, kaolinite etc., has imbibition soft
Change, the characteristic that dehydration shrinkage is dry and cracked.China's swelled rock and soil distribution ratio is wide, relates to national multiple provinces and cities, autonomous region, in recent years
National economic development fast development, the engineering construction such as water resources and hydropower construction, road and rail traffic, exploitation of mineral resources gets more and more
Ground is to swelled rock and soil regional development, swelled rock and soil the geotechnical engineering problems caused is day by day serious, and wherein expansive force is expansive rock
One of mechanical characteristic index that soil is important, the design of the engineering that it is regional to swelled rock and soil ground and swelled rock and soil, construction have
Great importance, the engineering accident in some swelled rock and soil area is how relevant with the expansive force of ground.
In ISRM and national standard, the suggestion method of testing to expansive force index is balance pressurization method, i.e.
In the becket of certain diameter, placing the sample close with internal diameter, sample can be permeable by porous disc, passes through pressue device
Carrying out precompressed, change pressure size and make whole process of the test axial deformation keep constant, the steady pressure recorded is expansive force.
Commonly used above-mentioned recommendation method in industry at present, its implementation process needs manually constantly pressurization and frequently numeration, and operating process is multiple
Miscellaneous and add charge values and be difficult to estimate, it is easily caused test result and produces deviation, automaticity is in urgent need to be improved.Part scientific research institutions are certainly
Dynamicization aspect is benefited our pursuits, and has promoted the development that expansive force is studied, but it is swollen not occur can be directly used for ground yet at present
The equipment of expansive force automatic test, typically use add on existing test equipment join test system, software after carry out ground expansion
Power is tested, but there is the problem that cost performance is too low and popularity rate is the highest.
Summary of the invention
This utility model provides a kind of multichannel ground expansive force automatization test system, it is therefore intended that solve to expand at present
The problem such as the experiment automatized degree of power is low, need to expend more manpower and time and test result is the most accurate.
For achieving the above object, this utility model can take following technical proposals:
Multichannel ground expansive force automatization test system described in the utility model, is electrically connected including with central control system
The expansive force tester that one group of structure connecing is identical, described expansive force tester includes being connected both by base, top board and two
Column constitute deformation-resisting frame, be provided with S type force cell below described top board, described base be provided with leading screw liter
Falling unit, described screw lifting device push rod end is provided with pallet, clamping between described S type force cell and described pallet
There is shuttle；The signal output part of described S type force cell electrically connects with analog-digital converter input, described analog digital conversion
Device outfan electrically connects with the signal input part of PLC, and the signal output part of described PLC controls with described central authorities
System signal input electrically connects.
Described expansive force tester is 1-64 platform.
The multichannel ground expansive force automatization test system that this utility model provides, simple in construction, accurate testing, use
Convenient, decrease the input of manpower and materials.By constant volume structure, high precision test and automatic technology three technology should
Being precisely controlled and automatically operating by, it is achieved that process of the test, using the teaching of the invention it is possible to provide displaying data in real-time/analysis curve, historical data
The multiple data such as inquiry, improve the efficiency of expansive force test, it is possible to complete the test of large batch of expansive force at short notice.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of expansive force tester in this utility model.
Fig. 3 is the schematic block circuit diagram of Fig. 1.
Detailed description of the invention
As Figure 1-3, multichannel ground expansive force automatization test system described in the utility model, including with central
Identical expansive force tester 2a, 2b, 2c of one group of structure of control system 1 electrical connection, in the present embodiment, expansive force tester is 3
Platform, actually used in, separate unit or multiple stage can be selected as required, maximum can be extended to 64 expansive force testers and realizes many groups
Experiment is carried out simultaneously, improves achievement comparison degree and work efficiency.
Described expansive force tester all includes by base 201, top board 202 and two column 203a, 203b connecting both
The deformation-resisting frame constituted, is provided with S type force cell 204 below top board 202, base 201 is provided with leading screw lifting dress
Putting 205, screw lifting device 205 push rod end is provided with pallet 206, clamping between S type force cell 204 and pallet 206
There is shuttle 207.
The bar section of stainless steel being chosen suitable specification by Mechanics Calculation forms above-mentioned deformation-resisting frame so that it is have certain model
Enclose interior tension and load performance, it is achieved the constant volume condition of requirement of experiment.Select S type force cell, in conjunction with acquisition controlling
System, it is achieved that expansive force data whole process Real-time Collection is followed the tracks of, it is possible to efficient, intelligence, accurately detection ground expansive force.Pass through
Multiple comparison test, finds to use screw lifting device to carry out lifting from bottom to top, and the indicating value of force transducer the most progressively increases
Adding, the disturbance to sample is relatively low, and the impact on force cell is minimum.It is above-mentioned that to arrange lifting type in constant volume frame structure pre-
Pressure device, and combine precision pressure gauge and carry out the mode of deformation test, overcome Manual pressurizing balance error, it is to avoid sample knot
The disturbance of structure, sensor is in stationary state dynamometry, it is to avoid the fluctuating error of sensor, its Stability Analysis of Structures and compact,
It is highly suitable for laboratory test and on-the-spot test.
The signal output part of S type force cell 204 electrically connects with analog-digital converter 205 input, analog-digital converter 208
Outfan electrically connects with the signal input part of PLC 209, and the signal output part of PLC 209 controls system with central authorities
1 signal input part of uniting electrically connects.Central control system 1 includes 485 communication receiving systems 101 and PC controller 102.
The performance of above-mentioned automated detection system, meets " Standard for test methods of earthworks " GB/T50123-1999, " geotechnique's examination
Test code " in (SL237-1999) and " Hydraulic and Hydro-Power Engineering rock test code " SL264-2001 to expansive force performances such as ground
The performance of main equipment requirement of test.According to frequency requirement to expansive force record in specification, choose that programming is simple, user
Just, design, the PLC scheme that installation workload is few.Can use T-shaped Programming with Pascal Language, PC configuration software uses MCGS to carry out configuration,
Thus the situation of change of real time record power, show deformation curve, and automatically judge the off-test time, automatically generate test result
Form, has filled up the blank of domestic ground expansive force automatic test.
Compared with original expansive force experimental facilities, this utility model has the advantage that
1) test result meansigma methods error of the present utility model is less, and standard deviation significantly reduces, and the depth of parallelism is preferable, gained
Test data stabilization, the most not impact of tested person personnel.
2) for same sample, if sample making course is different, even if the expansive force after the most stable is identical, it expands development
Process be likely to different.Former expansive force testing equipment uses balance pressurization method, can only provide the expansive force expanded after stablizing
Data；The recordable sample of this utility model expand development overall process, and show, recording real-time data.Therefore, this utility model
The advantageously scientific experimentation research in terms of sample dilatancy.
3) former expansive force testing equipment needs 2 testing crews more than 48 hours the most on duty in process of the test, and makes
When testing with this utility model, whole-course automation can be realized, decrease the input of manpower and materials, significantly reduce test work
Measure.
Claims (2)
1. a multichannel ground expansive force automatization test system, it is characterised in that: include electrically connecting with central control system
The identical expansive force tester of one group of structure, described expansive force tester includes being connected both by base, top board and two
The deformation-resisting frame that column is constituted, is provided with S type force cell below described top board, described base is provided with leading screw lifting
Device, described screw lifting device push rod end is provided with pallet, is connected with between described S type force cell and described pallet
Shuttle；The signal output part of described S type force cell electrically connects with analog-digital converter input, described analog-digital converter
Outfan electrically connects with the signal input part of PLC, and the signal output part of described PLC controls system with described central authorities
System signal input part electrical connection.
Multichannel ground expansive force automatization test system the most according to claim 1, it is characterised in that: described expansive force
Tester is 1-64 platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683582.2U CN205748755U (en) | 2016-07-01 | 2016-07-01 | Multichannel ground expansive force automatization test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620683582.2U CN205748755U (en) | 2016-07-01 | 2016-07-01 | Multichannel ground expansive force automatization test system |
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| CN205748755U true CN205748755U (en) | 2016-11-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017766A (en) * | 2016-07-01 | 2016-10-12 | 黄河勘测规划设计有限公司 | Multi-channel rock and soil expansion automatic test system |
| CN109883591A (en) * | 2019-03-06 | 2019-06-14 | 西南科技大学 | A kind of static measuring device and measurement method |
-
2016
- 2016-07-01 CN CN201620683582.2U patent/CN205748755U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017766A (en) * | 2016-07-01 | 2016-10-12 | 黄河勘测规划设计有限公司 | Multi-channel rock and soil expansion automatic test system |
| CN109883591A (en) * | 2019-03-06 | 2019-06-14 | 西南科技大学 | A kind of static measuring device and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee after: Yellow River Survey Planning and Design Research Institute Co., Ltd. Address before: 450003 Jinshui Road 109, Zhengzhou City, Henan Province Patentee before: Yellow River Engineering Consulting Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |