CN205374246U - Testing arrangement of solid sample microcrack rate of permeating water - Google Patents
Testing arrangement of solid sample microcrack rate of permeating water Download PDFInfo
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- CN205374246U CN205374246U CN201620034138.8U CN201620034138U CN205374246U CN 205374246 U CN205374246 U CN 205374246U CN 201620034138 U CN201620034138 U CN 201620034138U CN 205374246 U CN205374246 U CN 205374246U
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- solid sample
- storage barrel
- microcrack
- cover plate
- upper cover
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Abstract
The utility model relates to a testing arrangement of solid sample microcrack rate of permeating water, including test sleeve and clamping device, the test sleeve mainly includes a first store water section of thick bamboo, a second store water section of thick bamboo that sets up from top to bottom, and the inner wall of test sleeve is equipped with the rubber bed course, and solid sample is fixed in a first store water section of thick bamboo with between the second store water section of thick bamboo, clamping device includes upper cover plate, lower apron and reinforcing bar, the upper end of a first store water section of thick bamboo with the upper cover plate meets, the lower extreme of a second store water section of thick bamboo with the apron meets down, upper cover plate top installation glass pipe, the warning pipe is connected to the apron below down. The beneficial effects of the utility model are that, the device is sealed effectual, and lower to the requirement of solid sample shape, the equipment is convenient, and the test result degree of accuracy of the solid sample microcrack rate of permeating water that awaits measuring is higher.
Description
Technical field
This utility model relates to permeability rate technical field of measurement and test, particularly relates to the test device of a kind of solid sample microcrack permeability rate.
Background technology
Application number is 201320016123.5, patent name is the utility model patent of " water permeable rate test device ", for testing pervious concrete pavement permeability rate, in this device use procedure, need to select certain pervious concrete pavement being placed in by test device on this pervious concrete pavement to be tested to test, being tightly connected in base and pervious concrete pavement contact position to be tested with fluid sealant, sealing cannot ensure.
At present, existing to be used for testing the instrument of solid sample microcrack permeability rate, equipment flexibly more rare, often exist sealing poor, to the more high drawback of test sample shape need.
Summary of the invention
Technical problem to be solved in the utility model is, the test device of a kind of solid sample microcrack permeability rate is provided, this device good sealing effect, solid sample shape need is relatively low, easy to assembly, the test result accuracy of solid sample microcrack permeability rate to be measured is higher.
For achieving the above object, this utility model adopts following technical proposals:
A kind of test device of solid sample microcrack permeability rate, including test cartridge and clamping device, test cartridge mainly includes the first storage barrel setting up and down, the second storage barrel, the inwall of test cartridge is provided with rubber spacer, and solid sample is fixed between described first storage barrel and described second storage barrel；Clamping device includes upper cover plate, lower cover and reinforcing bar, the upper end of described first storage barrel connects with described upper cover plate, the lower end of described second storage barrel connects with described lower cover, described first storage barrel is connected and sealed each through rubber spacer and fluid sealant with described lower cover contact position with described upper cover plate, described second storage barrel, described upper cover plate glass tubing installed above, described lower cover is connected below overflow pipe, and described overflow pipe penetrates into the water in the second storage barrel for storing through solid sample microcrack.
The technical solution of the utility model also includes, and described upper cover plate offers water inlet, described lower cover offers outlet, water inlet for water filling in the first storage barrel, outlet then for test terminate after the water in the second storage barrel is discharged.
The technical solution of the utility model also includes, and fixes each through flange between described upper cover plate, described lower cover and described reinforcing bar.
The technical solution of the utility model also includes, and described glass tubing is provided with scale, and this scale is digital proportional chi.
The technical solution of the utility model also includes, and described first storage barrel, the diameter of described second storage barrel, shape are identical.
The technical solution of the utility model also includes, and the diameter of described solid sample is more than the diameter of test cartridge.
The technical solution of the utility model also includes, and described fixing sample is connected by sealant sealing is fixing with the contact position of described first storage barrel, described second storage barrel.
The testing procedure of solid sample permeability rate experiment includes:
1) first, the second storage barrel will be store full water；
2) vacuum solid sample after saturated is placed in above the second storage barrel, connects solid sample and the first storage barrel, the second storage barrel with sealant sealing, it is ensured that the sealing of contact position, wherein solid sample thickness is l；
3) water inlet is opened, water filling in the first storage barrel, close this water inlet after rising to certain altitude to glass tubing, now the liquid level value h in record glass tubing0, it is initial head；
4) t at set intervalsiRead the page height h in a glass tubingi, it is final head, all continues after each reading to add water in the first storage barrel, add to the liquid level in glass tubing and again reach h0；
5) repeated measure is repeatedly, until it reaches stable flow regime, when statistical result is declined by being stabilized to appearance, and when again there is analog result, it is believed that having reached stable flowing, result of calculation takes the meansigma methods of last 5 times.
In solid sample permeability test, water table gradient is less, and flow velocity is less, can regard laminar flow as.
Can obtain according to Darcy's law,
Q=kA (h/l) (1)
Assume that current are continuous print, then in glass tubing, the variable quantity of unit interval inner volume is,
Dv=A'(dh/dt) (2)
Simultaneous formula (1) and (2), obtain the permeability rate coefficient k=(A'l/At of solid samplei)ln(h0/hi)。
Wherein, Q is unit time infiltration capacity, and k is permeability rate coefficient, and A' is glass tubing cross-sectional area, unit m2；L is solid sample thickness, unit m；A is the cross-section of river, unit m2；h0For initial head, unit cm, hiFor final head, unit cm；tiFor interval, unit s.
Compared with prior art, the prominent substantive distinguishing features that this utility model has is progressive with significant, shows:
1, for ensureing the sealing of test device, with rubber spacer on test cartridge inwall, being rigidly connected between solid sample and test cartridge is made to become flexibly connecting, the contact position sealant sealing of solid sample and test cartridge, strengthen the sealing effectiveness of test device.
2, the requirement of solid sample shape to be tested is substantially reduced, it is adaptable to the test of many kinds of solids sample microcrack permeability rate.
3, this device is drawn materials and is easy to get, and simple and convenient assembly is practical.
4, solid sample is in permeability test, and water table gradient is less, and flow velocity is less, can regard laminar flow as, is suitable for Darcy's law, and theoretical foundation is abundant, it is ensured that the accuracy of solid sample permeability rate test result.
5, this device is the test device of solid material crack permeability rate, to testing the restricted little of material.
6, comparing existing equal-pressure method method of testing, this device operational approach is simply, easily grasp.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Wherein, 1, glass tubing；2, water inlet；3, upper cover plate；4, the first storage barrel；5, the second storage barrel；6, reinforcing bar；7, rubber spacer；8, solid sample；9, overflow pipe；10, flange；11, outlet；12, lower cover.
Detailed description of the invention
In order to the technical characterstic of this programme is clearly described, below in conjunction with drawings and Examples, this utility model is further described.
A kind of test device of solid sample microcrack permeability rate, as shown in the figure, including test cartridge and clamping device, test cartridge mainly includes first storage barrel the 4, second storage barrel 5 setting up and down, the inwall of test cartridge is provided with rubber spacer 7, and solid sample 8 is fixed between described first storage barrel 4 and described second storage barrel 5；Clamping device includes upper cover plate 3, lower cover 12 and reinforcing bar 6, the upper end of described first storage barrel 4 connects with described upper cover plate 3, the lower end of described second storage barrel 5 connects with described lower cover 12, described first storage barrel 4 is connected and sealed each through rubber spacer and fluid sealant with described lower cover 12 contact position with described upper cover plate, described second storage barrel 5, described upper cover plate 3 glass tubing 1 installed above, described lower cover 12 is connected below overflow pipe 9, and described overflow pipe 9 penetrates into the water in the second storage barrel for storing through solid sample microcrack.
Further, described upper cover plate 3 offers water inlet 2, described lower cover 12 offers outlet 11, water inlet 2 for water filling in the first storage barrel 4, outlet 11 then for test terminate after the water in the second storage barrel 5 is discharged.
Further, fix each through flange 10 between described upper cover plate 3, described lower cover 12 and described reinforcing bar 6.
Further, described glass tubing 1 is provided with scale, and this scale is digital proportional chi.
Further, described first storage barrel 4, the diameter of described second storage barrel 5, shape are identical.
Further, the diameter of described solid sample 8 is more than the diameter of test cartridge.
Further, described fixing sample is connected by sealant sealing is fixing with the contact position of described first storage barrel 4, described second storage barrel 5.
The testing procedure of solid sample 8 permeability rate experiment includes:
1) first, the second storage barrel 5 will be store full water；
2) vacuum solid sample 8 after saturated is placed in above the second storage barrel 5, connects solid sample 8 and first storage barrel the 4, second storage barrel 5 with sealant sealing, it is ensured that the sealing of contact position, wherein solid sample 8 thickness is l；
3) water inlet 2 is opened, water filling in the first storage barrel 4, close this water inlet 2 after rising to certain altitude to glass tubing 1, now the liquid level value h in record glass tubing 10, it is initial head；
4) t at set intervalsiRead the page height h in a glass tubing 1i, it is final head, all continues after each reading to add water in the first storage barrel 4, add to the liquid level in glass tubing 1 and again reach h0；
5) repeated measure is repeatedly, until it reaches stable flow regime, when statistical result is declined by being stabilized to appearance, and when again there is analog result, it is believed that having reached stable flowing, result of calculation takes the meansigma methods of last 5 times.
In solid sample 8 permeability test, water table gradient is less, and flow velocity is less, can regard laminar flow as.
Can obtain according to Darcy's law,
Q=kA (h/l) (1)
Assume that current are continuous print, then in glass tubing 1, the variable quantity of unit interval inner volume is,
Dv=A'(dh/dt) (2)
Simultaneous formula (1) and (2), obtain the permeability rate coefficient k=(A'l/At of solid sample 8i)ln(h0/hi)；
Wherein, Q is unit time infiltration capacity, and k is permeability rate coefficient, and A' is glass tubing 1 cross-sectional area, unit m2；L is solid sample 8 thickness, unit m；A is the cross-section of river, unit m2；h0For initial head, unit cm, hiFor final head, unit cm；tiFor interval, unit s.
This utility model can pass through existing techniques in realizing without the technical characteristic described, and does not repeat them here.Certainly; described above is not to restriction of the present utility model; this utility model is also not limited to the example above, the change done in essential scope of the present utility model of the art those of ordinary skill, remodeling, interpolation or replacing, also should belong to protection domain of the present utility model.
Claims (7)
1. the test device of a solid sample microcrack permeability rate, including test cartridge and clamping device, it is characterized in that, test cartridge mainly includes the first storage barrel setting up and down, the second storage barrel, the inwall of test cartridge is provided with rubber spacer, and solid sample is fixed between described first storage barrel and described second storage barrel；Clamping device includes upper cover plate, lower cover and reinforcing bar, and the upper end of described first storage barrel connects with described upper cover plate, and the lower end of described second storage barrel connects with described lower cover, and described upper cover plate glass tubing installed above, described lower cover is connected below overflow pipe.
2. the test device of a kind of solid sample microcrack permeability rate as claimed in claim 1, it is characterised in that offer water inlet on described upper cover plate, described lower cover offers outlet.
3. the test device of a kind of solid sample microcrack permeability rate as claimed in claim 1 or 2, it is characterised in that fix each through flange between described upper cover plate, described lower cover and described reinforcing bar.
4. the test device of a kind of solid sample microcrack permeability rate as claimed in claim 1, it is characterised in that described glass tubing is provided with scale.
5. the test device of a kind of solid sample microcrack permeability rate as claimed in claim 1, it is characterised in that described first storage barrel, the diameter of described second storage barrel, shape are identical.
6. the test device of a kind of solid sample microcrack permeability rate as claimed in claim 1, it is characterised in that the diameter of described solid sample is more than the diameter of test cartridge.
7. the test device of a kind of solid sample microcrack permeability rate as described in claim 1 or 5 or 6, it is characterised in that the contact position of described fixing sample and described first storage barrel, described second storage barrel is tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620034138.8U CN205374246U (en) | 2016-01-14 | 2016-01-14 | Testing arrangement of solid sample microcrack rate of permeating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620034138.8U CN205374246U (en) | 2016-01-14 | 2016-01-14 | Testing arrangement of solid sample microcrack rate of permeating water |
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| CN205374246U true CN205374246U (en) | 2016-07-06 |
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| CN201620034138.8U Expired - Fee Related CN205374246U (en) | 2016-01-14 | 2016-01-14 | Testing arrangement of solid sample microcrack rate of permeating water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527213A (en) * | 2016-01-14 | 2016-04-27 | 滨州学院 | Device and method for testing solid sample microfracture permeable rate |
-
2016
- 2016-01-14 CN CN201620034138.8U patent/CN205374246U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527213A (en) * | 2016-01-14 | 2016-04-27 | 滨州学院 | Device and method for testing solid sample microfracture permeable rate |
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| 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: 20160706 Termination date: 20170114 |