CN204346869U - Modifying device measured by soil cement permeability test water percolating capacity - Google Patents
Modifying device measured by soil cement permeability test water percolating capacity Download PDFInfo
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- CN204346869U CN204346869U CN201520022323.0U CN201520022323U CN204346869U CN 204346869 U CN204346869 U CN 204346869U CN 201520022323 U CN201520022323 U CN 201520022323U CN 204346869 U CN204346869 U CN 204346869U
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- soil cement
- percolating capacity
- water percolating
- graduated cylinder
- permeability test
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a kind of soil cement permeability test water percolating capacity and measure modifying device, be made up of graduated cylinder, plexiglass cover and infiltration mould; After infiltration mould and plexiglass cover, graduated cylinder are threaded connection, form whole soil cement permeability test water percolating capacity and measure modifying device, can guarantee that test specimen is in state of saturation in process of osmosis, and top graduated cylinder can change by real-time monitored test specimen water percolating capacity, decreases water loss and makes test findings more accurate.
Description
Technical field
The utility model relates generally to a kind of soil cement permeability test water percolating capacity and measures modifying device, belongs to experimental provision technical field.
Background technology
Along with the economic steady-state growth of China, the scale of investment of capital construction is increasing, soil cement is conveniently drawn materials due to it, cost-saving, cost is lower compared to concrete, and anti-permeability performance is good, one of civil engineering material becoming widespread use in engineering field, current many scholars have carried out lot of experiments research to the anti-permeability performance of soil cement, and the experimental provision wherein adopted comprises soil cement permeameter, quiet three axles etc.When employing soil cement permeameter carries out being difficult to draw experimental data accurately when seepage flow is less by general measuring method in soil cement permeability test process.Carry out in soil cement permeability test process at present, test specimen water percolating capacity is flowed out by conventional die trial sidewall duct and flows in buret, and this conventional measurement devices has following shortcoming.
1, when in experimentation, test specimen water percolating capacity is less, in current passing hole channel inflow buret, very difficult causing cannot carry out water percolating capacity measurement.
2, there is the residual stream of part water on circulation footpath when current after test specimen infiltration flow via a conduit in buret and with part water percolating capacity on conduit and buret sidewall, cause experimental data inaccurate.
3, due to current flowing buret, to have suffered process very slow, and conventional water yield device of surveying cannot complete the water percolating capacity of test specimen under corresponding time of penetration condition and measures.
Summary of the invention
Goal of the invention:
The utility model proposes a kind of soil cement permeability test water percolating capacity and measure modifying device, its objective is the accuracy ensureing experimental data in order to improve original water percolating capacity measurement mechanism.
Technical scheme:
Modifying device measured by a kind of soil cement permeability test water percolating capacity, it is characterized in that: be made up of graduated cylinder, plexiglass cover and infiltration mould; Plexiglass cover inside has internal thread, and the top of infiltration mould has external thread, and plexiglass cover is threaded with external thread by internal thread with infiltration mould upstream; Have threaded passage in center, plexiglass cover top, the bottom of graduated cylinder has external screw thread, and plexiglass cover is connected by threaded passage and external screw thread with graduated cylinder.
The thickness of machine glass cover is 3mm, is highly 2cm.
The external thread height of infiltration mould upstream is 3mm.
Infiltration mold bottom has the external screw thread of mould.
Advantage and effect:
The utility model has the following advantages and beneficial effect:
Plexiglass cover top is provided with threaded passage and can be threaded connection with the buret with the screw thread that matches, plexiglass cover inside is threaded, can be threaded connection with screwed infiltration mould, ensure that the reliability of connection, by this device can ensure test specimen in experimentation test specimen keep state of saturation and by top buret can real-time monitored to test specimen water percolating capacity, water percolating capacity loss can be reduced, improve the degree of accuracy of test.
accompanying drawing illustrates:
Fig. 1 is infiltration die profile;
Fig. 2 is Fig. 1 outboard profile;
Fig. 3 is Fig. 1 vertical view;
Fig. 4 is the sectional view of plexiglass cover;
Fig. 5 is graduated cylinder structural representation;
Fig. 6 is the utility model overall schematic.
Description of reference numerals:
1. graduated cylinder; 2. plexiglass cover; 3. permeate mould; 4. internal thread; 5. external thread; 6. threaded passage; 7. external screw thread; 8. the external screw thread of mould.
embodiment:
The utility model proposes a kind of soil cement permeability test water percolating capacity and measure modifying device, as shown in Fig. 1-Fig. 6, be made up of graduated cylinder 1, plexiglass cover 2 and infiltration mould 3; Plexiglass cover 2 inside has internal thread 4, and the top of infiltration mould 3 has external thread 5, and plexiglass cover 2 is threaded with external thread 5 by internal thread 4 with infiltration mould 3 top, ensure that the reliability of connection; Have threaded passage 6 in center, plexiglass cover 2 top, the bottom of graduated cylinder 1 has external screw thread 7, and plexiglass cover 2 is threaded by threaded passage 6 and external screw thread 7 with graduated cylinder 1.
The external thread 5 on infiltration mould 3 top is highly 3mm.This infiltration mould comparison with standard infiltration mould is without side direction duct, and infiltration mould, plexiglass cover, graduated cylinder three is threaded connection becomes integral experiment device, and top graduated cylinder is for measuring the seepage flow of test specimen.
The thickness of plexiglass cover 2 is 3mm, is highly 2cm.Plexiglass cover 2 inside is with internal thread 4, mould 3 can be permeated with the soil cement with external thread 5 to be threaded connection, plexiglass cover is threaded connection with externally threaded infiltration mould the reliability that ensure that and be connected, and can observe seepage flow situation in permeability test process by transparent organic glass.The height of plexiglass cover is set to 2cm and can ensures that in experimentation, test piece upper part has sufficient space for filling water, ensures that test specimen keeps state of saturation in experimentation.Thickness is set to 3mm can be effectively cost-saving.
Threaded passage 6 is provided with in the middle of plexiglass cover, can ensure that the pressure equal permeability test that do not hinder in inside and outside carries out, the access of plexiglass cover 2 top is with the graduated cylinder 1 of external screw thread 7, be threaded connection, ensure that graduated cylinder is in horizontality, the seepage flow of test specimen can be observed when test specimen is saturated by cylinder scale constantly, be conducive to observing, be convenient to measure, water percolating capacity loss can be reduced simultaneously, effectively improve the degree of accuracy of test.
There is the external screw thread 8 of mould, for being connected with soil cement permeability test instrument bottom infiltration mould 3.
During utility model works:
First cement-stabilized soil sample sealing experiment is carried out, adopt paraffin as cement-stabilized soil sample encapsulant, by heating, solid paraffin is melted in metal material pan simultaneously by screwed infiltration mold heated, temperature controls at 75 degrees centigrade, then within one week, suitable depth paraffin is filled in cement-stabilized soil sample side, mould is taken out after paraffin condenses a period of time, (note in the cement-stabilized soil sample press-in die after sealing wax: the excessive cement-stabilized soil sample that causes that do not exert a force in process of press in damages), thoroughly to contact with mould until test specimen and after temperature return to normal temperature, remove the unnecessary paraffin of surface of test piece, then plexiglass cover is installed on infiltration mould upstream, whole device is installed on soil cement infiltration instrument, screwed graduated cylinder is arranged on organic glass cover, inject enough clear water in vector tube and ensure plexiglass cover inner filling water and graduated cylinder has a certain amount of water, to stablize under 15 minutes postscripts now liquid scale in graduated cylinder, then soil cement permeability test is carried out in pressurization step by step, level change record data in real-time monitored graduated cylinder in experimentation.
Conclusion:
The utility model, measurement effect is good, rational in infrastructure, easy and simple to handle, practical.
Claims (4)
1. a modifying device measured by soil cement permeability test water percolating capacity, it is characterized in that: be made up of graduated cylinder (1), plexiglass cover (2) and infiltration mould (3); Plexiglass cover (2) inside has internal thread (4), and the top of infiltration mould (3) has external thread (5), and plexiglass cover (2) is threaded with external thread (5) by internal thread (4) with infiltration mould (3) top; Have threaded passage (6) in plexiglass cover (2) center, top, the bottom of graduated cylinder (1) has external screw thread (7), and plexiglass cover (2) is threaded by threaded passage (6) and external screw thread (7) with graduated cylinder (1).
2. modifying device measured by soil cement permeability test water percolating capacity according to claim 1, it is characterized in that: the thickness of machine glass cover (2) is 3mm, is highly 2cm.
3. modifying device measured by soil cement permeability test water percolating capacity according to claim 1, it is characterized in that: the external thread (5) on infiltration mould (3) top is highly 3mm.
4. modifying device measured by soil cement permeability test water percolating capacity according to claim 1, it is characterized in that: infiltration mould (3) bottom has the external screw thread of mould (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022323.0U CN204346869U (en) | 2015-01-14 | 2015-01-14 | Modifying device measured by soil cement permeability test water percolating capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022323.0U CN204346869U (en) | 2015-01-14 | 2015-01-14 | Modifying device measured by soil cement permeability test water percolating capacity |
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| Publication Number | Publication Date |
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| CN204346869U true CN204346869U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520022323.0U Expired - Fee Related CN204346869U (en) | 2015-01-14 | 2015-01-14 | Modifying device measured by soil cement permeability test water percolating capacity |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644838A (en) * | 2016-09-26 | 2017-05-10 | 东北师范大学 | Accurate measurement method of saturated water conductivity of peat |
| CN107449710A (en) * | 2017-08-17 | 2017-12-08 | 华能澜沧江水电股份有限公司 | A kind of experimental rig for measuring rockfill materials water absorption under the conditions of different pressures |
| CN108444892A (en) * | 2018-05-20 | 2018-08-24 | 郑州大学 | A kind of impervious sample production method of the soil cement of simplicity |
| CN110879287A (en) * | 2019-12-17 | 2020-03-13 | 天津大学 | Hull-Shore sheet testing apparatus with adjustable plate spacing |
-
2015
- 2015-01-14 CN CN201520022323.0U patent/CN204346869U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644838A (en) * | 2016-09-26 | 2017-05-10 | 东北师范大学 | Accurate measurement method of saturated water conductivity of peat |
| CN107449710A (en) * | 2017-08-17 | 2017-12-08 | 华能澜沧江水电股份有限公司 | A kind of experimental rig for measuring rockfill materials water absorption under the conditions of different pressures |
| CN107449710B (en) * | 2017-08-17 | 2019-10-01 | 华能澜沧江水电股份有限公司 | A kind of experimental rig measuring rockfill materials water absorption under the conditions of different pressures |
| CN108444892A (en) * | 2018-05-20 | 2018-08-24 | 郑州大学 | A kind of impervious sample production method of the soil cement of simplicity |
| CN110879287A (en) * | 2019-12-17 | 2020-03-13 | 天津大学 | Hull-Shore sheet testing apparatus with adjustable plate spacing |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20150520 Termination date: 20170114 |