CN2727731Y - Multifunctional road material infiltration gauge - Google Patents
Multifunctional road material infiltration gauge Download PDFInfo
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- CN2727731Y CN2727731Y CN 200420007652 CN200420007652U CN2727731Y CN 2727731 Y CN2727731 Y CN 2727731Y CN 200420007652 CN200420007652 CN 200420007652 CN 200420007652 U CN200420007652 U CN 200420007652U CN 2727731 Y CN2727731 Y CN 2727731Y
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Abstract
The utility model relates to a multifunctional road material infiltration gauge. The utility model comprises a sleeve barrel, a sleeve barrel cover, a water tank, a perforated plate, a gasbag, a micro differential manometer, a connection pipe, a vacuum pump, a vacuum meter, an air pipe, a water pump, a water inlet pipe, a water drain pipe, and valves which are respectively arranged on the each pipelines. The perforated plate is arranged at the inner of the sleeve barrel, and the gasbag is positioned on the perforated plate. The micro differential manometer is arranged at the outside of the lateral wall of the sleeve barrel by the connection pipe, and the valve is arranged at the connecting position. The water tank and the water pump is connected with the both ends of the sleeve barrel by the water pipe, and the valve is arranged at the connecting position. The vacuum pump, the valve and the vacuum meter are connected with the sleeve barrel by the air pipe, and the valve is arranged at the connecting position. The utility model has permeability coefficient measuring, effective porosity, water scouring affording performance, rational structure design, high test result precision, small error and high efficiency.
Description
Technical field
The utility model relates to a kind of penetration test instrument, especially relates to a kind of all-purpose road material penetration test instrument.
Background technology
At present, the research of permeameter and use mainly concentrate on the mensuration of native infiltration coefficient, measure the permeameter that the indoor infiltration coefficient technical elements of road mushy material does not also have the complete moulding of a cover and be used in.Mainly there is following problem in instrument in the past: 1, do not have effective seal between test specimen and the sleeve wall, adopt wax, latex and greasy filth etc. to seal mostly, water is easy to from slit flow mistake wherein, increase test error, and running program is loaded down with trivial details.2, adopt common differential pressure measurement apparatus measures, error is bigger.3, in carrying out the permeability test process, there is not effective method that the test specimen bubble is discharged, influence test findings.
Summary of the invention
The purpose of this utility model provides a kind of all-purpose road material penetration test instrument, and it can measure indoor infiltration coefficient, effective drainage porosity and the abrasion resistance energy of mushy material.
The technical solution of the utility model is a kind of all-purpose road material penetration test instrument of design, it comprises: sleeve, socket cover and water tank, it is characterized in that it also comprises: porous plate, air bag, little differential pressure gauge, connecting pipe, vacuum pump, vacuum meter, tracheae, suction pump, water inlet pipe, rising pipe and be installed on valve on each pipeline; Described porous plate is arranged in the sleeve, and described air bag is placed on the porous plate; Described little differential pressure gauge is outside connecting pipe is arranged on sleeve lateral wall, and the junction is provided with valve; Described suction pump and water tank are communicated with the sleeve two ends through water inlet pipe, and the junction is provided with valve; Described vacuum pump, valve, vacuum meter are communicated with sleeve through tracheae, and the junction is provided with valve.
The utility model utilizes air bag that the pressure of test specimen wall and sleeve wall is sealed, and has overcome the deficiency that gap closing does not sternly leak between existing permeameter test specimen and the sleeve wall, and effect is fine, and easy and simple to handle; Use the little differential pressure gauge of high-precision digital display, to reduce the error of the pressure differential between the piezometric tube; Before giving the test specimen water filling, adopt vacuum pump that it is vacuumized, can fully discharge the bubble in the test specimen.Utilize pressure vessel and corresponding pipeline to force porosint under the flowing pressure of closed loop cycle, to carry out anti-washout test.This instrument can be measured infiltration coefficient, effective porosity and abrasion resistance energy, reasonable in design, and the stringency of test height, error is little, efficient is high.
Description of drawings
Fig. 1 is the structural drawing of all-purpose road material penetration test instrument;
Fig. 2 is the structural representation of air bag, and a is a front view, and b is a vertical view.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
With reference to Fig. 1, all-purpose road material penetration test instrument of the present utility model comprises: sleeve 13, socket cover 7, water tank 1, porous plate 8, air bag 11, little differential pressure gauge 3,4, vacuum pump 14, vacuum meter 15, tracheae 17, suction pump 16, water inlet pipe 2, rising pipe 9 and be installed on valve on each pipeline; Porous plate 8 is arranged in the sleeve 13, and air bag 11 is placed on the porous plate 8; Little differential pressure gauge 3,4 is outside connecting pipe 20 is arranged on sleeve 13 sidewalls, and the junction is provided with valve 18; Suction pump 16 and water tank 1 are communicated with sleeve 13 two ends through water inlet pipe 2, and the junction is provided with valve 12; Vacuum pump 14, valve 19, vacuum meter 15 are communicated with sleeve 13 through tracheae 17, and the junction is provided with valve 19.
With reference to Fig. 2, described air bag 11 is air bags, is the thin wall cylindrical shape; Sidewall is provided with a plurality of through holes 21.
Wherein, water tank 1:, have can make the water surface remain at conplane water tank in order in process of the test, to remain constant head.Water tank can adopt organic glass to make, and helps constantly observing water surface elevation, is convenient to control.
Sleeve 13: adopt the monoblock cast of sand mo(u)ld cast iron to form.Leakproofness, intensity are all fine.Because the test specimen diameter of this test institute moulding is 15cm, so sleeve diameter is fabricated to 20cm.
Socket cover 7: mainly play sealing and be connected effect.
Little differential pressure gauge 3,4: the technical parameter that dispatches from the factory will be strict with and control, and D.C. regulated power supply is strict, to reduce the test error that voltage instability brings.
Porous plate 8: be used for supporting test specimen and reduce into water water currents.
Air bag 11: the pressure that utilizes inflation to produce comes the space between sealed test piece wall and the sleeve, and anti-sealing passes through.Reach internal diameter 150mm after the inflation, external diameter 180mm.Air bag adopts elastomeric material, uses the particular manufacturing craft manufacturing to form, and does not exist sidewall to leak.
Vacuum pump 16: before in sleeve, advancing to discharge water, will vacuumize, reduce the CAB influence in the hole to it.
Connecting pipe: a kind of is water inlet pipe 2, is used for connecting water tank and sleeve, adopts plexi-glass tubular, helps the transmission of pressure, reduces the pressure loss; A kind of tracheae 17 is used for coupling sleeve and vacuum pump, adopts to vacuumize the special-purpose pipeline that can bear certain negative pressure; A kind of rising pipe 9 is used for the beaker 5 that coupling sleeve and water receiving use; A kind of is connecting pipe 20, is used for coupling sleeve and little differential pressure gauge, adopts rubber tube, and internal diameter is greater than 10mm, helps the transmission of pressure, reduces the pressure loss.
In the such scheme, be provided with shaking table 10 below the sleeve 13, only when specimen molding, use.
Operation steps of the present utility model is as follows:
(1) measure the concrete operations step of effective drainage porosity with permeameter:
(1) preliminary work: check according to the permeameter structural drawing whether various elements and instrument connect, guarantee the leakproofness of total system;
(2) the water tank water filling is to constant position and keep constant head;
(3) the weigh with scale weight of test specimen is with the height of vernier caliper measurement test specimen;
(4) test specimen is put into sleeve, then the socket cover fixing seal;
(5) open the vacuum pump evacuating valve, close other all valves, start vacuum pump vacuumizing in the sleeve;
(6) vacuumize finish after, close evacuating valve, open inlet valve, treat that test specimen is fully intake after, open flowing water Valve, the weight of test specimen in water weighs with scale.
(2) measure the concrete operations step of infiltration coefficient with permeameter:
(1) preliminary work: check whether various elements and instrument connect, guarantee the leakproofness of total system;
(2) the water tank water filling is to constant position and keep constant head;
(3) air bag fixedly is placed in the sleeve, puts into test specimen, arrive certain air pressure to airbag aeration, then the socket cover fixing seal;
(4) open the vacuum pump evacuating valve, close other all valves, start vacuum pump vacuumizing in the sleeve;
(5) vacuumize finish after, close evacuating valve, open inlet valve, treat that test specimen is fully intake after, open flowing water Valve, allow test specimen be in the infiltration state;
(6) wait for a few minutes, treat waterflow stabilization after, regulate inlet valve, read and write down the differential pressure gauge reading;
(7) access water and the timing that seepage flow goes out at water delivering orifice with container, weigh with scale record data then;
(8) measure the temperature of water, and keep a record;
(9) repeat (6), (7), (8) step totally 4 times, read and write down test figure;
(10) battery of tests finishes, and takes out test specimen according to opposite program, changes new test specimen and carries out the next round test.
(3) with permeameter measure abrasion resistance can the concrete operations step:
(1) preliminary work: check according to the permeameter structural drawing whether various elements and instrument connect;
(2) switch valve makes pressure vessel and suction pump be communicated with, the test specimen of packing into, and water is filled container;
(3) build loam cake, and start suction pump make water begin the circulation;
(4) after circulation one hour, the pump that stops pumping takes out test specimen, carries out compressive strength determination.The loss of test specimen is that test specimen anti-washed away loss.
Claims (2)
1, a kind of all-purpose road material penetration test instrument, it comprises: sleeve, socket cover and water tank, it is characterized in that it also comprises: porous plate, air bag, little differential pressure gauge, connecting pipe, vacuum pump, vacuum meter, tracheae, suction pump, water inlet pipe, rising pipe and be installed on valve on each pipeline; Described porous plate is arranged in the sleeve, and described air bag is placed on the porous plate; Described little differential pressure gauge is outside connecting pipe is arranged on sleeve lateral wall, and the junction is provided with valve; Described suction pump and water tank are communicated with the sleeve two ends through water inlet pipe, and the junction is provided with valve; Described vacuum pump, valve, vacuum meter are communicated with sleeve through tracheae, and the junction is provided with valve.
2, all-purpose road material penetration test instrument according to claim 1 is characterized in that described air bag is an air bag, is the thin wall cylindrical shape; Sidewall is provided with a plurality of through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007652 CN2727731Y (en) | 2004-03-31 | 2004-03-31 | Multifunctional road material infiltration gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420007652 CN2727731Y (en) | 2004-03-31 | 2004-03-31 | Multifunctional road material infiltration gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727731Y true CN2727731Y (en) | 2005-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420007652 Expired - Fee Related CN2727731Y (en) | 2004-03-31 | 2004-03-31 | Multifunctional road material infiltration gauge |
Country Status (1)
| Country | Link |
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| CN (1) | CN2727731Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344515B (en) * | 2008-08-29 | 2011-10-05 | 成都理工大学 | Permeability coefficient determinator |
| CN104458529A (en) * | 2014-11-21 | 2015-03-25 | 东华理工大学 | Multifunctional indoor rain water infiltration simulating experiment device for unsaturated soil |
| CN105203443A (en) * | 2015-10-28 | 2015-12-30 | 扬州大学 | Penetration coefficient determination apparatus for permeable asphalt concrete track board test piece, and test method thereof |
| CN106644887A (en) * | 2016-12-30 | 2017-05-10 | 河海大学 | Method for determining void saturation of large-void asphalt mixture in seepage state |
| CN106706501A (en) * | 2017-02-22 | 2017-05-24 | 中国水利水电科学研究院 | Expansive soil saturated water conduction coefficient determination system and method |
| CN106908369A (en) * | 2017-03-21 | 2017-06-30 | 河海大学 | Measure the device and operating method of rubble high polymer composite material pore characteristic |
| CN107991211A (en) * | 2017-10-20 | 2018-05-04 | 四川大学 | A kind of irregular sample coefficient of permeability tester of difference hydraulic condition and test method |
| CN110441218A (en) * | 2019-08-30 | 2019-11-12 | 海南方能测试技术有限公司 | A kind of concrete permeable detection device and detection method |
| CN112730199A (en) * | 2021-02-01 | 2021-04-30 | 温州市市政工程建设开发公司 | Water permeability detection device and method for permeable asphalt concrete |
-
2004
- 2004-03-31 CN CN 200420007652 patent/CN2727731Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344515B (en) * | 2008-08-29 | 2011-10-05 | 成都理工大学 | Permeability coefficient determinator |
| CN104458529A (en) * | 2014-11-21 | 2015-03-25 | 东华理工大学 | Multifunctional indoor rain water infiltration simulating experiment device for unsaturated soil |
| CN104458529B (en) * | 2014-11-21 | 2018-02-16 | 东华理工大学 | Unsaturated soil rain infiltration simulation test device in a kind of multifunctional room |
| CN105203443A (en) * | 2015-10-28 | 2015-12-30 | 扬州大学 | Penetration coefficient determination apparatus for permeable asphalt concrete track board test piece, and test method thereof |
| CN106644887A (en) * | 2016-12-30 | 2017-05-10 | 河海大学 | Method for determining void saturation of large-void asphalt mixture in seepage state |
| CN106644887B (en) * | 2016-12-30 | 2019-04-16 | 河海大学 | The determination method of Asphalt mix for open-graded friction course gap saturation degree under seepage state |
| CN106706501A (en) * | 2017-02-22 | 2017-05-24 | 中国水利水电科学研究院 | Expansive soil saturated water conduction coefficient determination system and method |
| CN106706501B (en) * | 2017-02-22 | 2019-03-01 | 中国水利水电科学研究院 | A kind of measurement system and method for dilative soil saturation coefficient of transmissibility |
| CN106908369A (en) * | 2017-03-21 | 2017-06-30 | 河海大学 | Measure the device and operating method of rubble high polymer composite material pore characteristic |
| CN107991211A (en) * | 2017-10-20 | 2018-05-04 | 四川大学 | A kind of irregular sample coefficient of permeability tester of difference hydraulic condition and test method |
| CN110441218A (en) * | 2019-08-30 | 2019-11-12 | 海南方能测试技术有限公司 | A kind of concrete permeable detection device and detection method |
| CN112730199A (en) * | 2021-02-01 | 2021-04-30 | 温州市市政工程建设开发公司 | Water permeability detection device and method for permeable asphalt concrete |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |