CN207396282U - Confining pressure sidewall rubber film sealing asphalt permeability coefficient tester can be added - Google Patents
Confining pressure sidewall rubber film sealing asphalt permeability coefficient tester can be added Download PDFInfo
- Publication number
- CN207396282U CN207396282U CN201721405487.7U CN201721405487U CN207396282U CN 207396282 U CN207396282 U CN 207396282U CN 201721405487 U CN201721405487 U CN 201721405487U CN 207396282 U CN207396282 U CN 207396282U
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- CN
- China
- Prior art keywords
- pedestal
- balancing gate
- gate pit
- footstock
- permeability coefficient
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model, which discloses one kind, can add confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, include balancing gate pit, pedestal, footstock, rubber membrane and upper cover plate；The pedestal and footstock seal the lower ending opening and upper end opening for covering balancing gate pit respectively, have lower cover on the pedestal, are provided with pressure valve and inlet valve on pedestal, flowing water Valve is provided on the footstock；The rubber membrane is hollow structure and is arranged in balancing gate pit, and the lower cover and upper cover plate cover the lower ending opening and upper end opening of rubber membrane respectively, and inner wall, lower cover and the upper cover plate of rubber membrane enclose the accommodating cavity for being configured to place core sample.The utility model can apply 100 200kPa confining pressures in balancing gate pit, using rubber membrane sealing, and by adjusting flow velocity size inside head difference adjustment core sample, using varying head or the infiltration coefficient of constant head test method test different aperture asphalt, seepage theory is rigorous, by substantial amounts of sample test, result of the test is accurately and reliably.
Description
Technical field
The utility model is related to field of test instrument technologies, and confining pressure sidewall rubber film sealing pitch can be added by referring in particular to one kind
Mixture permeability coefficient tester.
Background technology
《Highway pavement roadbed on-the-spot test regulation》Asphalt is measured in (JTG E60-2008) using water creep appearance to ooze
There are following problems for water coefficient test method：（1）Boundary condition is unknown：Since pavement structure itself is more complicated, current
Direction is indefinite with scope, and bituminous paving is generally in unsaturated state, and pedestal sealing is difficult, and experiment boundary condition cannot be accurate
Really define；（2）Primary condition is unknown：Rereading scale and time are specified only due to testing, and oozing before first time reading
Water does not provide that there may be large errors for result of the test.Therefore, the infiltration coefficient Cw of the experiment being capable of quantitative response asphalt road
Sweat performance, but theoretical foundation is not rigorous enough.
Utility model content
In view of this, in view of the existing deficiencies of the prior art, its main purpose is to provide one kind and can add encloses the utility model
Sidewall rubber film sealing asphalt permeability coefficient tester is pressed, the accuracy and reliability of result of the test can be improved.
To achieve the above object, the utility model is using following technical solution：
One kind can add confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, include balancing gate pit, pedestal,
Footstock, rubber membrane and upper cover plate；The balancing gate pit is hollow structure, and the pedestal and footstock seal the lower end for covering balancing gate pit respectively
Opening and upper end opening have lower cover on the pedestal, and pressure valve and inlet valve, pressure valve connection are provided on pedestal
In balancing gate pit, flowing water Valve is provided on the footstock；The rubber membrane hollow structure and to be arranged in balancing gate pit, the lower cover and
Upper cover plate covers the lower ending opening and upper end opening of rubber membrane respectively, and inner wall, lower cover and the upper cover plate of rubber membrane enclose configuration
Into for placing the accommodating cavity of core sample, foregoing inlet valve connects accommodating cavity with flowing water Valve.
Preferably, the balancing gate pit is stainless steel.
Preferably, equal sandwiched between the lower face of the balancing gate pit and pedestal and between the upper surface of balancing gate pit and footstock
There is sealing ring.
Preferably, it is fixedly connected between the pedestal and footstock by pre-tightening screw rod, balancing gate pit is clamped in pedestal and footstock
Between.
Preferably, the upper and lower end face of the core sample is both provided with permeable stone.
Preferably, the flowing water Valve on the footstock connects the water outlet of upper cover plate by flexible plastic tube.
The utility model has clear advantage and advantageous effect compared with prior art, specifically, by above-mentioned technology
Scheme is understood：
During the test, the utility model can apply 100-200kPa confining pressures in balancing gate pit, using rubber membrane sealing, and
By adjusting flow velocity size inside head difference adjustment core sample, different aperture pitch is tested using varying head or constant head test method
The infiltration coefficient of mixture, seepage theory is rigorous, and by substantial amounts of sample test, result of the test is accurately and reliably.
More clearly to illustrate the structure feature of the utility model and effect, come below in conjunction with the accompanying drawings with specific embodiment pair
The utility model is described in detail.
Description of the drawings
Fig. 1 is the schematic cross-section of the preferred embodiment of the utility model.
Attached drawing identifier declaration：
10th, balancing gate pit 20, pedestal
21st, lower cover 22, pressure valve
23rd, inlet valve 30, footstock
31st, flowing water Valve 40, rubber membrane
50th, upper cover plate 60, sealing ring
70th, screw rod 80, core sample are pre-tightened
91st, permeable stone 92, flexible plastic tube.
Specific embodiment
It refer to shown in Fig. 1, that show the concrete structures of the preferred embodiment of the utility model, include balancing gate pit
10th, pedestal 20, footstock 30, rubber membrane 40 and upper cover plate 50.
The balancing gate pit 10 is hollow structure, and in the present embodiment, the balancing gate pit 10 is stainless steel.
The pedestal 20 and footstock 30 seal the lower ending opening and upper end opening for covering balancing gate pit 10 respectively, have on the pedestal 20
There is lower cover 21, pressure valve 22 and inlet valve 23 are provided on pedestal 20, pressure valve 22 is connected in balancing gate pit 10, the top
Flowing water Valve 31 is provided on seat 30；In the present embodiment, between the lower face of the balancing gate pit 10 and pedestal 20 and pressure
Sealing ring 60 is folded between the upper surface of room 10 and footstock 30, also, passes through preload between the pedestal 20 and footstock 30
Screw rod 70 is fixedly connected, and balancing gate pit 10 is clamped between pedestal 20 and footstock 30.
The rubber membrane 40 is hollow structure and is arranged in balancing gate pit 10, and the lower cover 21 and upper cover plate 50 cover respectively
The lower ending opening and upper end opening of rubber membrane 40, inner wall, lower cover 21 and the upper cover plate 50 of rubber membrane 40, which enclose, to be configured to put
The accommodating cavity of core sample 80 is put, foregoing inlet valve 23 connects accommodating cavity with flowing water Valve 31.In the present embodiment, the core sample
80 upper and lower end face is both provided with permeable stone 91, also, the flowing water Valve 31 on the footstock 30 is connected by flexible plastic tube 92
The water outlet of upper cover plate 50.
The operation principle that the present embodiment is described in detail is as follows：
In use, core sample 80 is placed in accommodating cavity, core sample 80 is bituminous concrete sample, then, connects pressure valve 22
Pulsometer is connect, after test starts, enters into from inlet valve 23, then exports, testing from flowing water Valve 31 through core sample 80
During, 100-200kPa confining pressures are applied in balancing gate pit by pulsometer, and are adjusted by adjusting head difference inside core sample 80
Flow velocity size, using varying head or the infiltration coefficient of constant head test method test different aperture asphalt, seepage theory
Rigorous, by substantial amounts of sample test, result of the test is accurately and reliably.
The technical principle of the utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to scope of protection of the utility model cannot be construed in any way.Based on explanation herein,
Those skilled in the art would not require any inventive effort the other specific embodiments that can associate the utility model,
These modes are fallen within the scope of protection of the utility model.
Claims (6)
1. one kind can add confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, it is characterised in that：Include pressure
Power room, pedestal, footstock, rubber membrane and upper cover plate；The balancing gate pit is hollow structure, and the pedestal and footstock seal cover pressure respectively
The lower ending opening and upper end opening of power room have lower cover on the pedestal, pressure valve and inlet valve are provided on pedestal, press
In power valve connection balancing gate pit, flowing water Valve is provided on the footstock；The rubber membrane is hollow structure and is arranged in balancing gate pit,
The lower cover and upper cover plate cover the lower ending opening and upper end opening of rubber membrane respectively, the inner wall of rubber membrane, lower cover and on
Cover board encloses the accommodating cavity for being configured to place core sample, and foregoing inlet valve connects accommodating cavity with flowing water Valve.
2. confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, feature can be added as described in claim 1
It is：The balancing gate pit is stainless steel.
3. confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, feature can be added as described in claim 1
It is：Sealing ring is folded between the lower face of the balancing gate pit and pedestal and between the upper surface of balancing gate pit and footstock.
4. confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, feature can be added as described in claim 1
It is：It is fixedly connected between the pedestal and footstock by pre-tightening screw rod, balancing gate pit is clamped between pedestal and footstock.
5. confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, feature can be added as described in claim 1
It is：The upper and lower end face of the core sample is both provided with permeable stone.
6. confining pressure sidewall rubber film sealing asphalt permeability coefficient tester, feature can be added as described in claim 1
It is：Flowing water Valve on the footstock connects the water outlet of upper cover plate by flexible plastic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405487.7U CN207396282U (en) | 2017-10-29 | 2017-10-29 | Confining pressure sidewall rubber film sealing asphalt permeability coefficient tester can be added |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721405487.7U CN207396282U (en) | 2017-10-29 | 2017-10-29 | Confining pressure sidewall rubber film sealing asphalt permeability coefficient tester can be added |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396282U true CN207396282U (en) | 2018-05-22 |
Family
ID=62326740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721405487.7U Expired - Fee Related CN207396282U (en) | 2017-10-29 | 2017-10-29 | Confining pressure sidewall rubber film sealing asphalt permeability coefficient tester can be added |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207396282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932303A (en) * | 2019-04-29 | 2019-06-25 | 哈尔滨工业大学 | A kind of test device of the multidirectional connectivity gap rate of asphalt |
| CN114858663A (en) * | 2022-05-31 | 2022-08-05 | 中国矿业大学 | Seepage simulation method for dynamically deformed soil body |
-
2017
- 2017-10-29 CN CN201721405487.7U patent/CN207396282U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932303A (en) * | 2019-04-29 | 2019-06-25 | 哈尔滨工业大学 | A kind of test device of the multidirectional connectivity gap rate of asphalt |
| CN114858663A (en) * | 2022-05-31 | 2022-08-05 | 中国矿业大学 | Seepage simulation method for dynamically deformed soil body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20191029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |