CN208999271U - A kind of test device of pervious concrete blocking test infiltration coefficient - Google Patents
A kind of test device of pervious concrete blocking test infiltration coefficient Download PDFInfo
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- CN208999271U CN208999271U CN201821856103.8U CN201821856103U CN208999271U CN 208999271 U CN208999271 U CN 208999271U CN 201821856103 U CN201821856103 U CN 201821856103U CN 208999271 U CN208999271 U CN 208999271U
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Abstract
The utility model discloses a kind of test devices of pervious concrete blocking test infiltration coefficient, including test box, the setting of case mouth moveable sand mechanism and spray head at the top of test box, spray head are connect by pipeline with water pump, the placement area of the intracorporal middle part setting pervious concrete test specimen of test box；For the setting of pervious concrete test specimen on placing area, the test box body wall of pervious concrete test piece upper part is equipped with overflow port, and overflow port is connect by connecting tube with water tank；Water pump is connect with water tank；The test box body wall of pervious concrete test piece lower part is equipped with discharge outlet, and discharge outlet is connect by drainpipe with water tank, and drainpipe is equipped with ultrasonic flow velocity sensors and drain valve；The upper and lower surface of pervious concrete test specimen is respectively equipped with pressure sensor, and pressure sensor and ultrasonic flow velocity sensors are connect with data collection system, and collected data are uploaded to computer by data collection system.The device is easy to operate, rationally reliable, and test result precision is high.
Description
Technical field
The utility model relates to infiltration coefficient the field of test technology, specifically a kind of pervious concrete blocking test infiltration system
Several test devices.
Background technique
Porous pavement (Pervious pavement) just refers to the road surface with water penetration, is using single or discontinuous
Graded aggregate, bonding agent, water, additive etc. are in proportion by the road surface with interconnected pore of specific moulding process production.
Since porous pavement has permeable, water conservation, reduces rainy day runoff, controls flood and drains flooded fields, purifies water, sqouynd absorption lowering noise, alleviates Urban Thermal
Many advantages, such as island effect, therefore porous pavement is widely used in urban road major trunk roads, square, cell, park, stops in recent years
In the urban construction such as parking lot, porous pavement typically contains the perforation hole of 15-25%, and permeable amount can generally reach 200L/
(m2.min).Pervious concrete pavement is in use due to rainfall entering road surface because of solid dust or organic fine particle
Structure causes to block and lose water permeable ability, and the infiltration coefficient of porous pavement is surveyed in the blocking test research of porous pavement at present
Fixed accuracy and tamper blocking simulation test need to be advanced optimized, and the accuracy needs of measurement result further increase.
Therefore, the test device that need to design a kind of pervious concrete blocking test infiltration coefficient keeps test result accurate and realizes conveniently.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a kind of pervious concrete blocking test infiltration
The test device of saturating coefficient, the device is easy to operate, rationally reliable, and test result precision is high.
Realizing the technical solution of the utility model aim is:
A kind of test device of pervious concrete blocking test infiltration coefficient, including test box, the case mouth at the top of test box
Setting moveable sand mechanism and spray head, spray head are connect by pipeline with water pump, and the intracorporal middle part setting of test box is permeable mixed
The placement area of solidifying soil test specimen；The setting of pervious concrete test specimen is on placing area, the test box body wall of pervious concrete test piece upper part
It is equipped with overflow port, overflow port is connect by connecting tube with water tank；Water pump is connect with water tank；Pervious concrete test piece lower part
Test box body wall be equipped with discharge outlet, discharge outlet is connect by drainpipe with water tank, and drainpipe is equipped with ultrasonic flow-velocity
Sensor and drain valve；The upper and lower surface of pervious concrete test specimen is respectively equipped with pressure sensor, pressure sensor and ultrasonic wave
Flow sensor is connect with data collection system, and collected data are uploaded to computer by data collection system.
The pervious concrete test specimen is located in the intracorporal placement area of test box by air sac sealing, and air bag is equipped with
Inflating port, it is closely coupled with the pervious concrete test specimen surrounding of test after air bag inflation, prevent side wall seepage flow；Pervious concrete examination
Part bottom is additionally provided with supporting network, is used to support pervious concrete test specimen.
The bottom plate of the test box, bottom is detachable, and sealing ring, connection lock are arranged on bottom plate, test box bottom
Cabinet is externally provided with buckle, and bottom edge is fastened by sealing ring and buckle, and to guarantee that its connection sealing is water-tight, it is stifled to carry out circulation
Plug test does not have to take out when being deposited in the sand of bottom of device after needing gradation to collect the connectivity hole by pervious concrete to be tried
Part can be completed directly by disassembly bottom, and the accuracy of test result is improved.
The top of the mechanism that sands, including feeding warehouse and blanking bin, feeding warehouse and blanking bin connects, blanking bin bottom
The blanking hole being evenly distributed equipped with several.
The blanking bin top edge is equipped with card slot.
The water tank, case mouth are equipped with washable filter screen, the water being discharged for filtrating overflow mouth and discharge outlet
In impurity.
The test box is 3 test boxs of laid out in parallel, three test blocks is carried out while being surveyed under the same conditions
Examination, taking three test block infiltration coefficient average values is the last measured value of infiltration coefficient, only by once testing and can effectively measure
The infiltration coefficient of porous pavement.
The spray head, sprinkler height is lower than test box mouth when water spray, prevents the mutual of water flow between each test box from doing
It disturbs.
The material of the test box is acrylic board.
The material of the connecting tube, drainpipe and water tank is plastics.
The utility model has the advantages that a kind of test device of pervious concrete blocking test infiltration coefficient provided by the utility model, tool
It has the following advantages:
(1) 3 test boxs are equipped with, can three test blocks be carried out while be tested under the same conditions, three test blocks is taken to seep
Saturating coefficient average value is the last measured value of infiltration coefficient, only by once testing the infiltration system that can effectively measure porous pavement
Number, after the air bag inflation in the present apparatus with the porous pavement test specimen surrounding of test is closely coupled prevents side wall seepage flow, and the present apparatus
Structure is simple and convenient to operate, and can be further improved the accuracy of test result compared with conventional apparatus.
(2) mechanism that sands is set, improves the uniformity that tamper dispenses, further increases the accuracy of test result.
(3) bottom is designed to detachable base by the utility model, needs collection by several times logical carrying out circulation blocking test
Cross after the connectivity hole of pervious concrete do not have to take out test specimen when being deposited in the sand of bottom of device can be directly by disassembly bottom
It completes, ensure that the accuracy of test result while improving efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the test device of pervious concrete blocking test infiltration coefficient of the utility model
Figure；
Fig. 2 is the structural schematic diagram of test box；
Fig. 3 is the main view of mechanism of sanding；
Fig. 4 is the top view of mechanism of sanding；
In figure, 1. test box, 2. air bag, 3. pervious concrete test specimen, 4. inflating port, 5. pressure sensor, 6. overflow port
7. 8. drain valve of spray head, 9. filter screen, 10. sealing ring 11. connection 12. detachable 13. supporting networks of test box bottom plate of lock
14. 18. data collection system of ultrasonic flow velocity sensors 15. water pump, 16. water tank, 17. discharge outlet, 19. computer 20.
Buckle 21. feeding warehouse, 22. blanking bin, 23. card slot, 24. blanking hole.
Specific embodiment
The utility model is further elaborated with reference to the accompanying drawings and examples, but is not the limit to the utility model
It is fixed.
As depicted in figs. 1 and 2, a kind of test device of pervious concrete blocking test infiltration coefficient, including test box 1,
The setting of case mouth moveable sand mechanism and the spray head 7 at 1 top of test box, spray head 7 are connect by pipeline with water pump 15, test box
The placement area of 1 intracorporal middle part setting pervious concrete test specimen 3；The setting of pervious concrete test specimen 3 is on placing area, permeable coagulation
1 body wall of test box on native 3 top of test specimen is equipped with overflow port 6, and overflow port 6 is connect by connecting tube with water tank 16；Water pump 15
It is connect with water tank 16；1 body wall of test box of 3 lower part of pervious concrete test specimen is equipped with discharge outlet 17, and discharge outlet 17 passes through row
Water pipe is connect with water tank 16, and drainpipe is equipped with ultrasonic flow velocity sensors 14 and drain valve 8；Drain valve 8 is for the row of control
Water, the upper and lower surface of pervious concrete test specimen 3 are respectively equipped with pressure sensor 5, pressure sensor 5 and ultrasonic flow velocity sensors
14 connect with data collection system 18, and collected data are uploaded to computer 19 by data collection system 18.
The pervious concrete test specimen 3 is located in the intracorporal placement area of test box 1, on air bag 2 by the sealing of air bag 2
Equipped with inflating port 4, air bag 2 is closely coupled with 3 surrounding of pervious concrete test specimen of test after inflating, and prevents side wall seepage flow；It is permeable
3 bottom of concrete sample is additionally provided with supporting network 13, is used to support pervious concrete test specimen 3.
The test box 1, the bottom plate of bottom is detachable, and sealing ring 10, connection lock 11, test box are arranged on bottom plate 12
The cabinet of 1 bottom is externally provided with buckle 20, and 12 edge of bottom plate is fastened by sealing ring 10 and buckle 20, to guarantee its connection sealing not
Leak carries out circulation blocking test and needs to be deposited in bottom of device after collecting the connectivity hole by pervious concrete by several times
Not having to taking-up test specimen when husky can directly be completed by disassembly bottom, and the accuracy of test result is improved.
The mechanism that sands, including feeding warehouse 21 and blanking bin 22, feeding warehouse 21 are connect with the top of blanking bin 22, under
22 bottom of feed bin is equipped with several blanking holes 24 being evenly distributed.
22 top outer edge of blanking bin is equipped with card slot 23.
The water tank 16, case mouth are equipped with washable filter screen 9, are used for 17 row of filtrating overflow mouth 6 and discharge outlet
The impurity in water out.
The test box 1 is 3 test boxs of laid out in parallel, three test blocks is carried out while being surveyed under the same conditions
Examination, taking three test block infiltration coefficient average values is the last measured value of infiltration coefficient, only by once testing and can effectively measure
The infiltration coefficient of porous pavement.
The spray head 7, sprinkler height is lower than test box mouth when water spray, prevents the mutual of water flow between each test box from doing
It disturbs.
The material of the test box 1 is acrylic board.
The material of the connecting tube, drainpipe and water tank 16 is plastics.
Specific assay method is as follows for the present apparatus:
(1) device is installed and fixed according to Fig. 1 and schematic diagram shown in Fig. 2,3 pervious concrete test specimens 3 is put into
24 hours are impregnated in NaCI solution, guarantee that test specimen is in water-saturated state, all connectivity holes are all sufficiently soaked.
(2) 3 pervious concrete test specimens are taken out from NaCl solution, wipes its surface moisture, then test specimen is installed
Region 3 is placed in test specimen, air bag inflating port 4 is opened and air bag 2 is inflated, air bag 2 is made to fit closely the side of pervious concrete
Wall is with preventing water leakage.
(3) card slot 24 for the mechanism that sands is docked with 1 top edge of test box, tamper is entered by trapezoidal feeding warehouse
Blanking bin, movement uniformly sand mechanism and uniformly sand to realize.
(4) after sanding, valve 8 is closed, opens intake pump 15, while starting slowly to fill the water to three small test boxs,
Water flow fills the test box 1 on 3 top of pervious concrete test specimen from top to bottom, when overflow port 6 starts overflow, opens valve 8, makes
Water seepage flow for a period of time, starts to test after waterflow stabilization and bubble empty.
(5) difference of the pressure for the test specimen upper and lower surfaces noted down online according to pressure sensor 5 determines water table gradient；And it reads
The water velocity for the outlet pipe that ultrasonic flow velocity sensors 14 on taking and discharging pipe are noted down online, while obtaining 3 permeable coagulations
Water velocity in native test specimen.
(6) osmotic coefficient k of pervious concrete is acquired using Darcy's law.Osmotic coefficient investigating formula is as follows:
Wherein: k1,k2,k3For the infiltration coefficient of 3 pervious concrete test blocks, mm/s；
k?For the average infiltration coefficient of 3 pervious concrete test blocks；
V is the water flow velocity mm/s in outlet pipe；
h1、h2For the pressure on upper and lower two end faces of pervious concrete test specimen；
AefFor pervious concrete test specimen effective sectional area, mm3；
AouFor the inner section product of outlet pipe, mm3；
L is the height of pervious concrete test specimen, mm.
(7) to carry out circulation blocking test when, it is stifled to complete single bottom residue to lead to the disassembly of detachable bottom plate 12
The collection of plug thing.
Claims (9)
1. a kind of test device of pervious concrete blocking test infiltration coefficient, which is characterized in that including test box, test box top
The setting of case mouth moveable sand mechanism and the spray head in portion, spray head are connect by pipeline with water pump, and the intracorporal middle part of test box is set
Set the placement area of pervious concrete test specimen；The setting of pervious concrete test specimen is on placing area, the survey of pervious concrete test piece upper part
It tries box body wall and is equipped with overflow port, overflow port is connect by connecting tube with water tank；Water pump is connect with water tank；Pervious concrete
The test box body wall of test piece lower part is equipped with discharge outlet, and discharge outlet is connect by drainpipe with water tank, and drainpipe is equipped with super
Acoustic wave flow rate sensor and drain valve；The upper and lower surface of pervious concrete test specimen is respectively equipped with pressure sensor, pressure sensor
It is connect with ultrasonic flow velocity sensors with data collection system, collected data are uploaded to computer by data collection system.
2. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 1, which is characterized in that
The pervious concrete test specimen is located in the intracorporal placement area of test box by air sac sealing, and air bag is equipped with inflating port；Thoroughly
Water coagulation soil test specimen bottom is additionally provided with supporting network.
3. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 1, which is characterized in that
The bottom plate of the test box, bottom is detachable, and sealing ring, connection lock, the cabinet peripheral hardware of test box bottom are arranged on bottom plate
There is buckle, bottom edge is fastened by sealing ring and buckle.
4. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 1, which is characterized in that
The top of the mechanism that sands, including feeding warehouse and blanking bin, feeding warehouse and blanking bin connects, and blanking bin bottom is equipped with several
A blanking hole being evenly distributed.
5. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 4, which is characterized in that
The blanking bin top edge is equipped with card slot.
6. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 1, which is characterized in that
The water tank, case mouth are equipped with washable filter screen.
7. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 1, which is characterized in that
The test box is 3 test boxs of laid out in parallel.
8. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 1, which is characterized in that
The material of the test box is acrylic board.
9. a kind of test device of pervious concrete blocking test infiltration coefficient according to claim 1, which is characterized in that
The material of the connecting tube, drainpipe and water tank is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856103.8U CN208999271U (en) | 2018-11-12 | 2018-11-12 | A kind of test device of pervious concrete blocking test infiltration coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821856103.8U CN208999271U (en) | 2018-11-12 | 2018-11-12 | A kind of test device of pervious concrete blocking test infiltration coefficient |
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| CN208999271U true CN208999271U (en) | 2019-06-18 |
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| CN201821856103.8U Expired - Fee Related CN208999271U (en) | 2018-11-12 | 2018-11-12 | A kind of test device of pervious concrete blocking test infiltration coefficient |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296930A (en) * | 2019-07-24 | 2019-10-01 | 平顶山市公路交通勘察设计院 | A kind of device and test method of on-site measurement porous pavement infiltration coefficient |
| CN110320147A (en) * | 2019-07-24 | 2019-10-11 | 长安大学 | A kind of sponge urban water-through is mated formation permeance property attenuation law test device and method |
| CN110823770A (en) * | 2019-11-29 | 2020-02-21 | 郑州航空工业管理学院 | Sponge city permeable pavement dust migration experimental device |
| CN111855538A (en) * | 2020-08-21 | 2020-10-30 | 西北农林科技大学 | Porous ceramic water permeable brick permeability coefficient measuring device and method |
| CN112649342A (en) * | 2020-12-14 | 2021-04-13 | 广东省水利水电科学研究院 | Test device and method for detecting quality of horizontal permeability coefficient of green concrete |
| CN113029891A (en) * | 2019-12-24 | 2021-06-25 | 山西大地华基建材科技有限公司 | Demonstration device for water permeability of reaction permeable brick |
| CN113418849A (en) * | 2021-06-08 | 2021-09-21 | 四川高朋工程检测有限公司 | Device and method for measuring concrete permeability coefficient |
| CN113866061A (en) * | 2021-08-24 | 2021-12-31 | 广西交科集团有限公司 | Test device capable of testing blockage degree of pervious concrete under different rainfall conditions |
| CN114112220A (en) * | 2021-12-15 | 2022-03-01 | 中航贵州飞机有限责任公司 | Containing type air tightness test device and test method |
| CN115598038A (en) * | 2022-12-14 | 2023-01-13 | 叙镇铁路有限责任公司（Cn） | Indoor test determination device for blockage recovery capability of modified permeable pavement |
| CN115855769A (en) * | 2022-11-29 | 2023-03-28 | 水利部交通运输部国家能源局南京水利科学研究院 | Testing device for simulating concrete blocking mechanism and using method thereof |
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2018
- 2018-11-12 CN CN201821856103.8U patent/CN208999271U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296930A (en) * | 2019-07-24 | 2019-10-01 | 平顶山市公路交通勘察设计院 | A kind of device and test method of on-site measurement porous pavement infiltration coefficient |
| CN110320147A (en) * | 2019-07-24 | 2019-10-11 | 长安大学 | A kind of sponge urban water-through is mated formation permeance property attenuation law test device and method |
| CN110823770A (en) * | 2019-11-29 | 2020-02-21 | 郑州航空工业管理学院 | Sponge city permeable pavement dust migration experimental device |
| CN113029891A (en) * | 2019-12-24 | 2021-06-25 | 山西大地华基建材科技有限公司 | Demonstration device for water permeability of reaction permeable brick |
| CN111855538A (en) * | 2020-08-21 | 2020-10-30 | 西北农林科技大学 | Porous ceramic water permeable brick permeability coefficient measuring device and method |
| CN112649342A (en) * | 2020-12-14 | 2021-04-13 | 广东省水利水电科学研究院 | Test device and method for detecting quality of horizontal permeability coefficient of green concrete |
| CN113418849A (en) * | 2021-06-08 | 2021-09-21 | 四川高朋工程检测有限公司 | Device and method for measuring concrete permeability coefficient |
| CN113866061A (en) * | 2021-08-24 | 2021-12-31 | 广西交科集团有限公司 | Test device capable of testing blockage degree of pervious concrete under different rainfall conditions |
| CN114112220A (en) * | 2021-12-15 | 2022-03-01 | 中航贵州飞机有限责任公司 | Containing type air tightness test device and test method |
| CN114112220B (en) * | 2021-12-15 | 2023-09-05 | 中航贵州飞机有限责任公司 | Containing type air tightness test device and test method |
| CN115855769A (en) * | 2022-11-29 | 2023-03-28 | 水利部交通运输部国家能源局南京水利科学研究院 | Testing device for simulating concrete blocking mechanism and using method thereof |
| CN115598038A (en) * | 2022-12-14 | 2023-01-13 | 叙镇铁路有限责任公司（Cn） | Indoor test determination device for blockage recovery capability of modified permeable pavement |
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