CN208091868U - The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously - Google Patents

The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously Download PDF

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Publication number
CN208091868U
CN208091868U CN201820376397.8U CN201820376397U CN208091868U CN 208091868 U CN208091868 U CN 208091868U CN 201820376397 U CN201820376397 U CN 201820376397U CN 208091868 U CN208091868 U CN 208091868U
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water
pipe
pressure
water inlet
specific yield
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CN201820376397.8U
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Chinese (zh)
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杨婷婷
许光泉
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Anhui University of Science and Technology
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Anhui University of Science and Technology
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  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The utility model provides a kind of circulation experiment device for testing porosity, specific yield and infiltration coefficient, which is mainly made of sand container, strainer, pressure measurement plate, pressure-stabilizing water supply case, water tank, water pump, lifting support, several water inlet pipes, several outlet pipes and several controlled valves etc..The utility model is easy to use, can measure the hydrogeological parameters such as porosity, specific yield and infiltration coefficient simultaneously.It can carry out determining the darcy flow experiment in the case of head, indefinite head, and it can accomplish recycling for water resource in an experiment, it such as can apply in hydrogeological study, contribute to student to be best understood from porosity, specific yield and infiltrative measuring principle under various change of water level as instruments used for education;Can be well land use, engineering construction provides best embodiment as being applied in produce reality.

Description

The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously
Technical field
The utility model is related to indoor hydrogeological parameter measure field, it is specifically a kind of can measure simultaneously porosity, to The circulation experiment device of water degree and infiltration coefficient.
Background technology
Specific yield, porosity and infiltration coefficient are parameters indispensable in survey for the purpose of locating hydrogeological resources, can not only intuitively be reacted Go out the hydrological geological conditions of this area, and divides an important factor for can not ignore containing water barrier.Understand the hole of original position soil Degree, specific yield and permeability can provide most strong scheme for the Soil Utilization of this area, this applies existing engineering Work, infrastructure and agricultural land etc. suffer from considerable effect.Therefore it is simulated indoors not using the device Same head difference, lower measurement situation of the flow by the various parameters of original position soil of different flow effect, not only facilitates more smart Its hydrogeological parameter of true measurement, allows student to be more apparent from its measuring principle, be more favorable to comprehensively to contain every Water layer is divided, and most strong scheme is provided for the land used direction in later stage.
Currently, utilizing darcy instrument to measure infiltration coefficient in laboratory, porosity, specific yield are measured with specific yield instrument more, or A kind of instrument of person determines head and measures infiltration coefficient, specific yield and porosity, cannot be satisfied change and specific yield, the porosity of head Simultaneous Determination, measure and take, repeatedly buy that instrument price is expensive and occupy practice ground more, and how straight the waste water after testing is It connects and downcomer is excreted by outlet pipe, can not accomplish the secondary or even multiple utilization of experimental water, be unfavorable for environmental protection.It is basic herein On, it is necessary to develop the every loss of reduction, the laboratory apparatus to economize on resources meets the circulation experiment device of requirement of experiment.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can measuring porosity, specific yield and infiltration system simultaneously Several circulation experiment devices.
The utility model provides a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously, It is characterized in that including the sand container with scale mark, flowmeter, the first, second, third, the 4th valve switch, water Case, water feeding tank, water pump, a plurality of pressure measurement connecting tubes, with graduated pressure-measuring pipe, pressure-measuring pipe, a plurality of pressure measurement pipe nipple scales Ruler, strainer, timer, lifting support, water inlet pipe, outlet pipe and connecting tube;
Sand container bottom has an apopore to connect an outlet pipe, and connects first valve, and first stream is connected at valve There is a pressure-measuring pipe with a scale in the lower left of gauge, sand lower vessel portion strainer, and plural number is passed through on the right side of sand container Pressure measurement connects pipe nipple, and each pressure measurement pipe nipple is connect by a pressure measurement connecting tube with a pressure-measuring pipe on pressure measurement plate respectively, The top of strainer connects a water inlet pipe by connecting tube above sand container, and second valve is set on water inlet pipe, and valve is opened Second flowmeter is connected at pass, is connected with a pressure-stabilizing water supply case on the left of water inlet pipe;Water feeding tank is placed in a lifting support, holder Top is equipped with the crossbeam for being parallel to sand container, and fixed pulley is cased among crossbeam, and pulley passes on left steel wire rope connection lifting dress Control handle is set, passes through the connected (not shown) of circular hole above the baffle among steel wire rope and water feeding tank, baffle on the right side of pulley Right side be pressure-stabilizing water supply case master cylinder, there is a water inlet circular hole in its underpart, and water inlet circular hole connects a water inlet pipe by connecting tube, and Third road valve is set in connecting tube, water inlet pipe is connected with the water pump in water tank, is overflow cylinder on the left of baffle, under have a water outlet Circular hole, water outlet circular hole connects an outlet pipe, and the 4th valve is set on outlet pipe, the outlet pipe and sand of the overflow cylinder The outlet pipe of container is accessed by connecting tube in water tank, and connecting tube is connected with the filter in water tank, and the time of experiment passes through Timer on pressure measurement plate is recorded.
The strainer is the poroid plate of circle for being tied with fine and close steel wire.
There is gauze package on the inside of the pressure measurement ozzle, at outlet pipe and water inlet tube interface.
The timer is fixed on pressure measurement plate.
The water inlet pipe, outlet pipe, connecting tube, pressure-measuring pipe are rubber tube.
The sand container is transparent cylinder.
The pressure-stabilizing water supply case, water tank are transparent pane body, and water tank volume is much larger than water tank of voltage regulation.
The water feeding tank is located inside lifting support, and lifting support is steel cuboid, and lifting handle connected to it is Steel is round, is connected with water feeding tank by steel wire rope and steel circle truckle.
The sand container is discharged circular hole, and master cylinder water inlet circular hole, overflow cylinder water outlet circular hole are by the bottom of respective container It digs out, it is in the same size.
The utility model has the advantage of:Using the utility model, gradual full water during can obtain porosity, In the case where full water gradually releases water, the variation of observed volume and water level can calculate specific yield
In the case where sand satisfies water, the measurement for determining head and indefinite head is carried out, carries out darcy experiment, observation water respectively Head variation and flow, to calculate infiltration coefficient;
The utility model is easy to operate, and observation is convenient, not only can obtain soil permeability coefficient from multi-angle, help to test Person is better understood from infiltrative measuring principle under porosity, specific yield and various change of water level, and during the experiment Flow into go out to be formed a circulatory system, using water wisely while, also embodies the theory of sustainable development.
Description of the drawings
Fig. 1 is a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously of the utility model Structural schematic diagram.
In figure:1- sand containers, 2-1,2-2- strainer, 3-1,3-2- flowmeter, pressure-measuring pipe with a scale 4-, 5- pressure measurement Pipe, 6- pressure measurement plates, 7- timers, 8- water feeding tanks, 9- pulleys, 10- steel wire ropes, 11- lifting supports, 12- lift handle, and 13- is real Platform is tested, 14- water tanks, 15- water pumps, 16-1,16-2,16-3,16-4- switch, 17- pressure measurement connecting tubes, 18-1,18-2- are discharged soft Pipe, 19-1,19-2- water supply hose, 20- are discharged circular hole, 21- filters, 22- pressure measurement pipe nipples, 23- filtration gauzes, 24- cross Beam, 25- baffles, 26- master cylinders, 27- overflow cylinders, 28- water inlet circular holes, 29- connecting tubes, 30- sand containers are discharged circular hole
Specific implementation mode
To keep structure, the application method of the utility model apparent, the utility model is done below by way of specific embodiment It further explains.
As shown in Figure 1, the circulation experiment device of the test porosity, specific yield and infiltration coefficient includes sand container 1, Strainer 2-1,2-2, flowmeter 3, pressure-measuring pipe 4 with a scale, pressure-measuring pipe 5, pressure measurement plate 6, timer 7, water feeding tank 8, pulley 9, steel Cord 10, lifting support 11 lift handle 12, suction pump 15, valve switch 16-1,16-2,16-3,16-4, pressure measurement connecting tube 17, delivery hose 18-1,18-2, water supply hose 19-1,19-2 are discharged circular hole 20, pressure measurement pipe nipple 22, filtration gauze 23, cross Beam 24, baffle 25, master cylinder 26, overflow cylinder 27, circular hole 28 of intaking, more this connected combination of 29 or more connecting tube are placed on reality It tests on platform 13, filter 21, water tank 14 are positioned under experimental bench.
1 bottom of sand container has a water outlet circular hole 30 to connect outlet pipe 18-1, and first valve is connected on outlet pipe 18-1 Flowmeter 3-1 is connected at 16-1, valve switch 16-1, the lower left connection one of 1 lower part strainer 2-2 of sand container is with graduated The right of pressure-measuring pipe 4, sand container 1 passes through plural pressure measurement connection pipe nipple 22, is cased at pressure measurement pipe nipple 22 Gauze 23 is filtered, each pressure-measuring pipe connects 22 and connect respectively with a pressure-measuring pipe 5 on pressure measurement plate 6 by a pressure measurement connecting tube 17, sand The top of 1 top strainer 2-1 of soil container connects a water inlet pipe 19-2, and second valve 16-2, valve are set on water inlet pipe 19-2 Flowmeter 3-2 is connected at door switch 16-2, is connected with a water feeding tank 8 on the left of water inlet pipe 19-2;Water feeding tank 8 is placed in a lifting support In 11,11 top of lifting support is equipped with the crossbeam 24 for being parallel to sand container, and fixed pulley 9 is cased among crossbeam 24, and fixed pulley 9 is left Side connects the control handle 12 of lifting gear 11 by steel wire rope 10, and 9 right side of pulley passes through 8 centre of steel wire rope 10 and water feeding tank The circular hole (not shown on figure) of 25 top of baffle is connected, and the right side of baffle 25 is the master cylinder 26 of water feeding tank 8, and there is a water inlet in its underpart Circular hole 28, water inlet circular hole 28 connects a water inlet pipe 19-1, and third road valve 16-3, water inlet pipe 19-1 are set on water inlet pipe 19-1 It is connected with the water pump 15 in lower part water tank 14, to provide stationary flow in water feeding tank, 25 left side of baffle is overflow cylinder 27, its underpart There is a water outlet circular hole 20, water outlet circular hole 20 connects an outlet pipe 18-2, and the 4th valve 16-4 is set on outlet pipe 18-2, institute The outlet pipe 18-1 for stating the 26 water inlet pipe 19-1 of master cylinder of water feeding tank 8, the outlet pipe 18-2 of overflow cylinder 27 and sand container 1 is logical It crosses connecting tube 29 to access in water tank 14, connecting tube 29 is connect in water tank 14 with filter 21, and the time of experiment passes through pressure measurement plate 6 Upper left timer 7 is recorded.
The sand container 1 is cylinder, and water feeding tank 8 and water tank 14 are cuboid, described water inlet pipe 19-1,19-2, Outlet pipe 18-1,18-2, connecting tube 29 are rubber tube.
Before experiment, valve switch 16-1,16-2,16-3 are closed, opens 16-4, and the original position soil of required measurement will be delayed Slowly pour into sand container 4, need to pat sand container during dress sample, guarantee do not destroy sample structure and with sand chamber wall coupling It closes, opens valve switch 16-3.
It opens water pump 15 and makes flow slow water filling into master cylinder 26 by water inlet pipe 19-1, when the water in master cylinder 26 starts When being flowed out into overflow cylinder 27, valve 16-2 is opened so that flow is flowed slowly by water inlet pipe 19-2 in sand container 1, when Sample in sand container 1 is satisfied after water, and valve switch 16-2,16-3,16-4 are closed, and reads the inflow of recording flowmeter 3-2 And satisfy shown in timer 7 the water cumulative time, according to data above and the volume capacity data of sand container 4, according to correlation formula Obtain original position soil porosity.
Using lifting handle 12, water feeding tank 8 is risen to the top of sand container 1, the bottom surface of initial time water feeding tank 8 and sand 1 top strainer 2-1 of soil container is flushed, and opens valve switch 16-3,16-4, and flow enters master cylinder 26 by water inlet pipe 19-1, when When the flow of master cylinder 26 is spilled over to overflow cylinder 27, valve switch 16-2 is opened simultaneously, by water inlet pipe 19-2 into sand container 1 Slow water filling closes valve switch 16-2,16-3, opens valve switch 16-1, allow saturation until water-saturated state is presented in sand body The water of sand oozes out, and flows through flowmeter 3-1 by outlet pipe 18-1, and flowing through filter 21 by connecting tube 29 returns water tank In 14, meanwhile, the data of every pressure-measuring pipe 5, corresponding flowmeter 3-1 on the graduated pressure-measuring pipe 4 of record paper and pressure measurement plate 6 Flow and corresponding timer 7 the data such as time, when piezometric levels being waited to drop to a certain degree, close valve switch 16-1.So It opens valve switch 16-1 again afterwards, the water in sand is allowed to be oozed out by outlet pipe 18-1, flow number is recorded by flowmeter 3-1 According to, and the graduated pressure-measuring pipe of record paper 4 and the data of every pressure-measuring pipe 5 on pressure measurement plate 6 and the data of timer 7, wait survey Pressure water level turns off controlled valve 16-1 when dropping to a certain degree, repeatedly the above process, the pressure measurement in sand container 1 When water level reaches the nozzle of pressure-measuring pipe 4 with a scale, valve switch 16-1 is closed, according to the volume of sand container 1, flowmeter 3- 1, with 7 recorded data of every pressure-measuring pipe 5 and timer on graduated pressure-measuring pipe 4, pressure measurement plate 6, according to correlation formula It obtains the specific yield of original position soil and determines the infiltration coefficient of head.
Then valve switch 16-3 is opened, allows the flow in water tank 14 under the action of water pump 15, passes through water inlet pipe 19-1 It flows into master cylinder and turns on the switch 16-2 when the flow in master cylinder, which covers baffle 25, flows to overflow cylinder, sluggish flow is allowed to pass through water inlet Pipe 19-2 is flowed into sand container 1, until water-saturated state occurs in the sand body in sand container 1, closes valve switch 16-2, note Flowmeter 3-2, the data with every pressure-measuring pipe 5 on graduated pressure-measuring pipe 4, pressure measurement plate 6 are recorded, valve switch 16-1 is opened, makes It obtains flow to ooze out by outlet pipe 18-1, is flowed into filter 21 by the connecting tube 29 that flow measuring unit 3-1 is connected, come back to water In case 14, valve switch 16-1 is closed when the piezometric level in sand container is flushed with the nozzle with graduated pressure-measuring pipe 4, Data of the record with every pressure-measuring pipe 5, flowmeter 3-1 and timer 7 on scale pressure-measuring pipe 4, pressure measurement plate 6.Utilize lifting Water feeding tank 8 is declined certain altitude by handle 12, opens valve switch 16-2 so that flow flows slowly into sand by water inlet pipe 19-2 In soil container 1, until water-saturated state is presented in sand body, valve switch 16-2, the graduated pressure-measuring pipe 4 of record paper, pressure measurement are closed The data of every pressure-measuring pipe 5 and flowmeter 3-2 on plate 6 open valve switch 16-1 so that flow is oozed out, and piezometric level is worked as When being flushed with the nozzle with graduated pressure-measuring pipe 4, valve switch 16-1, the graduated pressure-measuring pipe of record paper, pressure measurement plate 6 are closed The data of upper every pressure-measuring pipe 5, flowmeter 3-1 and timer 7 lift handle 12 and water feeding tank 8 are declined certain altitude again, Repeatedly aforesaid operations close valve switch until the bottom of water feeding tank 8 is flushed with the nozzle with graduated pressure-measuring pipe 4 16-1, using the volume of sand container 1, with graduated pressure-measuring pipe 4, every pressure-measuring pipe 5 on pressure measurement plate 6, flowmeter 3-1,3-2 And the data of timer 7, the infiltration coefficient of indefinite head original position soil is calculated using correlation formula.

Claims (9)

1. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously, it is characterised in that including carrying The sand container of scale mark, the first, second, third, the 4th valve switch, water tank, water feeding tank, water pump, is answered at flowmeter Several pressure measurement connecting tubes, with graduated pressure-measuring pipe, a plurality of pressure measurement pipe nipples, strainer, timer, lifting support, water inlet pipe, Outlet pipe and connecting tube;
Sand container bottom has an apopore to connect an outlet pipe, and connects first valve, and first flowmeter is connected at valve, There is a pressure-measuring pipe with a scale in the lower left of sand lower vessel portion strainer, and a plurality of pressure measurement are passed through on the right side of sand container Pipe nipple is connected, each pressure measurement pipe nipple is connect by a pressure measurement connecting tube with a pressure-measuring pipe on pressure measurement plate respectively, sand The top of strainer connects a water inlet pipe above container, and second valve is set on water inlet pipe, and second is connected at valve switch Flowmeter, water inlet pipe left side are connected with a pressure-stabilizing water supply case;Water feeding tank is placed in a lifting support, is equipped with and is parallel to above holder The crossbeam of sand container, fixed pulley is cased among crossbeam, and pulley passes on left steel wire rope connection lifting gear control handle, pulley Right side is connected by the circular hole above the baffle among steel wire rope and water feeding tank, and the right side of baffle is the master cylinder of pressure-stabilizing water supply case, There is a water inlet circular hole in its underpart, and water inlet circular hole connects a water inlet pipe, and third road valve, water inlet pipe and water tank are set on water inlet pipe In water pump be connected, be overflow cylinder on the left of baffle, under have a water outlet circular hole, water outlet circular hole connects an outlet pipe, and is being discharged The 4th valves of Guan Shangshe, the outlet pipe of the overflow cylinder and the outlet pipe of sand container access water tank by connecting tube In, connecting tube is connected with the filter in water tank, and the time of experiment is recorded by the timer on a pressure measurement plate left side.
2. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:The strainer is the poroid plate of circle for being tied with fine and close steel wire.
3. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:There is gauze package on the inside of the pressure measurement ozzle, at outlet pipe and water inlet tube interface.
4. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:The timer is fixed on pressure measurement plate upper left side.
5. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:The water inlet pipe, outlet pipe, connecting tube, pressure-measuring pipe are rubber tube.
6. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:The sand container is transparent cylinder.
7. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:The pressure-stabilizing water supply case, water tank are transparent pane body, and water tank volume is much larger than water tank of voltage regulation.
8. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:The water feeding tank is located inside lifting support, and lifting support is steel cuboid, is higher than sand container, with it The lifting handle of connection is that steel is round, is connected with water feeding tank by steel wire rope and steel circle truckle.
9. a kind of circulation experiment device that can measure porosity, specific yield and infiltration coefficient simultaneously according to claim 1, It is characterized in that:The sand container is discharged circular hole, and master cylinder water inlet circular hole, overflow cylinder water outlet circular hole are by the bottom of respective container Portion is dug out, in the same size.
CN201820376397.8U 2018-03-20 2018-03-20 The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously Expired - Fee Related CN208091868U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108344677A (en) * 2018-03-20 2018-07-31 安徽理工大学 The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously
CN114279930A (en) * 2021-12-24 2022-04-05 云南华水投资管理有限公司 Permeation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108344677A (en) * 2018-03-20 2018-07-31 安徽理工大学 The circulation experiment device of porosity, specific yield and infiltration coefficient can be measured simultaneously
CN114279930A (en) * 2021-12-24 2022-04-05 云南华水投资管理有限公司 Permeation device

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Granted publication date: 20181113

Termination date: 20190320