CN102324202B - Self-circulation axial-radial seepage Darcy law experimental apparatus - Google Patents
Self-circulation axial-radial seepage Darcy law experimental apparatus Download PDFInfo
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- CN102324202B CN102324202B CN 201110289724 CN201110289724A CN102324202B CN 102324202 B CN102324202 B CN 102324202B CN 201110289724 CN201110289724 CN 201110289724 CN 201110289724 A CN201110289724 A CN 201110289724A CN 102324202 B CN102324202 B CN 102324202B
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- water
- seepage
- fill out
- out sand
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Abstract
The invention relates to a self-circulation axial-radial seepage Darcy law experimental apparatus, which comprises an adjustable pressure water source system, an axial seepage experimental system, a radial seepage experimental system and a vertical experimental frame and is characterized in that the adjustable pressure water source system is arranged at the left side or the right side of the vertical experimental frame; the radial seepage experimental system is arranged at the upper part of a pressure water source protective cabinet of the adjustable pressure water source system; the axial seepage experimental system is arranged at the right side or the left side of the vertical experimental frame; the adjustable pressure water source system provides water sources of different pressures for the axial seepage experimental system and the radial seepage experimental system; the axial seepage experimental system and the radial seepage experimental system are used for respectively demonstrating the axial seepage process and the radial seepage process; and, by means of the experimental apparatus, axial and radial seepage experiments with different water pressures, different section areas of samples and different heights of the samples can be carried out at the same time.
Description
Technical field
The present invention relates to the experiment measuring instrument, especially relate to a kind of self-loopa radially, axial seepage flow Darcy's law experiment instrument.
Background technology
Darcy's law claims again seepage law, refers to be directly proportional with specimen cross sectional area and sample two ends piezometric tube differential water pressures by the flow of sample, is inversely proportional to the height of sample, and this law is still so far analyzes that dam seepage calculates and the theoretical foundation of seepage action of ground water calculating.The Darcy's law experiment instrument is the experimental apparatus that is specifically designed to the checking Darcy's law, measures infiltration coefficient.A kind of Darcy's law experiment instrument that generally adopts both at home and abroad at present, its mode is: experiment instrument is a unitary construction, external water source during experiment, water body is the infiltrate sample from top to bottom, measures differential water pressures by piezometric tube.The shortcoming of this instrument is to only have axial percolation model, lacks the Radial Flow Through Porous Media model, and axially the size of sample of percolation model is single, can only adjust the differential water pressures at sample two ends, the cross-sectional area of sample the and highly impact of seepage flow effect being not reflected.
Summary of the invention
The purpose of this invention is to provide a kind of self-loopa axially, Radial Flow Through Porous Media Darcy's law experiment instrument, the comprehensive axial Seepage Experiment under different hydraulic pressure, various sample cross-sectional area and the various sample height condition can be carried out simultaneously, and the novel Darcy's law experiment instrument of Radial Flow Through Porous Media experiment can be carried out simultaneously.
The present invention is by the adjustable pressure water resource system, axial seepage flow experiment system, Radial Flow Through Porous Media experimental system and vertical experiment frame, it is characterized in that the adjustable pressure water resource system is arranged on a vertical experiment frame left side or right side, the pressure water source that the Radial Flow Through Porous Media experimental system is located at the adjustable pressure water resource system protects the top of cabinet, axially seepage flow experiment system is arranged on vertical experiment frame right side or left side, the water source that the adjustable pressure water resource system provides different pressures for axial seepage flow experiment system and Radial Flow Through Porous Media experimental system, axially Seepage Experiment and Radial Flow Through Porous Media experimental system are demonstrated respectively axial flow event and Radial Flow Through Porous Media process.Test by the axial and Radial Flow Through Porous Media that this experiment instrument can carry out under different hydraulic pressure, various sample cross-sectional area and the various sample height condition simultaneously.
The adjustable pressure water resource system is comprised of water storage box, water pump, upper hose, constant pressure water supply case, lifting bracket, leading screw, pallet, run-down pipe and feed pipe.Water pump is extracted water out in water storage box, in upper hose drains into the constant pressure water supply case, supply tank consists of inside and outside two parts, center section links to each other with feed pipe, provide the constant voltage water source to axial seepage flow experiment system and Radial Flow Through Porous Media experimental system, skin links to each other with run-down pipe, and the water that partly overflows from the centre is got back to the water storage box through run-down pipe, the effect of can reach recycling, saving the water source; Leading screw rotation in the motor-driven lifting bracket can be promoted to differing heights with the constant pressure water supply case that is fixed on the pallet, and the water source of different pressures is provided to axial-radial seepage flow two experimental systems.
Axially seepage flow experiment system is by 1
#Fill out sand tube, 2
#Fill out sand tube, 3
#Fill out sand tube, runing rest, scale, water inlet pipe, rising pipe, pressure guiding pipe and piezometric tube form, and fill out sand tube is comprised of body, plug and pressure cap again.Wherein 1
#The cross-sectional area and 2 of sample in the fill out sand tube
#The cross-sectional area of sample equates in the fill out sand tube, but 1
#The height of sample is 2 in the fill out sand tube
#1/2,2 of the interior specimen height of fill out sand tube
#The height and 3 of sample in the fill out sand tube
#The height of sample equates in the fill out sand tube, but 2
#The cross-sectional area of sample is 3 in the fill out sand tube
#1/2 of fill out sand tube specimen cross sectional area.The water inlet pipe of three fill out sand tube links to each other with the feed pipe of water resource system through stop valve, and pressure guiding pipe links to each other with piezometric tube, can read hydraulic pressure value from scale.Fill out sand tube adopts bottom-up mode when water-filling, can the air scavenge in the fill out sand tube is clean, and avoid entrapped air pockets to affect the seepage flow result.
The Radial Flow Through Porous Media experimental system is comprised of Radial Flow Through Porous Media dish, support, scale, water inlet pipe, rising pipe, pressure guiding pipe and piezometric tube, and the Radial Flow Through Porous Media dish is comprised of lower squeezed branch, middle branch, upper platen, outer connecting cylinder, interior seepage flow cylinder and air relief cock again.The water inlet pipe of Radial Flow Through Porous Media dish links to each other with the feed pipe of water resource system through stop valve, and pressure guiding pipe links to each other with piezometric tube, can read hydraulic pressure value from scale.The Radial Flow Through Porous Media dish has 1
#With 2
#Two interfaces, water inlet pipe and 1
#When interface links to each other, can carry out water and flow to Seepage Experiment all around, water inlet pipe and 2 from the center
#When interface links to each other, can carry out water from around flow to the Seepage Experiment at center.
Advantage of the present invention:
1) axially seepage flow experiment system comprises three fill out sand tube, can carry out simultaneously under same hydraulic pressure, having the Seepage Experiment of the sample of the long-pending and differing heights of varying cross-section, also can adjust the hydraulic pressure size, carry out the Seepage Experiment of same sample under the different hydraulic pressure, experimental result is simple and clear, is easy to three influence factors relation each other that the student understands and grasp Darcy's law.
2) axially three fill out sand tube of seepage flow experiment system can rotate arbitrarily by the center pit on runing rest, can carry out the axial Seepage Experiment under arbitrarily angled.
3) the Radial Flow Through Porous Media dish of Radial Flow Through Porous Media experimental system can carry out the Seepage Experiment of water around flowing to from the center, also can carry out water from around flow to the Seepage Experiment at center, and pressure is fully equal all around, has guaranteed seepage flow isotropy in the horizontal direction.
Description of drawings
Fig. 1 is general structure schematic diagram of the present invention
Fig. 2 is the structural representation of adjustable pressure water resource system
Fig. 3 is axial seepage flow fill out sand tube structural representation
Fig. 4 is Radial Flow Through Porous Media dish structural representation
1-support 2-Radial Flow Through Porous Media dish 3 among the figure, 8-piezometric tube 4,7-scale 5,9-stop valve 6-constant pressure water supply case 10-runing rest 11-3
#Fill out sand tube 12-index dial 13-lock-screw 14-2
#Fill out sand tube 15-1
#Fill out sand tube 16,17-graduated cylinder 21-water pump 22-motor 23-run-down pipe 24-upper hose 25-lifting bracket 26-leading screw 27-feed pipe 28-pallet 29-water storage box 31,48-water inlet pipe 32,38-pressure cap 33,37- plug 34,36,47,51-pressure guiding pipe 35-body 39, branch 45-lower squeezed branch 46-1 among the upper platen 44-of seepage flow cylinder 43-in the outer connecting cylinder 42-of 50-rising pipe 41-
#Interface 49-2
#Interface 52, the 53-air relief cock
Embodiment
For further disclosing technical scheme of the present invention, elaborate by example below in conjunction with Figure of description:
Before doing experiment, check at first whether water storage box 29 interior liquid levels are suitable, then close stop valve 5 on each inlet pipeline, 9 etc., start water pump 21, beginning is to constant pressure water supply case 6 water-fillings.Starter motor 22 makes constant pressure water supply case 6 move to desired height.
Axially seepage flow experiment system comprises 3 fill out sand tube 11,14,15, and operation steps and method are identical, and the below is only with 2
#Fill out sand tube 14 is the example explanation.Rotation 2
#Fill out sand tube 14 makes rising pipe 39 be positioned at the upper end, and is in vertical state, screws lock-screw 13 and makes 2
#Fill out sand tube 14 keeps vertical state, opens stop valve 9, and water enters 2 from constant pressure water supply case 6 through feed pipe 27, stop valve 9 and water inlet pipe 31
#Fill out sand tube 14.After rising pipe 39 beginning water outlets, unclamp lock-screw 13, rotation 2
#Fill out sand tube 14 is to the required angle of experiment, and the angle of inclination can be read from index dial 12, screws lock-screw 13 and makes 2
#Fill out sand tube 14 transfixions.Two piezometric tube 8 link to each other with pressure guiding pipe 34,36 respectively, can read from scale 7 force value of two piezometric tube 8.With graduated cylinder 16 water receivings, and begin simultaneously timing, read graduated cylinder 16 interior water levels when timing finishes, and fill in experimental record.Repeat this experiment 2～3 times, then adjust 2
#The height of the angle of fill out sand tube 14 or adjusting constant voltage supply tank 6 continues experiment and also fills in experimental record.
As required, can be to 1
#Fill out sand tube 15 or 3
#Fill out sand tube 11 interior water-fillings also are adjusted to required angle, with 2
#Fill out sand tube 14 is carried out experiment simultaneously.
When doing the Radial Flow Through Porous Media experiment, preliminary work is with axially Seepage Experiment is identical.Seepage Experiment around the below flows to from the center with water describes.Open stop valve 5, water from constant pressure water supply case 6 through feed pipe 27, stop valve 5, water inlet pipe 48 and 1
#Interface enters the seepage flow dish.Open air relief cock 52 and 53, make the full whole seepage flow dish of water logging, and gas is discharged fully, then screw air relief cock 52 and 53.Two piezometric tube 3 link to each other with pressure guiding pipe 47,51 respectively, can read from scale 4 force value of two piezometric tube 3.With graduated cylinder 17 water receivings, and begin simultaneously timing, read graduated cylinder 17 interior water levels when timing finishes, and fill in experimental record.Repeat this experiment 2～3 times, then regulate height or the transposing water inlet pipe 48 and 2 of constant voltage supply tank 6
#Interface links to each other, rising pipe 50 and 1
#Interface links to each other, and continues experiment and fills in experimental record.
After finishing experiment, switch off the pump 21, close each stop valve 5,9 etc., experiment finishes.
Claims (1)
1. a self-loopa is axial, Radial Flow Through Porous Media Darcy's law experiment instrument, comprise the adjustable pressure water resource system, axial seepage flow experiment system, Radial Flow Through Porous Media experimental system and vertical experiment frame, it is characterized in that the adjustable pressure water resource system is arranged on a vertical experiment frame left side or right side, the pressure water source that the Radial Flow Through Porous Media experimental system is located at the adjustable pressure water resource system protects the top of cabinet, axially seepage flow experiment system is arranged on vertical experiment frame right side or left side, the water source that the adjustable pressure water resource system provides different pressures for axial seepage flow experiment system and Radial Flow Through Porous Media experimental system, axially Seepage Experiment and Radial Flow Through Porous Media experimental system are demonstrated respectively axial flow event and Radial Flow Through Porous Media process; The adjustable pressure water resource system comprises water storage box, water pump, upper hose, constant pressure water supply case, lifting bracket, leading screw, pallet, run-down pipe and feed pipe, water pump is extracted water out in water storage box, in upper hose drains into the constant pressure water supply case, supply tank divides middle and outer two parts, center section links to each other with feed pipe, provide the constant voltage water source to axial seepage flow experiment system and Radial Flow Through Porous Media experimental system, outer layer segment links to each other with run-down pipe, the water that partly overflows from the centre is got back to the water storage box through run-down pipe, the effect of can reach recycling, saving the water source; Leading screw rotation in the motor-driven lifting bracket can be promoted to differing heights with the constant pressure water supply case that is fixed on the pallet, and the water source of different pressures is provided to axial-radial seepage flow two experimental systems; Axially seepage flow experiment system comprises fill out sand tube No. 1, No. 2 fill out sand tube, No. 3 fill out sand tube, runing rest, scale, water inlet pipe, rising pipe, pressure guiding pipe and piezometric tube, each fill out sand tube is again by body, plug and pressure cap form, wherein the cross-sectional area of No. 1 interior sample of fill out sand tube equates with the cross-sectional area of No. 2 interior samples of fill out sand tube, the height of No. 1 interior sample of fill out sand tube is 1/2 of No. 2 interior specimen height of fill out sand tube, the height of samples equates with the height of samples in No. 3 fill out sand tube in No. 2 fill out sand tube, and the cross-sectional area of No. 2 interior samples of fill out sand tube is 1/2 of No. 3 fill out sand tube specimen cross sectional areas; The water inlet pipe of each fill out sand tube links to each other with the feed pipe of water resource system through stop valve, pressure guiding pipe links to each other with piezometric tube, can read hydraulic pressure value from scale, and each fill out sand tube adopts bottom-up mode when water-filling, can the air scavenge in the fill out sand tube is clean, avoid entrapped air pockets to affect the seepage flow result; The Radial Flow Through Porous Media experimental system comprises Radial Flow Through Porous Media dish, support, scale, water inlet pipe, rising pipe, pressure guiding pipe and piezometric tube, the Radial Flow Through Porous Media dish is comprised of lower squeezed branch, middle branch, upper platen, outer connecting cylinder, interior seepage flow cylinder and air relief cock again, the water inlet pipe of Radial Flow Through Porous Media dish links to each other with the feed pipe of water resource system through stop valve, pressure guiding pipe links to each other with piezometric tube, can read hydraulic pressure value from scale; The Radial Flow Through Porous Media dish has No. 1 and No. 2 two interfaces, when water inlet pipe links to each other with No. 1 interface, can carry out the Seepage Experiment of water around flowing to from the center, when water inlet pipe links to each other with No. 2 interfaces, can carry out water from around flow to the Seepage Experiment at center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110289724 CN102324202B (en) | 2011-09-21 | 2011-09-21 | Self-circulation axial-radial seepage Darcy law experimental apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110289724 CN102324202B (en) | 2011-09-21 | 2011-09-21 | Self-circulation axial-radial seepage Darcy law experimental apparatus |
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| CN102324202A CN102324202A (en) | 2012-01-18 |
| CN102324202B true CN102324202B (en) | 2013-10-16 |
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| CN103323379B (en) * | 2013-05-21 | 2015-06-10 | 清华大学 | Indoor columnar soil layer specific yield automatic determination system |
| CN104655543A (en) * | 2015-01-28 | 2015-05-27 | 广西大学 | Vertical permeability clogging and reduction testing device of geocomposite drainage material filter membrane and detection method thereof |
| CN106205330A (en) * | 2016-06-23 | 2016-12-07 | 长江大学 | A kind of experiment device for teaching predicting inter well connectivity |
| CN107024421A (en) * | 2017-06-08 | 2017-08-08 | 西南交通大学 | Seepage tests system |
| CN108226008B (en) * | 2018-01-18 | 2020-12-18 | 西安理工大学 | Self-circulation variable water head Darcy infiltration experimental instrument |
| CN108548841A (en) * | 2018-05-22 | 2018-09-18 | 北京城建集团有限责任公司 | A kind of constant pressure frost heave test benefit drainage arrangement of real-time monitoring water variation |
| CN109612907B (en) * | 2018-12-27 | 2021-11-16 | 太原理工大学 | Testing device and method for permeability test of fractured coal rock mass |
| CN110174344A (en) * | 2019-06-19 | 2019-08-27 | 郑州大学 | A kind of two-way Radial Flow Through Porous Media instrument and its application method |
| CN110082281B (en) * | 2019-06-19 | 2024-04-12 | 郑州大学 | Radial seepage instrument and operation method thereof |
| CN112627787B (en) * | 2019-10-08 | 2023-04-07 | 中国石油天然气股份有限公司 | Sand filling pipe device, filling method and water drive experiment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2718706Y (en) * | 2004-06-22 | 2005-08-17 | 浙江大学 | Self-circulating darcy law experimental instrument |
| CN101344515A (en) * | 2008-08-29 | 2009-01-14 | 成都理工大学 | Permeability coefficient determinator |
| CN102033034A (en) * | 2010-10-29 | 2011-04-27 | 四川大学 | Soil body horizontal osmotic coefficient measuring apparatus |
| CN201876408U (en) * | 2010-11-02 | 2011-06-22 | 同济大学 | Multifunctional permeameter |
-
2011
- 2011-09-21 CN CN 201110289724 patent/CN102324202B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2718706Y (en) * | 2004-06-22 | 2005-08-17 | 浙江大学 | Self-circulating darcy law experimental instrument |
| CN101344515A (en) * | 2008-08-29 | 2009-01-14 | 成都理工大学 | Permeability coefficient determinator |
| CN102033034A (en) * | 2010-10-29 | 2011-04-27 | 四川大学 | Soil body horizontal osmotic coefficient measuring apparatus |
| CN201876408U (en) * | 2010-11-02 | 2011-06-22 | 同济大学 | Multifunctional permeameter |
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