CN205384209U - Capillary rise height and feedwater degree apparatus - Google Patents
Capillary rise height and feedwater degree apparatus Download PDFInfo
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- CN205384209U CN205384209U CN201620173256.7U CN201620173256U CN205384209U CN 205384209 U CN205384209 U CN 205384209U CN 201620173256 U CN201620173256 U CN 201620173256U CN 205384209 U CN205384209 U CN 205384209U
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- earth pillar
- capillary rise
- rise height
- measurer
- supplying water
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Abstract
The utility model provides a capillary rise height and feedwater degree apparatus is equipped with experiment segment, measurable velocity of flow water supply installation, measurable velocity of flow overflow arrangement and water supply and drainage earth pillar, the utility model discloses but simultaneous determination capillary rise height and feedwater degree, and survey feedwater does not need when spending, and the permeable stone is markd, easy operation, but when surveing the capillary rise height water yield and concluding time of accurate determination of capillary rise. The utility model discloses have extensive application prospect, help the student better to understand the determination principle of feedwater degree and capillary rise height as instruments used for education, but and can use underground balanced calculations of water resource, phreatic fluctuation prediction, calculations of phreatic water produced quantity, agricultural drain ditch, hidden pipe depth of flute, interval calculation, field irrigation and drainage calculation, irrigation in putting into production and infiltrate hydrogeological parameter calculation such as supply coefficient, rainfall infiltration supply coefficient to and in the design of farmland drainage engineering, foundation soil bearing capacity and the freeze injury evaluation research.
Description
Technical field
This utility model relates to a kind of capillary rise height and measurer of supplying water amount, belongs to Geotechnical Parameter property testing field.
Background technology
At groundwater resources EQUILIBRIUM CALCULATION FOR PROCESS, diving dynamic prediction, the calculating of phreatic water allowable exploitation, farmland drainage ditch, hidden pipe ditch depth, distance computation, field irrigation and drain calculation, the Irrigation Infiltration supply hydrogeological parameter calculation such as coefficient, Rain penetration supply variations, and in Agricultural Drain Project design, bearing capacity of foundation slab and freeze injury evaluation, specific yield and capillary rise height are highly important two parameters.Along with the growing tension of water resource and large-scale developing and utilizing of groundwater resources, people start to be devoted to assay method and the device thereof of research specific yield and capillary rise height.
Ground specific yield refers to that exploiting groundwater makes level of ground water decline, original zone of saturation ground space Zhong Shui, will disengage under gravity, and be specifically defined as: during decline of groundwater level unit volume, disengages the volume of water and the ratio of drainage volume, represents with μ.In currently practical production application, specific yield generally adopts specific yield instrument to be measured, but current specific yield instrument mensuration process is loaded down with trivial details, before carrying out specific yield experiment, it is necessary to demarcate the negative pressure value of permeable stone.And the calibration process of permeable stone negative pressure value is loaded down with trivial details, the reason that the not readily understood permeable stone negative pressure value of student is demarcated, and the specific yield measured is relevant with the size of permeable stone negative pressure value.
Classical underground water dynamics, it is proposed that the theoretical definition of capillary rise height: under the effect of capillary force, the maximum height risen on the fine capillary pore of soil of diving under water.Current capillary rise height is mainly through vertical tube method test determination, but cannot measure the capillary rise end time in mensuration process, and cannot the water yield of quantitative assay capillary rise, measure process loaded down with trivial details simultaneously.
In sum, current capillary rise experimental provision and specific yield instrument, can only individually measure capillary rise height and specific yield, and loaded down with trivial details in the process of mensuration, therefore lack one and can measure specific yield and capillary rise height analyzer simultaneously.
Summary of the invention
In order to solve the deficiencies in the prior art, this utility model provides a kind of capillary rise height and measurer of supplying water amount, it is possible to quickly measure specific yield, does not need permeable stone to demarcate, simple to operate, it is possible to measure capillary rise height and specific yield simultaneously.
This utility model be the technical scheme is that to provide a kind of capillary rise height and measurer of supplying water amount by its technical problem of solution, including the earth pillar that 2 upper bottom surface openings, bottom surface are closed, 2 earth pillar respectively earth pillar A and earth pillar B, it is connected with poly (methyl methacrylate) plate with holes within earth pillar A, the upper surface of poly (methyl methacrylate) plate with holes is equipped with gauze, cavity more than poly (methyl methacrylate) plate with holes is the sample room for placing sample, cavity between the bottom surface of poly (methyl methacrylate) plate with holes and earth pillar A is steady hydroecium, and the bottom surface of earth pillar A is provided with connecting hole A；The sidewall of earth pillar B is provided with 2 holes of differing heights, and wherein relatively low hole is spout hole, and spout hole connects with the overflow pipe being provided with current meter A, and higher hole is water supply hole, and water supply hole is connected with the feed pipe being provided with switch B and current meter B；The bottom surface of earth pillar B is provided with connecting hole B and osculum, and the connecting hole B of earth pillar B connects with the connecting hole A of earth pillar A bottom surface by being provided with the connecting tube of switch C, and the osculum of earth pillar B connects with the drain pipe being provided with switch A.
Described earth pillar A is the lucite tube of internal diameter 2～40cm, wall thickness 0.2～1cm, and the distance of the bottom surface of poly (methyl methacrylate) plate with holes and earth pillar A is 2～5cm.
Described earth pillar B is the lucite tube of internal diameter 2～40cm, wall thickness 0.2～1cm.
Described earth pillar B is provided with scale.
The vertical height h at described overflow pipe distance earth pillar A top is more than the maximum capillary rise height of the sample being housed in earth pillar A.
Described overflow pipe is the lucite tube of internal diameter 0.5～2cm, wall thickness 0.2～0.5cm, 20～50cm bottom its distance earth pillar B.
Described feed pipe is the lucite tube of internal diameter 0.5～2cm, wall thickness 0.2～0.5cm, 35～60cm bottom its distance earth pillar B.
The bottom of earth pillar A and earth pillar B is equipped with support.
Layering sample it is placed with in the sample room of earth pillar A.
This utility model is had advantageous effect in that based on its technical scheme:
(1) capillary rise height of the present utility model and measurer of supplying water amount are provided with experimental section, measurable flow speed water supply installation, measurable flow speed overflow mechanism and water supply and drainage earth pillar, wherein experimental section is by earth pillar A, gauze, poly (methyl methacrylate) plate with holes, steady hydroecium, connecting hole and sample composition, measurable flow speed water supply installation is by switching B, current meter B and feed pipe composition, measurable flow speed overflow mechanism is made up of current meter A and overflow pipe, water supply and drainage earth pillar is by earth pillar B, connecting hole B, osculum, connecting tube, drain pipe, switch C and switch A composition, these a few part combineds effect, can pass through to read the height of water level of earth pillar B, substitute into correlation formula and can quickly measure specific yield, do not need the processes such as permeable stone demarcation, simple to operate；
(2) being provided with steady hydroecium bottom earth pillar A of the present utility model, when the full water of earth pillar A, steady hydroecium can weaken current washing away sample, makes measurement result more accurate；
(3) utilize capillary rise height of the present utility model and measurer of supplying water amount can Accurate Determining capillary rise height and capillary rise end time, and can the water yield of quantitative measurement capillary rise, quantitative and qualitative understands capillary rise effect；
(4) utilize capillary rise height of the present utility model and measurer of supplying water amount can measure capillary rise height and specific yield simultaneously, improve efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of capillary rise height of the present utility model and measurer of supplying water amount.
In figure: 1-earth pillar A, 2-gauze, 3-poly (methyl methacrylate) plate with holes, the steady hydroecium of 4-, 5-sample, 6-switchs C, 7-earth pillar B, 8-and switchs A, 9-connecting hole A, 10-connecting hole B, 11-osculum, 12-switchs B, 13-current meter B, 14-feed pipe, 15-overflow pipe, 16-current meter A, 18-connecting tube, 19-drain pipe, 20-support, 21-scale.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
This utility model provides a kind of capillary rise height and measurer of supplying water amount, with reference to Fig. 1, including the earth pillar that 2 upper bottom surface openings, bottom surface are closed, 2 earth pillar respectively earth pillar A1 and earth pillar B7, it is connected with poly (methyl methacrylate) plate 3 with holes within earth pillar A, the upper surface of poly (methyl methacrylate) plate with holes is equipped with gauze 2, selected gauze and lucite tube with holes, and the permeation effects of sample is negligible；Cavity more than poly (methyl methacrylate) plate with holes is the sample room for placing sample, and the cavity between the bottom surface of poly (methyl methacrylate) plate with holes and earth pillar A is steady hydroecium 4, when the full water of earth pillar, steady hydroecium can weaken current washing away sample；The bottom surface of earth pillar A is provided with connecting hole A9；The sidewall of earth pillar B is provided with 2 holes of differing heights, and wherein relatively low hole is spout hole, and spout hole connects with the overflow pipe 15 being provided with current meter A16, and higher hole is water supply hole, and water supply hole is connected with the feed pipe 14 being provided with switch B12 and current meter B13；The bottom surface of earth pillar B is provided with connecting hole B10 and osculum 11, and the connecting hole B of earth pillar B connects with the connecting hole A of earth pillar A bottom surface by being provided with the connecting tube 18 of switch C6, and the osculum of earth pillar B connects with the drain pipe 19 being provided with switch A8.
Described earth pillar A is the lucite tube of internal diameter 2～40cm, wall thickness 0.2～1cm, and the distance of the bottom surface of poly (methyl methacrylate) plate with holes and earth pillar A is 2～5cm.
Described earth pillar B is the lucite tube of internal diameter 2～40cm, wall thickness 0.2～1cm.
Described earth pillar B is provided with scale 21.
The vertical height h at described overflow pipe distance earth pillar A top is more than the maximum capillary rise height of the sample being housed in earth pillar A.
Described overflow pipe is the lucite tube of internal diameter 0.5～2cm, wall thickness 0.2～0.5cm, 20～50cm bottom its distance earth pillar B.
Described feed pipe is the lucite tube of internal diameter 0.5～2cm, wall thickness 0.2～0.5cm, 35～60cm bottom its distance earth pillar B.
The bottom of earth pillar A and earth pillar B is equipped with support 20, and earth pillar support is the poly (methyl methacrylate) plate of four high 10cm, is connected by the bottom of chloroform with earth pillar A.
Layering sample 5 it is placed with in the sample room of earth pillar A.
Job step that capillary rise height and specific yield measure is as follows to utilize capillary rise height of the present utility model and measurer of supplying water amount to carry out:
With reference to Fig. 1, first the quality such as sample segmentation (every layer of 5cm) are packed into earth pillar A, interlayer hacking, it is prevented that the formation that interlayer runs off, are then sequentially completed capillary rise height and measure with specific yield:
(1) capillary rise height measures:
1, closing switch A, opens switch C, then opens switch B, stablizes and supply water lentamente, the flow Q of recording flowmeter B2。
2, when effusion meter A starts working, water column determines head supply earth pillar A moisture, starts timing t=t0, now starts to observe (water column water surface H=H in earth pillar A0Capillary rise phenomenon above).
3, as the flow Q of effusion meter A record1=Q2Time, timing t=t1, closing switch B, stop supplying water.
(2) specific yield measures:
4, now earth pillar/water column initial water level H=H is recorded0, closing switch C；Open switch A, right side water column (earth pillar B) bottom discharge；When right side water column water level decreasing to arbitrary height H=H2Time, closing switch A.
5, opening switch C, left side earth pillar (earth pillar A) is at pressure reduction (H0-H1) under effect, motion in the water water column to the right (earth pillar B) of left side earth pillar (earth pillar A), until both sides water level is equal, record now earth pillar and water column water level H1。
6, so, specific yield μ=(H2-H1)/(H2-H0)。
Capillary rise height of the present utility model and measurer of supplying water amount simple in construction, easy to use, can the simultaneously capillary rise height of Accurate Determining ground and specific yield, be with a wide range of applications.As extensively with in hydrogeological study, student can be contributed to as instruments used for education and is best understood from the measuring principle of specific yield and capillary rise height；And groundwater resources EQUILIBRIUM CALCULATION FOR PROCESS, diving dynamic prediction, the calculating of phreatic water allowable exploitation, farmland drainage ditch, hidden pipe ditch depth, distance computation, field irrigation and drain calculation, the Irrigation Infiltration supply hydrogeological parameter calculation such as coefficient, Rain penetration supply variations can be applied in aborning, and in Agricultural Drain Project design, bearing capacity of foundation slab and freeze injury evaluation study.
Claims (9)
1. a capillary rise height and measurer of supplying water amount, including the earth pillar that 2 upper bottom surface openings, bottom surface are closed, 2 earth pillar respectively earth pillar A and earth pillar B, it is characterized in that: within earth pillar A, be connected with poly (methyl methacrylate) plate with holes, the upper surface of poly (methyl methacrylate) plate with holes is equipped with gauze, cavity more than poly (methyl methacrylate) plate with holes is the sample room for placing sample, and the cavity between the bottom surface of poly (methyl methacrylate) plate with holes and earth pillar A is steady hydroecium, and the bottom surface of earth pillar A is provided with connecting hole A；The sidewall of earth pillar B is provided with 2 holes of differing heights, and wherein relatively low hole is spout hole, and spout hole connects with the overflow pipe being provided with current meter A, and higher hole is water supply hole, and water supply hole is connected with the feed pipe being provided with switch B and current meter B；The bottom surface of earth pillar B is provided with connecting hole B and osculum, and the connecting hole B of earth pillar B connects with the connecting hole A of earth pillar A bottom surface by being provided with the connecting tube of switch C, and the osculum of earth pillar B connects with the drain pipe being provided with switch A.
2. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: described earth pillar A is the lucite tube of internal diameter 2～40cm, wall thickness 0.2～1cm, and the distance of the bottom surface of poly (methyl methacrylate) plate with holes and earth pillar A is 2～5cm.
3. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: described earth pillar B is the lucite tube of internal diameter 2～40cm, wall thickness 0.2～1cm.
4. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: described earth pillar B is provided with scale.
5. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: the vertical height h at described overflow pipe distance earth pillar A top is more than the maximum capillary rise height of the sample being housed in earth pillar A.
6. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: described overflow pipe is the lucite tube of internal diameter 0.5～2cm, wall thickness 0.2～0.5cm, 20～50cm bottom its distance earth pillar B.
7. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: described feed pipe is the lucite tube of internal diameter 0.5～2cm, wall thickness 0.2～0.5cm, 35～60cm bottom its distance earth pillar B.
8. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: the bottom of earth pillar A and earth pillar B is equipped with support.
9. capillary rise height according to claim 1 and measurer of supplying water amount, it is characterised in that: it is placed with layering sample in the sample room of earth pillar A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173256.7U CN205384209U (en) | 2016-03-08 | 2016-03-08 | Capillary rise height and feedwater degree apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173256.7U CN205384209U (en) | 2016-03-08 | 2016-03-08 | Capillary rise height and feedwater degree apparatus |
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| Publication Number | Publication Date |
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| CN205384209U true CN205384209U (en) | 2016-07-13 |
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| CN201620173256.7U Expired - Fee Related CN205384209U (en) | 2016-03-08 | 2016-03-08 | Capillary rise height and feedwater degree apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806761A (en) * | 2016-03-08 | 2016-07-27 | 中国地质大学（武汉） | Simultaneous determination method and determination device of capillary-rise height and specific water yield |
| CN107064463A (en) * | 2017-04-28 | 2017-08-18 | 中国农业科学院农田灌溉研究所 | Buried soil column leaching device |
| CN110208497A (en) * | 2019-07-17 | 2019-09-06 | 吉林大学 | A kind of portable soil specific yield tester and test method |
-
2016
- 2016-03-08 CN CN201620173256.7U patent/CN205384209U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806761A (en) * | 2016-03-08 | 2016-07-27 | 中国地质大学（武汉） | Simultaneous determination method and determination device of capillary-rise height and specific water yield |
| CN105806761B (en) * | 2016-03-08 | 2018-07-06 | 中国地质大学（武汉） | A kind of capillary rise height and specific yield while assay method and measurement device |
| CN107064463A (en) * | 2017-04-28 | 2017-08-18 | 中国农业科学院农田灌溉研究所 | Buried soil column leaching device |
| CN110208497A (en) * | 2019-07-17 | 2019-09-06 | 吉林大学 | A kind of portable soil specific yield tester and test method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20170308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |