CN201965073U - Comprehensive experimental device for testing permeability coefficient, water yield and water storage coefficient - Google Patents
Comprehensive experimental device for testing permeability coefficient, water yield and water storage coefficient Download PDFInfo
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- CN201965073U CN201965073U CN2010206417063U CN201020641706U CN201965073U CN 201965073 U CN201965073 U CN 201965073U CN 2010206417063 U CN2010206417063 U CN 2010206417063U CN 201020641706 U CN201020641706 U CN 201020641706U CN 201965073 U CN201965073 U CN 201965073U
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Abstract
The utility model provides a comprehensive experimental device for testing the permeability coefficient, the water yield and the water storage coefficient. The comprehensive experimental device comprises a sand soil container as main body, wherein a round hole plate with a screen mesh is arranged at the bottom of the container, a graduated pressure-measuring tube is connected below the left side of the round hole plate, a row of pressure-measuring tube adapters with screen meshes are connected on the right side of the round hole plate and connected with pressure-measuring tubes which are arranged on a pressure-measuring plate through pressure-measuring connection tubes, and a small cylinder with exhaust holes is arranged at the lower part of the container and connected with a water supply container on the left and a measuring cup through connecting pipes respectively; a first valve switch, a second valve switch and a third valve switch are arranged on the connecting pipes; and the first valve switch is positioned between the sand soil container and the water supply container, the second valve switch is positioned between the sand soil container and a metering container, and the third valve switch is positioned between a water inlet pipe and the water supply container. The utility model has the advantages as follows: the device can determine the permeability coefficient, the water yield and the water storage coefficient of sand soil under a certain water level condition, and can meet the needs for in-situ tests of samples in water-saturated state.
Description
Technical field
The utility model relates to a kind of experimental provision, and particularly saturated sand discharges and stores the comprehensive experimental device that the water yield is come calculation permeability coefficient, specific yield and water storage coefficient under certain water-head effect.
Background technology
In hydrogeology and engineering geologic investigation, correct evaluation contains, infiltration coefficient, specific yield and the water storage coefficient etc. of water-resisting layer, is the key index of estimating hydrogeological condition.For research contain (every) water layer is under different water-head effects, the change procedure of its water level and flow, thereby can access the relevant parameters value, pass through the sand body with this experimental provision simulation current under the condition of different water-heads, the motion of generation seepage flow, be not only research contain (every) reliable method of water layer parameter, also be a kind of important means of mechanism experiment under the state of saturation of research porous medium.Therefore, design a kind of under saturation conditions, the experimental provision of test sand body infiltration coefficient, specific yield and water storage coefficient, this for evaluation contain, the permeance property of water-resisting layer, the performance that feeds water and storge quality etc., have the important project practical significance.
At present, research contains, the perviousness of water-resisting layer is generally measured with the darcy instrument, specific yield is generally measured with the specific yield instrument, for with a kind of sand layer, measure at twice, not only consuming time, the testing expense height, more important bigger to sand original position perturbation, there is bigger error between actual parameter value and the apparatus measures value, measure numerical value and can not reflect on-the-spot physical condition.In addition, also can obtain above parameter by large-scale bailing test, but the expense cost height.Therefore, be necessary to develop the comprehensive experimental device that can satisfy this respect requirement.
The utility model content
Technical problem to be solved in the utility model provides a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient.
The utility model provides a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient, comprise the water receptacle that adds that has rule, first, second, third valve switch, sand container, the piezometric tube that has scale, a plurality of pressure measurement pipe nipple, pressure measurement connecting pipe, piezometric tube, metering graduated cylinder, water inlet pipe, pressure measurement plate, timer, and connecting pipe;
Sand container bottom end cover is a centre circular poroid plate with holes, the left side of sand container connects a pressure measurement pipe nipple down, pressure measurement pipe nipple other end connection one has the piezometric tube of scale, the right side of sand container is connected with a plurality of pressure measurement pipe nipples from top to bottom, each pressure measurement pipe nipple is connected with a piezometric tube on the pressure measurement plate by a pressure measurement connecting pipe respectively, the bottom of sand container is connected with the narrow meshed roundlet tube of a top end opening and bottom, roundlet tube top end opening just in time covers the hole of circular poroid plate, the below of roundlet tube sand container is provided with a connecting pipe, the vent port of described little cylinder is communicated with connecting pipe, described connecting pipe also respectively with have rule add water receptacle and the metering graduated cylinder link to each other, describedly add the water receptacle opening down, described metering graduated cylinder is positioned at connecting pipe below and opening up, water inlet pipe is connected to and adds water receptacle, be provided with first on the connecting pipe, second, the 3rd valve switch, described first valve switch is arranged on the sand container and adds between the water receptacle, described second valve switch is arranged between sand container and the metering graduated cylinder, described the 3rd valve switch is arranged on water inlet pipe and adds between the water receptacle, and the time of experiment is carried out record by timer.
Fine and close circular silk screen is set on the poroid plate of described circle with holes.
All have circular gauze in the described pressure measurement pipe nipple.
Described timer is fixed on the pressure measurement plate.
Described sand container and add water receptacle and be transparent cylinder.
Described pressure measurement connecting pipe uses rubber tube.
Advantage of the present utility model is: use this utility model, under saturation conditions, the sand layer is under certain hydraulics, the realization sand is released water and water storage process, observe the variation of its water level and flow, calculate the parameter of sand, for correct estimate contain (every) permeance property, feedwater performance and the water storage performance of layer provide the reliable technique parameter.
Description of drawings
Fig. 1 is a kind of structural representation of testing the comprehensive experimental device of infiltration coefficient, specific yield and water storage coefficient of the utility model.
Among the figure: 1-adds water receptacle, 2-rule, 3-1,3-2,3-3-valve switch, 4-sand container, 5-has the piezometric tube of scale, 6-pressure measurement pipe nipple, 7-pressure measurement connecting pipe, the 8-piezometric tube, 9-pressure measurement pipe nipple, 10-measures graduated cylinder, the 11-water inlet pipe, 12-pressure measurement plate, the circular poroid plate of 13-, the circular silk screen of 14-, 15-timer, the little cylinder of 16-, the 17-connecting pipe, 18 circular gauzes, 19-experiment table.
Embodiment
For making goal of the invention of the present utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the comprehensive experimental device of described test infiltration coefficient, specific yield and water storage coefficient comprise have a rule 2 add water receptacle 1, valve switch 3-1,3-2,3-3, sand container 4, the piezometric tube 5, pressure measurement pipe nipple 6,9, pressure measurement connecting pipe 7, piezometric tube 8, metering graduated cylinder 10, water inlet pipe 11, pressure measurement plate 12, the timer 15 that have scale, and connecting pipe 17.This comprehensive experimental device is placed on the experiment table 19.
Described sand container 4 and add water receptacle 1 and be right cylinder, pressure measurement connecting pipe 7 uses rubber tubes.
Before the test, get the original state sand, put down gently and pack into, and kept the coupling of sand and sand container 4 limit walls according to sand container 4 sizes.Simultaneously, close all valve switch 3-1,3-2,3-3 on the connecting pipe 17.
In the test, at first open valve switch 3-3,3-1, simultaneously, valve-off switch 3-2, water inlet pipe 11 slowly adds water by connecting pipe 17 to sand container 4, sand body in sand container 4 presents when satisfying water state, valve-off switch 3-1,3-3, open valve switch 3-2, allow the water of saturated sand ooze out, and flow into metering graduated cylinder 10, simultaneously, the data of each piezometric tube 8 on graduated piezometric tube 5 of recording strip and the pressure measurement plate 12, the data such as time of the timer 15 of the flow of corresponding metering graduated cylinder 10 and correspondence, when waiting piezometric level to reach certain position, valve-off switch 3-2.And then open valve switch 3-2, allow the water of sand ooze out, and inflow metering graduated cylinder 10, simultaneously, the data such as time of the timer 15 of the flow of the metering graduated cylinder 10 of the data of each piezometric tube 8 on graduated piezometric tube 5 of recording strip and the pressure measurement plate 12, correspondence and correspondence, when reaching certain position Deng piezometric level, valve-off switch 3-2 again, and repeat said process again, till the mouth of pipe of the piezometric tube that has scale 5 on the left of sand container 4 observation port water levels reach, valve-off switch 3-2.According to the physical dimension of above data and sand container 4, utilize the correlation computations formula to obtain the infiltration coefficient and the specific yield value of original position sand.
Then, valve-off switch 3-2,3-1, open valve switch 3-3, add water to 9/10 of whole height to adding water receptacle 1, open valve switch 3-1 then by water inlet pipe 11, while valve-off switch 3-3, under the head difference effect, the water that adds in the water receptacle 1 slowly goes into to be seeped into sand container 4, during to a certain moment, valve-off switch 3-1, the water level of the water level of the piezometric tube that has scale 5 of observation and record sand container 4, the water level that adds water receptacle 1, piezometric tube 8; And then open valve switch 3-1, the water that adds in the water receptacle 1 continues slowly to go into to be seeped into sand container 4, during to a certain moment, valve-off switch 3-1 again, the water level of the water level of the piezometric tube that has scale 5 of observation and record sand container 4, the water level that adds water receptacle 1, piezometric tube 8; Above repeatedly process is till the water level of sand container 4 rises to the top of sand container 4.Put above data in order,, calculate at infiltration coefficient that adds sand under the water condition and water storage coefficient according to the correlation computations formula.
Claims (7)
1. comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient, it is characterized in that, comprise the water receptacle that adds that has rule, first, second, third valve switch, sand container, the piezometric tube that has scale, a plurality of pressure measurement pipe nipple, pressure measurement connecting pipe, piezometric tube, metering graduated cylinder, water inlet pipe, pressure measurement plate, timer, and connecting pipe;
Sand container bottom end cover is a centre circular poroid plate with holes, the left side of sand container connects a pressure measurement pipe nipple down, pressure measurement pipe nipple other end connection one has the piezometric tube of scale, the right side of sand container is connected with a plurality of pressure measurement pipe nipples from top to bottom, each pressure measurement pipe nipple is connected with a piezometric tube on the pressure measurement plate by a pressure measurement connecting pipe respectively, the bottom of sand container is connected with the narrow meshed roundlet tube of a top end opening and bottom, roundlet tube top end opening just in time covers the hole of circular poroid plate, the below of sand container is provided with a connecting pipe, the vent port of described little cylinder is communicated with connecting pipe, described connecting pipe also respectively with have rule add water receptacle and the metering graduated cylinder link to each other, describedly add the water receptacle opening down, described metering graduated cylinder is positioned at connecting pipe below and opening up, water inlet pipe is connected to and adds water receptacle, be provided with first on the connecting pipe, second, the 3rd valve switch, described first valve switch is arranged on the sand container and adds between the water receptacle, described second valve switch is arranged between sand container and the metering graduated cylinder, described the 3rd valve switch is arranged on water inlet pipe and adds between the water receptacle, and the time of experiment is carried out record by timer.
2. a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient as claimed in claim 1 is characterized in that, fine and close circular silk screen is set on the poroid plate of described circle with holes.
3. a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient as claimed in claim 1 is characterized in that, all has circular gauze in the described pressure measurement pipe nipple.
4. a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient as claimed in claim 1 is characterized in that described timer is fixed on the pressure measurement plate.
5. a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient as claimed in claim 1 is characterized in that, the described water receptacle that adds is a transparent cylinder.
6. a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient as claimed in claim 1 is characterized in that, described pressure measurement connecting pipe uses rubber tube.
7. a kind of comprehensive experimental device of testing infiltration coefficient, specific yield and water storage coefficient as claimed in claim 1 is characterized in that described sand container is a transparent cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206417063U CN201965073U (en) | 2010-12-03 | 2010-12-03 | Comprehensive experimental device for testing permeability coefficient, water yield and water storage coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206417063U CN201965073U (en) | 2010-12-03 | 2010-12-03 | Comprehensive experimental device for testing permeability coefficient, water yield and water storage coefficient |
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| Publication Number | Publication Date |
|---|---|
| CN201965073U true CN201965073U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206417063U Expired - Fee Related CN201965073U (en) | 2010-12-03 | 2010-12-03 | Comprehensive experimental device for testing permeability coefficient, water yield and water storage coefficient |
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| CN (1) | CN201965073U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033457A (en) * | 2012-12-14 | 2013-04-10 | 长春市计量检定测试技术研究院 | Calibrator for concrete penetrometer |
| CN105628612A (en) * | 2016-02-02 | 2016-06-01 | 河海大学 | Apparatus and method for inducing water release of clay confined aquifer by constant drawdown |
| CN105651677A (en) * | 2016-03-08 | 2016-06-08 | 中国地质大学（武汉） | Geotechnical parameter and property tester capable of simultaneously testing specific yield and osmotic coefficient |
| 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 |
| 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 |
| CN109000967A (en) * | 2018-09-20 | 2018-12-14 | 中国水利水电科学研究院 | The System and method for of the acquisition of native stone binary medium earth pillar and hydrologic parameter measurement |
| CN109900615A (en) * | 2019-03-13 | 2019-06-18 | 镇江市建设工程质量检测中心有限公司 | Soil permeability coefficient test device and its test method |
-
2010
- 2010-12-03 CN CN2010206417063U patent/CN201965073U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033457A (en) * | 2012-12-14 | 2013-04-10 | 长春市计量检定测试技术研究院 | Calibrator for concrete penetrometer |
| CN105628612A (en) * | 2016-02-02 | 2016-06-01 | 河海大学 | Apparatus and method for inducing water release of clay confined aquifer by constant drawdown |
| CN105651677A (en) * | 2016-03-08 | 2016-06-08 | 中国地质大学（武汉） | Geotechnical parameter and property tester capable of simultaneously testing specific yield and osmotic coefficient |
| 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 |
| CN105651677B (en) * | 2016-03-08 | 2019-01-01 | 中国地质大学（武汉） | A kind of Geotechnical Parameter property analyzer that can measure specific yield and infiltration coefficient simultaneously |
| 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 |
| CN109000967A (en) * | 2018-09-20 | 2018-12-14 | 中国水利水电科学研究院 | The System and method for of the acquisition of native stone binary medium earth pillar and hydrologic parameter measurement |
| CN109900615A (en) * | 2019-03-13 | 2019-06-18 | 镇江市建设工程质量检测中心有限公司 | Soil permeability coefficient test device and its test method |
| CN109900615B (en) * | 2019-03-13 | 2024-04-26 | 镇江市建设工程质量检测中心有限公司 | Soil permeability coefficient testing device and testing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20111203 |