CN103091227B - Novel Guelph permeameter for measuring soil permeability - Google Patents
Novel Guelph permeameter for measuring soil permeability Download PDFInfo
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- CN103091227B CN103091227B CN201310025983.XA CN201310025983A CN103091227B CN 103091227 B CN103091227 B CN 103091227B CN 201310025983 A CN201310025983 A CN 201310025983A CN 103091227 B CN103091227 B CN 103091227B
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Abstract
The invention discloses a novel Guelph permeameter for measuring soil permeability. The novel Guelph permeameter is characterized by comprising two parts, namely a pressure regulation chamber (1) and a water supply chamber. The novel Guelph permeameter disclosed by the invention achieves the easier implementation of field measurement by overcoming the defect of limitation that the water supply chamber is originally required to be placed in a well, ensures that a measured value is more accurate and representative by reducing the destroy and influence on soil by determining the position of the permanent water level inside a drill hole through the regulation of the pressure regulation chamber (1) and an air inlet pipe and is greatly enlarged in use range by more relaxing the specification requirements of the drill hole.
Description
technical field:
The present invention relates to soil physics technical field, is a kind of novel Guelph infiltration instrument of measuring soil permeability, for the measurement of soil permeability parameter specifically.
Background technology
Soil permeability performance is the important physical property of soil, has determined precipitation infiltration and runoff ratio, is also that the holard, solute migration and crop growth model, calculating soil profile water flux and design are irrigated, an important soil parameter of unwatering system engineering.Meanwhile, about holard conduction parameter obtain and grasp for understand and administer the holard and surface water pollution, the soil erosion is also extremely important.Therefore, obtaining rapidly and exactly soil water infiltration parameter tool is of great significance.Field in-site detecting Soil Infiltration Characteristic is the key that soil water flow dynamic process is described in research, and researcher has carried out large quantity research around this problem both at home and abroad.
Guelph infiltration instrument is a kind ofly to utilize three-dimensional to infiltrate principle to measure the surveying instrument of field saturated hydraulic conductivity, because of its measure in the wild holard force parameter have save time, water-saving, the advantage such as easy and simple to handle be widely used.Specifically, Guelph infiltration instrument be utilize constant boring infiltrate principle and a set of portable in-site detecting field soil saturated hydraulic conductivity that designs infiltrate device.The concrete operations that constant head boring method is measured field saturated hydraulic conductivity are with the boring of earth boring auger original position, general hole depth 0-25cm, diameter is less than 10cm, well is accomplished fluently rear with the water supply of Ma Shi bottle, water lever fluctuating in observation port, after the depth of water in hole maintains a constant altitude a period of time, think to infiltrate to have reached steady state (SS), at this moment obtain stable state flow velocity by Ma Shi bottle reading.While maintaining constant water level in well due to Guelph infiltration instrument, take the mode of malleation, when measurement, a part for the water supply chamber of Guelph infiltration instrument need to be put in seepage hole, or the end of draft tube and the water level of control that makes Guelph infiltration instrument of digging pit outside hole is positioned at sustained height, thereby for using and brought inconvenience in the wild, having affected the precision of measuring, is key issue urgently to be resolved hurrily in the application of Guelph infiltration instrument.
summary of the invention:
the object of the invention is to overcome the deficiency of above-mentioned prior art, and a kind of novel Guelph infiltration instrument of measuring soil permeability be provided, mainly solve the problems such as existing Guelph infiltration instrument measurement inconvenience and precision are lower,
Technical scheme of the present invention is: a kind of novel Guelph infiltration instrument of measuring soil permeability, and its special character is to comprise stilling chamber and water supply chamber two parts; Described water supply chamber lower end sealing, water supply chamber draft tube moving up and down is inserted into its inside by water supply chamber upper end, and there is an air exhaust nozzle water supply chamber upper end, and there is water inlet water supply chamber top, and water inlet is sealed by water supply chamber sealing-plug; The sealing of described stilling chamber lower end, there is a filler upper end, and seals with stilling chamber sealing-plug, and stilling chamber draft tube moving up and down is inserted its inside by stilling chamber upper end, and there is an outlet nozzle conditioning chamber upper end; Described outlet nozzle and water supply chamber draft tube are connected by connecting hose, water delivering orifice with gauge tap is arranged at water supply chamber bottom, water delivering orifice connects feed pipe, has a flowmeter for Flow Observation between gauge tap and feed pipe, and feed pipe is placed in boring; Described stilling chamber draft tube end is to the distance h of the water surface in stilling chamber
1with the distance h of water supply chamber draft tube end to the interior free-water level of boring
2must equate.
Further, described pressure controlling chamber is the organic glass cylinder of the closed at both ends of the long 50 ~ 100cm of diameter 5 ~ 10cm.
Further, described water supply chamber is the organic glass cylinder of diameter 10 ~ 20cm length closed at both ends that is 50 ~ 100cm.
Compared with the prior art a kind of novel Guelph infiltration instrument of measuring soil permeability of the present invention has outstanding substantive distinguishing features and marked improvement, 1, in boring, the realization of constant water level has regulated by negative pressure, overcome the restriction that originally necessarily requires water supply chamber to put into boring, field survey is more easily implemented, effectively reduced labor workload, the time of having saved has been improved work efficiency significantly; 2, because water supply chamber is outside boring, reduced Latent destruction and impact on hole wall soil, made measured value more accurately with representative; 3, looser to the specification requirement of boring, usable range increases greatly.
brief description of the drawings:
Fig. 1 is structural representation of the present invention.
Drawing explanation:
1 stilling chamber, 2 water supply chambers, 3 feed pipes, 4 borings, 5 flowmeters, 6 stilling chamber draft tube, 7 water supply chamber draft tube, 8 water supply chamber sealing-plugs, 9 outlet nozzles, 10 air exhaust nozzles, 11 connecting hoses, 12 water delivering orifices, 13 gauge tap, 14, stilling chamber sealing-plug.
Embodiment:
For Comprehension and Implementation better, below in conjunction with accompanying drawing, the present invention is described further.
Embodiment 1, referring to Fig. 1, need to select suitable stilling chamber 1 and water supply chamber 2 according to design, water supply chamber 2 lower end sealings, pressure controlling chamber 1 is the organic glass cylinder of the closed at both ends of the long 50 ~ 100cm of diameter 5 ~ 10cm, and water supply chamber 2 is the organic glass cylinder of diameter 10 ~ 20cm length closed at both ends that is 50 ~ 100cm; Water supply chamber draft tube 7 moving up and down is inserted into its inside by water supply chamber 2 upper ends, there is an air exhaust nozzle 10 water supply chamber 2 upper ends, there is water inlet water supply chamber 2 tops, water inlet can be sealed by water supply chamber sealing-plug 8, stilling chamber 1 lower end sealing, upper end has a filler also to seal with stilling chamber sealing-plug 14, stilling chamber draft tube 6 moving up and down is inserted its inside by conditioning chamber 1 upper end, there is an outlet nozzle 9 conditioning chamber 1 upper end, and outlet nozzle 9 is connected by connecting hose 11 with draft tube 7; There is the water delivering orifice 12 with gauge tap 13 water supply chamber 2 following sides, and water delivering orifice 12 is connected with feed pipe 3, have a flowmeter 5 for Flow Observation between gauge tap 13 and feed pipe 3, and feed pipe 3 is placed in boring 4; Stilling chamber draft tube 6 ends are to the distance h of the stilling chamber 1 interior water surface
1with the distance h of water supply chamber draft tube 7 ends to the 4 interior free-water levels of holing
2must equate; Form the novel Guelph infiltration instrument of measurement soil permeability of the present invention.
A kind of novel Guelph infiltration instrument of measuring soil permeability of the present invention, after measuring system connects, first closing control switch 13 before experiment starts, water in stilling chamber 1 and water supply chamber 2 is filled into precalculated position, utilize seal that stilling chamber 1 and water supply chamber 2 are sealed, adjust as required the position of draft tube, stilling chamber draft tube 6 end-to-end distances are designated as h from the distance of the stilling chamber 1 interior water surface
1, water supply chamber draft tube 7 end-to-end distances are designated as h from the distance of the interior predetermined water level of boring
2, and require h
2equal h
1, accordingly to the boring 4 interior precalculated positions that add water fast, and open switch 13, utilize air-extractor to start to bleed by air exhaust nozzle 10, infiltrate experiment and start until draft tube 6,7 all starts air inlet, observe the numerical value of flowmeter 5, treat that stability of flow records stable flow value, experiment finishes.In conjunction with the bathymetric data in specifications parameter and the boring of boring, utilize known formula can calculate the relevant permeability parameter such as saturated hydraulic conductivity of this position soil.
Claims (3)
1. measure a novel Guelph infiltration instrument for soil permeability, it is characterized in that comprising pressure controlling chamber (1) and water supply chamber (2) two parts; Described water supply chamber (2) lower end sealing, water supply chamber draft tube moving up and down (7) is inserted into its inside by water supply chamber (2) upper end, there is an air exhaust nozzle (10) water supply chamber (2) upper end, and there is water inlet water supply chamber (2) top, and water inlet is sealed by water supply chamber sealing-plug (8); Described lower end, pressure controlling chamber (1) sealing, there is a filler upper end, and with stilling chamber sealing-plug (14) sealing, stilling chamber draft tube moving up and down (6) is inserted its inside by upper end, pressure controlling chamber (1), there is an outlet nozzle (9) upper end, pressure controlling chamber (1); Described outlet nozzle (9) is connected by connecting hose (11) with water supply chamber draft tube (7), the water delivering orifice (12) of one band gauge tap (13) is arranged at water supply chamber (2) bottom, water delivering orifice (12) connects feed pipe (3), between gauge tap (13) and feed pipe (3), have a flowmeter for Flow Observation (5), feed pipe (3) is placed in boring (4); Described stilling chamber draft tube (6) end is to the distance h of the interior water surface in pressure controlling chamber (1)
1with the distance h of water supply chamber draft tube (7) end to boring (4) interior free-water level
2must equate.
2. a kind of novel Guelph infiltration instrument of measuring soil permeability according to claim 1, is characterized in that the organic glass cylinder of described pressure controlling chamber (1) for the closed at both ends of diameter 5 ~ 10cm, long 50 ~ 100cm.
3. a kind of novel Guelph infiltration instrument of measuring soil permeability according to claim 1, is characterized in that the organic glass cylinder of described water supply chamber (2) for diameter 10 ~ 20cm, the length closed at both ends that is 50 ~ 100cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025983.XA CN103091227B (en) | 2013-01-24 | 2013-01-24 | Novel Guelph permeameter for measuring soil permeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310025983.XA CN103091227B (en) | 2013-01-24 | 2013-01-24 | Novel Guelph permeameter for measuring soil permeability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103091227A CN103091227A (en) | 2013-05-08 |
| CN103091227B true CN103091227B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310025983.XA Expired - Fee Related CN103091227B (en) | 2013-01-24 | 2013-01-24 | Novel Guelph permeameter for measuring soil permeability |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568700B (en) * | 2014-12-30 | 2017-01-25 | 昆明理工大学 | Adjustable soil infiltration performance detecting and loss amount sampling device |
| CN105929114A (en) * | 2016-05-03 | 2016-09-07 | 河海大学 | Test measuring cylinder device capable of simulating groundwater level variation influences |
| CN107144513B (en) * | 2017-06-26 | 2023-09-08 | 湖南农业大学 | Soil moisture infiltration rate testing arrangement |
| CN108007840A (en) * | 2017-12-11 | 2018-05-08 | 合肥工业大学 | A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition |
| CN110927043B (en) * | 2019-12-11 | 2022-04-19 | 天津市市政工程设计研究院 | Device for rapidly measuring plain soil filling permeability coefficient in sponge city construction |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4319976A1 (en) * | 1993-06-11 | 1995-02-02 | Blz Geotechnik Gmbh | Method and arrangement for determining the permeability of a ground (soil) formation |
| DE19946287A1 (en) * | 1999-09-27 | 2001-04-05 | Matthias Gieska | Permeator, for determining hydraulic conductivity of ground, comprises feeding water into bore hole avoiding sludge formation, and electronically controlling the level, |
| JP2002004257A (en) * | 2000-06-23 | 2002-01-09 | Nittoc Constr Co Ltd | Permeability test method and device therefor |
| CN2788179Y (en) * | 2005-04-30 | 2006-06-14 | 张振华 | Portable soil penetrating parameter measuring device |
| CN101140213A (en) * | 2007-10-11 | 2008-03-12 | 西北农林科技大学 | Full-automatic negative pressure infiltration measuring device |
| CN201615869U (en) * | 2010-03-02 | 2010-10-27 | 中国水利水电科学研究院 | Device for measuring saturated hydraulic conductivity of field earth in situ |
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Owner name: LUDONG UNIVERSITY Free format text: FORMER OWNER: ZHANG ZHENHUA Effective date: 20141103 |
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Effective date of registration: 20141103 Address after: 264025 Hongqi Road, Zhifu District, Shandong, China, No. 186, No. Applicant after: Ludong University Address before: 264025 School of geography and planning, Ludong University, 186 Hongqi Road, Zhifu District, Shandong, Yantai Applicant before: Zhang Zhenhua |
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