CN206756653U - Determine head and varying head soil permeability coefficient measure combination unit - Google Patents

Determine head and varying head soil permeability coefficient measure combination unit Download PDF

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Publication number
CN206756653U
CN206756653U CN201720387153.5U CN201720387153U CN206756653U CN 206756653 U CN206756653 U CN 206756653U CN 201720387153 U CN201720387153 U CN 201720387153U CN 206756653 U CN206756653 U CN 206756653U
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China
Prior art keywords
water
pipe
head
supply
feed pipe
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Expired - Fee Related
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CN201720387153.5U
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Chinese (zh)
Inventor
石培君
刘洪光
何新林
龚萍
阿尔娜古丽
陆华天
李开明
李鑫鑫
李红
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Shihezi University
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Shihezi University
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Abstract

The utility model belongs to saturated soil osmotic coefficient investigating technical field, and in particular to a kind of to determine head and varying head soil permeability coefficient measure combination unit.It is a kind of to determine head and varying head soil permeability coefficient measure combination unit, mainly include support, the support includes top plate, backboard and base, Markov bottle is placed with the top plate, it is fixed with backboard and determines head feed pipe, graduated scale, varying head feed pipe, described to determine head feed pipe upper end and be connected with Markov bottle, lower end is connected with water-supply-pipe, the varying head feed pipe upper end is opening, and lower end is also connected with water-supply-pipe;The water-supply-pipe lower end is connected with test device inner space.The utility model is simple in construction, convenient and practical, can solve the saturation infiltrated water of cohesive soil and sandy loam with the conditions of, can effectively reduce error, reduces the complex process of experiment, improves conventional efficient, increases the accuracy and reliability of measure.

Description

Determine head and varying head soil permeability coefficient measure combination unit
Technical field
The utility model belongs to saturated soil osmotic coefficient investigating technical field, and in particular to a kind of to determine head and varying head soil Earth osmotic coefficient investigating combines the unit.
Background technology
In the case that saturated hydraulic conductivity in soil refers to that soil whole hole is each filled with water, under the effect of unit water potential gradient, Pass through the water flux density or seepage flow speed of the unit area soil of Transverse to the flow direction.Saturated hydraulic conductivity in soil is important soil One of hydraulic parameters, are an important soil parameters of irrigation and drainage engineering, and the important parameter in numerical model simulation, shadow The migration of moisture, solute in soil is rung, the measure and accuracy of soil permeability coefficient determine the process of moisture and salt regime. The two methods commonly used at present in laboratory, to determine head permeability test and variable head permeability test, both assay methods are all It is to be carried out based on independent experimental rig with the conditions of, lacks a kind of combination unit in the prior art, and this combination unit is It can be used for determining head permeability test, can be used for variable head permeability test, and be avoided that permeability test by temperature and steaming The influence of hair, greatly improve the accuracy of result of the test.
The content of the invention
The purpose of this utility model is to provide a kind of simple in construction, and convenient and practical determines head and varying head combination infiltration Factor detection device, solve the saturation infiltrated water of cohesive soil and sandy loam with the conditions of, can effectively reduce error, improve real The accuracy tested.
Determine head and varying head soil permeability coefficient measure combination unit the utility model discloses a kind of, it is characterised in that Mainly include support, the support includes top plate, backboard and base, Markov bottle is placed with the top plate, solid on backboard Fixed be provided with determines head feed pipe, graduated scale, varying head feed pipe, described to determine head feed pipe upper end and be connected with Markov bottle, under End is connected with water-supply-pipe, and the varying head feed pipe upper end is opening, and lower end is also connected with water-supply-pipe;Under the water-supply-pipe End is connected with test device inner space;
The test device includes cylinder, and bottom is provided with water strainer in the cylinder, is in the water strainer lower space Cistern, cistern are provided with delivery port, and the water strainer upper space is followed successively by filtrate space, cutting ring soil sample space, fitros sky Between, filtrate is placed in the filtrate space, the cutting ring with soil sample is placed in the cutting ring soil sample space, and the fitros space is placed Fitros.
Preferably, described head feed pipe upper end of determining is connected through top plate by elbow I with Markov bottle, lower end leads to Elbow II is crossed with water-supply-pipe to be connected;The varying head feed pipe upper end is fixed through top plate, and lower end passes through threeway and water-supply-pipe It is connected;Water-supply-pipe between elbow II and threeway is provided with ball valve I, and the water-supply-pipe between threeway and test device is provided with ball Valve II, the outflow end of the water-supply-pipe are passed directly into cutting ring soil sample.
Preferably, the graduated scale is set close to varying head feed pipe.
Utility model works principle:
Before on-test, first fitros and filtrate are immersed in water up to saturation, then in the water strainer of test device On, it is being put into filtrate, cutting ring soil sample, fitros successively.When head experiment is determined in development, ball valve I is opened, directly using Markov bottle through fixed Head feed pipe and fitros are slowly drenched to soil, when having the globule on water storage pool wall, then it is assumed that soil sample reaches saturation, opens Begin to test.When experiment starts, the change of water level, the volume of measurement delivery port discharge water are recorded by Markov bottle.Determine varying head During experiment, ball valve I is closed, ball valve II is opened, injects water into varying head feed pipe manually, through water-supply-pipe, fitros, make soil slow Saturation, when having the globule on water storage pool wall, then it is assumed that soil sample reaches saturation, starts to test, and passes through scale observational record water level Change, then measure the water of delivery port discharge.
Compared with prior art, the advantages of the utility model:It is simple in construction, convenient and practical, available for determine head and become water The combine measured of head infiltration coefficient, solves the saturation infiltrated water of cohesive soil and sandy loam with the conditions of, can effectively reduce mistake Difference, the complex process of experiment is reduced, improve conventional efficient, increase the accuracy and reliability of measure.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the side structure schematic view of Fig. 1 medium-height trestles.
Fig. 3 is the structural representation of test device in Fig. 1.
Shown in figure:1 is Markov bottle, and 2 be top plate, and 3 be backboard, and 4 be graduated scale, and 5 be varying head feed pipe, and 6 be elbow I, 7 is determine head feed pipe, and 8 be elbow II, and 9 be ball valve I, and 10 be threeway, and 11 be base, and 12 be ball valve II, and 13 be water-supply-pipe, 14 be test device, and 15 be fitros, and 16 be cutting ring, and 17 be soil sample, and 18 be filtrate, and 19 be delivery port, and 20 be cistern, and 21 be filter The network of rivers.
Embodiment
Embodiment 1:
Reference picture 1, Fig. 2, Fig. 3, are the structural representation of the utility model embodiment, including a kind of determine head and varying head Soil permeability coefficient measure combination unit, mainly including support, the support includes top plate 2, backboard 3 and base 11, described Markov bottle 1 is placed with top plate 2, is fixed with backboard 3 and determines head feed pipe 7, graduated scale 4, varying head feed pipe 5, institute State and determine the upper end of head feed pipe 7 and be connected with Markov bottle 1, lower end is connected with water-supply-pipe 13, the upper end of varying head feed pipe 5 For opening, lower end is also connected with water-supply-pipe 13;The lower end of water-supply-pipe 13 is connected with the inner space of test device 14;
The test device 14 includes cylinder, and bottom is provided with water strainer 21 in the cylinder, in the bottom of water strainer 21 Space is cistern 20, and cistern 20 is provided with delivery port 19, and the upper space of water strainer 21 is followed successively by filtrate space, cutting ring soil Sample space, fitros space, filtrate 18 is placed in the filtrate space, and the cutting ring with soil sample is placed in the cutting ring soil sample space 16, fitros 15 is placed in the fitros space.
The top plate 2, backboard 3, base 11 form an integral frame structure, and the varying head feed pipe 5 is organic glass Glass pipe, it is PVC hard tubes to determine head feed pipe 7, and the zero graduation line of graduated scale 4 is on top.
The Markov bottle 1 is positioned over above top plate 2, is determined head feed pipe 7 and is fixed on above backboard 3, and one end passes through top plate 2 It is connected by elbow I 6 with water supply Markov bottle, the other end is connected by elbow II 8 with threeway 10;Varying head feed pipe 5 is fixed In backboard 3, one end passes through top plate 2, and the other end is connected with threeway 10;The ball valve I 9 is located between elbow II 8 and threeway 10 On water-supply-pipe 13, for ball valve II 12 on the water-supply-pipe 13 between threeway 10 and test device, the water-supply-pipe 13 is that plastics are soft Pipe, is passed directly into cutting ring soil sample.
The utility model combines the unit the measure for being respectively used to determine head and varying head soil permeability coefficient, in on-test Before, first fitros and filtrate are immersed in water until saturation, then on the water strainer 21 of test device 14, is sequentially placed into filtrate 18th, cutting ring soil sample 17, fitros 15.When head experiment is determined in development, ball valve I 9 is opened, directly using Markov bottle 1 through determining head water supply Pipe and fitros are slowly drenched to soil, when having the globule on the wall of cistern 20, then it is assumed that soil sample reaches saturation, starts to try Test.When experiment starts, the change of water level, the volume of measurement delivery port discharge water are recorded by Markov bottle 1.Determine varying head experiment When, ball valve I 9 is closed, ball valve II 12 is opened, injects water into varying head feed pipe 5 manually, through water-supply-pipe 13, fitros 15, make soil Slow saturation, when having the globule on the wall of cistern 20, then it is assumed that soil sample reaches saturation, starts to test, and passes through scale observational record The change of water level, then measure the water that delivery port 19 is discharged.The utility model has the advantages that by determining head and varying head group Attach together and put, reduce the complex process of experiment, improve conventional efficient in laboratory, add the reliability of result of the test.
Embodiment 2:
Compared with Example 1, the different places of the present embodiment technical scheme are:The graduated scale 4 supplies close to varying head Water pipe 5 is set.

Claims (3)

1. a kind of determine head and varying head soil permeability coefficient measure combination unit, it is characterised in that described mainly including support Support includes top plate, backboard and base, and Markov bottle is placed with the top plate, is fixed with backboard and determines head water supply Pipe, graduated scale, varying head feed pipe, described to determine head feed pipe upper end and be connected with Markov bottle, lower end is connected with water-supply-pipe, The varying head feed pipe upper end is opening, and lower end is also connected with water-supply-pipe;Inside the water-supply-pipe lower end and test device Space is connected;
The test device includes cylinder, and bottom is provided with water strainer in the cylinder, is water storage in the water strainer lower space Pond, cistern are provided with delivery port, and the water strainer upper space is followed successively by filtrate space, cutting ring soil sample space, fitros space, institute Placement filtrate in filtrate space is stated, the cutting ring with soil sample is placed in the cutting ring soil sample space, and fitros is placed in the fitros space.
2. as claimed in claim 1 determine head and varying head soil permeability coefficient measure combination unit, it is characterised in that described Head feed pipe upper end of determining be connected through top plate by elbow I with Markov bottle, lower end is connected by elbow II with water-supply-pipe It is logical;The varying head feed pipe upper end is fixed through top plate, and lower end is connected by threeway with water-supply-pipe;Elbow II and threeway it Between water-supply-pipe be provided with ball valve I, the water-supply-pipe between threeway and test device is provided with ball valve II, the outflow of the water-supply-pipe End is passed directly into cutting ring soil sample.
3. as claimed in claim 1 or 2 determine head and varying head soil permeability coefficient measure combination unit, it is characterised in that institute Graduated scale is stated to set close to varying head feed pipe.
CN201720387153.5U 2017-04-13 2017-04-13 Determine head and varying head soil permeability coefficient measure combination unit Expired - Fee Related CN206756653U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108333097A (en) * 2018-04-23 2018-07-27 贵州大学 A kind of initial infiltration rate assay method of soil and its mancarried device
CN109444017A (en) * 2018-11-14 2019-03-08 扬州大学 A kind of multi-functional pavement material device for testing permeability coefficient and its test method
CN109752304A (en) * 2019-02-27 2019-05-14 中国地质大学(武汉) A kind of varying head soil permeability coefficient measurement device
CN109752305A (en) * 2019-02-27 2019-05-14 中国地质大学(武汉) A kind of constant head soil permeability coefficient measurement device
CN110850058A (en) * 2019-11-18 2020-02-28 长安大学 Leaching test device and using method thereof
CN110907332A (en) * 2019-12-11 2020-03-24 天津市市政工程设计研究院 Testing device and method for horizontal permeability coefficient of shallow soil
CN111896449A (en) * 2020-07-14 2020-11-06 中国海洋大学 Permeameter and method for measuring permeability coefficient of saturated silt
CN114518314A (en) * 2022-03-14 2022-05-20 云南云水工程技术检测有限公司 Soil material infiltration detection device
CN115290533A (en) * 2022-08-05 2022-11-04 水利部交通运输部国家能源局南京水利科学研究院 Centrifugal model test device and method for simulating soil body permeation

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108333097A (en) * 2018-04-23 2018-07-27 贵州大学 A kind of initial infiltration rate assay method of soil and its mancarried device
CN109444017A (en) * 2018-11-14 2019-03-08 扬州大学 A kind of multi-functional pavement material device for testing permeability coefficient and its test method
CN109752305B (en) * 2019-02-27 2022-09-30 中国地质大学(武汉) Constant head soil permeability coefficient measuring device
CN109752305A (en) * 2019-02-27 2019-05-14 中国地质大学(武汉) A kind of constant head soil permeability coefficient measurement device
CN109752304A (en) * 2019-02-27 2019-05-14 中国地质大学(武汉) A kind of varying head soil permeability coefficient measurement device
CN109752304B (en) * 2019-02-27 2022-11-04 中国地质大学(武汉) Variable water head soil permeability coefficient measuring device
CN110850058A (en) * 2019-11-18 2020-02-28 长安大学 Leaching test device and using method thereof
CN110850058B (en) * 2019-11-18 2023-11-14 长安大学 Leaching test device and application method thereof
CN110907332A (en) * 2019-12-11 2020-03-24 天津市市政工程设计研究院 Testing device and method for horizontal permeability coefficient of shallow soil
CN111896449A (en) * 2020-07-14 2020-11-06 中国海洋大学 Permeameter and method for measuring permeability coefficient of saturated silt
CN111896449B (en) * 2020-07-14 2021-06-01 中国海洋大学 Permeameter and method for measuring permeability coefficient of saturated silt
CN114518314A (en) * 2022-03-14 2022-05-20 云南云水工程技术检测有限公司 Soil material infiltration detection device
CN115290533A (en) * 2022-08-05 2022-11-04 水利部交通运输部国家能源局南京水利科学研究院 Centrifugal model test device and method for simulating soil body permeation

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Granted publication date: 20171215

Termination date: 20180413