CN205538958U - Device of total suction of soil and moisture migration is surveyed to indoor filter paper method - Google Patents
Device of total suction of soil and moisture migration is surveyed to indoor filter paper method Download PDFInfo
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- CN205538958U CN205538958U CN201620256864.4U CN201620256864U CN205538958U CN 205538958 U CN205538958 U CN 205538958U CN 201620256864 U CN201620256864 U CN 201620256864U CN 205538958 U CN205538958 U CN 205538958U
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- filter paper
- earth pillar
- soil
- hand sleeves
- total suction
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Abstract
The utility model discloses a device of total suction of soil and moisture migration is surveyed to indoor filter paper method, it includes an earth pillar section of thick bamboo, an earth pillar section of thick bamboo is hollow cylinder, and an earth pillar section of thick bamboo sets up on square base, and the left surface of an earth pillar section of thick bamboo is fixed and is provided with a plurality of equidistant left side sleeves, and the right flank of an earth pillar section of thick bamboo is fixed and is provided with a plurality of equidistant right side sleeves, round hole and right side round hole on the left of processing has respectively on the earth pillar section of thick bamboo lateral wall at left side sleeve and right side sleeve place, left side trepanning and right side sleeve overlap respectively and are equipped with left side survey buret and the right buret of survey. The device the pipe shaft not co -altitude department set up the module of placing filter paper, but the moisture process of migrating in the total suction of the soil of the different degree of depth of simultaneous measurement and the earth pillar.
Description
Technical field
This utility model is based on the filter paper method total suction of Indoor measurement soil, the device of Water Transport, relates to Geotechnical Engineering field.
Background technology
Filter paper method is a kind of common method measuring unsaturated soil soil-water characteristic curve, has use cost low, the advantages such as suction measurement scope is big.Its action principle is: sets up and can be migrated in the theoretical basis reaching balance by steam with the soil with certain suction at filter paper.The soil suction generally measured in practical study has two kinds, and one is total suction, and it is made up of matric suction and osmotic suction two parts；Another kind is matric suction, and its size depends on the factors such as the capillarity of the soil body, soil structures and surface tension.Utilize filter paper method both suction can tested out, the general process using filter paper method is first will to obtain reflecting the rating curve of relation between filter paper moisture content and soil suction by test, then filter paper is put together with soil sample to be measured and be placed in closed environment that (record when filter paper contacts with soil sample is soil body matric suction value, record when filter paper does not contacts with soil sample is the total suction value of the soil body), paper quality to be filtered measures filter paper moisture content after no longer changing, and is gone out the suction value of soil sample to be measured by the final inverse of rating curve.
At present, relevant filter paper method is surveyed the test of soil body suction and is mostly all carried out at laboratory, the soil sample will fetched from field is after disturbance sample preparation, soil sample to be measured is put into together with filter paper in the middle of a jar sealed through measuring the moisture content of filter paper and the soil body after a period of time, obtained the soil-water characteristic curve of soil sample by the moisture content and suction value measuring multiple soil sample simultaneously.This method operates fairly simple convenience, but unfortunately can not measure the migration of moisture in total suction of soil at earth pillar different depth and earth pillar.
Utility model content
During measuring the total suction of soil, in order to probe in earth pillar total suction value of soil at Water Transport process and earth pillar different depth, this utility model provides a kind of total suction measurement device of soil based on filter paper method, this device arranges the module placing filter paper at pipe shaft differing heights, can measure the Water Transport process in the total suction of soil of different depth and earth pillar simultaneously.
In order to realize above-mentioned technical characteristic, the purpose of this utility model is achieved in that a kind of indoor filter paper method surveys the total suction of soil and the device of Water Transport, it includes earth pillar cylinder, described earth pillar cylinder is hollow cylinder, earth pillar cylinder is arranged in square base, the left surface of earth pillar cylinder is fixedly installed multiple equally spaced left hand sleeves, and the right flank of earth pillar cylinder is fixedly installed multiple equally spaced right hand sleeves；Left side circular hole and right side circular hole it is machined with respectively on the earth pillar cylinder sidewall at described left hand sleeves and right hand sleeves place；Described left hand sleeves and right hand sleeves are respectively installed with left pipe of measuring and measure pipe with right.
The axial line of described left hand sleeves and right hand sleeves has difference in height.
Described left pipe of measuring is arranged on inside left hand sleeves and right hand sleeves by the dismountable mode of plug-in mounting respectively with right measurement pipe.
Described left measurement is both provided with annulus inside pipe and right measurement pipe.
Described left pipe of measuring carries out water-vapor exchange by left side circular hole and right side circular hole with earth pillar cylinder respectively with right measurement pipe.
Described earth pillar cylinder, left measurement pipe and right measurement pipe all use organic transparent glass material to make.
Described left pipe of measuring is internally provided with filter paper with right measurement pipe, and described filter paper is fixed by annulus.
This utility model has the advantages that:
1, left pipe and the carrier functioning as filter paper of right measurement pipe measured, measurement pipe one end open, it is ensured that can carry out Water Transport between soil and filter paper, one end seals, it is ensured that closed environment.
2, left measurement pipe and right measurement pipe have protruding circular ring, it is to avoid filter paper contacts with the barrel measuring pipe.
3, below earth pillar cylinder it is square base, it is ensured that earth pillar cylinder can steadily be erect, and top is open, earth pillar body and atmosphere.Earth pillar cylinder both sides have two row's circular holes respectively, and 9,10 are staggered on one side.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the front view of this utility model device.
Fig. 2 is the main sectional view of this utility model device.
Fig. 3 is the top view of this utility model device.
Fig. 4 is the side view of this utility model device.
In figure: earth pillar cylinder 1, left measurement pipe 2, left side circular hole 3, left hand sleeves 4, square base 5, right hand sleeves 6, right side circular hole 7, right measurement pipe 8, annulus 9.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further.
As Figure 1-4, a kind of indoor filter paper method surveys the total suction of soil and the device of Water Transport, it includes earth pillar cylinder 1, described earth pillar cylinder 1 is hollow cylinder, earth pillar cylinder 1 is arranged in square base 5, the left surface of earth pillar cylinder 1 is fixedly installed multiple equally spaced left hand sleeves 4, and the right flank of earth pillar cylinder 1 is fixedly installed multiple equally spaced right hand sleeves 6；Left side circular hole 3 and right side circular hole 7 it is machined with respectively on earth pillar cylinder 1 sidewall at described left hand sleeves 4 and right hand sleeves 6 place；Described left hand sleeves 4 and right hand sleeves 6 are respectively installed with left measurement pipe 2 and right measurement pipe 8.
Further, the axial line of described left hand sleeves 4 and right hand sleeves 6 has difference in height.
Further, described left measurement pipe 2 and right measurement pipe 8 are arranged on left hand sleeves 4 by the dismountable mode of plug-in mounting respectively and right hand sleeves 6 is internal.
Further, described left measurement pipe 2 and right measurement pipe 8 inside are both provided with annulus 9.
Further, described left measurement pipe 2 and right measurement pipe 8 carry out water-vapor exchange by left side circular hole 3 and right side circular hole 7 with earth pillar cylinder 1 respectively.
Further, described earth pillar cylinder 1, left measurement pipe 2 and right measurement pipe 8 all use organic transparent glass material to make.
Further, described left measurement pipe 2 and right measurement pipe 8 are internally provided with filter paper, and described filter paper is fixed by annulus 9.
The most in an embodiment:
The external diameter of described earth pillar cylinder 1 is 100mm, and internal diameter is 94mm, and height is 550mm.
The size of described square base 5 is 150mm × 150mm, and thickness is 5mm.
The internal-and external diameter of described left hand sleeves 4 and right hand sleeves 6 is respectively 20mm and 24mm, a length of 15mm.
Spacing between described adjacent left-hand circular hole 3 and right side circular hole 7 centrage is 50mm.
The overall dimensions of described left measurement pipe 2 and right measurement pipe 8 is: height × external diameter × thickness=65mm × 20mm × 2mm.
Described annulus 9 internal-and external diameter is respectively 6mm and 8mm.
The quantity of described left hand sleeves 4 is 9, and the quantity of described right hand sleeves 6 is 10.
Specific works process of the present utility model and operation principle be:
First, prepare the soil sample of certain water content, it is filled in earth pillar cylinder, when filling soil sample, the closed end closure circular hole of pipe is measured in application, it is to avoid when filling soil sample, soil is extruded from circular hole, after filling soil sample, the filter paper of a diameter of 5cm is rolled into tubular, puts in measurement pipe with tweezers, then measuring in the trepanning that pipe inserts on earth pillar cylinder.Every at regular intervals with taking off measurement pipe, take out filter paper with tweezers, measure with electronic balance.Should be reduced it when taking out filter paper as far as possible and expose the aerial time.Extract measurement pipe simultaneously, with little spoon circular hole at this is drawn out soil sample in a small amount, and measure its water content.After having measured data, as early as possible filter paper is put in measurement pipe, and inserts in the trepanning on earth pillar cylinder.After the quality of filter paper no longer changes, illustrate that filter paper has reached balance with the water-vapor exchange of surrounding soil.Get out the hole of certain depth with the borer supporting with measurement apparatus at pilot region, then the filter paper 5 of two a diameter of 5cm is rolled into tubular, be respectively put into inside two measuring cylinders with tweezers.
Follow-up as follows:
Weigh after filter paper water-vapor exchange balance and put into drying in oven, after weighing up filter paper dry weight, calculate moisture content θ, according in advance at the filter paper rating curve formula of experiment indoor measurement:
Lnψ=12.487-22.31θ
(1)
In formula: ψ is total suction value, unit is kPa；θ is filter paper moisture content, unit dimensionless 1.
Assume that filter paper moisture content is 0.25, then calculating total suction of the soil body according to formula (1) is 1001.75kPa.
Above-described embodiment is used for illustrating this utility model; rather than this utility model is limited; in spirit of the present utility model and scope of the claims, any modifications and changes that this utility model is made, both fall within protection domain of the present utility model.
Claims (7)
1. an indoor filter paper method surveys the total suction of soil and the device of Water Transport, it is characterized in that: it includes earth pillar cylinder (1), described earth pillar cylinder (1) is hollow cylinder, earth pillar cylinder (1) is arranged in square base (5), the left surface of earth pillar cylinder (1) is fixedly installed multiple equally spaced left hand sleeves (4), and the right flank of earth pillar cylinder (1) is fixedly installed multiple equally spaced right hand sleeves (6)；Left side circular hole (3) and right side circular hole (7) it is machined with respectively on earth pillar cylinder (1) sidewall at described left hand sleeves (4) and right hand sleeves (6) place；Described left hand sleeves (4) and right hand sleeves (6) are respectively installed with left measurement and manage (2) and right measurement pipe (8).
A kind of indoor filter paper method the most according to claim 1 surveys the total suction of soil and the device of Water Transport, it is characterised in that: the axial line of described left hand sleeves (4) and right hand sleeves (6) has difference in height.
A kind of indoor filter paper method the most according to claim 1 surveys the total suction of soil and the device of Water Transport, it is characterised in that: described left measurement pipe (2) and right measurement pipe (8) are arranged on left hand sleeves (4) by the dismountable mode of plug-in mounting respectively and right hand sleeves (6) is internal.
A kind of indoor filter paper method survey total suction of soil the most according to claim 1 and the device of Water Transport, it is characterised in that: described left measurement pipe (2) and right pipe (8) inside of measuring are both provided with annulus (9).
A kind of indoor filter paper method the most according to claim 1 surveys the total suction of soil and the device of Water Transport, it is characterised in that: described left measurement pipe (2) and right pipe (8) of measuring carry out water-vapor exchange by left side circular hole (3) and right side circular hole (7) and earth pillar cylinder (1) respectively.
A kind of indoor filter paper method the most according to claim 1 surveys the total suction of soil and the device of Water Transport, it is characterised in that: described earth pillar cylinder (1), left measurement pipe (2) and right pipe (8) of measuring all use organic transparent glass material to make.
A kind of indoor filter paper method the most according to claim 4 surveys the total suction of soil and the device of Water Transport, it is characterised in that: described left measurement pipe (2) and right pipe (8) of measuring are internally provided with filter paper, and described filter paper is fixing by annulus (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256864.4U CN205538958U (en) | 2016-03-30 | 2016-03-30 | Device of total suction of soil and moisture migration is surveyed to indoor filter paper method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256864.4U CN205538958U (en) | 2016-03-30 | 2016-03-30 | Device of total suction of soil and moisture migration is surveyed to indoor filter paper method |
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| Publication Number | Publication Date |
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| CN205538958U true CN205538958U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256864.4U Expired - Fee Related CN205538958U (en) | 2016-03-30 | 2016-03-30 | Device of total suction of soil and moisture migration is surveyed to indoor filter paper method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896047A (en) * | 2017-03-14 | 2017-06-27 | 长安大学 | A kind of simultaneous determination soil water feature and the experimental rig and method for permeating linearity curve |
| CN111521512A (en) * | 2020-05-20 | 2020-08-11 | 吉林大学 | Device for measuring migration quality of gaseous water in unsaturated soil and using method thereof |
-
2016
- 2016-03-30 CN CN201620256864.4U patent/CN205538958U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896047A (en) * | 2017-03-14 | 2017-06-27 | 长安大学 | A kind of simultaneous determination soil water feature and the experimental rig and method for permeating linearity curve |
| CN106896047B (en) * | 2017-03-14 | 2018-10-26 | 长安大学 | A kind of experimental rig and method of simultaneous determination soil water feature and infiltration linearity curve |
| CN111521512A (en) * | 2020-05-20 | 2020-08-11 | 吉林大学 | Device for measuring migration quality of gaseous water in unsaturated soil and using method thereof |
| CN111521512B (en) * | 2020-05-20 | 2021-07-06 | 吉林大学 | Device for measuring migration quality of gaseous water in unsaturated soil and using method thereof |
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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: 20160831 Termination date: 20170330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |