CN108896366A - The loess sample preparation device and method for making sample of pore water chemical concentrations are determined in preparation - Google Patents
The loess sample preparation device and method for making sample of pore water chemical concentrations are determined in preparation Download PDFInfo
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- CN108896366A CN108896366A CN201810745325.0A CN201810745325A CN108896366A CN 108896366 A CN108896366 A CN 108896366A CN 201810745325 A CN201810745325 A CN 201810745325A CN 108896366 A CN108896366 A CN 108896366A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention discloses a kind of prepare to determine the loess sample preparation device and method for making sample of pore water chemical concentrations, including a device noumenon, a communication apparatus ontology and the hydraulic device for supplying liquid；The pedestal to connect, lower permeable stone, soil sample, upper dankness stone and soil sample cap are set gradually in device noumenon from bottom to top, is connected to hydraulic device at the top of soil sample cap, the strain transducer that is connected to computer and can be freely lifted is equipped on hydraulic device；By injecting water chemistry solution into device noumenon, and start pulsometer and air pressure is adjusted by automatic air pressure controller, realizes the preparation to soil sample contaminated in device noumenon.This method simulates the pollution of the water chemistry in Practical Project as far as possible, and accelerates the soil body by axial hydraulic while not disturbed soil initial configuration as far as possible and prepare speed, can effectively improve preparation effect and preparation rate.
Description
Technical field
The invention belongs to geotechnological laboratory test technical fields, disclose a kind of Huang for preparing and determining pore water chemical concentrations
Native sample preparation device and method for making sample.
Background technique
Water chemistry Polluted Soil is a new hot spot in environmental geotechnical field.Wherein major embodiment in practical projects
?：The corrosive wastewater of urban industry plant area enters ground through a variety of ways and causes soil body ingredient, structure, change of properties.Phase
It closes scholar and has carried out a large amount of laboratory tests for this problem.However leaching is mostly used greatly for intact loess water chemistry pollution method
Bubble method, osmosis spread method, and existing satisfied not to the utmost to the loess method for making sample for determining pore water chemical concentrations.
Summary of the invention
To solve drawbacks described above existing in the prior art, the purpose of the present invention is to provide a kind of prepare to determine hole aquation
The loess method for making sample of solution concentration is learned, this method simulates the pollution of the water chemistry in Practical Project as far as possible, and as far as possible
The soil body is not accelerated by axial hydraulic while disturbed soil initial configuration and prepare speed, preparation effect and preparation can be effectively improved
Rate.
The present invention is realized by following technical proposals.
It is a kind of to prepare the loess sample preparation device for determining pore water chemical concentrations, including a device noumenon, a connection
Device noumenon and the hydraulic device for supplying liquid；The pedestal to connect, lower is set gradually in described device ontology from bottom to top
Water stone, soil sample, upper dankness stone and soil sample cap are connected to hydraulic device at the top of soil sample cap, are equipped with and are connected on hydraulic device
Computer and the strain transducer that can be freely lifted；By injecting chemical solution into device noumenon, and it is logical to start pulsometer
It crosses automatic air pressure controller and adjusts air pressure, realize the preparation to soil sample contaminated in device noumenon.
For above-mentioned technical proposal, there are also further preferred schemes by the present invention：
Preferably, the outer diameter of the upper dankness stone, lower permeable stone is identical as the internal diameter of soil sample；Device noumenon wraps up soil sample
It is rubber membrane.
Preferably, be inside the soil sample cap it is hollow, soil sample cap is connected to by nylon tube with hydraulic device air pump, chemical
Solution passes sequentially through nylon tube, the through-hole on soil sample cap and upper dankness stone and soil sample connects.
Preferably, the nylon tube that is connected to the pulsometer of hydraulic device and automatic air pressure controller and being connected to soil sample cap
Nylon pipe joint at be equipped with reversed locking device.
Preferably, the pedestal is made of aluminum alloy materials.
Preferably, the base bilateral wall is equipped with groove.
The present invention correspondingly gives a kind of loess method for making sample for determining pore water chemical concentrations of above-mentioned apparatus, packet
Include following step：
1) lower permeable stone, soil sample, upper dankness stone, soil sample cap are sequentially placed from bottom to top on pedestal, above and below rubber membrane
Both ends are tightened with soil sample cap and pedestal respectively, and water chemistry solution is injected in hydraulic device, are started pulsometer, are passed through automatic air pressure
Controller adjusts air pressure；
2) after on-test, according to test requirements document scheme, different location valve is opened, Computer display reading data is passed through
Air pressure and reading strain are converted into water chemistry solution content used, complete the preparation for treating pollution cylinder soil sample (7)；
3) after the completion of testing, air pump is first closed, rotary closing valve successively takes out soil sample cap, upper dankness stone, lower permeable stone
And the soil sample after pollution, it is spare after cleaning.
Preferably, the automatic air pressure controller adjusts air pressure in 1.8 atmospheric pressure.
Preferably, being converted into institute according to the adjusting air pressure of automatic air pressure controller and strain transducer (3) reading strain
It is calculated with water chemistry solution content, such as following formula：
V=s × h
In formula, water chemistry liquor capacity used in V-；S- hydraulic device floor space；H- is obtained under liquid by strain transducer
Drop height.
It is an advantage of the invention that：Infusion method, osmosis are mostly used greatly for intact loess water chemistry pollution method or are spread
Loess sample preparation of the method to pore water chemical concentrations are determined, the method for the present invention simulate the dirt of the water chemistry in Practical Project as far as possible
Dye, and the soil body is accelerated by axial hydraulic while not disturbed soil initial configuration as far as possible and prepares speed, it can effectively improve
Prepare effect and preparation rate.It is designed by the preparation facilities and preparation method can realize that pore water chemical concentrations are determined in preparation
Loess sample preparation purpose, for Study on engineering properties have certain meaning.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Inappropriate limitation of the present invention is constituted, in the accompanying drawings：
Fig. 1 is the structural schematic diagram of the loess sample preparation device provided by the present invention for determining pore water chemical concentrations；
In figure：1- bracket；2- hydraulic device；3- strain transducer；4- upper dankness stone；5- groove；Permeable stone under 6-；7- soil
Sample；8- rubber membrane；9- soil sample cap；10- nylon tube；11- pedestal.
Specific embodiment
Come that the present invention will be described in detail below in conjunction with attached drawing and specific embodiment, herein illustrative example of the invention with
And explanation is used to explain the present invention, but not as a limitation of the invention.
Referring to Fig. 1, the present invention provides a kind of prepare to determine the loess sample preparation devices of pore water chemical concentrations, including one
A device noumenon, a communication apparatus ontology and the hydraulic device 2 for supplying liquid；Phase is set gradually in device noumenon from bottom to top
Pedestal 11, lower permeable stone 6, soil sample 7, upper dankness stone 4 and the soil sample cap 9 of perforation, the top of soil sample cap 9 are connected to hydraulic device 2,
The strain transducer 3 that is connected to computer and can be freely lifted is equipped on hydraulic device 2, hydraulic device 2 is erected at bracket
On 1；By injecting chemical solution into device noumenon, and start pulsometer and air pressure is adjusted by automatic air pressure controller, realizes
Preparation to soil sample 7 contaminated in device noumenon.
Wherein, upper dankness stone 4, the outer diameter of lower permeable stone 6 are identical as the internal diameter of soil sample 7；Device noumenon wraps up soil sample 7
Rubber membrane 8.Be inside soil sample cap 9 it is hollow, soil sample cap 9 is connected to by nylon tube 10 with 2 air pump of hydraulic device, water chemistry solution according to
Secondary through-hole and upper dankness stone 4 by nylon tube 10, soil sample cap 9 connects with soil sample 7.And the gas with hydraulic device 2
Press pump and the automatic air pressure controller nylon tube 10 being connected to and 10 joint of nylon tube being connected to soil sample cap 9 are equipped with locking dress
It sets.11 two sidewalls of pedestal are equipped with groove 5.
The present invention carries out preparing the loess method for making sample for determining pore water chemical concentrations, includes the following steps：
1) lower permeable stone 6, cylindrical soil sample 7, upper dankness stone 4, soil sample to be prepared are sequentially placed from bottom to top on pedestal
Cap 9 tightens at 8 both ends of rubber membrane and 11 groove 5 of pedestal and soil sample cap 9 respectively, and water chemistry solution mould is injected in hydraulic device 2
Quasi- contaminated liquid, starts pulsometer, adjusts air pressure in 1.8 atmospheric pressure by automatic air pressure controller；
2) after on-test, according to test requirements document scheme, different location valve is opened, Computer display reading data is passed through
The reading strain of air pressure and strain transducer 3 is converted into water chemistry solution content used, completes to cylinder soil sample 7 to be prepared
Preparation；
As following formula calculates water chemistry solution content：
V=s × h
In formula, water chemistry liquor capacity used in V-；S- hydraulic device floor space；H- is obtained under liquid by strain transducer
Drop height；
3) after the completion of testing, first close air pump, rotary closing valve, successively take out soil sample cap 9, upper dankness stone 4, under it is permeable
Stone 6 and pollution soil sample 7, it is spare after cleaning.
The method of the present invention simulates the pollution of the water chemistry in Practical Project as far as possible, and disturbed soil is not initial as far as possible
The soil body is accelerated by axial hydraulic while structure and prepares speed, and passes through axial hydraulic while not destroying soil structures
Accelerate the soil body and prepares speed.
The invention is not limited to examples detailed above, on the basis of technical solution disclosed by the invention, the technology of this field
According to disclosed technology contents, some of which technical characteristic can be made personnel by not needing creative labor
Replacement and deformation, these replacements and deformation are within the scope of the invention.
Claims (8)
1. a kind of prepare the loess sample preparation device for determining pore water chemical concentrations, it is characterised in that：Including a device noumenon,
One communication apparatus ontology and the hydraulic device (2) for supplying liquid；It sets gradually and connects from bottom to top in described device ontology
Pedestal (11), lower permeable stone (6), soil sample (7), upper dankness stone (4) and soil sample cap (9), soil sample cap is connected to liquid at the top of (9)
Pressure device (2) is equipped with the strain transducer (3) that is connected to computer and can be freely lifted on hydraulic device (2)；Pass through
Water chemistry solution is injected into device noumenon, and starts pulsometer and air pressure is adjusted by automatic air pressure controller, is realized to device
The preparation of contaminated soil sample (7) in ontology.
2. according to claim 1 prepare the loess sample preparation device for determining pore water chemical concentrations, it is characterised in that：Institute
It is identical as the internal diameter of soil sample (7) to state upper dankness stone (4), the outer diameter of lower permeable stone (6)；It is rubber that device noumenon, which wraps up soil sample (7),
Epithelium (8).
3. according to claim 1 prepare the loess sample preparation device for determining pore water chemical concentrations, feature exists：It is described
Be inside soil sample cap (9) it is hollow, soil sample cap (9) is connected to by nylon tube (10) with hydraulic device (2) air pump, water chemistry solution according to
Secondary through-hole and upper dankness stone (4) by nylon tube (10), soil sample cap (9) connects with soil sample (7).
4. according to claim 1 prepare the loess sample preparation device for determining pore water chemical concentrations, it is characterised in that：Institute
Pedestal (11) is stated to be made of aluminum alloy materials.
5. according to claim 1 prepare the loess sample preparation device for determining pore water chemical concentrations, it is characterised in that：Institute
Pedestal (11) two sidewalls are stated equipped with groove (5).
6. the loess sample preparation side that pore water chemical concentrations are determined in a kind of preparation of any one of claim 1-5 described device
Method, which is characterized in that include the following steps：
1) lower permeable stone (6), soil sample (7), upper dankness stone (4), soil sample cap (9) are sequentially placed from bottom to top on pedestal (11),
Rubber membrane (8) upper and lower ends are tightened with soil sample cap (9) and pedestal (11) respectively, injection water chemistry is molten in hydraulic device (2)
Liquid starts pulsometer, adjusts air pressure by automatic air pressure controller；
2) after on-test, according to test requirements document scheme, different location valve is opened, Computer display reading data air pressure is passed through
And the reading strain of strain transducer (3), it is converted into water chemistry solution content used, pollution cylinder soil sample (7) is treated in completion
Preparation；
3) after the completion of testing, first close air pump, rotary closing valve, successively take out soil sample cap (9), upper dankness stone (4), under it is permeable
Soil sample (7) after stone (6) and pollution, it is spare after cleaning.
7. according to claim 6 prepare the loess method for making sample for determining pore water chemical concentrations, which is characterized in that institute
It states automatic air pressure controller and adjusts air pressure in 1.8 atmospheric pressure.
8. according to claim 6 prepare the loess method for making sample for determining pore water chemical concentrations, which is characterized in that root
Air pressure is adjusted according to automatic air pressure controller and strain transducer (3) reading strain is converted into water chemistry solution content used, such as
Following formula calculates：
V=s × h
In formula, water chemistry liquor capacity used in V-；S- hydraulic device floor space；H- obtains liquid decline height by strain transducer
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810745325.0A CN108896366A (en) | 2018-07-09 | 2018-07-09 | The loess sample preparation device and method for making sample of pore water chemical concentrations are determined in preparation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810745325.0A CN108896366A (en) | 2018-07-09 | 2018-07-09 | The loess sample preparation device and method for making sample of pore water chemical concentrations are determined in preparation |
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| CN108896366A true CN108896366A (en) | 2018-11-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459460A (en) * | 2018-12-25 | 2019-03-12 | 长安大学 | A kind of scanning electron microscope observation device and method of intact loess humidification sample |
| CN113092718A (en) * | 2021-03-29 | 2021-07-09 | 湖北工业大学 | Indoor geotechnical saturation device for preventing chemical leaching and test method |
| WO2022135222A1 (en) * | 2020-12-25 | 2022-06-30 | 长安大学 | Device and method for preparing sandy soil sample using water method |
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| CN109459460A (en) * | 2018-12-25 | 2019-03-12 | 长安大学 | A kind of scanning electron microscope observation device and method of intact loess humidification sample |
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| CN113092718A (en) * | 2021-03-29 | 2021-07-09 | 湖北工业大学 | Indoor geotechnical saturation device for preventing chemical leaching and test method |
| CN113092718B (en) * | 2021-03-29 | 2023-05-05 | 湖北工业大学 | Indoor geotechnical saturation device for preventing chemical leaching and test method |
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