Undisturbed soil pollutant migration test method under load effect and undisturbed soil sampling apparatus used in test
A test method and sampling device technology, applied in the field of undisturbed soil pollutant migration test, can solve the problems of less consideration of groundwater level, overlying load, lack of undisturbed soil analysis, deviation of pollutant migration law, etc., to achieve less disturbance, complete and The effect of accurate research and accurate test results
Inactive Publication Date: 2016-11-16
WENZHOU UNIVERSITY
View PDF11 Cites 10 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the existing test equipment and test methods have the following problems: 1) The current pollutant migration test lacks the analysis of the undisturbed soil, which leads to deviations between the test results and the migration rules of pollutants in the natural soil layer; 2 ) Pollutant migration tests seldom consider the influence of groundwater level and overlying load; 3) seldom consider the interaction between heavy metals and organic matter
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010] The accompanying drawings show the technical solution of the present invention and its embodiments, and the relevant details and working principles of the embodiments will be further described below in conjunction with the accompanying drawings.
[0011] refer to figure 1 As shown, the undisturbed soil pollutant migration test method under the load provided by the present invention comprises A, adopts undisturbed soil sampling device to take out undisturbed soil 3 from natural soil layer, each intercepts a section of the soil sample of different depth soil layers, puts The intercepted undisturbed soil 3 of different soil layers is placed directly above the bottom permeable stone 6 in the cylinder body 2 on site. Use a rubber film to cover the side, the rubber film can prevent the liquid from flowing away, and cover the top permeable stone 8 on the undisturbed soil 3; B, use the loading device 9 to apply a load to the top permeable stone 8, and record the settlement dist...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an undisturbed soil pollutant migration test method under a load effect. The method comprises the following steps of: A, taking out undisturbed soil from a natural soil layer, and directly placing the intercepted undisturbed soil of different soil layers to be above bottom permeable stone in a barrel; B, applying a load to top permeable stone by adopting a loading apparatus, and conveying a prepared pollutant mixed solution to the top permeable stone; C, opening a sampling opening, carrying out the sampling, and testing types and concentration of pollutants contained in a soil sample; D, storing the soil sample in an original shape after the test into respectively sampling openings; E, repeating the steps C and D according to time lapse; and F, analyzing data obtained in the test at different time periods. The invention also provides an undisturbed soil sampling apparatus used in the test method and an undisturbed soil pollutant migration test system. By adopting the technical scheme, a load state and an underground water pressure state of natural soil can be simulated, the natural undisturbed soil can be directly used for the test, the migration of the pollutants can be more completely and accurately researched, and more accurate data can be obtained.
Description
technical field [0001] The invention relates to a method for testing the migration of pollutants in undisturbed soil under load. The present invention also relates to an undisturbed soil sampling device used in the undisturbed soil pollutant migration test method under the above load. Background technique [0002] In the late 1980s, my country's land pollution area was only a few million hectares, but now it has exceeded 20 million hectares. Land pollution has become a serious livelihood and economic problem in our country. It is urgent to control the problem of land pollution and understand the situation of land pollution. To do a good job of controlling and understanding land pollution, it is necessary to study the migration of land pollution. The current test method mainly uses liquid mixed with pollutants to be sent to the test soil sample, and then samples are taken from different soil layers to detect various pollution in the soil layer. concentration of the substanc...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01N13/00E21B49/02
CPCG01N13/00E21B49/02
Inventor 余闯蔡晓庆王辉
Owner WENZHOU UNIVERSITY