Experiment device and method for detecting relationship between seepage and pressure/temperature
A technology of pressure temperature, experimental device, applied in measurement device, fluid dynamics test, permeability/surface area analysis, etc., can solve problems such as difficulties
Active Publication Date: 2016-08-17
CHINA THREE GORGES UNIV
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Problems solved by technology
There are many factors that affect the permeability coefficient, mainly depending on the shape, size, unevenness coefficient and water viscosity of soil particles, etc. It is difficult to establish an accurate theoretical formula for calculating the permeability coefficient k, which can usually be obtained through experimental methods, including Laboratory measurement method and field measurement method or empirical estimation method are used to determine the k value, but these methods have certain limitations, and there is no special equipment for detection
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Embodiment Construction
[0027] The structure of the present invention is as figure 1 Shown: an experimental device for detecting the relationship between seepage and pressure and temperature, a water storage device, the water storage device is connected with the water heating device 3, a heating pipe 6 is arranged at the lower part of the water heating device 3, and the water heating device 3 and the soil container 4 A first heat-conducting isolation plate 7 with a sealing ring 12 is arranged between them, and the first sealing ring 12 and the first heat-conducting insulating plate 7 are connected by a plurality of screws 14, and a belt with an attached The second heat conduction isolation plate 8 of the barbed wire 13 of the filter geotextile is connected by a plurality of screws 15 between the second heat conduction isolation plate 8 of the barbed wire 13 of the filter geotextile, and a plurality of temperature sensors 11 are distributed in the soil container 4 , in order to ensure that the experim...
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The invention provides an experiment device and method for detecting the relationship between seepage and pressure / temperature. The experiment device comprises a water storage device which is communicated with a water heating device through a water pump. A heating pipe is arranged at the lower portion of the water heating device. A first heat conduction insulation plate with a first seal ring is arranged between the water heating device and a soil container. A second heat conduction insulation plate with an iron wire net where filtering geotechnical cloth is attached is arranged between the soil container and a water discharge tank. A plurality of temperature sensors are distributed in the soil container. By means of the experiment device, the experiment on the relationship between seepage and the changing water pressure / medium temperature can be carried out. The experiment is carried out in three stages, namely, the unsaturated soil heat conduction experiment, the saturated soil seepage experiment and the saturated soil temperature conduction experiment.
Description
technical field [0001] The invention relates to related fields such as fluid mechanics, seepage mechanics in thermodynamics and the relationship between temperature changes, and in particular to an experimental device and method for detecting the relationship between seepage and pressure and temperature. Background technique [0002] The relationship between changes in soil temperature, water pressure and seepage was obtained through a large number of experiments by French hydraulic scientist H.-P.-G. Darcy in 1852-1855. Its expression is: [0003] Q = K F h l [0004] This law only describes the relationship between seepage velocity and hydraulic gradient. The permeability coefficient is an inherent property of soil materials, and its determination is mostly done through experiments. The permeability coefficient K is an index that comprehensively reflects the pe...
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Patent Timeline
Login to View More IPC IPC(8): G01M10/00G01N15/08G09B23/12G09B23/16
CPCG01M10/00G01N15/082G01N2015/0813G09B23/12G09B23/16
Inventor 周宜红余晓云裴光强赵春菊周剑夫
Owner CHINA THREE GORGES UNIV