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Volume 38 Issue z2
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ZHU Qing-qing, MIAO Qiang-qiang, CHEN Zheng-han, YAO Zhi-hua, ZHANG Jun-hao. Development of test system for unsaturated soil water movement law considering influence of matrix potential[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 240-244. DOI: 10.11779/CJGE2016S2039
Citation: ZHU Qing-qing, MIAO Qiang-qiang, CHEN Zheng-han, YAO Zhi-hua, ZHANG Jun-hao. Development of test system for unsaturated soil water movement law considering influence of matrix potential[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(z2): 240-244. DOI: 10.11779/CJGE2016S2039
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Development of test system for unsaturated soil water movement law considering influence of matrix potential

  • 1. College of Chemical Engineering, Northwest University for Nationalities, Lanzhou 730000, China. 2.Institute of Engineering Research & Design of PLA Xinjiang;
    3. Xinjiang People's Armed Forces School, Wulumuqi 830063, China;
    4. Department of Architectural Engineering, Logistical Engineering University of PLA, Chongqing 401331, China;
    5. Department of Airdrome Construction Engineering University, Xi'an 710038, China

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  • Received Date: May 18, 2016
  • Published Date: October 19, 2016
    Graphical Abstract
    • Abstract
  • Based on the worldwide advanced suction probe sensor, moisture sensor, corresponding collection system, computer system and self processing organic glass soil barrels, the first test device for moisture migration of unsaturated soil. It is developed considers the effects of matric potential. The system has the advantages of simple structure, novel design, practical and reliable property, simple and convenient operation. It can collect and compare change of water transport of soil samples with different initial volumetric water contents. Reliable experimental data can be obtained. For contact (water and gas mixture) or no contact (water vapor) of soil samples with the influences of different on the matrix potentials matric potentials to moisture migration in unsaturated soils are quantitatively analyzed. Moisture change and migration of different matrix potentials, sections and periods are also quantitatively analyzed. Direct and real-time measurement of unsaturated soil water characteristic curves of the section under different matric potentials solve direct measurement or in accurate problems. Its measuring range is large and suitable for a variety of unsaturated soil matric potential combinations. Under the influence of the matric potential, the data of moisture migration of unsaturated soils is numerically shown. It can be a reliable tool for investigation and detection of geotechnical engineering, traffic engineering, hydraulic engineering and agricultural engineering.
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    • References (6)
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