考虑基质势影响的非饱和土水分运移规律测试系统研制

朱青青; 苗强强; 陈正汉; 姚志华; 章峻豪

doi:10.11779/CJGE2016S2039

考虑基质势影响的非饱和土水分运移规律测试系统研制 English Version

朱青青¹,
苗强强^{2, 3},
陈正汉⁴,
姚志华⁵,
章峻豪⁴

1. 西北民族大学化工学院,甘肃兰州 730000;
2. 新疆军区司令部工程勘察设计研究院,新疆乌鲁木齐 830000;
3. 新疆人民武装学校,新疆乌鲁木齐 830063;
4. 后勤工程学院土木工程系,重庆 400041;
5. 空军工程大学机场建筑工程系,陕西西安 710038

基金项目: 中央高校基本科研业务费专项资金项目（31920140102）

详细信息

作者简介:
朱青青(1979- ),女,副教授,主要从事环境岩土科研与教学工作。E-mail: 952977585@qq.com。

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出版历程
- 收稿日期: 2016-05-18
- 发布日期: 2016-10-19

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

摘要

摘要: 借助于国内外先进的吸力探头传感器、水分传感器、相应的采集系统、计算机系统和自加工的有机玻璃土样桶等,研制出国内外首台考虑基质势影响的非饱和土水分运移规律测试装置。其结构简单,设计新颖,实用可靠,操作简单方便,能够将不同初始体积含水率的土样的水分运移变化情况,全面的进行数据化的统计、比较,并能够得出可靠的试验数据,能够定量研究不同基质势土样相互接触（水气混合）或不接触（气态水）时非饱和土中不同基质势对水分运移的影响规律;定量研究不同基质势、不同断面和不同时期非饱和土中水分变化和运移情况;直接、实时量测同一断面非饱和土在不同基质势作用下的非饱和土土水特征曲线,解决了非饱和土土水特征曲线无法直接量测或量测不准确的难题;量测范围广,适合多种非饱和土基质势组合时的量测,对基质势影响下的非饱和土水分运移规律做出数据化的展现,能够作为岩土工程、交通工程、水利工程和农业工程相关研究领域的可靠工具。
- 非饱和土 /
- 基质吸力 /
- 含水率 /
- 水分运移
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.
- unsaturated soil /
- matric suction /
- water content /
- moisture migration

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参考文献(6)

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