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首页> 外文会议>International symposium on unsaturated soil mechanics and deep geological nuclear waste disposal >SUCTION VARIATIONS AND SOIL FABRIC OF SWELLING COMPACTED SOILS
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SUCTION VARIATIONS AND SOIL FABRIC OF SWELLING COMPACTED SOILS

机译：膨胀压实土壤的吸力变化和土壤纤维

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摘要

This study addresses firstly, the soil fabric variations of loose and dense compacted samples during a single wetting and drying cycle between 0 and 287.9 MPa using mainly the Mercury Porosimetry Intrusion (MIP) tests. Two suction techniques were employed to apply this wide suction range: the osmotic technique for suctions less than 8.S MPa, and the vapor equilibrium or salt solution technique for suctions higher than 8.S MPa. Secondly, the Soil Water Retention Curves (SWRC) were predicted by the MIP test results for both loose and dense samples. A reasonable correspondence between MIP results and SWRC was found on the wetting path for the low suction close to saturation and on drying path for the higher suction.
机译：这项研究首先解决了主要通过汞孔压法（MIP）测试在0到287.9 MPa之间的单个润湿和干燥循环中的松散和致密压实样品的土壤织物变化。两种抽吸技术可用于这种较宽的抽吸范围：渗透技术用于小于8.S MPa的抽吸，蒸汽平衡或盐溶液技术用于大于8.S MPa的抽吸。其次，通过MIP测试结果预测了松散和稠密样品的土壤水分保持曲线（SWRC）。在接近饱和的低吸力的润湿路径上和在更高吸力的干燥路径上，发现MIP结果与SWRC之间存在合理的对应关系。

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