压实膨胀黏土水渗透系数受吸力、围压、干密度、饱和度等因素控制。
The pore water permeability coefficient of unsaturated expansive soil is controlled by suction, cell pressure, dry density and degree of saturation of soil samples.
介绍了唐口副井井筒冻结段深厚膨胀黏土层施工、外层井壁变形破坏情况及采取的有效措施，取得了一些有用的经验。为类似地层施工提供借鉴。
The original emphasizesd on construction in mine shaft deep thick swelling claypan in Tang-kou, the damage of outward layer a well of wall and some efficient measures.
通过对粒度分布、页岩滚动回收率、线性膨胀和润滑性的测定，研究了石蜡微小乳状液与黏土分散体系的相互作用。
The interaction of paraffin wax emulsions with clay dispersions was investigated with respect to size distribution, shale recovery, line swelling and lubrication properties.
得到了一些十分重要的新认识，为进一步研究黏土矿物膨胀、分散、运移微观动力学机制提供了重要依据。
This study provides an important basis for further research on the micro dynamic mechanism of clay mineral swelling, disgregation and migration.
测试结果表明，一种黏土替代物可以有效地抑制黏土膨胀。
Results from the test indicated a clay substitute was sufficient to control clays welling.
为了提高井下作业的效果，通过测试毛管渗吸时间来确定抑制黏土膨胀所需的盐浓度。
To improve well-operation performance, capillary suction-time testing was performed to determine salt concentration required to prevent clay swelling.
为了提高井下作业的效果，通过测试毛管渗吸时间来确定抑制黏土膨胀所需的盐浓度。
To improve well-operation performance, capillary suction-time testing was performed to determine salt concentration required to prevent clay swelling.
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