Mechanical interaction between swelling compacted clay and fractured rock, and the leaching of clay colloids
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چکیده
منابع مشابه
Mechanical interaction between swelling compacted clay and fractured rock, and the leaching of clay colloids
We consider the interaction between a saturated clay buffer layer and a fractured crystalline rock engineered disturbed zone. Once saturated, the clay extrudes into the available rock fractures, behaving as a compressible nonNewtonian fluid. We discuss the modelling implications of published experiments carried out in Sweden and more recently in Japan. Extrusion is halted either when the advanc...
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The Swelling Behavior of Clay - Sulfate Rocks
Clay-sulfate rocks are often encountered in engineering projects such as underground construction and waste repositories. The unique combination of clay swelling and chemical transformation of anhydrite into gypsum results in a swelling behavior that cannot be explained using conventional rock mechanics. The goals of this study are: 1) to investigate the strength characteristics of reconstitute...
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Nearly all muds, in drilling applications, contain smectite clay minerals, such as montmorillonite or hectorite, which have the remarkable property of swelling in the presence of water. Such systems are known to exhibit long-term gelation and thixotropic behavior, of great importance in applications, depending on clay volume fraction, particle properties (origin of the clay, surface charge, etc...
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ژورنال
عنوان ژورنال: Engineering Geology
سال: 1999
ISSN: 0013-7952
DOI: 10.1016/s0013-7952(99)00071-x