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Full-Text Articles in Engineering
Multiscale Investigation Of Thixotropy In Soft Clays, Jing Peng
Multiscale Investigation Of Thixotropy In Soft Clays, Jing Peng
Doctoral Dissertations
Fine-grained clay particles of <2 >µm in size are ubiquitous in soils and sedimentary rocks. Due to their platy shape, high aspect ratio, and surface charges, clay particles play a dominant role in controlling the mechanical properties of those fine-grained geomaterials such as soft clays and shales. In physics and engineering, some materials show that the strength and stiffness increases with time even if the boundary conditions remain unchanged (e.g., no change in pressure, temperature, or composition), and such a phenomenon is called thixotropy. It is generally agreed that the principle of thixotropy of wet clays is complex. For a closed, …
Laboratory Investigation Of The Effects Of Temperature And Moisture On Interface Shear Strength Of Textured Geomembrane And Geosynthetic Clay Liner, Taki Stavros Chrysovergis
Laboratory Investigation Of The Effects Of Temperature And Moisture On Interface Shear Strength Of Textured Geomembrane And Geosynthetic Clay Liner, Taki Stavros Chrysovergis
Master's Theses
A laboratory investigation was conducted to determine the effects of temperature and moisture on the shear strength of textured geomembrane (T-GM) and geosynthetic clay liner (GCL) interface. Several landfill slope failures involving geosynthetics have occurred within the past three decades. Interface shear strength of T-GM/GCL is well documented for testing conducted at laboratory temperatures and at moisture contents associated with GCLs in submerged conditions. However, in-service conditions for landfill liner systems include a wide range of temperatures (extending from below 0 °C to above 40 °C) and a wide range of moisture conditions. Large-scale interface direct shear tests were performed …