Mostafa Alyousif | Middle East Technical University (original) (raw)

Mostafa Alyousif

Address: Melih Gokcek Bulvari, ALFA Plaza No: 113
Ivedik OSB
06105
Ankara
TURKEY

less

Uploads

Papers by Mostafa Alyousif

Canadian Geotechnical Journal, 1978

The shear strength of an unsaturated soil is written in terms of two independent stress state var... more The shear strength of an unsaturated soil is written in terms of two independent stress state variables. One form of the shear strength equation is[Formula: see text]The transition from a saturated soil to an unsaturated soil is readily visible. A second form of the shear strength equation is[Formula: see text]Here the independent roles of changes in total stress σ and changes in pore-water pressure uw are easily visualized.Published research literature provides limited data. However, the data substantiate that the shear strength can be described by a planar surface of the forms proposed. A procedure is also outlined to evaluate the pertinent shear strength parameters from laboratory test results.

Bookmarks Related papers MentionsView impact

Triaxial test is one of the most important tests in geotechnical engineering. Yet, it is not comm... more Triaxial test is one of the most important tests in geotechnical engineering. Yet, it is not commonly conducted due to its complexity and lack of automated devices in the Turkish market and the high price for those manufactured by European and American companies. This study focuses on developing a fully automated computer-controlled triaxial test for the first time in Turkey and the Middle East. The automation of the new setup is not limited to performing the standard tests, but also includes the advanced and custom tests like Ko consolidation and custom stress paths. Reference conventional triaxial tests are conducted on a well-branded automated device and their results are in agreement with the ones obtained using the developed setup. The second purpose of this study is to investigate the applicability of multistage triaxial test on sand. Various methods are tested to determine which one yields more accurate results that are closer to those found using the conventional triaxial te...

Bookmarks Related papers MentionsView impact