Research Paper | Engineering | India | Volume 7 Issue 11, November 2018
Shear Strength Behviour of Jointed Mass at 15? Orientation
Dr. Subir Kumar Sharma, Dr. S. S. Gupta
The analysis of engineering behavior of jointed rock is typical and depends upon various properties of jointed rock such as elastic, frictional, surface roughness and adhesion properties. Stability analysis in jointed rock is often governed by the stability of a critical joint. In such cases, it is assumed that no interaction exists between the rock and the joint; the joint can therefore be considered isolated. The engineering characteristics of the joint plane are necessary for assessing instability. The direct shear test is a suitable experiment to determine these parameters. In the present study an attempt has been made to study a jointed mass under direct shear test. The specimen has been made large enough so they have negligible scale effect. Due to ease in working and reproducibility of results a model material has been used. The jointed mass is prepared with the help of cement sand mortar having ratio 1: 3 and water cement ratio 0.5. The orientation of the joint was kept as 15. During the direct shear tests normal stress was kept constant. The shearing displacement and the normal displacements were recorded with respect to shearing stress for orientation of 15 joint. The shear behaviour of jointed mass under low normal stress condition was analyzed for the present study and found that instantaneous cohesion increases as increase in normal stress and instantaneous friction angle decreases as increase in normal stress.
Keywords: jointed rock mass strength behaviour
Edition: Volume 7 Issue 11, November 2018
Pages: 1646 - 1649
How to Cite this Article?
Dr. Subir Kumar Sharma, Dr. S. S. Gupta, "Shear Strength Behviour of Jointed Mass at 15? Orientation", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=ART20193128, Volume 7 Issue 11, November 2018, 1646 - 1649
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