Study on Strength and Deformation Characteristic of Jointed Rock Mass

Several massive, complicated and difficult to design structure are under construction or planning stages under very complex geological condition in India and around the world. Even small variation in appraisal and design can cost millions. Hence initial development of understanding under control condition is very important and desirable for characteristic and prediction of behavior. It is essential to have a clear understanding of strength and deformation behavior of jointed mass for realistic analysis and rational designing of engineering structure .The most important factors which govern the strength of rock mass type are type of rocks, bedding planes, stress condition, presence of cracks and fissures and nature of joint surfaces, presence of minerals in bedding planes also play an important role in the strength and deformation behavior of jointed rock mass. As the in situ determinations of jointed rock mass is costly and time consuming attempts are being made to predict the strength and deformation of rock mass through model test under controlled laboratory conditions Considering the importance of this study the experimental study has been under taken to determine the strength and deformation behavior of jointed rock mass. Models will be prepared using Plaster of paris, cement mad mica and different degrees of anisotropy have been induced by making joints in them varying from 0 to 90 degree. The specimen will be tested under direct shear, uniaxial compression to determine the various parameters.