Jrc vs Shear Strength of Granite

 Essay on Jrc versus Shear Durability of Granite




Shear power is the serious shear power where a materials can support prior to rapture. Based on Lama and Vutukuri (1978)[1], it really is one of the important aspects employed for designing purpose. There is no doubt that joint is known as a main element that leads to failure in every single rocks type including stone. In granite, shear power is one of the primary characteristic that should be determined in order to classify it is strength and stability The measurement of roughness of joint is recognized as Joint Roughness Coeffiecient (JRC). JRC is usually directly proportional towards the roughness of joint. Higher roughness of joint surface means higher worth of JRC.

Job Objectives

The purpose of this task is as used:

* To determine the roughness of joint that affects it is shear power.

* To undertake shear check on joint of regarded JRC

5. To connect JRC with shear strength of joint


Through this research, the importance of JRC will probably be determined by discussing the surface account of granitic based on a normal diagram presented by Barton and Choubey (1977)[2]. Apart of using the remark method, JRC is also determined empirically. Consequently, the value of JRC obtained will probably be related to the shear power by executing the tilt test and Schmidt Hammer as the determination of shear strength is executing using immediate shear box.

Figure 1: Portable Shear Box Equipment Model

Roctest PHI-10

Result and Achievement

Figure 2 displays the relationship among JRC versus shear durability of stone. Figure two: Graph Shear Strength VS JRC


1 . [1] Lama, S. T. and Vutukuri, R. M. (1978). Guide on Mechanised Properties of Rocks: Assessment Techniques and Results. Amount 4 installment payments on your [2] Barton, N. and Choubey, V. (1977). The Shear Power of Rock and roll Joints in Theory and Practice, Rock Technicians. Vol. 10/1-2. 1-30