1- In a 1500-mm rock core run, the following rock pieces were recovered from a borehole:
55mm, 108mm, 76mm, 102mm, 132mm, 276mm, 95mm, 168mm, 21mm, 63mm. find the RQD and the core recovery ratio.
2- Point load tests were carried out on two sedimentary rock speci¬mens of 54 mm diameter (NX core), as shown the following figure The loads P1 and PII at failure are 6.28 kN and 4.71 kN, respectively. Find the point load strength index Ism) in the two directions and compute the point load strength anisotropy index 1,(s0)
