HW2 - Classification of Rocks The following data have been collected from uni-axial load test for rock specimen with diameter and height of 5 cm and 10 cm, respectively. Load (kg) 1050 1680 3070 5850 3340 2760 2710 2680 Strain 0.03 0.05 0.09 0.14 0.19 0.25 0.29 0.34 1- Calculate out (kg/cm) 2- Find Modulus of initial tangent 3- Classify the rock according to its strength and modulus of elasticity.

Q#4:                                                                                                                                                        Plate load test performed on a uniform deposit of sand and the following observations were recorded. The size of the plate was 45cm x 45cm. Plot the Pressure-Settlement Curve and determine the safe load on a footing 2m x 2m if the settlement is not to exceed 40mm.   Pressure (kPa) 2 4 8 12 16 24 Settlement (mm) 3 6 20 40 60 100   Note: Write the proper answer in word format Subject: Geotechnical Design

For the rock element, shown: Calculate the following stresses of interest Maximum Principal Stress Minimum Principal Stress Maximum Shear Stress Normal Stress at Failure Plane A-B Shear Stress at Failure Plane A-B SHOW COMPLETE SOLUTION

Please explain with a nice hand writing and a good explantion