Soll Direct Sheer Test: Understanding the process

The Soil Direct Shear Test is used to determine the shear strength parameters of soil, including cohesion and angle of internal friction. In this test, a soil sample is placed in a shear box and subjected to a controlled normal load. Then, a horizontal force is applied until the sample fails along a predetermined plane. The results help engineers understand how soil behaves under shear stress, which is critical for designing foundations, retaining walls, and slopes. This test is simple, widely used, and provides valuable data for geotechnical analysis and safe construction practices.