The equation of the effective stress failure envelope for normally consolidated clay soil is τ=σ tan⁡30 . A drained tri-axial test was conducted with the same soil at a chamber confining pressure of 300 kPa. Calculate the deviator stress at failurebr -br paki pindot po sa "LIKE" button mga Engr.br and click SUBSCRIBE na rin po if hindi pa po kayo naka "SUBSCRIBE"br br Maraming salamat po sa inyo mga Engineers and Future Engineers.br mabuhay po kayong lahat.