abo-hajjaj documents

Documents Tunnelling Support

Documents The New Austrian Tunnelling Method

Documents Stress and Deformation Fields Around a Deep Circular Tunnel

Documents Stability of the Excavation Face

Documents Some Approximate Solutions for Shallow Tunnels

Documents Settlement of the Surface

Documents Introduction to Tunneling

Documents Installations in Tunnels

Documents Earthquake Effects on Tunnels

Documents Grouting and Freezing

Documents Heading of tunnel

Documents Application of Compressed Air

Documents Micro Tunneling and Horizontal Drilling

Documents Al-Madina Quraan