Abstract:
In order to study multiple problems concerning quickly tunneling in long distance tunnel, we design and develop a shield machine based on drilling, tunneling, protecting and transporting. By study the shield technique method, working sequences, guiding system composition and working principle, direction fixation, forehand detection and new support and protection of coal mining and tunneling in detail, we analyze the difference regarding the usage effectiveness between traditional tunnel tunneling and shield tunneling. Shield tunneling shows the advantage of quickly tunneling, effectiveness and efficiency, safety and cost saving points of view.