TIEBOLT CONSTRUCTION METHOD BETWEEN TUNNEL SECTION

摘要

PURPOSE: A method for installing a tie rod between tunnels instead of a rock bolt is provided to improve tunnel construction efficiency by using a tie rod instead of a rock bolt. CONSTITUTION: A method for installing a tie rod between tunnels instead of a rock bolt is as follows. A through hole(400) is formed between inner excavation surfaces of tunnels. Tie rods(300,320) are inserted into the through hole, and both ends of the tie rods are protruded from both ends of the through hole. The protruded tie rods are fixed to both excavation surfaces of the tunnels using support members.