| 摘要 |
PURPOSE: A timbering member for a tunnel is provided to improve timbering effect using H shaped steel and prevent cavity. CONSTITUTION: A timbering member(10) for a tunnel(1) comprises a H-shaped main body part(122) and a forming space part(124). In order to make a space for forming a second shotcrete between the H shaped main body part and a first shotcrete layer, the forming space part is projected from the H shaped main body part toward the first shotcrete layer. |
