根据软岩工程特征、变形机理,采用非等强耦合控制技术对不良部位实施二次支护,成功地控制了围岩的变形,保证了隧道工程的稳定.
According to engineering characteristics and deformation mechanism of soft rock, secondary supporting is implemented to bad positions by non-full-strength coupling controlling technology. The deformation of surrounding rock is controlled successfully, and the stability of the tunnel is guaranteed.