THE STUDY OF TUNNEL YIELD AND SHOTCRETE TECHNOLOGY

The geological condition of -600 horizontla tunnel of Ge-dian mining is bad,it can't guarantee the stability of tunnel when using general support ways,combining in time observing,we use yield and shotcrete technology in support schemes.Which is succeed in resisting runnel deformation and ensure the ability of produce,achieving the goal of control the deformation of tunnel,solving the difficult question of support in the condition of soft rock and high textural stress.