A NEW KIND OF THREE-DIMENSIONAL STEEL BAR SHOTCRETE LININGAND ITS APPLICATION IN SOFT ROCK TUNNELS

摘要

A new kind of tunnel supporting was put forward on the basis of anchor spray support principle. The mechanics of the new three-dimensional steel bar shotcrete lining support was studied and structure's internal forces were analyzed. The model experiment was done relying on the industrial test. The conclusion of numerical calculations proved that ANSYS program was reasonable and creditable. It was compared to other kinds of supporting that used commonly in soft rock tunnels. The technique and economic contrasts of the typical tunnel with support three-dimensional steel bar were completed.