NEW TECHNOLOGY OF BOLTED SHOTCRETE SUPPORT AND ITS APPLICATION TO TAOYUAN COAL MINE

The reinforced shell structure is a new kind of forms in the supporting engineering for soft rock tunnel. The technique feature,structure characteristic and supporting theory are introduced;and the structure is analyzed theoretically.The calculation model and expressions of inner forces are deduced for this kind of structure.With its application to the Taoyuan Coal Mine,the construction technique requests and crafts are also set forth, Practice shows that the spatial bolted shotcrete supporting structure is of very high value and vast development foreground.