| 摘要 |
<p>A roadway support ( 1 ) is introduced in parallel to the face advancement of a gallery( 1 ) by means of a selective cut heading machine ( 2 ) by providing lagging mats ( 18, 19 ) in the form of rolled mats ( 20, 21 ) downstream of the cutting tool ( 3 ) of the selective cut heading machine ( 2 ) in two transverse planes ( 14, 15 ) that are arranged behind one another in the longitudinal heading direction in circumferential offset relationship. The lagging mats ( 18, 19 ) are then unrolled simultaneously to the face advancement in the longitudinal heading direction so as to overlap laterally and are instantly aligned upon the rock. Once the lagging mats ( 18, 19 ) have been entirely unrolled, the working steps are successively repeated in accordance with the length of the face advancement with new lagging mats ( 18, 19 ) that adjoin the lagging mats ( 18, 19 ) previously laid. The roadway support ( 7 ) is introduced at a distance to the cutting tool ( 3 ) while fixing the lagging mats ( 18, 19 ).</p> |
