Tubing segment next to a transverse gallery designed for non-directional drilling of drilling rods

摘要

the tu00fcbbingelemente (9,16) of steel or gusswerkstoff, the querschlagu00f6ffnung (11) surrounded, cassettes. in the places where the erfindungsgemu00e4u00dfen tu00fcbbing through drilling andlances (10) to the outside shall be led, the cassettes inverse and vorzugswesie larger pointed out, usually on the outside of the tu00fcbbings existing auu00dfenblech (1) lacks these inverse tapes and is, instead, on the inside of the lateral aussteifungsbl eche (3) inside puts in order. this sheet is a e.g.with a deckelblech (4) sealable opening. the inverse cassettes are compared with traditional tapes inside in addition to stiff, so the total stiffness of the tu00fcbbings despite inverse cassettes is maintained. this is done by means of a preferred filling of the cavity open to the outside world the inverse cassettes with concrete.