TY - JOUR AU - Jovičić, Vojkan PY - 2020/06/10 Y2 - 2024/03/29 TI - TUNNEL DESIGN CHALLENGES AT THE EXAMPLE OF DIVAČA KOPER RAILWAY LINE JF - International conference on Contemporary Theory and Practice in Construction / Међународна конференција Савремена теорија и пракса у градитељству JA - STEPGRAD VL - IS - 14 SE - Papers DO - 10.7251/STP2014368J UR - https://doisrpska.nub.rs/index.php/STPG/article/view/6827 SP - AB - <p>New Divača-Koper railway runs through the karst area associated with the major thrust fault, which<br />divides limestone and flysch strata known as the Karst Edge. Due to some 400m high difference in<br />altitude between Divača and Koper most of the railway line runs underground, featuring two six to<br />seven kilometers long tunnels. Two types of tunneling methods were considered: TBM and drill and<br />blast method based on NATM. The advantages and shortcomings of each method are discussed and<br />the set of reasons is given why TBM was not selected as a preferred solution. The main design<br />challenges encompassing the overcoming of the karst phenomena and protection of the water<br />resources are presented in the paper.</p> ER -