Optimal Support Design for Galleries Located in Poor Quality Rock Mass and Under the Influence of Mining Works
Journal: Archives of Mining Sciences
Year: 2023

In this work, the sup port of two general galleries located in poor quality rock mass and subjected to the influence of high thickness coal layer exploitations is designed and optimized.The process is carried out in four phases:A first preliminary support is defined employing different geomechanical classifications and applying the New Austrian Tunnelling Method (NATM) using bolts and shotcrete.An instrumentation campaign is carried out with the goal of analysing the behaviour of the support.The