Human creativity springs from the natural desire of mankind to
know and its capability to learn. Explorers and discoverers
possess these features in a high degree. They are driven by an
unrelenting curiosity to go beyond the boundaries of the known,
to explore into the nature of things, to reveal connections between
ideas, facts, conceptions, to view things from new angles, to
change perceptions. A well-known fact about the construction industry - and
underground construction in particular - is that all projects are
unique. The degree of complexity due to the intertwining of the
variety of project-related parameters is higher than in many other
industries, thus forcing contractors as well as suppliers to be truly
adaptable and flexible. The enormous advantages of shotcrete as a construction and
rock support process and the improvement of materials,
equipment and application know-how have made it a very
important and necessary tool for modern underground
construction works. The development of modem wet shotcreting
in particular has enlarged the field of underground construction
work. Projects that were impossible to be realised, have now
become practicable. Subsurface structures can be placed where
they are needed, without regards as to rock and soil conditions.