Ground Support
Some means of support is required in order to maintain the stability of the openings that are excavated. This support comes in two forms, local support and area support.
Read more about this topic: Underground Mining (hard Rock)
Famous quotes containing the words ground and/or support:
“Rational free spirits are the light brigade who go on ahead and reconnoitre the ground which the heavy brigade of the orthodox will eventually occupy.”
—G.C. (Georg Christoph)
“The moral qualities are more apt to grow when a human being is useful, and they increase in the woman who helps to support the family rather than in the one who gives herself to idleness and fashionable frivolities.”
—Elizabeth Cady Stanton (1815–1902)