Materiały konferencyjne SEP 2018

XXVII SCHOOL OF UNDERGROUNDMINING 2018 , Cracow, Poland ROADWAY SUPPORTING AND RELATION TO THE STRESS STATE CONDITION 6  Rock stress is a measure of forces in the rock  Three components: one vertical, two horizontal  Vertical stress is equal to the weight of rock above  Horizontal stresses come from movement of the earth’s crust S v S H S h