Materiały konferencyjne SEP 2018

XXVII SCHOOL OF UNDERGROUNDMINING 2018 , Cracow, Poland PRINCIPLES FOR TESTING OF APPLIED BOLTS Convergence measurement:  If any critical value is exceed the adequate measures have to be carry out. The project have to include these measures.  Every results of tests and measurement have to be recorded to the „Checking book of bolting support“  „Checking book of bolting support“ have to keep during life span of mine working