ABSTRACT
A B S T R A C T : The paper outlines the practice of roof support with the use of long string wire cable-
bolts in Polish coal mines from its beginning t i l l now. Shown are the results o f the observations
conducted to determine the interaction between the cables and the rockmass in various geological
and mining conditions. The documented cases of cablebolt support installation and performance
monitoring have been done on such mines as: "Bogdanka", "Sobieski Jaworzno III", " M u r c k i " ,
"Wieczorek", "Bielszowice", "Piast". The authors also present the results of laboratory research
conducted at a suitably prepared test stand as well as new cable construction designs together with
their technical characteristics. Further on described are the most effective methods to install cable-
bolts in various rocks, characterised by diverse structural and strength properties.
