Page 12 - DETERMINATION OF HARD MASSS AND ROCK MASS

CLASSIFICATION OF HARD MASS & ROCK

MASS

02 The determining whether an earthmoving procedure

was a common excavation of hard mass or rock mass

CONFIRMATION OF excavation, it was stipulated previously that the

HARD MASS AND excavator used for trial excavation and subsequent

ROCK MASS BY

MACHINERY (DIRECT works should be in “good running condition.”

METHOD) The trial excavation shall be carried out on a flat

&

(INDIRECT METHOD : platform (as much as possible) in order to develop the

POINT LOAD TEST). rated horsepower at maximum efficiency. All

machineries shall be run in good condition and

operated by skilled personnel approved by the S.O