strength has reached the standard is 6% cement = 0.50 MPa , 12% cement = 0.57 MPa and 14% cement = 0.85 MPa.
So is the safety factor value will increase paste fill at the age of 14 days, is expected to reach an average of FS > 3 in
this case, and block paste fill in stable condition with a wide opening in the direction of 16 m and 35 m. Also with
the results of numerical modeling indicate deformation with large displacements between 0.54cm to 21cm at age
paste fill 7 days, and showed unstable. Then open stope mining can proceed following paste fill above the age of 14
days, because this displacement will be smaller and increased mechanical strength make the blocks paste fill as
stope wall capable of holding his own. The design strength (UCS) paste fill adapted to short-term mine plan. If the
cycle of mining with backfilling requires a very fast then the percentage of cement will be increased, and if the
mining cycle takes a long time, the percentage of cement will be reduced by waiting ages paste fill achieve the
required power next to mine, either beside or below it.
strength has reached the standard is 6% cement = 0.50 MPa , 12% cement = 0.57 MPa and 14% cement = 0.85 MPa.
So is the safety factor value will increase paste fill at the age of 14 days, is expected to reach an average of FS > 3 in
this case, and block paste fill in stable condition with a wide opening in the direction of 16 m and 35 m. Also with
the results of numerical modeling indicate deformation with large displacements between 0.54cm to 21cm at age
paste fill 7 days, and showed unstable. Then open stope mining can proceed following paste fill above the age of 14
days, because this displacement will be smaller and increased mechanical strength make the blocks paste fill as
stope wall capable of holding his own. The design strength (UCS) paste fill adapted to short-term mine plan. If the
cycle of mining with backfilling requires a very fast then the percentage of cement will be increased, and if the
mining cycle takes a long time, the percentage of cement will be reduced by waiting ages paste fill achieve the
required power next to mine, either beside or below it.
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