During Downstream or Centreline Cyclone DepositionTailings:
•Underflow is used to construct a Deposition Embankment.
•Overflow is deposited upstream of the embankment, in the tailings storage facility basin.
Deposition vectors either:
•Move up the embankment upstream face (downstream); or are
•Raised vertically (centreline).
During a deposition model run Rift TD:
•Generates the Deposition Embankments prior to tailings deposition commencing.
•Calculates the underflow volume:
oUnderflow is directed to the deposition embankment while it has capacity; overflow is directed to the tailings storage facility basin.
oOnce the embankment is full all tailings is directed to the tailings storage facility basin.
To specify Downstream Cyclone Deposition:
•Activate the Material Beach Definition Tab:
▪Click Edit > Materials; or
▪Click the Materials Tool-button.
oClick on the Material Beach Definition Tab.
•Set the Cyclone Deposition Parameters:
oCheck the Cyclone Deposition Check-box.
oCheck the Cyclone Material to Embankment Check Box.
oEnter the Cyclone Underflow Material Dry Density.
oEnter the Underflow Percentage (percent tonnage).
•Activate Deposition Lines:
oClick Edit > Deposition Line/Boundaries; or
oClick the Deposition Line Tool-button.
•Set Downstream or Centreline Deposition:
oFor Downstream Cyclone Deposition ensure that the Deposition Direction is the opposite as the Vector Direction:
▪Deposition Direction Left of Line and Vector Direction Right of Line; or
▪Deposition Direction Right of Line and Vector Direction Left of Line.
oFor Centreline Deposition ensure that the Vector Direction is On the Boundary (Vertical).
•Define the Deposition Line Embankment.