Planning Tunnel Construction Using Markov Chain Monte Carlo (MCMC)

Algorithm 1

Algorithm to simulate tunnel excavation time.

BEGIN

WHILE ()

           WHILE ()

                WHILE ()

                      CASE operation

                          op.1

                          op.2

                      END CASE

                END WHILE

                IF ()

                       + beg

                  ELSE

                END IF

           END WHILE

END WHILE

END

Variables:

nsim: number of simulation

ltunnel: lenght of tunnel (meters)

DI.op.m: inverse distribution of operation unit “m”

DI.rec: inverse distribution of efficiency of the blast

Le: lenght of the drilling

dt: during of the work shift (minutes)

rand#: random number.