Simulation and real-time control of whole construction progress of long-distance diversion tunnels under unfavorable geological condition s

The long-distance diversion tunnel is often characterized by great embedded depth, large hole diameter, long tunnel line, high ground stress and extremely complicated geologic conditions. Geologic issues like rock burst and high water gushing caused by big embedded depth and high ground stress have great influences on the construction schedule arrangement and control, especially the construction progress control for bad geological section, which is a key to the periodical completion of the whole project. Combined with the circular network system simulation and network project analysis technique, a simulation and real-time control method for the whole construction progress of long distance diversion tunnels under unfavorable geological conditions is presented . This method can provide feasible study and scientific basis for change and selection of real-time progress of construction scheme so as to realize accurate, fast real-time schedule control and to enhance the construction progress of real-time control.