LIU Zhao-wei, HE Man-chao, WANG Shu-ren. Study on karst waterburst mechanism and prevention countermeasures in Yuanliangshan tunnel[J]. 2006, 27(2).DOI:
By means of investigation on the engineering geological conditions
numerical modeling
and theoretical analysis
the mechanism of the karst water burst and its prevention countermeasures in Yuanliangshan tunnel are researched systematically. The results show that the karst water burst in tunnels is a gradually developed process
which is influenced by water pressure
different filling materials and the plastic zones around the tunnel. The mechanism of the karst water burst in tunnels is summarized; and in light of the karst conditions exposed in Yuanliangshan tunnel
the principles for preventing the karst waterburst are established. Thus
construction of tunnels under complex karst conditions with safety and high efficiency has been achieved.