Risk measurement and control of water inrush into qiyue mountain tunnel

Abstract

Qiyue mountain tunnel lies in Hurongxi highway in Hubei Province, soluble rocks are karstified intensively. To predict and prevent water inrush into tunnel when it is constructed, risk measurement is necessary to guide comprehensive advance geology prediction and prevention measures. Fuzzy mathematics model is put forward to distinguish potentially dangerous parts along tunnel. 7 main controls of rock karstification are selected as risk rank indicators. Use the fuzzy mathematics model differentiated the tunnel into 4 ranks of dangerous parts according to risk index. It is applied in Qiyue mountain tunnel and practice approves that the measurement and measures are useful. © 2009 Springer Berlin Heidelberg.