岩二 meaning in Chinese

iwaji

New technique of twice supporting in deep and soft surrounding rock roadway
深井软岩巷道围岩二次支护新技术
In this thesis , the rock mass is treated as a continuous porous elastic medium , on the basis of the seepage field of the rock mass , the pore - water - pressure distribution in the rock mass around the tunnels is evaluated . then , the seepage - induced stresses in the rock mass is studied . based on the analysis of stress field in the rock mass around the excavation , the stresses behavior of the pressure tunnel with the internal pressure is studied using the coupled seepage - stress model
本文将围岩看作连续的透水弹性介质，从压力隧洞围岩渗流场着手，分析压力隧洞围岩中水压力分布，进而研究围岩中渗流产生的应力场，结合对隧洞围岩二次应力场的分析，探讨考虑渗流场和应力场耦合作用下围岩三次应力场特性。