【摘要】 介绍了计算机隧道纵向轴应力的概念和一些方法，探讨了岩石膨胀性和隧道沉降之间的关系以及实测静力场。在易损弹性计算中，适当的选用了Ｍｏｈｒ－Ｃｏｕｌｏｍｂ和Ｈｏｅｋ－Ｂｒｏｗｎ的潜塑性函数的非关联屈服准则更多还原

【Abstract】 This paper describes the concepts and a numberical method to calculate the hydrostatic stress component and proposes analytical solutions for practical applications. The relations between rock mass dilatancy, tunnel displacements, and the in situ stress field are investigated. Mohr Coulomb and Hoek Brown yield criteria with appropriate plastic potential functions and nonassociated flow rules are used in the brittle plastic calculations.更多还原