【摘要】 对于地下有压隧洞，根据流变力学的基本理论，分析了在两向等压条件下隧洞围岩流变引起支护衬砌内部及其衬砌本身流变而产生的应力和位移随时间的变化规律，建立了与时间有关的支护衬砌破坏依据，对隧洞支护设计和预计衬砌不同时期的受力和稳定性有一定的参考价值。更多还原

【Abstract】 Based on the rhology theory,the law of time-dependent stress and displacement are analysed for the case of rock′s creeping and lining′s creeping when the tunnel has the same pressure in two dimensions.The time-dependent failure criterion for tunnel lining is established.The research is of significance for supporting design of tunnel and the prediction of stress in the lining and its stability at different periods.更多还原