工程岩体力学参数状态相关性初步分析及应用

A Preliminary Study and Application of the State-correlation of Engineering Rock Mass Mechanical Parameters

基于岩体与工程相互作用和影响构建了工程岩体系统,提出了工程岩体状态分类:岩体结构状态、地质环境状态、工程作用状态。以状态描述了工程岩体的天然产出、赋存地质环境和工程作用,分析了状态因子对工程岩体系统力学性质的影响,论证了岩体力学参数的状态相关性;结合岩体工程设计与实践,给出了工程岩体状态分类,研究了工程岩体状态因素的表述和度量方法。在此基础上,提出了考虑状态相关性的工程岩体力学参数取值的一般思路,为工程岩体力学参数取值这一关键技术问题开辟新的研究途径。

A new engineering rock mass system is established based on the interaction and influence of rock mass and engineering and the state classification of rock mass is put forward, in which, the rock mass formation, geological circumstances and engineering characteristics are considered as different types of states. The influences of state factors on mechanical properties of engineering rock mass system are analyzed, and the state-correlation of rock mechanical parameters is demonstrated. Combined with the design and practice of rock mass engineering, the classification of engineering rock mass is given, and the expression and quantifying method of rock mass state factors are studied. On this basis, the general idea for determining the values of mechanical parameters after considering the state correlation is put forward,, which develops a new way to determine the values of engineering rock mass mechanical parameters.