循环载荷作用下周期充水岩石变形规律的研究

针对三峡库区所面临的周期蓄、排水而带来的重大工程实际和理论问题，在综合阐述国内外在有关循环载荷作用下岩石疲劳变形损伤破坏研究成果的基础上，从岩石变形全过程曲线的4个基本阶段及其相应3个特征点角度，提出了探讨循环载荷作用下周期充水岩石变形损伤演化规律的研究思路和基本方法，为正确认识岩体在周期性荷载作用下的破坏机理进而科学地评价工程岩体的长期稳定性奠定了理论基础。

Study on the Deformation Characteristic of Rocks Waterlogged Periodically under Cyclic Loading

Aiming at the actual and theoretical problems in engineering work due to rising or falling of the water level in the Three Gorges Reservoir area, based on the summary of the research results about rock fatigue deformation and damage under cyclic loading, this paper puts forward the research thinking and the rudimental method to probe into the fatigue deformation characteristic of deformation and damage of the rocks waterlogged periodically under cyclic loading from the angles of four basic steps in the stress-straln curve of rocks and three corresponding characteristic points and with the results to lay the theoretical foundation to understand rightly the damage mechanism of rocks under cyclic loading and to evaluate reasonably the long-term stability of the rock-mass,