摘要
初始地应力场是岩石工程数值模拟与稳定分析的必要条件,可靠的初始地应力场是工程设计与施工的可靠性与安全性的前提。结合溧阳抽水蓄能电站尾水岔管区的地质条件及地应力实测资料,运用有限元数值分析方法,对该区域初始应力场进行回归反演分析,获得对应于地应力构成因素的回归系数,并得到整个工程区的岩体初始应力场,为尾水岔管区域的设计和施工提供了可靠的依据。
The initial crustal stress field is the prerequisite of making numerical simulation and stability analysis for rock excavation works as well as the precondition of ensuring proper design and reliability and safety of construction of a hydropower project. The regression and inversion analysis was made for the initial stress field in the tail water bifurcated pipe area of Liyang pumped - storage hydropower project using the finite element numerical analysis method based on its geological conditions and the measured stress data, by which the regression coefficient that constitutes crustal stress and then the initial stress field of the rock mass in the whole project area have been obtained, thus giving a reliable basis for both design and construction of the tail water bifurcated pipe area.
出处
《云南水力发电》
2009年第5期30-33,47,共5页
Yunnan Water Power
关键词
尾水岔管
初始地应力场
反演分析
有限元法
tail water bifurcated pipe
initial crustal stress field
inversion analysis
finite element method
