核电工程倾斜层状岩石地基横观各向同性分析

Analysis of Transverse Isotropy of Sloping Stratified Rock Foundation of a Nuclear Power Engineering

以某核电工程项目的岩土工程勘察为实例,从地质特征、地基岩石力学性质指标、地基岩体不同方向模量变化特征和地基岩体不同方向波速变化特征等静态和动态方面对倾斜层状岩石地基的横观各向同性进行了分析评价。结果表明,本核电项目核岛地基在平行于水平方向上是各向同性的,在核岛地基基础设计分析中可简化为均质成层地基。

Transverse isotropy of sloping stratified rock foundation of an nuclear power engineering was analyzed considering the static and dynamic aspects, including geologic characteristics, geotechnical parameters, variation of moduli in different directions, and variation of velocities in different directions. The results show that the rock foundation of the nuclear island is isotropic in the direction paralleled to the horizontal direction and could be considered as uniform layered foundation in the nuclear island foundation design and analysis.