沂沭断裂带构造区光弹实验与地震危险区判定研究

Photoelastic experimental simulation on Yishu fault zone and earthquake risk zone judgment

摘要:

在对沂沭断裂带的地质构造环境、断裂带分布特征进行详细分析的基础上，采用聚碳酸酯材料制成沂沭断裂带构造区域的地质模型，分别运用集中、2点和均布等加载方式，使用光弹实验方法模拟特定构造框架下应力、应变场的变化特征。通过对光弹实验数据的分析，在对比不同加载方式下应力积累区域和地震危险区的基础上判定沂沭断裂带构造区中的地震危险区域。

Abstract:

Based on the detailed analysis on geological environment and fault zone distribution in the Yishu fault zone，the Yishu fault zone geological model is made of polycarbonate material. To simulate the specific structural framework of stress and strain fields，we used uniformed，concentrated and two-point loadings in photoelastic experiments. The seismic risk area in the Yishu fault zone is judged through photoelastic experimental data analysis and processing，which is based on the comparison of stress accumulation area and seismic hazard points in different loading ways.