核电厂址隐伏断裂探测中的地震勘探方法研究

Study on the seismic exploration method to detect buried fault in the site of Nuclear Power Plant

总结了近年来在多个核电厂址地震安全性评价中陆域覆盖区和海域浅层地震勘探的工作经验,通过对不同的典型工程实例分析,讨论了在不同地质和地球物理条件下,用浅层地震反射法探测隐伏断裂时应注意的关键性技术问题.提出了在不同地质条件下实施隐伏断裂探测时的地震仪器设备选择、方案设计、参数选取、断层识别的基本方法.本文的研究成果可为类似地区开展核电厂址能动断层探查工作提供实用性的技术资料.

The work experience of shallow seismic exploration in land and water areas for earthquake safety evaluation of nuclear power sites is reviewed in this paper. By analyzing different typical engineering cases, some key technical issues, to which more attention should be paid in the buried fault detection, are discussed for different geological and geophysical conditions. For different geological conditions some critical schemes to implement the seismic exploration are presented, such as equipment selection, layout design, quantitative parameters optimization and the method to identify the fault. This study provides a practical and technical guide for detection of capable fault in nuclear power sites with similar geological conditions.