场地断裂工程评价及对策的讨论

Discussion on Engineering Evaluation and Countermeasure of Site Fault

场地断裂的工程评价是地震区工程建设中尚未完全解决的问题之一。本文提出并讨论了有关场地断裂概念的界定问题、区分两类不同性质的地震影响、覆盖层厚度的考虑、断裂的两种不同活动方式——蠕滑与粘滑、活动断裂与发震断裂必须经过专门研究、勘察才能做出工程评价等问题。

Engineering evaluation of site fault is one of the problems not thoroughly solved in the construction of seismic area. Relevant issues are proposed and discussed herein such as, the limitation of conception of site fault, differentiation between the two kinds of seismic effects of different features, consideration of the thickness of overlying layers, two types of fault activities——creep slip and sticky slip, and engineering evaluation can only be done after active fault and earthquake triggering fault be explored and investigated particularly.