银川隐伏活动断裂工程避让问题初步研究

Primary study on problems of engineering safety distance of the Yinchuan buried active fault

基于多手段多层次综合探测的结果,评估了银川隐伏活动断裂及其分支断裂未来产生地震地表破裂的可能性;通过对多种勘探剖面深浅部的衔接性分析,讨论了未来地表破裂发生的原地重复性。考虑勘探精度和前人对地震地表破裂带宽度的统计资料,确定了银川隐伏活动断裂未来地震地表破裂带的可能范围,划分了断裂附近的危险地带和不利地带,并给出了不同类型建筑物避让危险地带的建议距离,可供城市规划和建设参考。

Based on the result of multiple techniques and comprehensive multilevel exploration in the Yinchuan buried active fault,the paper evaluates the feasibility of engendering the earthquake surface rupture in the Yinchuan buried active fault and it s branch fault in the future.The paper also discusses the repeatability of earthquake surface rupture engendering at the same place.After considering surveying accuracy and previous statistical data of earthquake surface rupture,the paper determines the potential zon...