五峰山—西来桥断裂浅部构造特征  

Shallow Structural Features of Wufengshan-Xilaiqiao Fault

作　　者：郝景润 范小平[1] 钱浩 郑雷明 HAO Jingrun;FAN Xiaoping;QIAN Hao;ZHENG Leiming(Nanjing Tech University,Nanjing 210009,China;Geo-engineering Investigation Institute of Jiangsu Province,Nanjing 210012,China)

机构地区：[1]南京工业大学,江苏南京210009 [2]江苏省地质工程勘察院,江苏南京210012

出　　处：《防灾减灾工程学报》2021年第5期1129-1136,共8页Journal of Disaster Prevention and Mitigation Engineering

基　　金：国家自然科学基金项目(41874051);镇江市活动断层探测与地震危险性评价项目(ZJZCFS-2017)资助。

摘　　要：利用浅层地震和钻孔联合剖面法对五峰山—西来桥断裂浅部构造特征进行了研究。结果表明:(1)五峰山—西来桥断裂是一条总体走向NW、倾向NE、视倾角60°,上断点埋深约96 m的隐伏正断层,测线控制区域最大视断距约10 m;(2)五峰山—西来桥断裂在浅部区域走向多变,从姚桥镇西侧沿北北西向延伸至魏家沟村,然后沿北西向延伸至北港路与普照路交汇处附近,最后从大路镇东部通过;(3)综合勘探和钻探结果,初步认为五峰山—西来桥断裂最新活动时代为早更新世早期—中更新世早期。The paper analyzes the shallow structural features of Wufengshan-xilaiqiao fault by the methods of shallow seismic exploration and composite drilling section.The results show that:(1)Wufengshan-Xilaiqiao fault is a hidden fault with an overall strike of NW direction,a tendency to NE direction,and the apparent dip angle of fault is about 60 degrees.Its upper breaking point is buried approximately 96 m below the ground surface,the maximum apparent fault distance in the control area is about 10 m;(2)The strike of Wufengshan-Xilaiqiao fault is changeable in the shallow area,extending from the west side of Yaoqiao Town to Weijiagou Village,then extending from the west to the intersection of Beigang Road and Puzhao Road,and finally passing through the east of Daolu Town;(3)Combining the results of seismic exploration and drilling,it is preliminarily considered that Wufengshan-Xilaiqiao fault latest activities for the early periods of Early Pleistocene to early periods of Middle Pleistocene.This paper is of positive significance for the comprehension of the fault activity,evaluation of its seismic risk,as well as the planning of urban anti-seismic fortification.

关 键 词：五峰山—西来桥断裂 浅层地震勘探 钻孔联合剖面 

分 类 号：TU443[建筑科学—岩土工程]