一条断裂的活动性鉴定及其工程意义*

(1.山东省地震工程研究院,山东 济南 250021; 2.青岛理工大学,山东 青岛 266033)

活动性鉴定; 断裂探测; 工程选址; 应用价值

Age Determination of A fault and its Engineering Significance
WANG Hua-lin1,WANG Ji-qiang1, DU Li-ying1, GAI Dian-guang1,

(1. Shandong Institute of Earthquake Engineering, Jinan 250014, Shandong,China)(2. Qingdao Technological University, Qingdao 266033, Shandong,China)

identification of active fault; fault detection; site selection of project; application value

备注

拟建的某水利工程场地存在一规模较大的北北东向断裂,定名为F1断裂。通过对F1断裂的地质雷达探测、工程地质资料分析、地震地质调查、断裂断错和上覆第四纪地层年代测试等工作,鉴定了此断裂的活动性,评价了断裂对工程的影响,提出了工程选址和设计建议,为断裂活动性鉴定在工程选址和设计中的实际应用提供了一个范例。

A NNE fault named F1 was found on the site of a proposed irrigation project. Through geological radar detection, seismo-geological investigation, the analysis of the engineering geological data, and the test of dislocation fault and overlying chronology of quaternary strata, we identify the activity, vertical displacement and slip rate of F1 fault. Then we assess the influence of F1 fault on the project and put forward the selection of sites and the design plan for the project. In this way, we provide a good example of the practical application of the identification of fault's activity to the selection of sites and the design plan for the construction project.