宝鸡─彭县、天水─宝轮地区六个重点断裂场点的地震危险性分析

宝鸡─彭县、天水─宝轮地区六个重点断裂场点的地震危险性分析程万正，贾晋康，李桂芳，黄圣睦，程式（四川省地震局）除按规范要求外，根据该工程地震项目多个计算场点的分布情况，在作地震活动性评价时将研究区范围扩大．分析地震活动性和危险性的区域北纬为２９°．５...

Active Fault Investigation and Seismic Risk Analysis in Baoji-Pengxian,Tianshui-Baolun Areas Study or Discussion Group of Petroleum Pipeline

The authors made on-the-spot investigations in detail in Baoji-Pengxian, TianshuiBaolun areas; extensively collected the data of geology trenching and peeling-off soil;gathered rich years samples and pieces of tectonic rock;surveyed the sections of fluvialterrace. At the same time, the authors collected the data of remote-sensing pictureinterpretation and the results researched by predecessors in the research regions. Based onthe data, the authors made analysis of geology tectonic background, evaluation of faultactivity, seismogenic ability evaluation of the Holocene fault and evaluation of deformationand evaluation of seismic risk of the six major regions in the areas. The results of active faultinvestigation and the seismic risk analysis are furnished.The research areas are situated inthe place where Chuan,Shan, Gan three provinces meet. Previously seismic and geologyinvestigation and study were made very little in a systematic way in unity. To sorting outand publish the research results affords any one of the same trade or occupation fordiscussion and the parties concerned for reference.