郑州市东区浅部断层的构造特征研究

断层活动性研究是大城市地震预测和防震减灾的基础性工作。在郑州活断层探测工作中,采用地震勘探方法查明了花园口、上街和须水3条断层的空间分布、地质特征及构造活动性,为郑州市未来的地震监测及抗震防灾工作提供了可靠的基础资料。另外,通过分析断层活动特征,提出了判定断层活动性的一些新认识,为大城市活断层探测特别是覆盖层较厚地区隐伏断层的探测提出了一种有效方法。

The Method Study of Active Fault Exploration in Cities

The fault activity study is basic works of earthquake prediction and relief work in big cities.In active fault exploration in Zhengzhou,we have found out the position,property and activity of the Huayuankou,Shangjie and Xushui faults using a seismic propecting method.And we achieved new understanding about the characteristics of the faults and gain the better results.This provides the reliable basic data for future earthquake forecast and relief work in Zhengzhou.In addition,we propose some viewpoint about deciding fault activity through analysing active characteristics of the faults.And we raises a effective method for exploring active fault in big cities and exploring concealed fault in the regions covered with thick overburden.