重庆巴山水电站水库诱发地震的初步评价  

Preliminary evaluation of induced earthquakes in the Reservoir of Bashan Hydropower Station in Chongqing

作　　者：陈献程[1] 杨清源[1] 

机构地区：[1]中国地震局地质研究所,北京100029

出　　处：《华南地震》2004年第1期44-50,共7页South China Journal of Seismology

摘　　要：根据野外实地考察,对巴山水库区域地质构造特征,地震活动背景,区域应力场和水文地质特征等诱震条件进行了综合分析,并与周边其它已建水库的地质条件进行类比,对巴山水库可能发震的地段、最高震级和烈度以及对工程的影响作出初步评价,认为巴山水库诱发地震的上限震级为3 0级,相应诱发地震的烈度为VI度,对应的地震动峰值加速度为0 05g,对工程及民用建筑的影响可不考虑。We make a comprehensive analysis on inducing earthquake conditions of regional geological structure features, seismicity backgrounds, regional stress field and hydrogeological features of Bashan Reservoir based on field work and research. We also perform comparison with the geological conditions around other existing reservoirs. Then a preliminary evaluation is suggested for the potential segment inducing earthquakes, the maximum magnitude and intensity, and their influence on the engineering of reservoir. We think that the upper limit inducing earthquakes will not be greater than M_L3.0 with intensity Ⅵ. The corresponding peak acceleration of seismic shocks will be 0.005 g. It will not be considered that they effect on the civil and engineering architectural structures.

关 键 词：诱发地震 诱震条件 地震活动背景 巴山水电站 

分 类 号：P315.2[天文地球—地震学]