地震映像勘探在工程场地地震安全性评价近场区工作中的应用

Application of seismic mapping exploration in seismic safety evaluation of engineering sites

在第四系覆盖区工程场地地震安全性评价近场工作中,活动断层的探测是一项重要工作,在目标层埋深几十米的情况下,地震映像勘探是进行断层探测的有效物探手段,结合唐山北郊热电2×300MW机组建设场地、沽源电厂建设场地的地震安全性评价中的应用实例,表明该方法进行断层探测具有明显的效果。

At site work of seismic safety evaluation in Quaternary System coverage area, active fault detection is an important work. When the depth of target layer is at several tens meter, seismic mapping exploration is an effective measure to detect active fault. The application in the site of Tangshan North Suburb Thermoelectric Plant and Guyuan Power Plant shows that its effect is notable.