The 3-D seismic surveying method is adopted in the investigation on the sinking area in the northern mining district of Yingcheng coal mine in Jiutai, Jilin Province.

• 利用三维地震勘查手段,对九台市营城北矿沉陷区进行调查,实现了对沉陷区基本轮廓和分布范围的控制,测区北部2个沉陷区分布在断层两侧,沉陷面积分别为0。