吉林省九台市营城北矿沉陷区调查成果评价

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0.06 km2和0.025 km2，其余8处分别分布于巷道及老井口附近.沉陷区呈不规则的椭圆型，长轴方向平行于巷道，大小不一，沉陷深浅不等.对沉陷区的调查成果做出了合理的评价.

INVESTIGATION AND ASSESSMENT ON THE SINKING AREA IN THE NORTHERN MINING DISTRICT OF YINGCHENG COAL MINE IN JILIN PROVINCE

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. The basic outline and distributing scope of the sinkings are controlled. The two sinkings in the north of the surveying area are distributed on the sides of faults, covering areas of 0.06 km2 and 0.025 km2, respectively. The other eight sinkings are near the tunnel or old shaft, in different sizes and depths. The sinking areas are in irregular ellipse shapes, with the major axes paralleling to the tunnel. The investigation result is assessed reasonably.