沈阳城市地质环境问题研究

对沈阳煤田采空区地面沉陷、地下水污染和土壤重金属污染问题展开了深入的调查分析研究.结果表明：沈南煤田矿区各沉陷区面积为3.85~17.19km²，沈北煤田矿区各沉陷区面积为0.21~4.89km².研究区地下水污染从山前地带到平原地区逐渐加重.东部山前地带工业不发达，污染较少；北部和南部地区地下水埋藏较深，污染源较少，不易造成污染，整体污染较轻；西部工业发达，污染源较多，地下水污染较重.沈阳市区土壤重金属污染较为普遍，以铁西区原工厂区为中心形成面积性污染，中心城区及于洪工业区存在Se、Zn、Pb、Hg高浓度区.

STUDY ON THE GEOLOGICAL ENVIRONMENT OF SHENYANG CITY

This paper investigates and analyzes the surface subsidence of mined-out coalfield,groundwater pollution and heavy metal pollution of Shenyang City.The results show that the subsidence areas are 3.85-17.19 km2 in the coalfields in Southern Shenyang and 0.21-4.89 km2 in the north.The groundwater pollution becomes heavier from the piedmont to the plain in the study area.The eastern piedmont area is less polluted due to undeveloped industry.In the northern and southern regions,the groundwater is buried deeply less polluted sources,therefore the pollution is slight.In the west,where the industry is developed with more pollution sources,the groundwater is heavily polluted.Heavy metal pollution of soil is common in Shenyang,with Tiexi District as the center to form areal pollution.There is a high concentration zone of Se,Zn,Pb and Hg in the central city and Yuhong industrial area.