鞍山市环境地质问题及矿山环境治理初探

鞍山市跨越下辽河平原和辽东山地两个地貌单元,地层建造复杂,地质环境脆弱.东南部山区已发生过崩塌、滑坡、泥石流.西北部平原区存在地下水超采和污染问题.鞍山市区环境地质问题相对更为严重,主要表现在:已发生过岩溶塌陷、地面沉降等地质灾害,而且还存在着数条活动断裂,城市周边西鞍山、东鞍山、大孤山、眼前山、齐大山五座铁矿山也分布在活动断裂带或其附近,矿山地质环境与城市地区环境交织在一起,具有很强的关联性.本文分别论述了城市及铁矿山地区、东部山地地区、西部平原地区三个区域环境地质现状,重点介绍矿业活动对城区地质环境影响、治理意义及提出相应的治理目标及工作内容.

DISCUSSION ON PROBLEM OF ENVIRONMENT GEOLOGY IN ANSHAN CITY AND THE HARNESSING MEASURES OF MINE ENVIRONMENT

Anshan City strides two land forms of Liaohe River flatland and eastern serra of Liaoning Province with complex geologic structure and frail geologic environment. In south-eastern serra eboulement, landslipe and mud-stone flow are observed, while in the north-western flatland over-pumping groundwater and environment pollution occur. The situation is more serious in Anshan city area, where not only lots of geologic hazard such as karst collapse and land subsidence have been taken place, but also several active faults exist. Xianshan, Donganshan, Dagushan, Yanqianshan and Qidashan iron mines are located in fault zones or near in the surrounding of Anshan city. So the mine environment is closely associated with the geological environment. The present situation of environment geology are analysed in east serra, west flatland and city area including iron mine area, and the effet of mine activty on geological environment in the city area, the significance and aim of harnessing, the main works are studied in this paper.