永城市城市地质环境特征及城市规划地学建议

Characteristics of Urban Geological Environment and Suggestions of Urban Geology Planning about Yongcheng City

永城市是以煤炭资源开发而发展起来的矿业城市,其城市地质环境除受地形地貌、地质、构造、水文工程、岩土条件等影响外,更受煤矿开发布局及采煤沉陷影响。从上述方面分析了永城市城市地质环境特征,指出其最主要环境地质问题为煤炭开发引发的地面沉降(伴随地裂缝)、疏排地下水引起区域地下水位下降及地下水污染及固废堆存造成土壤水体污染等。从地学角度对永城市城市规划提出建议,将永城市划分为8个地学建议区。

Yongcheng is a mining city developed from the exploitation of coal resources. Its urban geological environment is not only influenced by topography and landform, geology, structure, hydrology engineering and geotechnical conditions, but also influenced by the layout of coal mine development and mining subsidence. This paper analyzes the urban geological environment characteristics of yongcheng city from the above aspects, and points out that the most important environmental geological problems are the land subsidence (accompanied by ground fissures) caused by coal development, the decrease of regional groundwater level caused by the drainage of groundwater, the pollution of groundwater and the soil water pollution caused by solid waste storage. This paper puts forward some suggestions on the urban planning of yongcheng from the perspective of geoscience, and divides yongcheng into 8 geoscience suggested areas.