APPLICATION OF GEOPHYSICAL PROSPECTING AND REMOTE SENSING TECHNOLOGY IN MINE ECOLOGICAL RESTORATION: A Case Study of Xingtai Garden Expo Park

The green development and ecological restoration is urgent due to underground mined-out areas and ground subsidence formed after years of mining. As there are different degrees of ground collapse caused by long-term mining of Xingdong Coal Mine in central Hebei Province, the area is no longer suitable for permanent human residence and agricultural farming. Therefore the Xingtai City government decided to build the central ecological park-Xingtai Garden Expo Park in the coal mining subsidence area. Through collection and analysis of seismic, electrical and other geophysical data in the study area, the coal seam occurrence forms, range of mined-out areas and water-rich condition are determined to guide the site selection of ecopark. The progress of mine ecological restoration is monitored by remote sensing (RS) technology. The results show that ascertaining the situation of coal mining through geophysical exploration of seismic and electrical methods is significant to guide the scientific planning of ecological restoration in surface of mining areas, while the real-time dynamic monitoring of the mine ecological restoration process through RS can provide data basis for eco-environment restoration and image data for comparative analysis and effect evaluation of eco-environment changes before and after treatment.