Practice and application of ecological restoration technology for land reclamation by ditch filling in Huoshaopu Mine gangue mountain
In order to ensure the safe and stable use of gangue mountain,practice and application of ecological technology of land reclamation by ditch filling in gangue mountain were carried out,by making full use of the gangue stored in the original gangue moun-tain,mixing gangue with fertilizer into planting soil,using 10 mm coal gangue as the raw material for soil making,under the premise of the optimal mixing ratio:coal gangue∶organic fertilizer∶sawdust=5∶1∶1,the vegetation survival rate reached more than 99％,and after later tests,it was finally concluded that before laying 300～500 mm thick artificial soil,100 mm thick fly ash should be laid as a water retaining layer.Finally,the planting soil should be covered in the ecological restoration area and vegetation with high survival rate should be planted to achieve ecological restoration of the gangue mountain.This effectively solves the pressure of gangue storage,accelerates the progress of ecological restoration of the gangue mountain,and opens up a new path for gangue utilization,providing theoretical and prac-tical experience for the treatment of the gangue mountain.
gangue mountainecological restorationgangue making soilland reclamation
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