RISK VALUATION OF GEOLOGICE HAZARDS IN CONSTRUCTING QULI IRON ZINC MINE AREAS OF HENAN PROVINCE

According to analyze mine geologic environment and mining pattern of Quli iron zinc mine areas,this article consider that geologice hazards were not discovered in present conditions.Mine construction will have possibility of inducing land subsidence,ground fissures,rock fall,langside and debris flow.Risk degree of the geologice hazards is midding.This risk valuation of the geologice hazards is great significance for plan of prevention of mine areas geologice hazards.