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云浮硫铁矿地处亚热带潮湿多雨的山区,属大型山坡露天矿山。该矿具备形成泥石流的三个基本条件。建矿初期,对泥石流危害认识不足,没有采取有效的防治措施就进行露天剥离,导致泥石流的发生。其中1975年6月12日发生的灾害最为严重,使附近五个公社、二十个大队、二个圩镇受灾。冲毁河堤4187米,水利工程2632米,受害面积2万亩,其中2672亩水稻全部被毁,冲毁水轮泵站一座,加工厂二间,钢筋混凝土公路桥一座,淹没房屋146间,危房20间,不包括该矿直接经济损失达61.22万元。
Yunfu pyrite is located in the humid and rainy subtropical mountains, a large hillside open pit mine. The mine has formed the debris flow of the three basic conditions. In the early stage of construction, lack of understanding of the hazards of debris flow, without effective prevention and control measures for open-air stripping, resulting in the occurrence of debris flow. Among them, the most serious disaster occurred on June 12, 1975, which affected five communes, 20 brigades and two towns in the vicinity. Washed up the river embankment 4187 meters, 2632 meters of water conservancy projects, affected area of 20000 acres, of which 2672 acres of rice were destroyed, washed away a water pump station, two processing plants, a reinforced concrete bridge, submerged 146 houses, 20 dilapidated buildings, excluding the direct economic losses of the mine up to 61.22 million.