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铁坑铁矿马坡岭尾矿库于1968年10月建成投产,有效库容203万m~3,截止1990年年底止已排入尾矿累计153万m~3。该库位于一开阔溶蚀洼地,东部山岭较高,南、北、西三面均为丘陵地带,整个库容自东向西呈降低之势,三面围坝,库区占地面积0.24km~2,总汇水面积0.33km~2,侧按坡加0.3m厚黄粘角砾砂土,并在土上用草皮覆满护坡及内坡,坡面加0.2～0.25m厚黄粘角砾砂土而成。随着子坝的不断提高,坝内液面也相应提高,主坝承受的压力愈来愈大,渗水量增多,80年代初主坝体母坝与尾矿堆筑子坝的
The iron pit mine slope Maailing tailings in 1968 October completed and put into production, effective storage capacity of 2030000 m ~ 3, by the end of 1990 has been discharged into the tailings accumulated 1530000 m ~ 3. The reservoir is located in an open depression, the eastern mountain is high, the south, north and west are hilly areas on three sides, the entire reservoir capacity is decreasing from east to west, surrounded by three dam, the reservoir area of 0.24km ~ 2, confluence Water area 0.33km ~ 2, side by side with 0.3m thick yellow sticky boulder sand, and on the soil covered with turf and slope protection, slope plus 0.2 ~ 0.25m thick yellow sticky conglomerate sand . With the continuous improvement of the sub-dam, the surface of the dam also increased accordingly, the main dam under more and more pressure, increased water seepage, the main dam in the early 80’s and the tailings piled the dam