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1982年6月8日早班发现双格排水斜槽有尾矿砂间发性的漏出。8月7日发现盖板未盖好,有缝隙,个别地方因施工质量不好,两侧壁呈蜂窝麻面。严重的是斜槽内排由连接井往上数第16块盖板的一端已塌落,第1块盖板靠中间的一端搭头只有50毫米(设计100毫米)。这是尾矿坝重大安全隐患。第32～35和45～47位置都有较大的涌水。外排
On June 8, 1982, it was found that there was an accidental leakage of tailing sand between double-row drainage chutes. August 7 found that the cover is not covered, there are gaps, due to poor construction quality in some places, the two sides of the wall was honeycomb Ma surface. Seriously, the end of the 16th cover in the chute, which is up from the connecting shaft, has been collapsed, and the first cover has only 50 mm (100 mm design) in the middle by one end. This is a major safety hazard tailings dam. 32 ~ 35 and 45 ~ 47 have a larger gushing water. Efflux