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1、露天矿地表湧水量的确定地表迳流(雨水、冰雪融化水)和露天贮水池(池塘、湖泊)以及位于露天矿范围内的水流(江河、小溪、水渠)是从地表流入露天矿的主要水源。 1)地表迳流,特别是在暴雨和融雪较多季节,能冲毁边坡、淹没或汙塞开采水平。例如,1972年夏天,暴雨之后,莱奇欣斯克露天矿的水量几乎成倍增加,边坡和排土场发生了大的塌方,冲毁了边坡和道路,挖掘机也被损坏;在这种条件下,排除暴雨带来的损失达2000000卢布。
1. Surface water inflow in surface mines Surface surface inflows (rainwater, ice and snow melt water) and open-air reservoirs (ponds, lakes) as well as water streams (rivers, streams and canals) located within the open-pit mines flow from surface to surface mine The main source of water. 1) Surface turbulence, especially in heavy rains and snowmelt seasons, can destroy slopes and inundate or contaminate mining levels. For example, after the heavy rains in the summer of 1972, the amount of water in the Letschinsk open pit mine almost doubled, large landslides occurred in slopes and dumps, the slopes and roads were destroyed, and the excavators were also damaged; Under the conditions, the loss caused by heavy rain up to 2000000 rubles.