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在新区矿井样本少的条件下，多类判别的问题一直难以解决，特别是发生过突水淹井的煤矿，各含水层的地下水有了一定的混合，判别水源就更为困难。因此需要一种快速、有效、准确的判别方法，对水源逐对辨别，并按概率最高者归类。将这一方法应用于任楼煤矿，对某工作面凭经验难以判别的水源进行确定，收到了很好的效果，肯定了注浆效果，取消了防水闸门。这一结论已被生产验证。这种方法在水样少的条件下具有普遍的用途。
Under the condition of few sample of mine in new area, many kinds of discrimination problems have been difficult to solve. Especially in the coal mines where water inrush occurred, the groundwater in each aquifer has a certain degree of mixing, so it is more difficult to judge the water source. Therefore, a fast, effective and accurate discriminant method is needed to distinguish water sources one by one and classify them according to the highest probability. Applying this method to Renlou Coal Mine, it is very difficult to identify the water source that is difficult to judge by a certain working face. It has achieved good results, confirms the effect of grouting and cancels the waterproof gate. This conclusion has been verified by production. This method has a universal use in watery conditions.