上坝施工道路分期、分层布置；
The access road to the dam was arranged by stages and layers.
试验坝采用爆破松动砒砂岩，推土机运料上坝及碾压的施工方法。
The tested dam used the method of demolishing for loosing, materials carried by bulldozers and roller compaction after.
结果表明大宝山矿区选矿水污染饮用水与上坝村消化道肿瘤高发有密切关系。
Results There was close relationship between the incidence of enteron tumors in Shangba Village and the drinking water polluted by the Dabaoshan mine.
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