我队在某矿区进行详查和初勘。山势不高，交通方便，矿脉多呈水平状分布，控制标高为250—340米。勘探手段选择用50米间距的竖井工程。岩石为玄武玢岩和辉绿岩，中等硬度一般为7—8级。井深30—50米。最大涌水量为1.5吨/小时。去年以前我们就在这个矿区进行工作，当时情况是人工打眼配合部分提升排水机电设备进行。同时还进行了一个月的风钻凿岩试验，结果很不理 Our team conducts detailed investigation and preliminary survey in a mining area. The mountain is not high and the traffic is convenient. The veins are mostly distributed horizontally and the control elevation is 250-340 meters. The exploration method is to select a shaft project with a span of 50 meters. The rocks are basalt rock and diabase, and the medium hardness is generally 7-8. Well depth 30-50 meters. The maximum amount of water inflow is 1.5 tons/hour. Before last year, we worked in this mining area. The situation was artificially drilled with partially lifted drainage electromechanical equipment. At the same time, it also conducted a month of wind drilling rock drilling test, the results are ignored