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一、前言湘东钨矿为高温热液急倾斜薄矿脉矿床,已有五十多年开采历史,一直采用留矿法采矿(局部采用分层崩落法),至1976年年底,采矿深度已达480米,采空总体积197万立方米。由于开采深度和采空区逐
I. INTRODUCTION The Xiangdong tungsten deposit is a high-temperature hydrothermal steep dipping thin-vein deposit. It has been mining for more than 50 years and has been using the mineral retention method (with partial caving). By the end of 1976, the mining depth had reached 480 meters, mined the total volume of 1.97 million cubic meters. Due to the mining depth and by-go go by