一、序言在某锡矿山,改用分段崩落采矿法的房柱采矿方案时,水平巷道掘进工程量大为增加。为了保证采矿方法的生产能力,必须采用高效率的无轨巷道掘进法。为了保证劳动力的平衡和计划的开采量,工作面掘进效率应从目前6.5米~3/人班(单工作面)逐渐提高到16米~3/人班。本文介绍第一阶段的从单 First, the preamble In a tin mine, the use of subsided mining method of housing and pillar mining program, the level of roadway tunneling project greatly increased. In order to ensure the production capacity of mining methods, it is necessary to adopt an efficient trackless tunneling method. In order to ensure the balance of the labor force and the planned extraction, the efficiency of heading face excavation should be gradually raised from the current 6.5m ~ 3 / person class (single face) to 16m ~ 3 / person shift. This article describes the first phase of the single