在开采同和矿业公司松峰矿时,为解决重压带(地压大的地区)中运输巷道难于维护,曾两次被迫停止施工的困难问题,对使用钢框混凝土支护,即在混凝土支护内外两侧用金属支架的联合支护做了一系列研究,解决了巷道的支护机理。本文详细介绍了在下部水平黑矿(含方铅矿、闪锌矿、重晶石、黄铜矿等的黑色混 When mining Tongfeng Mine with Tonghe Mining Company, in order to solve the difficult road maintenance problem in heavy belt (area under heavy pressure), it was twice forced to stop the construction. For the use of steel frame concrete support, that is, Both inside and outside the protection of the metal support with a joint support made a series of studies to solve the roadway support mechanism. This article describes in detail the level of black ore (including galena, sphalerite, barite, chalcopyrite and other black mixed