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我国有色金属矿山,多属急倾斜脉型矿床,目前采深多为200～500米(中等深度)。近20年来,很多矿山发生了影响生产、危害安全的地压活动。为此,本文根据湘赣两省有关矿山的实际调查资料,对此类矿山的地压活动进行一些探讨,以期对控制地压活动,减少危害有所裨益。概况湘赣脉型金属矿山,地处高山,地形陡峻崎岖,矿区相对高差200～500米,少数达700～1000米以上。矿区地层,多属泥盆纪地层。矿体围岩,除田湖铁矿大茶园矿区较软
China’s non-ferrous metal mines, mostly steep-grained vein deposits, the current mining depth of 200 to 500 meters (medium depth). In the past 20 years, many mines have undergone ground-breaking activities that affect production and threaten safety. Therefore, based on the actual survey data of the relevant mines in Hunan and Jiangxi provinces, this paper discusses some of the underground pressure activities of such mines in the hope of controlling the underground pressure activities and reducing the harm. Overview Hunan and Jiangxi vein type metal mines, located in the mountains, the steep and rugged terrain, the mining area relative elevation 200 ~ 500 meters, a few of 700 to 1000 meters above. Mining strata, mostly Devonian strata. Surrounding rocks of ore body, except Tianhu iron ore large tea garden soft area