卡拉水电站左岸边坡危岩体发育规律与防治原则

摘要

The outcrop lithology of left bank, Kala Hydropower Project, mainly covers deteriorated sand rock, sandy slate, marble and car-bonaceous slate in a little quantity. Impacted by weathering difference, unloading fracture and topographic conditions, the dangerous rock-mass on left bank is developed widely. Through statistics of elevation and scope of all dangerous rock masses distribution, in the paper, the development characteristics and law of the dangerous rock mass are analyzed and concluded as well as proposals for prevention and treatment of the dangerous rock mass are provided.%卡拉水电站左岸边坡出露的岩性主要有变质砂岩、砂质板岩、大理岩及少量炭质板岩；受风化差异、卸荷裂隙、地形条件等因素影响，左岸边坡危岩发育广泛；文章通过对所有危岩体的分布高程、范围等统计，分析总结危岩体发育特征及规律，并对危岩体的防治原则提出建议。