摘要
介绍了巷道围岩松动圈测试原理和方法;并通过对大冶铁矿尖林山采区两条巷道围岩松动圈测试数据的分析,得到了其围岩松动圈的厚度及其分布范围,对原有支护厚度的合理性进行了校核.同时对影响巷道围岩松动圈的一些因素作了分析,并认为在这些因素影响下,围岩松动圈厚度是变化的.
This paper introduces the theory and methods in measuring the broken zone, gets its thickness and checks the rationality of the primary protection by analyzing these data, which derive from measuring the broken zone in two roadways in Jianlinshan mining area. Some factors are analyzed, and the authors suggest that broken zone can change at the effect of the factors.
出处
《矿业工程研究》
2009年第1期18-21,共4页
Mineral Engineering Research
基金
湖南省教育厅项目(06C320)
关键词
软岩
松动圈
声波测试
soft rock
broken zone
measuring by sound wave
