摘要
岩石质量指标(RQD)是评价岩体完整性及质量分级的一个重要指标。针对矿区工程地质勘查规范中推荐的岩体质量评价方法,详细分析了岩石质量指标(RQD)在用于岩体分类与评价中存在的岩心长度的计算、采取率、硬度和结构对其赋值大小的影响,以及对规范理解的差异,提出了解决这些问题的有效方法与途径,为岩石质量指标(RQD)的正确应用及煤矿床岩体质量合理评价做了有益的探讨。
The rock quality designation（RQD） is an important index to assess rock mass integrity and quality classification.In allusion to rock mass quality assessment methods recommended in the ＂Exploration Specification of Hydrogeology and Engineering Geology in Mining Areas＂,analyzed existing issues of rock core length determining,core recovery rate,rock hardness and structure impacts on value assignment during the use of RQD on rock mass classification and assessment,as well as different understanding on the ＂Specification＂ in detail.Finally put forward effective methods and paths to solve these issues,and made useful discussion for exact application of RQD and reasonable assessment of coal deposit rock mass quality.
出处
《中国煤炭地质》
2010年第12期51-53,共3页
Coal Geology of China
