Classification and quality assessment of irregular columnar jointed basaltic rock mass for hydraulic engineering
Classification and quality assessment of irregular columnar jointed basaltic rock mass for hydraulic engineering
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DOI：
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发表时间：
2011
影响因子：
2.4
通讯作者：
Shi An-chi
中科院分区：
文献类型：
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作者：
Shi An-chi
对国内涉及柱状节理岩体问题的水电工程资料进行了整理和分析。在此基础上，根据白鹤滩水电站工程现场勘察和现场试验结果，对不规则柱状节理玄武质岩体进行了分类和质量评价。探讨了适宜的岩体分类方法，提出了柱状镶嵌块状构造和柱状镶嵌碎裂构造的分类方法。应用RMR和GSI岩体质量评价方法对这两种节理岩体进行了分析，并与美国汉福德玄武岩废料隔离工程的评价结果进行了比较。结果表明，RMR法和GSI法能够较好地描述白鹤滩水电站不规则柱状节理玄武质岩体的工程力学特性。
The data of hydropower projects involving the problem of columnar jointed rock mass in China were gathered and analyzed. On this basis the classification and quality assessment of irregular columnar jointed basaltic rock mass were investigated according to the site survey and in-situ tests results for the Baihetan Hydropower Project, China. The appropriate rock mass classification method was discussed and the classification method for columnar mosaic blocky structure and columnar mosaic cataclastic structure were proposed. The RMR and GSI rock mass quality assessment methods were applied to analyze these two kinds of jointed rock mass and compared with the result of the method applied to the Hanford Basalt Waste Isolation Project, USA. The results show that the RMR method and GSI method can well describe the engineering mechanical properties of irregular columnar jointed basaltic rock mass in the Baihetan Hydropower Project.