RMR法评价体系的修正及工程应用

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摘要现有RMR法评价体系中的单轴抗压强度、RQD值和结构面间距这3个指标都是对某一区间进行评分，且均以保守取值应用于实际工程中。通过选取大量已有工程实践的岩体质量评价数据，对现有RMR法评价体系中的单轴抗压强度、RQD值和结构面间距这3项的评分标准进行分析，对RMR法评价体系中前3项的指标值的评分区间进行修正，并修正评分结果的非线性阶梯变化特点，使评分具有线性连续性。建立指标值与其评分值之间线性关系表达式。将修正结果应用于工程实践，取得较好的评价效果，为岩体质量评价及工程人员提供参考。

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关键词 ：岩石力学, RMR法, 回归分析, 指标修正, 线性关系

Abstract：The three indices of uniaxial compressive strength，RQD value and structural face interval in the existing RMR method evaluation system aim at the grading value of a interval，and are all applied to engineering with the conservative values. By selecting a large number of rock quality evaluation data related to the present engineering projects，the grading standard of the three indices is studied and their grading intervals are corrected. The characteristic of nonlinear step changes of the grading values is corrected，which makes the grading values become linear and continuous. The linear relationship expression between the indices value and grading value is built. The corrected results are applied to the actual projects and get good effect，which can provide a certain reference for the rock mass quality evaluation and the engineers.

Key words： rock mechanics RMR system regression analysis index correction linear relationship

收稿日期: 2012-08-13

引用本文:

王乐华，李建荣，李建林，王孔伟，许晓亮，宛良朋. RMR法评价体系的修正及工程应用[J]. 岩石力学与工程学报, 2013, 32(s2): 3309-.
WANG Lehua，LI Jianrong，LI Jianlin，WANG Kongwei，XU Xiaoliang，WAN Liangpeng. CORRECTION OF RMR SYSTEM AND ITS ENGINEERING APPLICATION. , 2013, 32(s2): 3309-.

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http://www.rockmech.org/CN/Y2013/V32/Is2/3309

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