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摘要: 为克服现有基于边坡岩体分级SMR法的修正分级法存在的缺陷,采用较为合理的修正模型,结合36个水电工程边坡,提出了改进的水电边坡岩体分级M-CSMR法。该法使用边坡类型系数替代开挖修正得分,同时考虑了开挖、水流冲刷及掏蚀作用的影响;将坡高对边坡岩体稳定性的影响引入分级中,给出坡高分级及评分原则;对SMR法中各指标权值重新进行调整。与岩体分级RMR法、边坡岩体分级SMR法及水电边坡岩体分级CSMR法进行了比较,结果表明M-CSMR分级法与经验评分最为接近,预测结果最好,最大绝对误差、平均绝对误差及剩余标准差均最小,因此M-CSMR是一种更优的水电边坡岩体分级方法。Abstract: In order to overcome the defects in the existing modified mass rating system originated from slope rock mass rating(SMR) system,a more rational correction model was adopted to establish a modified Chinese hydropower slope rock mass rating(M-CSMR) system based on thirty six hydropower slopes.The coefficients of slope types were used to take the place of excavation factor to comprehensively take into account the influences of excavation,water erosion and scour on rock mass stability;the influence ...
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Key words:
- slope rock mass rating /
- slope type /
- slope height classification /
- method of M-CSMR
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