| 高精度连续函数对边坡岩体分级的修正 |
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| 引用本文： | 张菊连,沈明荣.高精度连续函数对边坡岩体分级的修正[J].西南交通大学学报,2011,46(1):36-41. |
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| 作者姓名： | 张菊连 沈明荣 |
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| 作者单位： | 1. 同济大学土木工程学院,上海,200092
2. 同济大学土木工程学院,上海,200092;同济大学岩土及地下工程教育部重点实验室,上海,200092 |
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| 基金项目： | 上海市重点学科建设资助项目(B308) |
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| 摘 要： | 为克服SMR(边坡岩体分级)法已有连续函数修正拟合精度不高的缺点,基于离差平方和最小原理,采用新的连续函数对"表格式评分"的SMR法进行了修正,给出了点荷载强度、单轴抗压强度、岩体质量指标、不连续面间距、不连续面产状调整系数、不连续面延伸长度、张开度及充填物厚度评分的连续函数.用新提出的修正SMR的连续函数对水电、矿山、公路等57个边坡岩体进行了稳定性分级,剩余标准差为2.180,相关系数为0.996 7,比其他修正SMR法更接近表格式SMR法的评分结果.
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| 关 键 词： | 边坡岩体分级 拟合精度 离差平方和最小原理 连续函数 |
High-Accuracy Continuous Function-Based Modification of Slope Mass Rating |
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| ZHANG Julian,SHEN Mingrong.High-Accuracy Continuous Function-Based Modification of Slope Mass Rating[J].Journal of Southwest Jiaotong University,2011,46(1):36-41. |
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| Authors: | ZHANG Julian SHEN Mingrong |
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| Institution: | ZHANG Julian1,SHEN Mingrong1,2(1.School of Civil Engineering,Tongji University,Shanghai 200092,China,2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,China) |
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| Abstract: | In order to raise fitting accuracy of the existing modified continuous functions for slope mass rating(SMR),based on the least-squares-fit algorithm,the table-form-rating SMR was modified by using new continuous functions.Continuous fitting functions of ratings for point-load strength,uniaxial compressive strength,rock quality designation,discontinuity spacing,persistence,separation width,filling thickness and geometric correction factor for discontinuity and slope surface were proposed.These proposed funct... |
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| Keywords: | slope rock mass rating fitting accuracy least-squares-fit algorithm continuous function |
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