| 煤炭勘查中岩土参数的统计分析 |
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| 引用本文： | 李睿.煤炭勘查中岩土参数的统计分析[J].煤田地质与勘探,2016,44(5):117-121. |
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| 作者姓名： | 李睿 |
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| 摘 要： | 基于岩土工程勘察规范中岩土参数标准值的确定方法，就修正系数在置信度为0.95和0.90的简化公式进行了讨论，并运用于煤炭勘查项目中具体力学参数的标准值计算。结果表明，工程实际中若遇试验数据不足，置信度0.95和0.90修正系数的简化公式均具有足够的精度；采用服从标准正态分布计算的置信度为0.90的单侧置信下限与采用正态分布计算的置信度为0.95的单侧置信下限相等。
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| 关 键 词： | 煤炭勘查 岩土参数 标准值 修正系数 |
| 收稿时间： | 2015-02-06 |
Statistical analysis of geotechnical parameters in coal exploration |
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| Abstract: | Based on the method of standard value of geotechnical parameters in Norm for investigation of geotechnical engineering, the simplified formulas of correction factor in confidence level of 0.95 and 0.90 are discussed, and applied to the calculation of standard values of mechanical parameters in coal exploration. The result shows that the standard values calculated by the said two formulae were close to that by the theortical look-up table method in small number of test samples, and one-sided 90 percent confidence lower limit obtained by the standard normal distribution coincides with one-sided 95 percent confidence lower limit obtained by the normal distribution with the circumstances of sample size of greater than 50. |
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