| 软土抗剪强度指标的变异性 |
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| 引用本文： | 况龙川,汪敏. 软土抗剪强度指标的变异性[J]. 工程勘察, 2000, 0(5) |
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| 作者姓名： | 况龙川 汪敏 |
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| 作者单位： | 河海大学岩土工程研究所!南京210098(况龙川)，重庆建筑大学建筑工程学院!重庆400045(汪敏) |
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| 摘 要： | 引入土层剖面随机场模型 ,把土性参数的点变异性和空间变异性联系起来。利用上海地区 1 7个典型场地的直固快剪试验资料的统计结果 ,提出土层抗剪强度指标点变异系数的置信区间 ,建议在可靠度分析中使用置信上限估计值并考虑空间平均后的折减效应。
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| 关 键 词： | 软土 抗剪强度 相关距离 空间变异性 |
Variability of Shear Strength Indices in Soft Soil |
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| Kuang Longchuan et al.. Variability of Shear Strength Indices in Soft Soil[J]. Geotechnical Investigation & Surveying, 2000, 0(5) |
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| Authors: | Kuang Longchuan et al. |
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| Abstract: | Point variability and spatial variability of soil property parameters are associated by means of stochastic field model of soil profile. Confidence intervals of point variability factors of shear strength indices in soil layers are proposed based on the statistical results of direct shear tests in 17 typical sites in Shanghai district. The upper bounds of confidence intervals are suggested to be used for reliability analysis and reduction after spatial average should be considered. |
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| Keywords: | soft soil shear strength relevant space spatial variability |
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