| 乌江彭水水利枢纽坝区软弱夹层研究 |
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| 作者单位： | China University of Geosciences，Wuhan 430074 |
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| 摘 要： | 在随机取样的基础上,进行化学成份分类不仅基本反映了软弱夹层的矿物成份,而且反映了其宏观构造和微观结构特征;各类软弱夹层的物理力学性质具有其独特的规律性。软弱夹层的类型受沉积岩相的严格控制,在岩相研究的基础上可以进行工程地质类比。利用概率理论,基于地层具有马尔柯夫链的性质,可以进行软弱夹层空间分布预测。借助原位单点剪切试验可以有效地确定软弱夹层的内摩擦角。
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| 关 键 词： | 软弱夹层 化学成份分类 马尔柯夫链 演化规律 内摩擦角 |
RESEARCHES ON WEAK INTERLAYERS AT THE DAM SITE OF WATER CONSERVANCY PROJECT OF PENGSHUI,WUJIANG RIVER |
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| Authors: | Su Aijun Yan Tongzhen |
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| Abstract: | Based on the probability specimen, the classification of chemical compositions in weak interlayers not only basically reflects their mineral constitution, but also structures. The physical and mechanical nature has its own law in each type of weak interlayers, The types of weak interlayers could be determined by the research on sedimentary facies. The analogy of engineering geology for weak interlayers could be made based on sedimentary facies reseach. Distribution of weak interlayers might be predicted by means of probability theory based on nature of Markov -chain of the stratu. Through the shear experiment on a specimen of a weak inter-layer in situ, its angle of shear inner friction might be effectively determined. |
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| Keywords: | weak interlayer classification of chemical compositions Markov-chain evolution law angle of shear inner friction |
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