| 黄土湿陷性及其成因 |
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| 引用本文： | 赵景波,岳应利,陈云.黄土湿陷性及其成因[J].地质力学学报,1997,3(4):62-68. |
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| 作者姓名： | 赵景波 岳应利 陈云 |
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| 作者单位： | [1]西安工程学院 [2]地矿部水文地质工程地质研究所 |
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| 摘 要： | 本文根据甘肃１７个剖面湿陷系数的测定，查明黄土湿陷性从上向下呈现波动变小，造成湿陷性垂向上变小的原因是土怪自重力，引起波动变化的原因是土层受成壤强弱的差异。作者根据镜下鉴定和湿陷性与成壤强弱关系的研究，将黄土微结构分成１８种类型，指出湿陷性是在几种特定的成壤过程中产生的，是成壤作用弱的黄土所具有特征，受风化成壤作用强的黄土不具湿陷性。
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| 关 键 词： | 湿陷性 变化规律 黄土 风化成壤 |
COLLAPSIBILITY OF LOESS AND ITS ORIGIN |
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| Zhao Jingbo,Yuo Yingli and Chen Yun.COLLAPSIBILITY OF LOESS AND ITS ORIGIN[J].Journal of Geomechanics,1997,3(4):62-68. |
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| Authors: | Zhao Jingbo Yuo Yingli and Chen Yun |
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| Institution: | Xi''an Engineering University,Xi''an Engineering University and Institute of Hydrogeology and Engineering Geology, Ministry of Geology and Mineral Resources |
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| Abstract: | It was found from the determination of the collapsibility of loess that there is a downward attenuation of collapsibility due to overweight or vertical fluctuation of collapsibi lity due to the degree of pedogenesis.The microstructure of loess is divided into 18 types on the basis of the microscopic study and the correlation between collapsibility and pedogenesis.It is thus known that collapsibility only occurs in some specific soils during pedogenesis,e.g.the brown soil,Chestnut soil,Sieronems,Chernozems,Loessial Soil and Drab Soil of CaCO3 that have experienced poor pedogenesis.No collapsibility occurs in wet soils that have undergone strong pedogenesis. |
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| Keywords: | fluctuation of collapsibility of soil intensity of pedogenesis |
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