| 引黄入晋工程大梁水库坝基黄土湿陷变形特征及对工程的影响 |
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| 引用本文： | 宋岳.引黄入晋工程大梁水库坝基黄土湿陷变形特征及对工程的影响[J].工程地质学报(英文版),1995,3(3):43-49. |
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| 作者姓名： | 宋岳 |
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| 作者单位： | 水利部电力工业部天津勘测设计研究院,天津300222 |
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| 摘 要： | 引黄入晋工程大梁水库坝基存在大面积厚层上更新统（Q3）黄土。通过大量试验数据统计,湿陷起始压力、湿陷系数峰值的研究,以及不同埋深黄土微观结构的扫描电子显微镜研究,证实黄土的湿陷主要受架空孔隙的控制,随着土层埋深的加大,黄土结构逐渐由架空结构向局部架空或架空镶嵌型结构转变,因而湿陷性也逐渐减弱,为坝基黄土工程处理措施提供了依据。
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| 关 键 词： | 坝基 湿陷系数 架空结构 不均湿陷变形 |
CHARACTERISTICS OF SUBSIDENCE DEFORMATION OF LOESS ANDTHEIR EFFECT ON THE DAM FOUNDATION OF DALIANG RESERIVOR |
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| Sony Yue.CHARACTERISTICS OF SUBSIDENCE DEFORMATION OF LOESS ANDTHEIR EFFECT ON THE DAM FOUNDATION OF DALIANG RESERIVOR[J].Journal of Engineering Geology,1995,3(3):43-49. |
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| Authors: | Sony Yue |
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| Institution: | Tianjin Institute for Investigation and Design, Ministry of Water Conservancy |
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| Abstract: | There exist exstensive thick Pleistocene (Q3) loess on the dam foundation of Daliang Reservoir for diversion of Huanghe River into Shanxi Province.Statistic of large number of test data,study of initial subsidence presure and subsidence coefficient peak,and SEM study of microstructures of the loess from different deoths indicate that the subsidence of loess is mainly controlled by void structure.The subsidence rate decreases with increasing burial depth of loess and gradual transition of void structure to local void or mossaic void structure of the loess.It provides a basis for engineering treatment of the otess on the dam foundation. |
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| Keywords: | Dam foundation Subsidence coefficient Void structure Uniuniform subsidence deformation |
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