| 桂东南容县花岗岩残积土粒度分形与物理参数的关系 |
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| 引用本文： | 廖丽萍,文海涛,赵艳林,杨云川,陈立华.桂东南容县花岗岩残积土粒度分形与物理参数的关系[J].山地学报,2019(2):222-229. |
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| 作者姓名： | 廖丽萍 文海涛 赵艳林 杨云川 陈立华 |
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| 作者单位： | 广西大学土木建筑工程学院;工程防灾与结构安全教育部重点实验室;广西防灾减灾与工程安全重点实验室;广西壮族自治区地质环境监测总站 |
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| 基金项目： | 国家自然科学基金(51609041);广西科技厅基金(2018GXNSFAA138187);广西教育厅基金(2018KY0027);广西国土厅2018年项目(GXZC2018-G3-19302-JGYZ)~~ |
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| 摘 要： | 桂东南容县花岗岩残积土滑坡灾害频发。为明确残积土粒度组成以便揭示滑坡形成机制,文中基于花岗岩残积土的土工试验数据和详查资料,利用分形理论揭示四个深度(0~30cm、30~50cm、50~70cm、滑动面(1~3m))土体粒度分形特征与颗粒含量、物理性质参数的关系。结果表明:(1)花岗岩残积土主要由细砾(粒径2~5mm)和砂粒(粒径 0.075~2mm)组成,粒度分布在无标度区间0.075,5]内具有一重分形特征;(2)残积土平均分形维数由大即小依次是:D50-70(2.7244)>D滑动面(2.6910)>D0-30(2.6893)>D30-50(2.6480);(3)分形维数与粉砂含量呈极显著正相关,正相关性随深度增加而增大,与细砾和粗砂含量呈负相关性,即分形维数越大,粉砂含量越高,而细砾和粗砂含量越低;(4)D30-50、D滑动面与渗透系数、干密度呈显著负相关。
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| 关 键 词： | 容县 花岗岩残积土 分形特征 物理参数 |
The Relationship between Particle Fractal and Physical Parameters of Granite Residual Soil in Rong County,Southeastern Guangxi Province,China |
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| LIAO Liping,WEN Haitao,ZHAO Yanlin,YANG Yunchuan,CHEN Lihua.The Relationship between Particle Fractal and Physical Parameters of Granite Residual Soil in Rong County,Southeastern Guangxi Province,China[J].Journal of Mountain Research,2019(2):222-229. |
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| Authors: | LIAO Liping WEN Haitao ZHAO Yanlin YANG Yunchuan CHEN Lihua |
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| Institution: | (College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Guangxi Key Laboratory of Disaster Prevention and Engineering Safety,Guangxi University,Nanning 530004,China;Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,Guangxi University,Nanning 530004,China;Guangxi Zhuang Autonomous Region Geological Environmental Monitoring Station,Guangxi Guilin 541000,China) |
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| Abstract: | LIAO Liping;WEN Haitao;ZHAO Yanlin;YANG Yunchuan;CHEN Lihua(College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Guangxi Key Laboratory of Disaster Prevention and Engineering Safety,Guangxi University,Nanning 530004,China;Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,Guangxi University,Nanning 530004,China;Guangxi Zhuang Autonomous Region Geological Environmental Monitoring Station,Guangxi Guilin 541000,China) |
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| Keywords: | Rong county Granite residual soil Particle fractal characteristics Physical parameter |
| 本文献已被 CNKI 维普 等数据库收录！ |
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