| 河间地区地裂缝分形特征研究 |
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| 引用本文： | 徐继山,马润勇,彭建兵,杨旭东,马学军,安海波.河间地区地裂缝分形特征研究[J].自然灾害学报,2012(3):177-183. |
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| 作者姓名： | 徐继山 马润勇 彭建兵 杨旭东 马学军 安海波 |
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| 作者单位： | 长安大学地质工程与测绘学院;西部矿产地质资源与地质工程教育部重点实验室;中国地质调查局水文地质环境地质调查中心 |
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| 基金项目： | 中国地质调查局计划项目(1212010914019) |
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| 摘 要： | 基于分形理论研究了河间地区地裂缝的分布分形、受控分形以及影响分形特征,利用MAT-LAB软件分别计算了地裂缝、活动断裂、地下水、地面沉降等相关物理量的分维值。地裂缝的发育具有自组织性,其分维值的大小及变化反映了地裂缝活动的复杂性。地裂缝平面、剖面分形特征反映了该区域孕裂应力场在平面和纵深方向上的非均一性。地裂缝的形成和发育可以看作是断裂运动的一种调整,影响地裂缝断裂的分维值具有一定的区间。地下水开采、地面沉降作用与地裂缝活动存在很大的关联。
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| 关 键 词： | 河北平原 地裂缝 地面沉降 分形理论 自组织性 |
Study on fractal features of ground fissures in the area of Hejian |
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| XU Jishan,MA Runyong,PENG Jianbing,YANG Xudong,MA Xuejun,AN Haibo.Study on fractal features of ground fissures in the area of Hejian[J].Journal of Natural Disasters,2012(3):177-183. |
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| Authors: | XU Jishan MA Runyong PENG Jianbing YANG Xudong MA Xuejun AN Haibo |
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| Institution: | 1(1.School of Geology Engineering and Geomatics,Chang’an University,Xi’an 710054,China;2.Key Laboratory of Western Mineral Resources and Geological Engineering of Ministry of Education,Xi’an 710054,China;3.Center for Hydrogeology and Environmental Geology,CGS,Baoding 071051,China) |
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| Abstract: | Based on fractal theory,the features of distribution fractal,controlled fractal and influence fractal of ground fissures in the area of Hejian were studied.The fractal dimensions of relevant physical quantities,such as ground fissures,active fractures underground water,ground subsidence etc.,were calculated using the software MATLAB.It is found that the ground fissure development has self-organization property and its dimension and change reflect the complexity of the ground fissures.The plane and profile fractal features of the ground fissures reflect the non-uniformity of pregnant crack stress field of the area in plane and lengthwise directions.The formation and development of ground fissures can be viewed as an adjustment of the fracture movement,whose fractal dimension has a certain range.Ground fissures closely associated with groundwater exploitation and ground subsidence. |
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| Keywords: | Hebei plain ground fissures ground subsidence fractal theory self-organization |
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