反倾层状岩质边坡倾倒变形时空演化特征研究

发布时间：2018-03-17 15:25

本文选题：反倾边坡　切入点：倾倒变形　出处：《长江科学院院报》2017年11期 　论文类型：期刊论文

【摘要】：为研究反倾层状岩质边坡倾倒变形时空演化特征,以硝洞槽岸坡为研究实例,首先在工程地质资料调查分析基础上对岸坡进行倾倒变形空间分区分析,然后基于地表位移监测资料分析岸坡不同区域倾倒变形随时域变化特征,最后对地表离散位移监测点采用距离反权重插值法得出岸坡倾倒变形位移演化云图,综合分析岸坡倾倒变形时空演化特征。研究结果表明:(1)岸坡前部以水平变形为主,后部以垂直变形为主,岸坡整体变形受控于前部水平变形;(2)岸坡中部条带区域变形控制着岸坡整体变形演化过程,岸坡整体变形滞后于岸坡中部变形,中部条带状变形区位移的增加会诱发后期岸坡整体位移的增加,推断该带状区为倾倒变形锁骨段。
[Abstract]:In order to study the temporal and spatial evolution characteristics of toppling deformation of inverse-dip bedded rock slope, taking the slope of No-hole trough as an example, based on the investigation and analysis of engineering geological data, the spatial zoning analysis of toppling deformation is carried out. Then, based on the monitoring data of surface displacement, the variation characteristics of toppling deformation in different areas of bank slope are analyzed. Finally, the evolution cloud map of slope toppling deformation displacement is obtained by using the distance inverse weight interpolation method for the discrete displacement monitoring points of the land surface. The temporal and spatial evolution characteristics of slope toppling deformation are analyzed synthetically. The results show that the front part of bank slope is mainly horizontal deformation, and the rear part is vertical deformation. The whole deformation of the bank slope is controlled by the front horizontal deformation.) the deformation of the belt in the middle part of the bank slope controls the evolution of the whole deformation of the bank slope, and the whole deformation of the bank slope lags behind the deformation of the middle part of the bank slope. The increase of the displacement of the middle strip will induce the increase of the whole displacement of the bank slope in the later stage, and it is inferred that the zone is the section of the clavicle deformed by the toppling deformation.
【作者单位】：中国地质大学(武汉)工程学院;新疆大学建筑工程学院;
【分类号】：TV223

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