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Study on evolutionary characteristics of toppling deformation of reverse-dip layered rock slope based on surface displacement monitoring data

机译：基于地表位移监测数据的反倾层状岩石边坡倾覆变形演​​化特征研究

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In this paper, a comprehensive analysis of spatiotemporal characteristics of reverse-dip slope toppling is conducted by taking the Xiaodongcao slope as an example. First, a spatial partitioning analysis of toppling deformation is performed based on the field reconnaissance and interpretation of engineering geological data. Then, the variations of toppling deformation in time domain are analyzed for different areas of the slope with monitored data of surface displacement. Finally, the isochrones of toppling displacement evolution are constructed by using inverse distance weighted interpolation of surface monitoring data at discrete locations. The results presented in the study have shown that: (1) the displacement at the rear of the slope is dominated by vertical deformation, whereas the horizontal deformation is predominant at the slope front which also controls the overall deformation of the bank slope; (2) the overall evolution of slope deformation is dominated by the strip area at the center of the slope. In particular, the overall deformation of the slope lags behind the central region, and the displacement in this strip area could trigger an overall displacement of the bank slope. It is thus inferred that the stripe area serves as the locked segment for the toppling deformation of the slope.
机译：本文以小东草坡为例，对倒倾坡的时空特征进行了综合分析。首先，基于野外勘察和工程地质数据的解释，对倾覆变形进行了空间划分分析。然后，利用监测到的表面位移数据，分析了坡度不同区域时倾倒变形的时变变化。最后，通过使用离散位置的地面监测数据的反距离加权插值，构造了倾覆位移演化的等时线。研究结果表明：（1）边坡后方的位移以竖向变形为主，而边坡前部以水平变形为主，这也控制了岸坡的整体变形。 （2）边坡变形的整体演化主要由边坡中心的带状区域决定。特别地，斜坡的整体变形滞后于中心区域，并且在该带状区域中的位移可能触发堤岸斜坡的整体位移。因此，可以推断出，条形区域用作斜坡倾斜变形的锁定段。

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