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首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >Terrestrial laser scanning of rock slope instabilities
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Terrestrial laser scanning of rock slope instabilities

机译：岩石边坡不稳定性的地面激光扫描

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摘要

This manuscript presents a review on the application of a remote sensing technique (terrestrial laser scanning, TLS) to a well-known topic (rock slope characterization and monitoring). Although the number of publications on the use of TLS in rock slope studies has rapidly increased in the last 5-10 years, little effort has been made to review the key developments, establish a code of best practice and unify future research approaches. The acquisition of dense 3D terrain information with high accuracy, high data acquisition speed and increasingly efficient post-processing workflows is helping to better quantify key parameters of rock slope instabilities across spatial and temporal scales ranging from cubic decimetres to millions of cubic metres and from hours to years, respectively. Key insights into the use of TLS in rock slope investigations include: (a) the capability of remotely obtaining the orientation of slope discontinuities, which constitutes a great step forward in rock mechanics; (b) the possibility to monitor rock slopes which allows not only the accurate quantification of rockfall rates across wide areas but also the spatio-temporal modelling of rock slope deformation with an unprecedented level of detail. Studying rock slopes using TLS presents a series of key challenges, from accounting for the fractal character of rock surface to detecting the precursory deformation that may help in the future prediction of rock failures. Further investigation on the development of new algorithms for point cloud filtering, segmentation, feature extraction, deformation tracking and change detection will significantly improve our understanding on how rock slopes behave and evolve. Perspectives include the use of new 3D sensing devices and the adaptation of techniques and methods recently developed in other disciplines as robotics and 3D computer-vision to rock slope instabilities research.
机译：该手稿介绍了将遥感技术（地面激光扫描，TLS）应用于一个著名主题（岩石坡度表征和监测）的综述。尽管在过去5到10年中，有关在岩质边坡研究中使用TLS的出版物数量迅速增加，但几乎没有做出任何努力来审查主要进展，建立最佳实践准则并统一未来的研究方法。以高精度，高数据采集速度和日益高效的后处理工作流程来采集密集的3D地形信息，有助于更好地量化在从立方分米到数百万立方米不等的时空范围内的岩质边坡不稳定性的关键参数到几年。 TLS在岩石边坡研究中使用的主要见解包括：（a）远程获得边坡不连续性方向的能力，这是岩石力学向前迈出的一大步; （b）监测岩质边坡的可能性，这不仅可以精确量化宽广区域的落石率，而且可以空前详细地对岩质边坡变形进行时空建模。使用TLS研究岩石边坡提出了一系列关键挑战，从考虑岩石表面的分形特征到检测先兆变形，这可能有助于将来对岩石破坏的预测。对用于点云过滤，分割，特征提取，变形跟踪和变化检测的新算法的开发的进一步研究将极大地增进我们对岩石坡度行为和演化的理解。前景包括使用新的3D传感设备以及将在其他学科（如机器人技术和3D计算机视觉）中最近开发的技术和方法应用于岩石边坡不稳定性研究。

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