Landslide Monitoring and Assessment for Highway Retainingwall: The Case Study of Taşkent(turkey) Landslide

Abstract

<p><strong>Abstract.</strong> Landslide monitoring and assessment of the highways retaining walls are a crucial task. Because there exist a risk and danger with regard to the movement of the wall to the highway by landslide force that may spread further. To evaluate the changing, movements have to be monitored. For this reason, we practised mobile LiDAR surveys on the landslide effected wall on the highway. The usage of the mobile LiDAR systems have significantly increased in recent years, especially for road management. Currently, mobile LiDAR technology is capable of measuring the earth surface with high precision and density as a 3D point clouds. As stated in this study, the point cloud data processing have been analysed further and the wall surface points fitted to a plane object for monitoring of the landslide effects. This study focuses on different plane fitting algorithms which represents the retaining wall, a performance assessment and evaluation of the deformation between two plane models. The analysis indicates that the uncertainty of the measurements between the two epochs on stable areas survey was within ±2 cm. According to the experimental results, the proposed methods performed promising results that can be used for monitoring of retaining walls for fast processing and assessment.</p>

Integrated Geomatics Surveying and Data Management in the Investigation of Slope and Fluvial Dynamics

“…GNSS has been effectively applied for the monitoring of slopes dynamics [92][93][94][95] to provide information on the morphometry, locations, and displacements [96]. Access to the area is required, and a proper materialization of interest points is mandatory for monitoring or integrating purposes; any obstacle to the sight of satellites make this technique unworkable [97].…”

Multitemporal Analysis of Slow-Moving Landslides and Channel Dynamics through Integrated Remote Sensing and In Situ Techniques

“…Real-time positioning allows final accuracy at the cm level, whereas accuracy to the level of a few mm can be obtained with static methods based on relative positioning. GNSS has been effectively applied for the monitoring of slope dynamics [48][49][50] to provide information on morphometry, locations, and displacements [51]. Measurements from conventional monitoring techniques (e.g., inclinometers, extensometers, and topographic and GNSS surveys) are normally restricted to a small number of ground points with respect to the surface of the investigated area [52].…”