Construction and Post-Construction Deformations of an MSE Wall using Terrestrial Laser Scanning

ABSTRACT: Terrestrial Laser Scanning (TLS) is a surveying tool that can create a 3D point cloud by shooting a web/mesh of laser points in different station locations in a 360° range of its surroundings. These scans can be registered to align itself from like surfaces, points, or objects and can be accompanied with pictures to create context and colour to the surfaces. The use of this technology can range from measuring dimensions of existing structure conditions for renovations, deformation monitoring of natural slopes, and risk management for rockslides on mountain sides. A laser scanner was used to measure settlements from the Mechanically-Stabilized Earth (MSE) wall abutments. The results were compared with the readings from a total station to determine its reliability and compatibility for applications in civil construction applications.