Development of Three-dimensional Measurement System for Earth Retaining Wall for Excavating Work

Abstract

Monitoring of the deformation of earth retaining walls for excavating work is vital in order to protect the surrounding environment and to ensure the safety of structures during construction. Since it is difficult to evaluate the overall behavior with only partial measurement, it is expedient to introduce multipoint measurement. However, this method tends to be expensive. This paper introduces a system developed for evaluating and visualizing retaining walls as a three-dimensional curved surface. In order to confirm the effectiveness of the proposed system in actual monitoring, the system was applied to the on-site measurement. This paper also proposes a method of monitoring retaining walls by combining this system and simple inclinometers.