Rock-Fill Cofferdam Crest Settlement Behavior Analysis Through Geodetic Monitoring Data

Abstract

Construction of rock-fill dams requires extensive preparatory work. The rationality of construction, ecological aspects, and flood safety must be considered. Potential catastrophic consequences of failure or collapse classify dam structures as high-risk objects which are built according to all safety regulations, and their conditions must be monitored. In this study, we focus on the settlement behavior of a cofferdam crest by analyzing the obtained monitoring data with a non-exponential modified sigmoid function, developed at the Faculty of Natural Sciences and Engineering (FNSE model). Furthermore, monitoring adjustment is introduced, and future settlement is estimated based on verification with actual values.