Behavioral Study of Bajulmati Dam Deformation Through Dam History Database-based Assessment

Abstract

Dam will experience pressure from its own load up to the effect of loading reservoir water. As a result of this pressure force, the dam body will be deformed. The behavior of dam deformation needs to be monitored to know the vertical and horizontal deformation that occurs. This paper discusses the deformation behavior of bajulmati dam during the construction stage, first filling, and post-construction. The purpose of this analysis is to determine "normal" deformation behavior so that case studies showing "abnormal" deformation can be identified early and can then be further analyzed. Evaluation results of Bajulmati Dam deformation behavior based on the acceptance criteria from a similar dam history database showed that most instruments meet the criteria of deformation acceptance so that it is considered normal. Only a small percentage do not meet the acceptance criteria because the value is outside of the requirements. These results may be a concern and initial recommendation for further analysis of abnormal deformation behaviors occurring.