Monitoring of Slopes and Retaining Structures Related to Infrastructures Case Study Hydroelectric Power Plant Jiu River Livezeni Romania

The Paper presents the results, interpretation and intervention measures obtained from inclinometer monitoring performed for a retaining structure built for the accomplishment of a hydrotechnical structure on Jiu River. The accomplishment of the hydrotechnical structure on Jiu River required a retaining structure of approximately 100m length adjacent to the slope which is crossed by the railway line Tg. Jiu - Simeria. The retaining structure made of 1500mm piles also keeps in safe condition the adjacent E79 Road section.

Monitoring the behavior of the support structure and of the slope, the layout and the depth of the monitoring equipments, is the result of a complex analysis of the site, of the neighborhoods and the risks to be monitored and managed. This paper presents the “peak of the iceberg” related to site monitoring, being the result of several steps necessary to be performed in order to accomplish the monitoring program: establishing geotechnical or structural issues that require resolution / tracking, establishing the concept of monitoring systems and monitoring plan, establishment of: monitored points, equipment, frequency and type of data acquisition, processing methods, interpretation and issue resolutions for the data.

The results of the geotechnical monitoring and topographical survey compared with the design assumptions can lead to intervention measures to ensure and restore structural stability for the construction during execution stage or exploitation stage.