In the area of the flood relief of the Karun-1 dam, cavitation effects occurred due to sediment accumulation.

In the flood relief area of the Karun-1 dam, cavitation effects caused by sedimentation led to noticeable changes in the exposed rock. These changes were observed as significant displacements of the rock mass and occasional rockfalls beneath the existing dam body. To improve the structural stability of the reservoir, active re-anchoring of the rock mass was necessary. To monitor the stress levels of the anchors, GLÖTZL force transducers were installed, and an automatic data collection system with alarm functionality was set up. Additionally, 3D fissure meters with electrical displacement transducers for crack monitoring were installed at two particularly critical positions and were also connected to the monitoring system.

Project: Instrumentation of the rock outcrop in the flood relief area
Construction period: 1965 – 1975
Project design: 2014 – 2016
Client: Aria Farnad Co. Power plant capacity: 2000
MW Special features: 188 m height
GLÖTZL Messtechnik: Anchor force transducers, 3D fissure meters with displacement transducers, and automatic data collection system