Innovative Monitoring Devices for an Integral Observation of Thermal Stress Behaviour of Large RCC Dams
Some aspects of the thermal stress and thermally induced cracking behaviour of large RCC dams could not be investigated in-situ yet, due to the unavailability of suitable monitoring systems. This particularly relates to the not yet completely investigated formation of longitudinal mass cracking and the unfailing detection of transverse cracks. An innovative, integral monitoring system for the observation of detailed thermal stress behaviour of large RCC dams is presented in this paper. Such instrumentation system consists of Distributed Fibre Optic Temperature Measurements (DFOT) for high information temperature and temperature gradients monitoring as well as in-situ thermal properties determination, suitable stressmeters for the realistic stress monitoring of concrete during its hardening and Distributed Fibre Optic Strain and Temperature Measurements (DFOST) to sense cracks in an RCC mass.
thermal stress thermal cracking instrumentation monitoring DTS DTSS BOTDR
Marco Conrad Roland Hoepffner Markus Aufleger
Colenco Power Engineering Ltd., Hydropower Plants, CH-5405 Baden, Switzerland Technische Universitaet Muenchen, Institute of Hydraulic and Water Resources Engineering, D-80290 Mu University of Innsbruck, Unit of Hydraulic Engineering, A-6020 Innsbruck, Austria
国际会议
第五届碾压混凝土坝国际研讨会(The Fifth International Symposium on Roller Compacted Concrete(RCC))
贵阳
英文
777-784
2007-11-02（万方平台首次上网日期，不代表论文的发表时间）