ALOHA: an innovative system for surveillance of hydraulic structures

Abstract

Abstract. Developers and operators of a full range of hydroelectricity structures (500 kms of dykes, 19 in-stream structures and 12 high-head installations) for over 100 years, CNR and SHEM are required to guarantee a constant monitoring of their infrastructure to ensure hydraulic safety, meet their regulatory requirements and to be prepared to new challenges: improved efficiencies, optimised monitoring of high risks areas and information sharing between the different operators.To reach a better surveillance and improve risk management, CNR and SHEM called upon the Advitam Group to set up, in less than 12 months, the innovative software solution 'ALOHA' for the inspections and monitoring of their structures to a better knowledge of risk.This monitoring is ensured by over 15,000 sensors, allowing an analysis of historic data spread over 30 years.ALOHA, a development based on the ScanPrint® web based software, allows the full range of operators to collect, visualise, analyse and edit all of the auscultation and monitoring data in an integrated platform. To respond to the specific needs of CNR and SHEM, innovative modules were developed for both in-office work and mobile tools. This article will detail the functional requirements of the CNR and SHEM, the solutions proposed by Advitam with the ALOHA system and the integration of the solution in the risk management. 35(6(17$7,21 2) 7+( &217(;7In the context of the advent of new technologies, in order to ensure the longevity of structures, and driven by exacting "safety" regulations, the surveillance tools for hydraulic structures need to undergo a transformation. The ALOHA project fits neatly in this scope, and within the ambition of the Engie Group.