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Advances in the development of computer vision, miniature Micro-Electro-Mechanical Systems (MEMS) and Wireless Sensor Network (WSN) offer intriguing possibilities that can radically alter the paradigms underlying existing methods of condition assessment and monitoring of ageing civil engineering infrastructure. This paper describes some of the outcomes of the European Science Foundation project “Micro-Measurement and Monitoring System for Ageing Underground Infrastructures (Underground M3)”. The main aim of the project was to develop a system that uses a tiered approach to monitor the degree and rate of tunnel deterioration. The system comprises of (1) Tier 1: Micro-detection using advances in computer vision and (2) Tier 2: Micro-monitoring and communication using advances in MEMS and WSN. These potentially low-cost technologies will be able to reduce costs associated with end-of-life structures, which is essential to the viability of rehabilitation, repair and reuse. The paper describes the actual deployment and testing of these innovative monitoring tools in tunnels of London Underground, Prague Metro and Barcelona Metro.1 INTRODUCTION century ago and there is widespread evidence of deterioration. Old tunnels are in particular vulner-Deterioration of ageing civil engineering infra-able to adjacent ground disturbance, for instance structure and the associated increase in the pro-piling and deep excavations. portion of budgets spent on maintenance present At the moment, network wide monitoring is significant challenges to our society. Dense spa-prohibitively expensive and very limited in terms tial and temporal …
CRC Press/Balkema
Publication date: 
5 Sep 2012

K Soga, A Ledesma, A Roncaglia, I Vanicek

Biblio References: 
Pages: 197-204
Geotechnical Aspects of Underground Construction in Soft Ground