Asset Management of Urban Drainage Systems: If anything exciting happens, we've done it wrong!
Asset management issues are and will always be key concerns for many stakeholders in the water sector. Despite this, there is still a lack of awareness and clear guidance on the topic. There has been some focus on the management of drainage pipes, but more effort needs to be dedicated to examining the various regulations, practices, and research within this discipline. It's paramount to consider the long-term management of urban drainage assets, given the role they play in ensuring the wellbeing of our communities.
Asset Management of Urban Drainage Systems is the first comprehensive handbook that deals with the asset management of infrastructure dedicated to both sewage and stormwater, including blue-green infrastructure. It gives an insight into the theoretical background of asset management itself and showcases regulations and legislation influencing it. The methods used to investigate the condition of assets, and how they can be modelled and represented while accounting for the associated limitations, are also presented. The book describes how the discipline can move from a purely condition-based approach to a service-based one using risk-management strategies, seen in the broader context of decision-making. Data management and techniques for the rehabilitation of urban drainage assets are also explored.
From technicians who want to know more about the tools and methods, to researchers and students who want a broad overview, to professionals who are tasked with developing short, medium, and long-term asset management strategies, this book provides important content for a wide audience.
ISBN: 9781789063042 (paperback)
ISBN: 9781789063059 (eBook)
ISBN: 9781789063066 (ePub)
Chapter 9: Operation, maintenance and rehabilitation techniques
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Published:June 2024
Mahdi Bahrami, Floris Boogaard, Bert Bosseler, Frédéric Cherqui, Bert van Duin, Fabian Funke, Marcel Goerke, Francine Kelly-Hooper, Manfred Kleidorfer, Magnus Moglia, Tone Merete Muthanna, Martin Oberascher, Franz Tscheikner-Gratl, Martijn van der Valk, Ferry van der Valk, 2024. "Operation, maintenance and rehabilitation techniques", Asset Management of Urban Drainage Systems: If anything exciting happens, we've done it wrong!, Frédéric Cherqui, François Clemens-Meyer, Franz Tscheikner-Gratl, Bert van Duin
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Abstract
Urban drainage operation, management and rehabilitation can be divided into two distinct segments: traditional grey infrastructures (i.e. pipes and associated components) and green infrastructures. For piped systems this boils down to maintaining the operational safety, stability and tightness of the sewers and special structures. However, this chapter provides an overview on both realms and highlights that, while there is a lot of standardization for grey infrastructures, the knowledge on green ones is much more fractured. They are often composed of both engineered and natural elements such as pipes, flow control systems, vegetation, micro-organisms in the soil or growing media, and also deliver a broad range of beneficial services to our communities and their inhabitants. Existing terminology for pipe networks is adapted by defining a similar distinction for green infrastructures based on the severity of the necessary actions. There will be no focus on other special structures and machinery. Adopting these distinctions, this chapter consists of three parts: (1) pipe network operation and maintenance (O&M), (2) structural rehabilitation of pipe networks and the connected manholes and (3) green infrastructure rehabilitation including O&M focusing on some examples. Consequently, this chapter can be used as guidance on available technologies, existing guidelines and research gaps.