Technical & Engineering Blog
Guy Cleveland CEng FICE FIMMM
Head of Engineering
Drawing on decades of experience in the water industry, Guy Cleveland shares expert technical insights into the world of Ductile Iron pipelines. From design principles and installation best practices to industry standards and engineering challenges, Guy’s blog provides practical guidance and professional knowledge for engineers, contractors, designers, and anyone involved in the planning, installation, and maintenance of water infrastructure.
About
Guy Cleveland is a Chartered Civil Engineer (CEng) and Fellow of both the Institution of Civil Engineers (FICE) and the Institute of Materials, Minerals & Mining (FIMMM), with over 15 years of experience in the design, asset management, and rehabilitation of water industry pipeline systems.
He leads the engineering function at Electrosteel UK, working closely with clients, consultants, and contractors to deliver high-value infrastructure solutions. His experience spans consultancy, manufacturing, and client-side roles, including senior positions at Thames Water, where he helped shape major infrastructure programmes and supported long-term investment planning.
Guy specialises in water and wastewater pipelines, with particular expertise in pipeline design, asset risk management, failure analysis, and rehabilitation. Alongside his project delivery experience, he plays an active role in shaping industry best practice through leadership and involvement in the development of British Standards, Water UK specifications, and industry guidance documents.
Restrained Joint Systems Series:
Moving Beyond the Guidance
Thrust restraint is a fundamental requirement of pressurised pipeline design. Restrained joint systems offer a reliable alternative to traditional concrete thrust blocks. Whilst the principles of how thrust blocks and restrained systems work are similar, misunderstanding of the mechanics of how restrained joints work can give rise to issues on site.
Moving Beyond the GuidanceElectrosteel Range Overview
The second article in the series is out now, this time looking at the specific restrained joint systems in the Electrosteel range, how each one works mechanically, and the performance envelope of each. The three systems covered are quite different in how they achieve restraint from anchor gaskets that can be used with standard push fit pipe, through to the Electrolock system with its double chamber socket and locking segments. Understanding those differences matters when it comes to selecting the right system for a given application. The article is written around Electrosteel products, but the underlying principles are broadly transferable. If you're working with another manufacturer's system, the same questions about joint mechanics, deflection limits, and pressure ratings apply. Regardless of manufacturer please ensure you are referring to the correct and up to date technical literature.
Electrosteel Range OverviewTunnelled Applications
Part three of the series is out now, and this one takes a slight change of direction, looking at the case for using restrained joint ductile iron in tunnelled applications. Steel feels like the default choice for tunnelled pipelines, and often the right one. But ductile iron doesn't always get a fair hearing in the evaluation. The article looks at where ductile iron stacks up well, particularly around jointing in confined spaces, where avoiding hot works and weld inspection can offer real programme and cost benefits, and where the comparison is more nuanced. It aims to help engineers make a conscious material selection rather than defaulting to steel without considering the alternatives.
Tunnelled ApplicationsMoving Beyond the Guidance
The fourth, and final, article in the series is out now. This one looks at overlapping restrained lengths at closely spaced fittings, and how to resolve thrust forces for combined configurations before determining the restraint requirements. This is not addressed explicitly within CIRIA C816, but the philosophy outlined with ISO21052 can be augmented into the C816 approach. The article sets out a practical approach for combined configurations, building on the joint mechanics covered in the first article in the series.
Moving Beyond the Guidance