Mark Morris

• PhD
• Director at Samui France sarl

La prédiction de l’érosion par surverse des digues de protection contre les crues et des barrages en remblai constitue l’une des difficultés majeures dans l’analyse de la sûreté de ces ouvrages. Bien qu’identifié comme étant le mécanisme de rupture dominant de près de la moitié des ruptures de digues fluviales, les méthodes et outils dont disposent...

As overflow and overtopping erosion pose significant threats to embankment dams and levees, predicting flow propagation in protected areas is vital for effective flood risk management. In this paper, simplified breach growth laws were integrated with the two-dimensional (2D) shallow water equations solver TELEMAC-2D. We applied this model for simul...

Hydropower has a long tradition in Europe and contributed significantly during the last century to industrial development and welfare in most of the countries in Europe. The ambitious plan for an energy transition in Europe now seeks to achieve a low-carbon climate-resilient future in a safe and cost-effective way, serving as an example worldwide....

Une plateforme européenne de technologie et d'innovation (« ETIP ») est une communauté actuellement financée par la Commission Européenne, dont la première activité est de définir les priorités en matière de R&I pour son secteur. La seconde activité est de surmonter les obstacles au déploiement de ses innovations. Les différentes ETIP ont pour miss...

Built from the Hydropower Europe Forum, ETIP HYDROPOWER will help to ensure that hydropower can play the vital role of a catalyst and enabler in the transition to a clean and safe energy system in Europe. Hydropower has proven to be a reliable supplier in the energy crisis. Is important contribution to secure storage with the lowest indirect CO2 em...

The new EU project ETIP Hydropower (September 2022 – August 2025) will closely link the EERA Joint Programme Hydropower to the new European Technology and Innovation Platform (ETIP) for hydropower. It succeeds the HYDROPOWER EUROPE project (2018–2022) which created a forum for more than 600 stakeholders representing all sectors.

Breaching caused by overflow has been widely studied during the past decades, using mostly uniform material throughout different granulometric spectrum. From these studies, computer models, available to forecast the failure hydrographs of embankment dams and levees, have arisen. However, one of the main issues is the prediction of the macro erosion...

Within the framework of the EU Horizon 2020 project, the Hydropower Europe Forum has prepared a Research and Innovation Agenda and a Strategic Industry Roadmap for the hydropower sector. These two outcomes are presented in this paper, including the main results of the prioritization assessment process. The paper also shows which research themes, to...

The European Union has the ambition to be the first carbonneutral continent by 2050. To fulfil this objective and integrate into the grid the large amount of power from solar and wind, Europe can rely upon the high storage and flexible capacity of hydropower. Thus, new reservoirs and innovative use of current reservoirs will be needed to provide an...

The European Union has the ambition to be the first carbonneutral continent by 2050. To fulfil this objective and integrate into the grid the large amount of power from solar and wind, Europe can rely upon the high storage and flexible capacity of hydropower. Thus, new reservoirs and innovative use of current reservoirs will be needed to provide an...

A new EU initiative, Hydropower-Europe, is reported here. This work, soon to be launched, will provide a framework for the hydropower sector in Europe to define a research and innovation agenda, and technology roadmap. The initiative is expected to help position European hydropower within the international market, and support development of the sec...

HYDROPOWER-EUROPE is a project selected by European Commission after the call H2020 LC-SC3-CC-4-2018, whose the scope is "bringing together stakeholders of the hydropower sector in a forum" to develop a roadmap of research and innovation for new hydropower technologies and innovative mitigation measures. The International Commission on Large Dams (...

The failure of dams and embankments can have catastrophic impacts on people, properties and environment. Therefore, dam and embankment breach modelling is a fundamental stage of any flood risk assessment. EMBREA-Web has been developed to help researchers and practitioners undertake this task more easily via an online interface that is built upon th...

Earthen dams and flood embankments are critical infrastructure that play a vital role for many purposes. However, the potential for failure by breaching carries severe consequences to the people and the assets they serve. It is therefore important to understand the potential failure processes and impacts that can be associated with such failures. A...

This paper describes the stock of levees and reservoir embankments in the United Kingdom, current practice in managing the risk of failure due to overflow, and research needs to improve their resilience to failure. It is a summary of two presentations made to the International workshop on overflow of embankment and concrete dams at Aussois in Decem...

Breach prediction models have typically focused on the prediction of processes through homogeneous structures (levees and dams), with some allowing for the effects of surface protection layers (such as grass or rock) and in some cases, the effects of simple core structures. Even with these simple models, it can be seen that the effect of surface la...

The prediction of how an embankment dam or flood levee may erode, and ultimately breach, is fundamental to identifying and managing flood risk in partnership with cost effective asset management. Flood risk analyses, built upon levee and dam breach predictions, may underpin emergency action plans, critical infrastructure performance and land use pl...

Effective flood risk management requires complementary science, policy and practice. Ensuring that these three communities communicate, interact, and follow common goals and align strategies requires integration of actions across their different agendas. This poses a complex challenge which has been the subject of various initiatives in recent year...

Since the House of Lords Select Committee review of dam safety in 1982 there have been various attempts to introduce a more quantified approach to the assessment of dams and reservoirs, including the CIRIA guide to risk assessment methods for UK reservoirs and the Interim Guide to Quantitative risk assessment for UK reservoirs. Unfortunately none o...

The HR BREACH model is a physically based numerical model for the simulation of breach initiation and formation through embankment dams, dykes, and flood embankments. The model is used for the analysis of homogenous as well as composite/zoned embankments. Simulation can also include the effect of surface protection such as grass or rock blocks. Two...

Chapter 8 presents morphologic, hydraulic and geotechnical tools to assess performance of a levee section.

Chapter 8 presents morphologic, hydraulic and geotechnical tools to assess performance of a levee section.

A large number of embankment structures, including dams, levees, dikes, and barriers, have been built by humans or formed naturally along rivers, lakes, and coastal lines around the world. Most of these structures play very important roles in flood defense, although many are also used for water supply, power generation, transportation, and sediment...

The FloodProBE project started as a FP7 research project in November 2009.Floods, together with wind related storms, are considered the major natural hazard in the EU in terms of risk to people and assets. In order to adapt urban areas (in river and coastal zones) to prevent flooding or to be better prepared for floods, decision makers need to dete...

Little of the European coast line or land area has escaped human influence, with increasing pressures over generations of settlement, agriculture, industry and commerce. The pressures include water and flood management activities which control the extent and frequency of floods and the drainage of water from the land. Internationally, policies and...

Most models of the flow over an embankment or through a breach treat the flow as that over a broad-crested weir. This may be appropriate when the flow width is large compared with the depth, and the streamlines of the flow in the reservoir towards the embankment or breach nearly normal to the crest. However, evidence from laboratory and large scale...

A number of research studies have dealt with the possible use of the web environment as a platform for provision of hydroinformatics tools. One successful approach for instructing model usage through the web is by means of case studies or scenarios, each scenario addressing a specific aspect of the model application. When provided with freedom to c...

Flood risk assessment and management often requires the prediction of potential breaching of a flood defence embankment or dam in order to either assess potential impacts or provide information to assist emergency planning, evacuation, repair strategies and improve alternative future design strategies. There are many different aspects of the overal...

In order to undertake a flood risk analysis, the performance of different flood defence structures under varying load conditions needs to be represented. This paper reports on work undertaken through the FLOODsite Project (Task 4) in bringing together available information on failure modes for a number of representative flood defence structure type...

The future management of flood risk will not come from a single technical solution or policy but from a range of responses which are tuned to the specific circumstances at a local or regional scale, taking account of national governance structures and public attitudes towards flood risks. This diversity of approach is recognised by the embodiment o...

The HR BREACH model was first developed between 1998-2001 to meet the need for a practical model that provided a reliable estimate of breach growth through flood embankments or embankment dams, in support of dambreak analyses and flood risk assessments. The European IMPACT Project (2001-2004) subsequently provided valuable field and laboratory data...

FLOODsite is the largest ever EC research project on flood risk management, with an EC grant to the budget of nearly €10 Million complemented by supporting national funds. The project, which started in 2004, is scheduled to complete in February 2009, and has involved over 200 researchers from 13 countries including many of Europe's leading institut...

The Dam Safety Interest Group (DSIG) of CEA Technologies, Inc. (CEATI) is an international group of dam owners that pursues collaborative research on a wide range of topics. Since 2004 the DSIG has been working to facilitate the development and deployment of a physically-based embankment dam breach model. The group, with assistance from non-CEATI m...

The IMPACT project addressed the assessment and reduction of risks from extreme flooding caused by natural events or the failure of dams and flood defence structures. It was funded by the European Commission (EC) and started in November 2001 and lasted for 3 years. The project framework was divided into five work packages. Three of these addressed...

This report describes failure mechanisms for generic flood defence structures or assets. The objective of this report is to provide a definitive listing of reliability equations for failure mechanisms of flood defence assets for use in flow system modelling. Three principal load types are considered: A. Water level difference across a structure B....

In order to undertake a flood risk analysis, the performance of different flood defence struc-tures under varying load conditions needs to be represented. This paper reports on work undertaken through the FLOODsite Project (Task 4) in bringing together available information on failure modes for a number of repre-sentative flood defence structure ty...

Embankments are constructed for the retention of water for irrigation and supply, and for protecting people, land, and property from flooding. Failure of any embankment poses risks to people and property nearby and the services provided by the embankment. The review of breaching of embankments in this paper identifies significant issues in the para...

The Woolston Weir and River Mersey Diversion project involved provision of a new hydraulic control structure, diversion channel and ancillary works on the River Mersey, near Warrington, for the Manchester Ship Canal Company. The weir is a substantial structure, nearly 80 m wide. It includes the largest low-head, air-regulated siphon weir to date in...

The Woolston Weir and River Mersey Diversion project involved provision of a new hydraulic control structure, diversion channel and ancillary works on the River Mersey, near Warrington, for the Manchester Ship Canal Company. The weir is a substantial structure, nearly 80 m wide. It includes the largest low-head, air-regulated siphon weir to date in...

A research programme known as IMPACT, which aims to improve knowledge in areas affecting the reliability of predicting extreme flood conditions, is discussed. IMPACT uses a variety of approaches and links fieldwork, laboratory physical modelling, desk analysis and computational modelling. IMPACT involves nine main collaborators from eight countries...

This paper describes research in the UK on the CIRIA 1 Project RP568 (Reservoirs and Risk) to develop a risk assessment methodology for the safety assessment of UK reservoirs. Amongst other constraints, it was required that the methodology developed be relatively simple, easy to implement and would fit within the current UK approach to reservoir sa...

This paper presents a new methodology to simulate that breaching of non-cohesive, homogeneous embankments to help in assessing the hazards introduced when an embankment fails. The new methodology is based on the principles of hydraulics, sediment transport and soil mechanics. To take into consideration the uncertainties of soil properties a probabi...