Author(s): N. Le Grelle; G. Bertrand; S. Soares Frazao; J. M. Hiver; Y. Zech
Linked Author(s):
Keywords: Safety; Flood; Breaking
Abstract: In many countries, hydraulic works become larger and larger. The volume of water in canals is also increasing and some of their reaches are built above the ground level. The breaking of a work along these reaches can endanger people living downstream. Predictions of such a flow are essential to avoid human and material damages. Such a study has been carried out for the Walloon Ministry of Equipment and Transport (Belgium) for the new reach of the canal du Centre in Belgium. Two major works were built on this reach: the new ship lift of Strepy (73.15 m high) and a 500-m long canal-bridge at Houdeng. A safety gate was also built in this reach to limit the volume of water lost in case of breaking. The first part of this paper explains the study of the flows upstream of the collapse point, including the flow at the safety gate. The second part presents the study downstream, including the elaboration of a digital terrain modelling. A GIS system is used both to build the DTM and to represent the results.
Year: 2003