Author(s): Ivan Botev; Masayasu Itoh; Nobuyuki Tamai

Linked Author(s): Nobuyuki Tamai

Keywords: No Keywords

Abstract: Flood and heavy rainfall generate rapidly varied flow and sudden water releases that are at the origin of serious accidents in the engineering practice. This is particularly true when the flow meets with structures designed without consideration of potential flood hazards. To cope with the problem and prevent the tragic consequences of flood accidents, accident prediction and prevention studies rely mostly on numerical simulation. Seemingly, only numerical applications allow the time history of the accident to be anticipated in its complexity and diversity by using powerful numerical methods with various initial and boundary conditions. The present study was confronted with a particular case involving an artificial reservoir and a bulkhead that has to be secured against a sudden increase in water head. Given the magnitude of the water head increase that the bulkhead can support in excess to its design head, major importance was attached to the time history of the water level variation inside the reservoir and in front of the bulkhead. Consequently, the main objective of the study was defined as follows: simulate the time history and flow patterns of a hypothetical accident that leads to a water head increase of a given magnitude against the bulkhead.

DOI:

Year: 1993