VARIATION OF TOPOGRAPHY OF SEA-BED CAUSED BY THE CONSTRUCTION OF BREAKWATERS

Shoji Sato, Isao Irie

Abstract


In Japan, many breakwaters or jetties have been constructed in the sandy beach from the past decade for new ports to cope with the development of industry It is needless to say that the construction and prolongation of breakwaters or jetties cause the change of bottom topography in their vicinity, but many points remain indistinct on this change of bottom-topography In this paper, some general properties on the change of the topography of sea-bed caused by the construction of breakwaters are discussed on the basis of the hydraulic sounding maps of several ports and the results of model tests The terminology used in this paper is given in Figure 1.

Keywords


topography variation; breakwater construction; sea bed topography

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