![]() ![]() Il est conclu que la plupart des abris naturels étaient utilisés à l’époque romaine, mais que certains ports majeurs ont été aménagés dans des zones sans aucun abri naturel pour des raisons stratégiques ou économiques. Quelques aspects géomorphologiques des ports maritimes sont passés en revue également. Les brise-lames verticaux et les quais, les grands blocs de béton, les pilae et les brise-lames à arches, les rideaux de palplanches, les batardeaux, les brise-lames à talus et les endiguements fluviaux sont décrits. Les plus anciennes structures portuaires sont brièvement présentées. L’objectif est de comparer les structures portuaires antiques et modernes dans l’espoir que l’époque moderne aide à mieux comprendre la période antique, avec une attention particulière portée aux brise-lames et aux quais. The combination of concrete and steel enables modern engineers to build higher, deeper and larger than Roman engineers could dream of, but some modern structures may not last as long as some Roman structures, especially in salt water … when large maritime structures started to be built again. Most of today’s concepts for maritime structures were already existing in Roman times and it seems that little progress was made until the 18th c. It is concluded that most natural shelters were used in Roman times, but some major ports have been built in places without any natural shelter, for strategic or economic reasons. A few geomorphological aspects of coastal harbours are also reviewed. Vertical breakwaters and quays, large concrete blocks, pilae and arched breakwaters, piling walls, cofferdams, rubble mound breakwaters and river training walls are described in the ancient and in the modern world. The oldest known port structures are briefly presented. ![]() This paper aims to compare ancient and modern port structures hoping that the modern can help us in a better understanding of the ancient, w ith special focus on breakwaters and quay walls. ![]()
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