Artificial Headlands For Coastal Restoration
Author(s)
J.S. Mani
Abstract
Construction of a satellite harbour 15 km north of Chennai harbour has resulted
in erosion on the down drift coast as this stretch of coast experiences depleted
sediment supply during the southwest monsoon. Due to the geometry of the
coast, the coast receives a marginal quantum of sediment during the northeast
monsoon. To protect the coastline, new concept involving construction of
artificial headlands is suggested instead of adopting conventional coastal
protective structures, such as groynes, seawalls etc. This paper discusses the
numerical model studies carried out to design the configuration of the artificial
headlands to suit the prevailing wave and sediment transport characteristics. The
studies suggest an optimum length of projection of 14 m for the headlands and
an optimum spacing of 200 m between the headlands to deriv
Keywords
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