The 1 st International Applied Geological Congress, Department of Geology, Islamic Azad University - Mashad Branch, Iran, 26-28 April 2010 Methods of Coastal Conservation as viewed by Engineering Geology with examples from the Hormozgan Province. R. Zarei Sahamieh, Geology Department, Lorestan University
[email protected] P.Rezaee, Geology Department, Hormozgan University S.V. Shahrokhi, Geology Department, Islamic Azad University, Khoram Abad Branch Abstract Coast is an area between the sea and the land. The important types of coast are: primary and developed, sedimentary and structural, biological and glacial, sandy and stone. The most important items affecting on the coastal area are: waves, tides, winds, marine streams, manmade effects. Conservation of the coastal area is made with the aim of taking care, fixation and improvement of the situation of the area against destructive natural and artificial factors and is among important topics in the engineering geology. Methods of coastal conservation are divided in two groups: 1- structural, 2- non-structural. Conversation structures are usually in the following three groups: 1- structures perpendicular to the coast, 2- structures parallel to the coast, 3- Offshore structures. The most important conservation structures are: 1- gabions, 2- coastal walls, 3- groins, 4- revetment, 5- water breaker, 6- wedges. From the most important methods on non structural conservation, must be included to: 1- sandy fences, 2- artificial reduction, 3- plant cover and 4- management methods. The length of shorelines of the Hormozgan province extends to more than 800 km. In this scope, considering features such as types of coast, geotechnical properties of the shorelines, different development plans such as tourism, economic- social conditions, kinds and properties of waves, tides, winds and marine currents, kinds of coastal conservation methods are chosen, designed and constructed.