Engineering Geology and its Treatment in Indonesia, with Special Attention to Development of Dam and Groundwater as Water Resources

Abstract

The geological structure in Indonesia is characterized by the mobile belt composed of the arc-trench systems like as that in Japan. Main characteristics of the engineering geology will be heavy weathering of mother rock due to tropical climate, covering of volcanic deposits, and widely distributing limestone. These characteristics are regarded as factors in a features of rock, occurrence of geological disasters, and difference of land-use. We show the issues of engineering geology as well as the geotechnical countermeasure at project sites through our experience for the development of water resources.