Landslide risk investigations in environmental impact assessment

Abstract

Geology and landslide risk investigations are very important segments for the environmental impact assessment (EIA) study for any development project. Present study is focused to conduct the geology and landslide risks investigations for some of the mini hydropower projects in central highlands of Sri Lanka. The evaluation of general aspects of in-situ ground stability of the proposed location of the weir site, fore bay tank, penstock line and the power house have been investigated. The proposed locations to construct mini hydropower projects where moderate level of geological hazards and landslide risk exists can be recommended only with the applications of location specific guidelines and precautionary measures for the prevention of future geologic hazards and landslide risk. It is advised to adhere to some recommendations for the sound construction and operation of the proposed mini hydropower projects. © Springer-Verlag Berlin Heidelberg 2013.