The Role of Geotechnical Investigations in Enhancing the Safety and Sustainability of Hydropower Projects

Abstract

Aim: To examine the role of geotechnical investigations in enhancing the safety and sustainability of hydropower projects. Objectives: The objectives are to examine the concepts, relevance and procedures of geotechnical investigations in hydropower projects. Discussion: Geotechnical investigations are imperative for safe and sustainable hydropower projects prior the execution. The general required tasks for  any geotechnical investigation were identified to include: (1) groundwater status and soil profile determination within the planned site, (2) recommendations for various building structures construction, foundation design and underground utilities, (3) recommendations for constructing parking locations and driveways and (4) recommendations for surface drainage and site preparation. The major types of geotechnical report were found to be geotechnical design report and geotechnical site investigation report. Also, reconnaissance, preliminary site investigation, detailed site investigation and site investigation report and recommendations are the stages involved in a geotechnical site investigation. Borings for exploration and in-situ tests are the identified methods of geotechnical site investigation. Conclusion: In conclusion, geotechnical investigations are relevant for safe and sustainable hydropower projects.