Belisama pumped-storage plant: A complex construction environment

Belisama Hydropower Corp intends to develop the 800 MW Belisama pumped-storage plant at Laguna de Bay, approximately 50 km southeast of Manila. This paper presents the regional framework, the investigations carried out, the results and the interpretation of the geological conditions for the project. The a main focus on the foundation conditions of the upper dam and reservoir, the geology underground conditions along the power waterways, the underground powerhouse and for the tailrace channel.