巴拉水电站主要工程地质问题及对策措施研究OA

The Bala Hydropower Project is a key project under China's Western Development Strategy.The en-gineering area features complex geological conditions,and the construction process faced major geotechnical challenges,including:stability of strongly unloaded rock slopes in the headwork section,evaluation of the influ-ence of faults on the plinth foundation in the riverbed section,selection of treatment schemes for collapse at the inlet of the super-large cross-section shallow-buried spillway tunnel,research on foundation treatment for the flip bucket of the high-discharge spillway tunnel in thick overburden layers,and treatment and prevention of collapse in soft rock sections of the water conveyance system.Based on pre-construction investigations and re-search achievements from the construction phase,this paper systematically reviews the analysis,research,and treatment measures applied to address the major geotechnical issues of the hydropower project,providing refer-ence for other similar projects.