Abstract：In each design phase，thorough studies were conducted to explore the key technical issues of rock engineering for the superhigh arch dam of Xiluodu hydropower project，allowing the physical shape and structural design of the arch dam to fit the geological conditions of the dam site. In view of changes in the geological conditions at the foundation of the dam on the riverbed，the designs of extending foundation surface excavation and dovetailing the dam body and foundation rock on both upstream and downstream sides were introduced，allowing the arch dam and foundation to fit each other and improving the stress conditions of the dam body and foundation. 3D geomechanics model test and finite element analysis results indicate that the Xiluodu superhigh arch dam and its foundation are in good conditions both in construction and operation periods. The monitoring data show that the behaviors of dam and foundation correspond with regular pattern. The“digital dam” initiative for the Xiluodu project，which is based on the theory of total life cycle，has lent strong support to construction process control and decision-making；this ensures all work conditions in the construction and operation stages meet design requirements，so as to assure the safety and reliability of the arch dam.
樊启祥，周绍武，李炳锋. 溪洛渡特高拱坝建设的岩石工程关键技术[J]. 岩石力学与工程学报, 2012, 31(10): 1998-2015.
FAN Qixiang，ZHOU Shaowu，LI Bingfeng. KEY TECHNOLOGIES OF ROCK ENGINEERING FOR CONSTRUCTION OF XILUODU SUPERHIGH ARCH DAM. , 2012, 31(10): 1998-2015.
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2012, Vol. 31 
