ROCK MASS RELAXATION MECHANISM AND REINFORCEMENT METHOD OF FOUNDATION EXCAVATION OF SUPER HIGH ARCH DAM
As for those arch dams constructed in high in situ stress valley, foundation excavation may lead to stress and strain energy release and rock mass relaxation, and then cause shallow stability problem, which has few successful examples for us to leam how to design and reinforce the foundation for super high arch dam with complicated geo-condnion. In this paper, a detailed discussion was conducted focusing on the characters, types of rock mass relaxation and loose mechanisms of excavated foundation of super high arch dam. Based on the calculation of anti-shear and anti-sliding safety factor of dam interface, system treatment measures, such as grouting, drainage, backfill concrete and reinforced bolts, are proposed.
PENG LIN ZI-CANG LI JIN-XIE JIN QIANG YANG WEI-YUAN ZHOU
State Key Laboratory of Hydroscience and Engineering, Tsinghua University Beijing 100084, China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
229-234
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）