ZHANG Fa-ming, PANG Zhen-jiang, CHEN Zu-yu, et al. Stability analysis and systematic anchorage for spillway excavated slope of Nuozhadu dam project[J]. 2005, 26(S1期 刊出日).
ZHANG Fa-ming, PANG Zhen-jiang, CHEN Zu-yu, et al. Stability analysis and systematic anchorage for spillway excavated slope of Nuozhadu dam project[J]. 2005, 26(S1期 刊出日).DOI:
Nuozhadu dam project is situated in Yunnan province in China
it is the important project in Lanchangjiang river development. The stability of excavated slope of the spillway is the major problem in dam construction. Based on field investigation of the structure of the slope
more than 1400 joints were collected
then
by using the Monte-Carlo simulation method and GSI method
the persistence of the joints and the shear strength index of the slope rock mass were calculated. Furthermore
according to the simulated annealing method
the sliding surface of the slope was determined
the stability of the slope was calculated via improved two dimensional Sarma’s limit equilibrium method. Finally
the method to improve the slope stability was suggested.