2005 Volume 15 Issue 4 Pages 285-306
Embankment dams are often constructed on soft rock foundations in Japan, so it is important to precisely predict deformation of the foundations due to the fill placement at the design stage. For the accurate evaluation of settlement and strain of rock foundation surface during the construction, the influence of the scattering of the deformability of foundations on the deformation behavior should be investigated. In this paper, the evaluation method of settlement and strain of rock foundation surface during the construction was studied with stochastic deformation analysis changing coefficient of variation of the deformation modulus of dam foundation with a geological boundary. Based on the results of numerical study, the dam foundation design with the deterministic method which ensured the required reliability of the requirement was discussed.
