Abstract:According to the stress-strain characteristics of soil in flat dilatometer tests,the relationship between the test results and two indexes(shear modulus and the Poisson’s ratio) of the soil was derived based on the Mindlin’s solution in the elastic theory.Then,the theoretical formula of the in-situ initial horizontal stress σh0 and the lateral earth pressure coefficient at rest K0 were derived.Compared with the practical data of subway projects in Shanghai,the analytic results were satisfactory.
唐世栋;吕建春;傅纵;. 扁铲侧胀试验求解初始水平应力和静止侧压力系数[J]. 岩土工程学报, 2006, 28(12): 2144-2148.
TANG Shidong, Lv Jianchun, FU Zong. Solution to initial horizontal stress and lateral earth pressure coefficient at rest by flat dilatometer tests. Chinese J. Geot. Eng., 2006, 28(12): 2144-2148.