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粘弾性を考慮した盛土材の異方圧密方程式について 井上, 宗治 Inoue, Sohji 511 Anisotropy Consolidation test Pore pressure Settlement Visco-elasticity application/pdf It has been well known that flow of pore fluid in compacted soils will also occur horizontally as well as vertically since the surface of an embankment is a natural drainage boundary. In addition, this flow is ultimately predominant in the horizontal direction in the soil structure because of the layering roller- compacted fill. On the other hand, in consolidation tests on compacted soils as embankment materials, the curvre representing time-dependant settlement relationship has a characteristic shape. This phenomenon is very different from ordinary saturated clays. The present objected is to extend the one-dimentional consolidation theory to take account of the two dimentional anisotropic one. Considering anisotropy of consolidation behavior and characteristic of compacted soils mentioned above, the author derived an anisotropic consolidation equation and its solution under axi-symmetric cylindrical coordinates. In this treatment, an assumption was made that a stress-strain relation of the soil skeleton was represented by a rheological model comprising a Voigt body. Consequently, a general expression of the strain was proposed for the sum of two parts: the effective stress remaining constant and effective stress varying with time(Eq.(12)). Solutions obtained from the basic equation (Eq. (15)or(16)), that are equations regarding the pore pressure distribution (Eq.(26)), consolidation setttlement(Eq.(27)) and average degree of consolidation (Eq.(28)), were found to be similar to solutions of one-dimensional equation in form except for additional terms due to radial directional effects. From this reasoning, the author indicated that parmeters concerning two-dimensional anisotropic consolidation could be calculated numerically by utilizing parameters obtained from one-dimensional one. 三重大学生物資源学部 1989-03-30 jpn departmental bulletin paper VoR http://hdl.handle.net/10076/3036 https://mie-u.repo.nii.ac.jp/records/5688 0915-0471 AN10073846 三重大学生物資源学部紀要 = The bulletin of the Faculty of Bioresources, Mie University 2 63 70 https://mie-u.repo.nii.ac.jp/record/5688/files/AN100738460000206.pdf application/pdf 393.6 kB 2017-02-18