Showing papers in "Soils and Foundations in 1970"

TL;DR: In this paper, the elastic theory can serve as a substitute for the poro-elastic theory, especially when the latter is associated with the undrained condition like dynamical problems.

TL;DR: In this paper, a consolidation test method with constant rates of loading is proposed as an alternative of the standard consolidation test, conventionally used in the laboratory, and the results obtained from it always show good agreement with those from the conventional test.

TL;DR: In this article, the significance of the limit analysis in terms of real behavior of soils and their idealizations is discussed, and the power and simplicity of application of limit analysis method is demonstrated.

TL;DR: In this paper, the uniqueness of the solution for these different methods of cutting was investigated by following the conventional method of approach which has been used extensively in the theory of elasticity and plasticity.

TL;DR: In this paper, field investigations to clarify the characteristics of liquefaction of level sandy ground were carried out at Nanaehama beach near Hakodate in Hokkaido after the Tokachioki earthquake of 1968.

TL;DR: In this paper, the effect of addition of flocculant (Calcium Hydroxide) and dispersant (Sodium Hexameta Phosphate) agents on fine grained soil has been studied with particular reference to residual strength.

TL;DR: In this paper, the influence of various factors involved on resilience characteristics of a silty clay and a well-graded sand has been investigated by repeated-load triaxial compression tests.

TL;DR: In this paper, the authors investigated the cause of railway embankment damage caused by the 1968 Tokachioki earthquake and reported the results of the studies conducted in the first year of scheduled investigation period.

TL;DR: In this article, the authors considered the additional pore pressure change (positive or negative) that may occur between the in-situ state and the failure state when the possibility of undrained failure is being examined.

TL;DR: In this paper, the authors described the damage to various harbour structures caused by the 1968 Tokachioki earthquake and subsequent tsunami and made a stability analysis for these structures by the current design method, and compared with the actual condition of damage.

TL;DR: In this article, the stability of low embankments with arbitrary surcharge is examined by assuming that the φ=0 analysis is applicable and the undrained shear strength increases linearly with depth.

TL;DR: The dams which were damaged during the Tokachioki earthquake of 1968 are small earth dams of volcanic sandy loam founded on soft sandy laminar loam of an average thickness of 3 m as discussed by the authors.

TL;DR: In this article, the authors examined the influence of properties of soil grains on their permeability and found that the degree of weathering and mineral composition had a significant effect on the permeability of the soil.

TL;DR: In this article, an analysis of laterally loaded piles is presented taking elasto-plastic nature of the soil into account for both cohesive and cohesionless soils, and the results show that the flexural behaviour of a vertical pile in an elastoneplastic soil is considerably influenced by type of variation of plastic resistance, soil modulus variation and the boundary conditions at the top.

TL;DR: The finite element method of analysis has been applied to a wide variety of problems in the realm of soil and rock mechanics during the past few years as mentioned in this paper, and the developments that are of particular interest to soil engineers are reviewed.

TL;DR: In this paper, a study of the consistency of decomposed granite soils was made by a new method based on the slump test and it was shown that the degree of weathering and mineral composition which play a significant role in the classification of the decomposed granitic soils can be well represented by the consistency according to this method, and that the consistency is closely related to engineering properties such as compaction and permeability.

TL;DR: In this article, the authors presented the analytical and the graphical method for determination of the direction and of the stress in the rupture line on one side of the contact between two different non-cohesive media, provided that the following values are known : the shear angles of both media that are assumed to obey Coulomb's failure law, the dilatation angles, the stress state and the direction of the failure line on the other side of a contact.

TL;DR: In this article, a model of the nonlinear Maxell type has been proposed to study the stress-strain characteristics of a saturated clay, assuming the soil structure resistance to be viscoelastic.