摘要:

AbstractPerhaps the most widely used non‐linear elastic soil behaviour law uses the hyperbolic functions to define tangent modulus and Poisson's ratioversusstrain.1,2This paper presents the results of analytical studies with the hyperbolic elastic finite element technique for the prediction of static earth pressures against a 10‐story basement wall. Carefully performed laboratory tests of the backfill material and measurements of earth pressures during backfilling provided the basis fora, refinement of the current hyperbolic elastic method. The refined analysis resulted in closer agreement of calculated earth pressures with measured val

ISSN:0363-9061    

DOI:10.1002/nag.1610050402

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractA method allowing for the presence of infinitely distant boundaries in prismatic bodies is developed. The method is closely related to the consistent boundary concept used in dynamic applications but the development presented is algebraic and context free and is thus applicable to a wide variety of geotechnical problems both static and dynamic.

ISSN:0363-9061    

DOI:10.1002/nag.1610050403

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractThis paper examines the problem of the interaction between a loaded rigid circular foundation located at the surface of an isotropic elastic halfspace and an inclined concentrated anchor load which is located at a finite depth along the axis of symmetry. Such inclined loads can be induced by, for example, anchor regions supporting earth retaining structures. The loaded rigid circular foundation resting in smooth contact with the elastic soil mass experiences a displacement and a tilt due to the action of the inclined anchor load. The magnitude of the rotational settlement is evaluated in exact closed form.

ISSN:0363-9061    

DOI:10.1002/nag.1610050404

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractSolutions for the magnitude and rate of settlement of rigid foundations supported by soil reinforced with granular piles are presented. An analytic solution using the theory of elasticity is developed for the settlement of the foundation and expressions for evaluating the moment and shear distributions across the foundation are given. A solution for the increase of the rate of settlement due to the presence of the granular piles has been found by a numerical solution of Biot's equations of consolidation.

ISSN:0363-9061    

DOI:10.1002/nag.1610050405

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractA layer of fill deposited in a soft wet condition will consolidate under its own weight and will commonly undergo comparatively large strains in the process. Neither of these aspects of behaviour can be modelled by traditional consolidation theories. In this paper, a consolidation model is developed from the theory proposed by Gibsonet al.5and is applied here to soil consolidation during and after soil deposition. No restriction is made on the magnitude of strain, so that the boundaries are not taken as being fixed in space, but are allowed to move as required by the process of consolidation. However, perhaps the more important aspect is the consideration of self‐weight, since in many instances, the surface loading applied to soft, soils is small, and the majority of the compression of the layer occurs while the effective stresses reach equilibrium with the weight of the soil. Although some idealizations have to be made in assuming relationships between soil parameters, it is shown that the self weight effects in consolidation can be significant, and fundamental to an understanding of soft soil behaviou

ISSN:0363-9061    

DOI:10.1002/nag.1610050406

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractA simple algorithm (PILLR) for obtaining by two‐dimensional analysis thee essential results that would be obtained in an actual three‐dimensional finite element analysis of stress about mine pillars in flat‐laying stratified rock is presented. A series of comparisons between the distributions of the local factor of safety calculated from the results of three‐dimensional analysis and that obtained in the PILLR two‐dimensional analyses for pillars of length/width ratio ranging from 0.33 to 8.0 shows the algorithm to be quite effective. The average vertical stress over the horizontal mid‐plane of the pillar in the PILLR two‐dimensional analyses is always within 0.5 per cent of the exact average; the local safety factor distribution is always within 10 per cent of the three‐dimensional result. The ratio of the computer core x time product for the 2D' to 3D analyses is approimately 1/150. Additional improvements ard possible, although with the current PILLR algorithm 3D analyses require less than 1 minute for execution. This fact makes technically sound 3D mine pillar design analyses economically feasible on

ISSN:0363-9061    

DOI:10.1002/nag.1610050407

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

摘要:

AbstractEstimating subsurface pore water pressures in natural slopes along the periphery of rivers and reservoirs for future conditions, created by the operational requiremets to meet increases in energy demand from the observed data of the past and present, operations, is possible with the use of a mathematical model. An effective algorithm for calculating pore water pressure at any location in a slope stability section is to use a complete polynomial and to assure geometric invariance of the calculated results.

ISSN:0363-9061    

DOI:10.1002/nag.1610050408

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610050409

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610050410

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610050411

出版商:John Wiley&Sons, Ltd    

年代:1981

数据来源: WILEY