摘要:

AbstractThe problem of a massless, rigid disc vibrating harmonically on a ‘constrained’ transversely isotropic elastic half space is considered. The material is called constrained because it is assumed that the elastic constants satisfy a certain equation. The problem for each mode of vibration is reduced to the solution of a Fredholm integral equation of the second kind. Results are presented to show the general effect of the material anisotr

ISSN:0363-9061    

DOI:10.1002/nag.1610060303

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

摘要:

AbstractThe method of slices commonly used for estimating static stability of natural slopes and embankments is extended to include the dynamic effects due to earthquake loading. The equation of motion of a typical slice along a path different from its base is derived. The calculations of displacement of a slide mass using the Newmark procedure are discussed and illustrated with an example problem.

ISSN:0363-9061    

DOI:10.1002/nag.1610060304

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

摘要:

AbstractIt is the objective of this note critically to assess the merits and shortcomings of two‐surface and multi‐surface plasticity theor

ISSN:0363-9061    

DOI:10.1002/nag.1610060305

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

摘要:

AbstractA finite element model is developed to simulate the behaviour of an aquifer used as storage space for a compressed air energy storage (CAES) system. The governing equations describing a two‐phase flow of air and water are coupled non‐linear partial differential equations and are solved by the Galerkin approach. The resulting computer model is applied to a gas percolation problem. Upon verification of the numerical results, the model is employed to simulate the air‐water displacement in a storage reservoir during daily air cycling. The corresponding saturation variations and the effects of reservoir permeability on the system are presented. The results obtained are essential in establishing storage design and stability criteria for long‐term operation of compressed air energy storage

ISSN:0363-9061    

DOI:10.1002/nag.1610060306

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

摘要:

AbstractTalbingo Dam is a well instrumented, 162m high rockfill structure with an upstream sloping silty clay core, located in the southern New South Wales, Australia. A non‐linear finite element analysis of its behaviour was carried out under plane strain conditions, simulating its construction, reservoir filling and steady seepage loading stages. Material parameters are determined from triaxial tests on the rockfill, core, filter and transition materials, compacted to field dry density and moisture content. All materials show non‐linear stress–strain behaviour, with rockfill exhibiting work softening at large strain. Mohr envelopes for rockfill are slightly curved but linear approximations are acceptable. When compared with stresses and deformations at maximum cross section, the analytical results show good agreement in most areas. A non‐linear model for pore pressure response is used successfully to predict the high pore pressures in the lower region of the core. A stability analysis performed for the end of construction stage, based on finite element stresses, shows that the design safety factors are slightly conse

ISSN:0363-9061    

DOI:10.1002/nag.1610060307

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

摘要:

AbstractFor many soils experimental evidence suggests that deviation from normality between the plastic strain increments and the yield function is exhibited mainly in the volumetric behaviour, whereas the deviatoric behaviour exhibits normality. An analysis of the consequence of this observation is presented, and it leads to an expression for the plastic potential function as composed of two functions, a yield function and another dependent only on the hydrostatic pressure; the latter is considered to constitute the concept of correction functions presented recently by Desai and Siriwardane13.

ISSN:0363-9061    

DOI:10.1002/nag.1610060308

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610060310

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610060311

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY

ISSN:0363-9061    

DOI:10.1002/nag.1610060302

出版商:John Wiley&Sons, Ltd    

年代:1982

数据来源: WILEY