Effective Stress Analysis of Seismic Response and Liquefaction: Theory

Dikmen, S. Umit; Ghaboussi, Jamshid

doi:10.1061/(asce)0733-9410(1984)110:5(628)

Cited by 20 publications

(6 citation statements)

References 18 publications

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“…However, here liquefaction is considered to have been initiated at some depth where a susceptible layer occurs within a zone of maximum acceleration. [This zone of maximum response-acceleration is inferred from experimental work and is thought to occur at depths of between 3 and 10 m in thick cohesionless soils (Dikmen & Ghaboussi 1984).] Liquefaction is later achieved at other shallower susceptible layers as cyclic loading progresses, and as dewatering of lower earlier liquefied layers results in increased pore water pressures.…”

Section: Diachronous Liquefaction Initiationmentioning

confidence: 92%

Deformation of Scottish Quaternary sediment sequences by strong earthquake motions

Davenport

Ringrose

1987

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Summary Deformed Quaternary sand, silt, clay and peat sequences from four localities in Scotland are interpreted as seismites by the deformation history of liquefied, fluidized, slumped, and faulted units, and by comparison with seismites documented elsewhere. Two of the sequences consist of outwash sands and silts, deposited during the recession of the Devension ice cap in the region of Perth. Other deposits consist of glacial sands and interglacial peats in the Western Highlands, and glacio-lacustrine silts in the Glen Roy area; both probably deposited during the late stages of the Loch Lomond Readvance. Careful evaluation of internal geometries and deformation sequences reveals an intimate association of ball-and-illow, fluidization, dish, load, flame and ‘fault-grading’ structures which are most satisfactorily explained by prolonged ground shaking produced by shallow earthquakes. In some cases, potential fault sources for the inferred earthquakes have been identified.

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Section: Diachronous Liquefaction Initiationmentioning

confidence: 92%

Deformation of Scottish Quaternary sediment sequences by strong earthquake motions

Davenport

Ringrose

1987

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“…'Sand blows', similar to the class C injection structures, are especially common during relatively strong seismic shaking (Kuribayashi and Tatsuoka, 1975). Experimental studies on earthquake-induced liquefaction (Dikmen and Ghaboussi, 1984) indicate that the subsurface deformation (as observed at Glen Roy) is typical of liquefaction resulting from the cyclic vibration of a saturated sediment column. An earthquake origin also provides a ready explanation for the lateral extent of deformation and the pattern of concentric zonation.…”

Section: Nte Rpr Etatlo N Ofmentioning

confidence: 99%

Palaeoseismic (?) liquefaction event in late Quaternary lake sediment at Glen Roy, Scotland

Ringrose

1989

Terra Nova

116

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Late Quaternary lake sediment deposits from a former ice-dammed lake at Glen Roy, Scotland, contain deformation structures indicative of liquefaction. The distribution of deformation styles reflects a concentric pattern of the degree of liquefaction. A possible fault rupture and several landslides are also observed in the central area. The liquefaction structures, the zonation of the sediment deformation and the association of deformation with landsliding can most simply be interpreted in terms of ground shaking during a major earthquake occurring at the end of the last glacial episode in Scotland (c. 10,000 BP).the Glen Roy valley was blocked by a glacier during the Loch Lomond Readvance of the Scottish ice cap (Fig. 1)

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“…The CamClay and the modified Cam-Clay models (MCC) [12] are some of the earliest models widely used in geotechnical engineering to represent clay behaviour and include an elliptical yield surface illustrated in Figure 3. Other models use multiple yield surfaces or bounding surface plasticity [13], and can simulate the response of the soil under seismic conditions [14]. Prevost and Popescu [3] present a review of the classes of constitutive relations used for granular material including classical plasticity models and micro-mechanically based models.…”

Section: Constitutive Relationsmentioning

confidence: 99%

Visual framework for development and use of constitutive models

Hashash¹,

Wotring²,

Yao³

et al. 2002

Num Anal Meth Geomechanics

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SUMMARYAdvanced constitutive relations are used in geotechnical engineering to capture measured soil and rock behaviour in the laboratory, and in numerical models to represent the material response. These constitutive relations have traditionally been difficult to use, understand, and develop except by a limited number of specialists. This paper describes a framework for transforming the representation of constitutive relations, as well as stress and strain quantities from a series of mathematical equations and matrix quantities to multidimensional geometric/visual objects in a dynamic interactive colour-rich display environment. The paper proposes a shift in current approaches to the development of constitutive equations and their use in numerical simulations by taking advantage of rapid advancements in information technology and computer graphics. A novel interactive visualization development and learning environment for material constitutive relations referred to as VizCoRe is presented. Visualization examples of two constitutive relations, the linear elastic with von Mises failure criteria and the Modified Cam Clay (MCC) are shown. These include two-and three-dimensional renderings of stress states and paths and yield and failure surfaces. In addition, the environment allows for the visualization of the implicit integration algorithm used for the numerical integration of both constitutive models.

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Effective Stress Analysis of Seismic Response and Liquefaction: Theory

Cited by 20 publications

References 18 publications

Deformation of Scottish Quaternary sediment sequences by strong earthquake motions

Deformation of Scottish Quaternary sediment sequences by strong earthquake motions

Palaeoseismic (?) liquefaction event in late Quaternary lake sediment at Glen Roy, Scotland

Visual framework for development and use of constitutive models

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