Results 121 to 130 of about 18,205 (226)

Dissipated energy in undrained cyclic triaxial tests [PDF]

, 2015
Energy-based methods are an emerging tool for the evaluation of liquefaction potential. These methods relate excess pore water pressure build-up to seismic energy dissipated per unit volume.
Azeiteiro, RJN, Coelho, PALF, Grazina, JC, Taborda, DMG   +3 more
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A finite-strain hyperviscoplastic model and undrained triaxial tests of peat

, 2017
This paper presents a finite-strain hyperviscoplastic constitutive model within a thermodynamically consistent framework for peat which was categorised as a material with both rate-dependent and thermodynamic equilibrium hysteresis based on the data ...
Nagel, T., O'Kelly, B. C., Zhang, L.
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Influences of temperature stress path on strength characteristics of undisturbed marine sediments

Yantu gongcheng xuebao
The difference between the room and the in-situ temperatures leads to that of the measured physical and mechanical parameters of marine sediments. Based on the temperature-controlled triaxial apparatus, the consolidated undrained shear tests are carried ...
ZHANG Xinrui 1, 3, KONG Gangqiang 1, YANG Qing 2
doaj   +1 more source

Slope Instability of the Earthen Levee in Boston, UK: Numerical Simulation and Sensor Data Analysis

, 2014
The paper presents a slope stability analysis for a heterogeneous earthen levee in Boston, UK, which is prone to occasional slope failures under tidal loads.
Jordan, D., Krzhizhanovskaya, V. V., Melnikova, N. B., Sloot, P. M. A.   +3 more
core   +1 more source

Anisotropy characterization of upper shanghai clays: Shear strength and small-strain stiffness

Journal of Rock Mechanics and Geotechnical Engineering
Comprehensive investigations have been conducted to study the structure and overconsolidation of upper Shanghai clays, i.e. Layers 2–6 clays, typically located at depths of 30–40 m.
Lixin Lan, Wenxuan Zhu, Guanlin Ye, Qi Zhang, Tongshuai Yang   +4 more
doaj   +1 more source

Anisotropy effects on the undrained stability of cuts in clays [PDF]

, 2019
It has long been recognised that soils are generally anisotropic with some of their properties varying depending on the direction of measurement. In particular, strength anisotropy should be a main concern in relation with the stability assessment of ...
Conesa, Sergi, Gens Solé, Antonio, Mánica Malcom, Miguel Ánge   +2 more
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Investigation of the Shear Strength Behavior of Clay Soil Reinforced with Basalt Fiber Using Ring Shear Tests

Applied Sciences
The limited availability of competent foundation soils in rapidly urbanizing regions makes construction on weak clayey deposits increasingly unavoidable.
Emre Aytug Ozsoy, Hasan Burak Özmen, Ersin Güler   +2 more
doaj   +1 more source

Undrained bearing capacity of obliquely-eccentrically loaded shallow foundations overlying a heterogeneous and inherently anisotropic clay deposit

Journal of Rock Mechanics and Geotechnical Engineering
Clay deposits typically exhibit significant degrees of heterogeneity and anisotropy in their strength and stiffness properties. Such non-monotonic responses can significantly impact the stability analysis and design of overlying shallow foundations.
Maedeh Nasiri Pishvari, Hessam Fathipour, Suraparb Keawsawasvong, Boonchai Ukritchon, Meghdad Payan, Reza Jamshidi Chenari   +5 more
doaj   +1 more source

The brittleness index in hydraulic fracturing [PDF]

, 2015
We present a new definition of a brittleness index which is used as a criterion for candidate selection of rock intervals for hydraulic fracturing. The new index is a combination of material strength parameters and insitu stresses. It was derived from an
Atkinson, C, Papanastsiou, P
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Deformation and Shear Strength Characteristics of Some Tropical Peat and Organic Soils [PDF]

, 2006
Peat and organic soils commonly occur as extremely soft, unconsolidated surficial deposits that are an integral part of the wetland systems. They may also occur as strata beneath other surficial deposits.
Kim Huat, Bujang
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