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High-throughput profiling of fungal diversity and physicochemical dynamics in strong-aroma Daqu. [PDF]

AMB Express
Chaohua L, Wei Z, Xiaoli Z, Zhengxiang G, Tao P, Renjie J, Lingxiang W, Xinkai C, Beiling Y, Chaojiu H.   +9 more
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Explosive craters and soil liquefaction

Nature, 2004
Curious dry craters formed in the aftermath of a disastrous earthquake are explained. The Bhuj earthquake in January 2001, with a moment magnitude of 7.7, was one of the most disastrous in India's recorded history. Although its fault plane did not rupture the surface, the earthquake caused ground failure, including the formation of sand-blow craters ...
Paul A, Rydelek, Martitia, Tuttle
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Liquefaction of crushable soils

Géotechnique, 1998
Crushable soils when sheared in a dense state have stress paths which are similar to those for loose, hard-grained sands; however, because of their angular nature they do not liquefy as easily under cyclic loading. In the Hyogo-ken Nambu, 1995, earthquake, there was widespread liquefaction of land areas reclaimed from the sea using a crushable, highly
M. Hyodd, A. F. L. Hyde, N. Aramaki
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A liquefaction surface to describe liquefaction phenomena in unsaturated sandy soils

Proc. of the 7th International Conference on Earthquake Geotechncial Engineering, 2019
The energetic interpretation of liquefaction tests indicates that the behavior of unsaturated sands can be related to the specific energy spent to liquefaction In this paper, an insight is proposed on the role played by the two components of such a specific energy: the specific volumetric energy to liquefaction (Ev,liq) and the specific deviatoric ...
MELE L., LIRER S., FLORA A.
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Soil Liquefaction Procedures—a Review

Journal of the Geotechnical Engineering Division, 1977
Various procedures used for evaluating soil liquefaction are reviewed and compared. Major emphasis is given to the equivalent uniform cycle procedure and the cumulative damage approach. Simplified versions of these two procedures are used to evaluate the factor of safety against liquefaction for 41 actual cases where liquefaction has or has not ...
Julio E. Valera, Neville C. Donovan
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Liquefaction of Cohesive Soils

Soil Dynamics and Liquefaction 2000, 2000
Liquefaction of sand, clean or with some fines content, has been extensively studied over the last three decades and is currently a phenomenon reasonably predictable. The study of cohesive soils behavior during and immediately after cyclic loading is especially difficult because of their structure variability and the major influence of structural ...
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Liquefaction Mechanism for Layered Soils

Journal of Geotechnical Engineering, 1994
Results from four centrifuge model tests are presented. Three of the model tests involve layered soil deposits subject to base shaking; one model test involves a uniform soil deposit of sand subject to base shaking. The layered soil models consisted of fine sand overlain by a layer of relatively impermeable silica flour (silt).
Gregg L. Fiegel, Bruce L. Kutter
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Soil Liquefaction: Mechanism and Assessment of Liquefaction Susceptibility

2013
The basic mechanisms of earthquake-induced soil liquefaction are introduced by considering the shaking of a block on a thin granular layer, which mechanical behaviour is modelled with a hypoplastic constitutive model. If the block is founded on a dry cohesionless soil or drainage of the granular layer is fully allowed, the soil densifies and the block ...
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Soil Liquefaction and Countermeasures

2014
The mechanism of soil liquefaction caused by earthquake ground motion and the soil conditions for the occurrence of liquefaction is explained. Liquefaction-induced damages to structures during past earthquakes, such as subsidence and inclination of buildings and bridges, uplift of underground structures, collapse of quaywalls and embankment are ...
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Computer Simulation of Soil Liquefaction

GeoCongress 2006, 2006
Soil liquefaction is a phenomenon that develops in loose saturated sand deposits during earthquakes (or other disturbances) that can cause great damage. In an effort to raise awareness of such a hazard, a computer simulation model of soil liquefaction was developed using STELLA (a computer program for model building and simulation).
Sherif A. Elfass, Gary M. Norris, Ellen Jacobson   +2 more
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