نتایج جستجو برای: uplift pressure

تعداد نتایج: 411477  

2006
Danny Hilman Natawidjaja Kerry Sieh Mohamed Chlieh John Galetzka Bambang W. Suwargadi Hai Cheng R. Lawrence Edwards Jean-Philippe Avouac Steven N. Ward

[1] Large uplifts and tilts occurred on the Sumatran outer arc islands between 0.5 and 3.3 S during great historical earthquakes in 1797 and 1833, as judged from relative sea level changes recorded by annually banded coral heads. Coral data for these two earthquakes are most complete along a 160-km length of the Mentawai islands between 3.2 and 2 S. Uplift there was as great as 0.8 m in 1797 an...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Alexandre Antonelli Johan A A Nylander Claes Persson Isabel Sanmartín

Recent phylogenetic studies have revealed the major role played by the uplift of the Andes in the extraordinary diversification of the Neotropical flora. These studies, however, have typically considered the Andean uplift as a single, time-limited event fostering the evolution of highland elements. This contrasts with geological reconstructions indicating that the uplift occurred in discrete pe...

Journal: :Science 2015
Ping Wang Dirk Scherler Jing Liu-Zeng Jürgen Mey Jean-Philippe Avouac Yunda Zhang Dingguo Shi

In their Comment, Zeitler et al. do not challenge our results or interpretation. Our study does not disprove coupling between tectonic uplift and erosion but suggests that this coupling cannot be the sole explanation of rapid uplift in the Himalayan syntaxes.

Journal: :international journal of civil engineering 0
amir hossein jafarieh p.o. box: 11155-9313, tehran, iran mohammad ali ghannad p.o. box: 11155-9313, tehran, iran

it is well-known that the behavior of soil-structure systems can be well described using a limited number of non-dimensional parameters. this is the outcome of researches based on the premise that the foundation is bonded to the ground. here, it is shown the concept can be extended to systems with foundation uplift. a set of non-dimensional parameters are introduced which controls the main feat...

2017
Mary Kate Stewart

This study measures the uplift rates of a flight of marine terraces along the Glenafric coastal region of the South Island of New Zealand, which will provide a context for how local fold growth in the North Canterbury fold and thrust belt (NCFTB) contributes to local uplift rates. Several methods were used to measure uplift rate of the marine terraces: 1) collecting shell samples for AAR dating...

2014
Yan Hu Roland Bürgmann Jeffrey T Freymueller Paramesh Banerjee Kelin Wang

A better understanding of fluid-related processes such as poroelastic rebound of the upper crust and weakening of the lower crust beneath the volcanic arc helps better understand and correctly interpret the heterogeneity of postseismic deformation following great subduction zone earthquakes. The postseismic deformation following the 2011 Mw9.0 Tohoku earthquake, recorded with unprecedented high...

Journal: :Sustainability 2022

Uplift capacity of suction caissons is one the main concerns in design jackets with multi-caissons supported offshore wind turbine. The uplift movement leads to soil stress variation and increases difficulty predict capacity. In this paper, a calculation method considering release differential pressure contribution proposed caisson. Firstly, series numerical simulations based on SANISAND model ...

Journal: :Sohag Engineering Journal (Print) 2021

Underground structures can be severely damaged during strong earthquakes. Potential damage to infrastructure due uplift increases in liquefied soils. Several models used simulate soil liquefaction. This study presents a new numerical method estimate the overall response of shallow-buried tunnels and interpret liquefaction mechanism saturated sand around structure under seismic action. The stems...

2014
A J Roberts P Knippertz

Haboobs are dust storms produced by the spreading of evaporatively cooled air from thunderstorms over dusty surfaces and are a major dust uplift process in the Sahara. In this study observations, reanalysis, and a high-resolution simulation using the Weather Research and Forecasting model are used to analyze the multiscale dynamics which produced a long-lived (over 2 days) Saharan mesoscale con...

2013
Ashraf Nazir Ahmed Nasr

Many offshore structures are subjected to overturning moments due to wind load, wave pressure, and ship impacts. Also most of retaining walls are subjected to horizontal forces and bending moments, these forces are due to earth pressure. For foundations in such structures, usually a combination of vertical and batter piles is used. Little information is available in the literature about estimat...

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