Results 41 to 50 of about 130,394 (163)

Shear Work and Pore Water Pressure in Undrained Shear

open access: yesSoils and Foundations, 1985
When a loose sand is subjected to a cyclic rotation of principal stress axes during an undrained test, excess pore water pressure is generated. To study the nature of pore pressure buildup, several series of laboratory tests were conducted using a hollow cylindrical torsion shear apparatus.
TOWHATA, IKUO, ISHIHARA, KENJI
openaire   +2 more sources

Pore structure features of reservoirs at late high water-cut stage, Lamadian Oilfield, Daqing, China

open access: yesPetroleum Exploration and Development, 2008
: Lamadian Oilfield has entered a high water-cut stage after long-term water flooding, and injected water circulates in high-permeability channels. Constant-rate and constant-pressure mercury injections were used to study the change in the physical ...
Yu-bao LIN   +3 more
doaj   +1 more source

Tests for Sandstone Strength and Failure Model under Water Pressure

open access: yes工程科学与技术, 2015
:The strength and failure forms under high water pressure are important for deep buried and high water pressure tunnel and under groud mining. The conventional uniaxial experiment and the compression tests under different water pressure were carried out ...
CHEN Ying, MA Dong-tao, HE De-wei
doaj  

A Method to Estimate Dynamic Pore Water Pressure Growth of Saturated Sand-Gravel Materials

open access: yesApplied Sciences
The liquefaction of saturated sand-gravel material samples from the Xinjiang valley were investigated under cyclic loading. A series of large-scale dynamic triaxial tests were used to determine the dynamic characteristics of the sand-gravel sample under ...
Jinyi Chen   +3 more
doaj   +1 more source

Distribution of pore water pressure in an earthen dam considering unsaturated-saturated seepage analysis

open access: yesE3S Web of Conferences, 2016
The variation of pore water pressure in earthen dams plays an important role in maintaining its stability. The pore water pressure within the dam are altered by the external loading conditions like rapid drawdown of reservoir water, earthquake loading ...
Venkatesh Kumar, Karumanchi Siva Ram
doaj   +1 more source

Experimental investigation of wave-driven pore-water pressure and wave attenuation in a sandy seabed

open access: yesAdvances in Mechanical Engineering, 2016
Wave–seabed interaction has become a big concern of coastal researchers and engineers in the past decades as it may largely contribute to the seabed instability and failure of marine foundations.
Jisheng Zhang   +4 more
doaj   +1 more source

ANALISIS KENAIKAN TEKANAN AIR PORI CLEAN SAND MENGGUNAKAN METODE CYCLIC SHEAR-STRAIN CONTROLLED

open access: yesJurnal Teknik Sipil dan Perencanaan, 2015
Liquefaction phenomenon could be analysed using strain-controlled loading method where informations about sands pore water pressure build-up were presented.
Rini Kusumawardani   +3 more
doaj  

In-situ tests on pore-water pressure response and consolidation mechanism of surface sediments in tidal flat of Yellow River Delta under tide and wave loading

open access: yesYantu gongcheng xuebao
In order to study the pore pressure response and consolidation mechanism of the surface sediments in the tidal flat of the Yellow River Delta under the action of wave and tide loading, the fluid sediments imitating the rapidly deposited seabed silty ...
ZHANG Jianmin 1, 2, SHAN Hongxian 3, WANG Zhenqiang 1, 2, WANG Zhicai 1, 2, WANG Jinjin 1, 2
doaj   +1 more source

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