Results 11 to 20 of about 130,854 (263)

Study on the Variation Rule and Characteristics of Pore Water Pressure in the Failure Process of Saturated Rock

open access: yesShock and Vibration, 2021
With the development of tunnels and other engineering constructions into the deep strata, rock masses are more prone to dynamic damage such as rock bursts under in situ conditions and excavation disturbances.
Yuezheng Zhang
doaj   +1 more source

Experimental study on effect of initial static pore water pressure on static and dynamic shear properties of sand

open access: yesYantu gongcheng xuebao, 2019
A series of undrained cyclic torsional shear tests and monotonic torsional shear tests are carried out on Fujian standard sand and Hutuo River fine sand under different initial static pore water pressures by using the hollow cylinder torsional shear ...
XU Cheng-shun 1, LI Yan-mei 1,2, PAN Xia 1, GENG Lin 1
doaj   +1 more source

Field monitoring of pore water pressure in fully and partly saturated debris flows at Ohya landslide scar, Japan [PDF]

open access: yesEarth Surface Dynamics
The characteristics of debris flows (e.g., mobility, sediment concentration, erosion, and deposition of sediment) are dependent on the pore water pressure in the flows.
S. Oya, F. Imaizumi, S. Takayama
doaj   +1 more source

Development of a pore gas pressure transducer used in unsaturated soils at high water content [PDF]

open access: yesE3S Web of Conferences, 2019
Pore gas pressure in soil is an important parameter in many geoscience applications such as evaluating the effects of trapped pore gas pressure on water infiltration through soil mass, optimizing the design of gas extraction wells in landfills and ...
Chen Rui   +3 more
doaj   +1 more source

Coupling effects of bidirectional cyclic loading and loading frequency on pore water pressure of saturated soft clay

open access: yesYantu gongcheng xuebao, 2017
A series of undrained cyclic tests with variable confining pressures are conducted on Ningbo saturated soft clay by using the GDS cyclic triaxial system. In this study, the coupling effects of cyclic deviatoric stress and cyclic confining pressure on the
HUANG Jue-hao 1, 2, CHEN Jian 1, 2, KE Wen-hui 3, ZHONG Yu 4, QIU Yue-feng 1, 2
doaj   +1 more source

Evaluation on Distribution Characteristics of Pore Water Pressure within Saturated Pavement Structure Based on the Proposed Tire-Fluid-Pavement Coupling Model

open access: yesAdvances in Materials Science and Engineering, 2022
To investigate the flow characteristics of pore water in asphalt pavement and the variation law of the pore water pressure under vehicle loading, a novel method based on BA network and quartet structure generation set method was proposed to reconstruct ...
Binshuang Zheng   +6 more
doaj   +1 more source

Optimization of a pressurization methodology for extracting pore-water [PDF]

open access: yesChemosphere, 2005
Sediment toxicity can be assessed by conducting pore-water toxicity assays with standard water column organisms. Several methods have been developed for sampling pore-water. Centrifugation and pressurization methods are recommended when large volumes of pore-water are required to perform toxicity assays.
Lopes, Isabel, Ribeiro, Rui
openaire   +3 more sources

Fatigue crack propagation model of concrete under water pressure based on energy approach

open access: yesShuili Shuiyun Gongcheng Xuebao, 2020
For the coupled action of low frequency fatigue loading and pore water pressure, the energy for fatigue crack growth of concrete is usually divided into two aspects.
ZHANG Qiuyu, WANG Licheng
doaj   +1 more source

Effects of Initial Shear Stress and Vibration Frequency on the Dynamic Pore-Water Pressure of Saturated Sands

open access: yesAdvances in Civil Engineering, 2018
The cyclic triaxial system is used to investigate the effects of confining pressure, initial shear stress, vibration frequency, and dynamic stress on the pore-water pressure characteristics of saturated sand in the Wenchuan area.
Jian Zhang, Jiuting Cao, Sijie Huang
doaj   +1 more source

Pore water pressure change-related characteristic and its critical rupture precursor of rock under triaxial compression

open access: yes工程科学学报, 2015
The change of pore water pressure in saturated rocks was closely associated with its damage deformation. In order to study the precursory characteristics of pore water pressure before the damage of saturated rock, the triaxial compression test and ...
ZHANG Yue-zheng, JI Hong-guang
doaj   +1 more source

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