Results 21 to 30 of about 89,462 (268)

Effect of confining pressure on the degradation of ballast under cyclic loading

Géotechnique, 2005
Traditional railway foundations or substructures have become increasingly overloaded in recent years due to the introduction of faster and heavier trains. A lack of substructure re-engineering has resulted in maintenance cycles becoming more frequent and increasingly expensive.
Indraratna, Buddhima, Lackenby, J., Christie, D.   +2 more
openaire   +3 more sources

Experimental study on the permeability characteristics of laminated shale under cyclic loading

Rock and Soil Mechanics, 2022
It is of great significance for the safe construction of shale gas tunnels to deeply understand the evolution law of permeability of laminated shale with macro fractures under cyclic disturbance.
ZHANG Chuang, REN Song, WU Fei, LIU Jie, ZHOU Xu-hui   +4 more
doaj   +1 more source

Pore-Water Pressure Model for Carbonate Fault Materials Based on Cyclic Triaxial Tests

Frontiers in Earth Science, 2022
Pore-water pressure generation in the saturated carbonate fault zone plays a key role in the initiation of the Daguangbao landslide, which is the largest landslide triggered by the 2008 Wenchuan earthquake in China.
Ling Zhu, Qingwen Yang, Luguang Luo, Luguang Luo, Shenghua Cui   +4 more
doaj   +1 more source

Experimental Investigation on Post-Peak Permeability Evolution Law of Saturated Sandstone under Various Cyclic Loading–Unloading and Confining Pressure

Water, 2022
The permeability evolution law of saturated rock under cyclic loading–unloading after shear yield is an important basis for revealing the water resistance performance and water inrush risk of overlying rock under multiple mining conditions. In this paper,
Liang Chen, Dong-Sheng Zhang, Wei Zhang, Jingna Guo, Nan Yao, Gangwei Fan, Shi-Zhong Zhang, Xu-Feng Wang, Peng Wu   +8 more
semanticscholar   +1 more source

Permeability of the Hydrated Shale under Cyclic Loading and Unloading Conditions

Geofluids, 2020
The hydrated shales under cyclic loading and unloading conditions are common for the shale reservoir development; corresponding mechanical properties and permeability evolution are very significant and should be deeply researched.
Liu Xianshan, Li Man, Xu Ming, Kang Zhiyong   +3 more
doaj   +1 more source

Cyclic behaviours of soft silty clay with long-term traffic loading considering drainage conditions

Frontiers in Built Environment
The traffic loading is a typical cyclic loading with variable confining pressure and always lasts long, and is believed to have a significant effect on the subgrade soil, especially for the subgrade filled with soft clay.
Yexiang Jiang, Ruofei Li, Fengyang Su, Guanyu Chen, Chaobo Xia, Junhao Tong, Tingyu Wu, Tingyu Wu   +7 more
doaj   +1 more source

Dynamic Parameters and Hysteresis Loop Characteristics of Frozen Silt Clay under Different Cyclic Stress Paths

Advances in Materials Science and Engineering, 2021
In cold regions, the long-term stability of engineering facilities is unavoidably influenced by the negative temperature, freeze-thaw process, dry-wet process, and dynamic loading conditions induced by earthquakes and traffic loads.
Furong Liu, Zhiwei Zhou, Wei Ma, Shujuan Zhang, Zhizhong Sun   +4 more
doaj   +1 more source

Experimental study on coupling effects of cyclic confining pressure and intermittent cyclic loading on deformation behavior of saturated soft clay

Yantu gongcheng xuebao
The deformation characteristics of soft clay under intermittent cyclic loading and cyclic confining pressure are studied by conducting two types of cyclic triaxial tests, i.e., continuous cyclic loading and intermittent cyclic loading triaxial tests, and
HUANG Juehao 1, 2, QIU Yuefeng 3, WU Jiaming 4, LI Yinan 5, CHEN Jian 1, 2, FU Xiaodong 1, 2
doaj   +1 more source

A parametric study on cyclic strength of coastal sand of Digha in West Bengal, India

International Journal of Geo-Engineering, 2021
Stress controlled cyclic triaxial tests have been carried out on coastal sand of Digha, West Bengal, India at different frequencies, confining pressures, relative densities and number of loading cycles for determination of influence of these parameters ...
Pinak Ray, Ramendu Bikas Sahu
doaj   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida, Gisela Cristiane Miyamoto, Daniel da Costa Torres, Ian Setubal Reis Chaves, Jonas do Carmo Paschoalin, Braúlio Lima Nascimento, Luciana Dias Chiavegato   +6 more
wiley   +1 more source