Results 31 to 40 of about 33,409 (257)

Optimal sensor placement in hydropower house based on improved triaxial effective independence method

Water Science and Engineering, 2012
The capacity and size of hydro-generator units are increasing with the rapid development of hydroelectric enterprises, and the vibration of the powerhouse structure has increasingly become a major problem.
Ji-jian Lian, Long-jun He, Hai-jun Wang
doaj   +1 more source

Dynamic Properties of Granulated Rubber Using Different Laboratory Tests

Buildings, 2021
Due to the socio-environmental hazards arising from the stockpiling of disposed scrap tires, the necessity to utilize such material in civil construction and other applications is deemed mandatory.
Ahmed Moussa, Hany El Naggar, Abouzar Sadrekarimi   +2 more
doaj   +1 more source

Dynamic Deformation Characteristics of Joomunjin Standard Sand Using Cyclic Triaxial Test [PDF]

Journal of the Korean Geotechnical Society, 2012
In this study, the modified cyclic triaxial tests with Joomunjin standard sand are performed for dynamic deformation characteristics, such as Young`s moduli and damping ratio. The cyclic triaxial test is equipped with Local Displacement Transducer (LDT) on the outside of a cell which has a range from to of shear strains, (%), instead of conventional ...
You-Seong Kim, Hyoung-Woo Ko, Jae-Hong Kim, Jin-Gwang Lee   +3 more
openaire   +1 more source

Permeability evolution during progressive development of deformation bands in porous sandstones [PDF]

, 2003
[1] Triaxial deformation experiments were carried out on large (0.1 m) diameter cores of a porous sandstone in order to investigate the evolution of bulk sample permeability as a function of axial strain and effective confining pressure.
Antonellini, Antonellini, Aydin, Aydin, B. T. Ngwenya, Beach, Bruno, Caine, Crawford, Evans, Fowles, Gibson, Grueschow, Hippler, I. G. Main, Jamison, Knipe, Knipe, Knott, Main, Main, Main, Mair, Mair, Manzocchi, Menendez, Moore, Ngwenya, Ngwenya, Ngwenya, O. Kwon, Ogilvie, Popp, Ramsay, Rhett, Rojstaczer, Rudnicki, S. C. Elphick, Scholz, Scott, Shipton, Sibson, Sverdrup, Taylor, Tuefel, Underhill, Wong, Zang, Zhang, Zhu, Zhu, Zoback   +51 more
core   +3 more sources

Strain rate and temperature dependence of Omori law scaling constants of AE data: Implications for earthquake foreshock-aftershock sequences [PDF]

, 2004
Little is known about the temperature and strain rate dependence of acoustic emission AE activity (AE). Hence, we carried out a preliminary series of flow-through triaxial compression tests on porous sandstones at different temperatures and strain rates.
Aki, Costin, Frohlich, Helmstetter, Hirata, Hirata, Ira O. Ojala, Liakopoulou-Morris, Lockner, Lockner, Lockner, Main, Main, Meredith, Mogi, Mogi, Ojala, Ojala, Sano, Scholz, Utsu, Vinciguerra, Von Seggern, Yabe, Yanagidani   +24 more
core   +1 more source

Laboratory Testing to Research the Micro-Structure and Dynamic Characteristics of Frozen–Thawed Marine Soft Soil

Journal of Marine Science and Engineering, 2019
The use of artificial freezing can change the mechanical properties of marine clay. In the construction of cross passages in metro tunnels in which the artificial ground freezing (AGF) method is applied, freeze–thaw circulation and cyclic loading ...
Zhi Ding, Bowen Kong, Xinjiang Wei, Mengya Zhang, Baolong Xu, Fangjie Zhao   +5 more
doaj   +1 more source

Engineering properties of basalt aggregates in terms of use in granular layers of flexible pavements

Case Studies in Construction Materials, 2022
In this study, it is aimed to increase the level of knowledge about the physical and mechanical properties of basalt aggregates which is produced as crushed-stone in quarries. For this purpose, an experimental study was carried out on aggregates and test
Altan Yılmaz
doaj   +1 more source

Study on the Permanent Deformation and Dynamic Stress–Strain of Coarse-Grained Subgrade Filler under Cyclic Loading

Buildings
Using coal gangue as a subgrade filler will produce good benefits, and its application prospects are very broad. It is of great engineering and scientific value to study the improvement method and dynamic characteristics of coal gangue subgrade filler ...
Hemeng Zhang, Junjun Lei, Qiushuang Wu, Xun Tian   +3 more
doaj   +1 more source

Mechanical and Acoustic Emission Characteristics of Sandstone through Triaxial Unloading Test after Cyclic Freezing-Thawing Treatment

Advances in Civil Engineering, 2020
The dynamic failure behaviour of tunneling rock in the cold region where freezing-thawing frequently occurs is unclear. This study aimed to test and understand the damage characteristics of tunneling sandstone samples in the cold region via triaxial ...
Xiaohui Ni, Xiaomei Shen, Zhende Zhu
doaj   +1 more source

Correction of dynamic Brazilian disc tensile strength of rocks under preloading conditions considering the overload phenomenon and invoking the Griffith criterion

Journal of Rock Mechanics and Geotechnical Engineering, 2023
Dynamic tensile failure is a common phenomenon in deep rock practices, and thus accurately evaluating the dynamic tensile responses of rocks under triaxial pressures is of great significance.
Kaiwen Xia, Yuchao Yu, Bangbiao Wu, Wei Yao   +3 more
doaj   +1 more source