Results 11 to 20 of about 134,743 (297)

Experimental study on the shear failure of layered rock bridges

Frontiers in Earth Science, 2023
The structural face of rock plays a decisive role in the stability of geotechnical engineering, and the mechanism of failure destabilization of layered rock masses is still unclear.
Jianxin Yu, Jianxin Yu, Zhibin Zhou, Huanchun Liu, Lianhao Zhou, Zhenzhen Li, Long Cheng, Long Cheng   +7 more
doaj   +1 more source

Earthquake Dynamic Failure Mechanism of Dangerous Rock Based on Dynamics and PFC3D

Frontiers in Earth Science, 2021
The dynamic failure mechanism of horizontally layered dangerous rock during earthquakes is complex and only few studies have addressed the combination of particle flow code (PFC) meso-level failure mechanism and mechanical analysis.
Yun Tian, Yong Wu, Hongtao Li, Bangzheng Ren, Hao Wang   +4 more
doaj   +1 more source

Development of Transversely Isotropic Elastoplastic Constitutive Model in FLAC3D and Its Application in Tunnel Engineering

Geofluids, 2022
The obvious anisotropy of layered rock mass prevents the built-in constitutive model of commercial simulation software from accurately describing the elastoplastic behavior of the rock mass.
Haoran Li, Yajun Zhang, Hongwu Yin, Xinlei Wang, Weigang Zhao, Wenjiang Li   +5 more
doaj   +1 more source

Stability Analysis on the Steeply-Inclined Small-Angle Layered Surrounding Rock Masses at the Upstream High Sidewall of a Large-Span Cavern

Frontiers in Earth Science, 2022
The underground powerhouse of China’s Wudongde hydropower station is one of the world’s underground powerhouses with the largest span and height. Because the underground powerhouse is all located in steeply-inclined layered rock masses, and the bedding ...
Chong-Lin Jian, Ding-Ping Xu, Yang-Yi Zhou, Dong-Fang Chen, Shao-Wu Zhou, Lian-Xing Hu, Chong Wu, Sen-Lin Jiang   +7 more
doaj   +1 more source

Dike propagation through layered rocks [PDF]

Journal of Geophysical Research: Solid Earth, 2009
Dike penetration through a succession of upper crustal layers with different densities is studied with a new numerical code. For an individual layer to significantly affect dike ascent, its thickness must be of order 1 when scaled to the characteristic length‐scale for the inflated nose region that develops below the dike tip.
Taisne, B., Jaupart, C.
openaire   +3 more sources

Trace element and isotope constraints on crustal anatexis by upwelling mantle melts in the North Atlantic Igneous Province: an example form the Isle of Rum, NW Scotland [PDF]

, 2009
Sr and Nd isotope ratios, together with lithophile trace elements, have been measured in a representative set of igneous rocks and Lewisian gneisses from the Isle of Rum in order to unravel the petrogenesis of the felsic rocks that erupted in the early ...
Ellam, R.M., Emeleus, C.H., Hertogen, J., Meyer, R., Nicoll, G.R., Troll, V.R.   +5 more
core   +1 more source

Теплофизические модели слоисто-неоднородных горных массивов [PDF]

, 2009
Стисло розглянуто математичні моделі процесів переносу тепла в шаруватонеоднорідних гірничих масивах. Запропоновано загальний метод моделювання теплопереносу в шаруватих системах різної геометрії.
Cornelissen, L.A.M.H., de Boer-Luijtze, E.A., de Haan, C.A.M., de Leeuw, O.S., de Vries, R.P., Dep Infectieziekten Immunologie, Klos, H.C., Moormann, R.J.M., Rigter, A., Rottier, P.J.M., Strategic Infection Biology, Tacken, M.G., van Zoelen-Bos, D.   +12 more
core   +2 more sources

Substantial bulk photovoltaic effect enhancement via nanolayering. [PDF]

, 2016
Spontaneous polarization and inversion symmetry breaking in ferroelectric materials lead to their use as photovoltaic devices. However, further advancement of their applications are hindered by the paucity of ways of reducing bandgaps and enhancing ...
Grinberg, Ilya, Rappe, Andrew M, Wang, Fenggong, Young, Steve M, Zheng, Fan   +4 more
core   +1 more source

Seismic Wave Propagation Characteristics and Their Effects on the Dynamic Response of Layered Rock Sites

Applied Sciences, 2022
To investigate the seismic response of layered rock sites, a multidomain analysis method was proposed. Three finite element models with infinite element boundaries for layered sites were analysed.
Lihu Dong, Danqing Song, Guangwei Liu
doaj   +1 more source

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

Energies, 2023
Firstly, the experimental test of blasting vibration was carried out to study the propagation characteristics of the peak particle velocity (PPV) and dominant frequency (DF) of the blasting vibration of layered rock mass under high-pressure gas impact ...
Haixia Wei, Dongbing Li, Jie Zhu, Xiaolin Yang, Huaibao Chu   +4 more
doaj   +1 more source