Results 61 to 70 of about 1,753,793 (305)

Review and prospects of shear test of bolted rock joints

Deep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren, Fan Yang, Manchao He, Yong Yuan, Zhigang Tao   +4 more
wiley   +1 more source

Generalized Matsuoka–Nakai criterion considering hydrostatic pressure dependence in the brittle–ductile region

Deep Underground Science and Engineering, EarlyView.
Three sets of strength data were selected, including hydrostatic pressure independent within the brittle region (HPI‐B), hydrostatic pressure dependent within the brittle region (HPD‐B), and hydrostatic pressure dependent within the brittle–ductile region (HPD‐BD). For HPI type, the failure envelope within the deviatoric plane remains constant.
Jiacun Liu, Junjie Xiao, Dongping Liu, Ying Xu   +3 more
wiley   +1 more source

Mechanism of apparent resistivity changes before the 2024 Wushi MS7.1 earthquake in Xinjiang, China

Geomatics, Natural Hazards & Risk
A MS7.1 earthquake struck Wushi County, Xinjiang, China, on January 23, 2024. There is only one apparent resistivity station (i.e. Keping Station) in operation within 400 km of the earthquake.
Tao Xie, Xinyan Li, Ying Han, Chen Yu, Ye Fan, Qing Ye   +5 more
doaj   +1 more source

Crustal Deformation on the Northeastern Margin of the Tibetan Plateau from Continuous GPS Observations

Remote Sensing, 2018
We installed 10 continuous Global Positioning System (GPS) stations on the northeast margin of the Tibetan Plateau at the end of 2012, in order to qualitatively investigate strain accumulation across the Liupanshan Fault (LPSF).
Xiaoning Su, Lianbi Yao, Weiwei Wu, Guojie Meng, Lina Su, Renwei Xiong, Shunying Hong   +6 more
doaj   +1 more source

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

Deep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei, Maozhen Liu, Jiayi Ha, Linbo Du, Zhi Li, Yuhao Li, Chuangang Fan   +6 more
wiley   +1 more source

Geochemical Characteristics of Thermal Springs and Insights Into the Intersection Between the Xiaojiang Fault and the Red River Fault, Southeastern Tibet Plateau

Geochemistry, Geophysics, Geosystems
During the ongoing uplift and expansion of the southeastern margin of the Tibetan Plateau, the front edge of the Sichuan‐Yunnan rhombic block (SYB) has experienced intense tectonic activity and frequent seismicity.
Weiye Shao, Zhaofei Liu, Ying Li, Zhi Chen, Chang Lu, Ciping Zhao, Yun Wang, Qilin Li, Zihan Gao, Yili Luo, Hua Ran, Shaohui Fan   +11 more
doaj   +1 more source

Linear Perturbations of the Bloch Type of Space-Periodic Magnetohydrodynamic Steady States. II. Numerical Results

Russian Journal of Earth Sciences, 2023
We consider Bloch eigenmodes of three linear stability problems: the kinematic dynamo problem, the hydrodynamic and MHD stability problem for steady space-periodic flows and MHD states comprised of randomly generated Fourier coefficients and having energy ...
Chertovskih R, Zheligovsky V
doaj   +1 more source

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source

Deep tectonics and seismogenic mechanisms of the seismic source zone of the Jishishan Ms 6.2 earthquake on December 18, 2023, at the northeast margin of the Tibetan Plateau

Earth and Planetary Physics
On December 18, 2023, an Ms 6.2 earthquake occurred in Jishishan, Gansu Province, China. This earthquake happened in the eastern region of the Qilian Orogenic Belt, which is situated at the forefront of the NE margin of the Tibetan Plateau (i.e., Qinghai–
Qiong Wang, ShuYu Li, XinYi Li, Yue Wu, PanPan Zhao, Yuan Gao   +5 more
doaj   +1 more source

Which is heterogeneous, stress or strength? An estimation from high-density seismic observations

Earth, Planets and Space, 2017
Using data from high-density seismic observation networks installed in the western Nagano Prefecture region in Japan, we precisely determined focal mechanisms and estimated the high-resolution stress field at a scale of 1 km.
Yoshihisa Iio, Itaru Yoneda, Masayo Sawada, Tsutomu Miura, Hiroshi Katao, Yoichiro Takada, Kentaro Omura, Shigeki Horiuchi   +7 more
doaj   +1 more source