Results 41 to 50 of about 2,946 (263)
上海师范大学学报. 自然科学版By adopting seismic isolation measures, the seismic isolation effect of high-rise structures was often unsatisfactory due to factors such as poor tensile strength of isolation bearings and relatively long natural vibration period of the seismic structure.
ZHAO Shifeng
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Performance Evaluation of Seismic Isolation System by Installation Location in Lighthouse Structures
Shock and Vibration, 2018 The purpose of this study is to evaluate the applicability of seismic isolation devices for marine accidents under seismic loads. The lighthouse structure is a very important facility when the ship approaches the port.
Moo-Won Hur, Tae-Won Park
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Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
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Deep Underground Science and Engineering, EarlyView.The tensile strength of granite, a proposed host for nuclear waste, degrades severely above 400°C. We link this to specific microcracking patterns captured by acoustic emission, establishing a scientific basis for assessing repository safety under thermal load.
Wei Zeng +7 more
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Yantu gongcheng xuebaoNear-fault ground motions exhibit long-period velocity pulses and large-amplitude vertical components, obviously increasing structural damage. A seismic metamaterial composite foundation (SMCF) is proposed and investigated to achieve simultaneous ...
ZHANG Mingkai 1, 3, MENG Sibo 1, LIU Zhongxian 1, 2, 3, SHI Yundong 2, 3
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Deep Underground Science and Engineering, EarlyView.This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang +6 more
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World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin
Deep Underground Science and Engineering, EarlyView.The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan +4 more
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Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
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Heritage ScienceIn this study, the seismic performance of an ancient pagoda with significant historical and cultural values in China is upgraded by using overall friction pendulum bearing (OFPB) seismic isolation technology, This technique can be used to isolate the ...
Qing He +4 more
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Large strain nonlinear model of lead rubber bearings for beyond design basis earthquakes
Nuclear Engineering and Technology, 2019 Studies on the application of the lead rubber bearing (LRB) isolation system to nuclear power plants are being carried out as one of the measures to improve seismic performance.
Seunghyun Eem, Daegi Hahm
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