Results 81 to 90 of about 193,810 (301)
Deep Underground Science and Engineering, EarlyView.This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh +12 more
wiley +1 more source
Seismic reliability assessment of classical columns subjected to near-fault ground motions [PDF]
, 2013 A methodology for the performance-based seismic risk assessment of classical columns is presented. Despite their apparent instability, classical columns are, in general, earthquake resistant, as proven from the fact that many classical monuments have ...
Fragiadakis, Michalis +2 more
core +5 more sources
Deep Underground Science and Engineering, EarlyView.B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza +4 more
wiley +1 more source
Dizhen xuebao目前我国约有数百个井下地震观测台。井下观测可以避免地表噪声干扰和场地效应，填补在高噪声区域获取高精度地震资料的空白。增加井下观测台站可以弥补地表观测能力的不足，使观测台站的布局更加科学合理，从而也为地震学观测研究开辟新途径。井下台网观测波形有利于准确测定地震参数，建立高精度波速模型，探索地震成因，从而推动地震预报工作。唐山强震就发生在低速体与高速体之间，文安地震前波速出现了可信的地震前兆性降低异常。井下地震仪可观测到地表反射波，对研究地壳精细结构和资源评估均有重要意义。井下观测到的震级 ...
Jiren Xu +4 more
doaj +1 more source
Advances in Civil Engineering, 2020 Explosives are the most common seismic source in seismic explorations, whose excitation effect is closely associated with their properties, weight, buried depth, and charging constitution. This study analyzes the influence of seismic source parameters on
Ruohua Qiu +5 more
doaj +1 more source
Subsonic near-surface P-velocity and low S-velocity observations using propagator inversion [PDF]
, 2005 Detailed knowledge of near-surface P- and S-wave velocities is important for processing and interpreting multicomponent land seismic data because (1) the entire wavefield passes through and is influenced by the near-surface soil conditions, (2) both ...
Curtis, A., Trampert, J., van Vossen, R.
core +1 more source
Deep Underground Science and Engineering, EarlyView.This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu +8 more
wiley +1 more source
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
wiley +1 more source
Sučasnì Informacìjnì Tehnologìï u Sferì Bezpeki ta Oboroni, 2019 The problem of humanitarian demining and the possibility of using the principle of action that underlies the non-explosive pulse seismic source for the destruction (disposal) of explosive devices with different target sensors mounted on land or in water ...
Volodymyra Kotsiuruba +3 more
doaj +1 more source
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
wiley +1 more source