Seismic Wave - an overview | ScienceDirect Topics
Seismic wave is one common infrasonic wave containing substantial energy and propagating in the earth’s crust. The acoustic wave that is audible is the sonic wave. In nature, the sounds of wind flows and raindrops are common sonic energy sources.
Lotus leaf-inspired triboelectric sensor for detecting seismic ...
Digital image showing the EW-TENG working as seismic wave detector for better earthquake warning (a, b). Workflow of the earthquake warning system (c). Real-time signal of the EW-TENG applied to monitor the vibration (d). Experimental setting …
Seismic wave propagation effects on buried segmented pipelines
2015年5月1日 · The seismic wave is consistent with the surface waves recorded during the 1985 Michoacan earthquake in Mexico City [4]. The pipeline burial depth is 1 m to pipe crown. The surrounding soil is cohesionless backfill with a unit weight of 18.9 kN/m 3 and frictional angle of 35°. The soil-pipe interface frictional angle is assumed as 30°.
Seismic wave amplification by topographic features: A parametric …
2017年1月1日 · Despite the ever increasing adoption of wave motion simulations for assessing seismic hazard, most assessment/simulations are still based on a flat surface earth model. The purpose of this paper is to quantify the effect of topographic irregularities on the ground motion and local site response by means of parametric investigations in the ...
Can the seismic wave attenuation characteristics of various soils be ...
2024年2月1日 · Seismic wave attenuation is a crucial and extensively researched topic within fields such as geophysics and geotechnical engineering. During the propagation of seismic waves, microstructures within the medium, such as pores and cracks, play a significant role in causing attenuation.
Seismic wave passage effect on dynamic response of submerged …
2010年1月1日 · Seismic wave goes from the left end to the right end in the model (See Fig. 2), which means the wave is taken as shear wave and only its horizontal component is considered. A 50-second-long El Centro earthquake time history record (Fig. 3) of acceleration is used as input excitation, with PGA being 0.32g.
Seismic wave propagation through an in-situ stressed rock mass
2015年10月1日 · For a seismic wave with a small frequency (e.g. f 0 ≤ 30.9 Hz), the wave transmission coefficient remains constant with the increasing in-situ stress. In that case, most parts of the seismic wave can be transmitted and the rock mass behaves as an intact rock, so the effect of in-situ stress can be neglected.
Emergence of seismic metamaterials: Current state and future ...
2020年1月9日 · For seismic wave applications, if one would like to achieve a Metacity cloak self-protecting its center from surface seismic waves with trajectories as in Fig. 13 (B), the urban map should be planed with the soil density and building heights to achieve the required profile for β …
Seismic wave speed structure of the Ontong Java Plateau
2015年6月15日 · The resulting seismic wave speed structure is plotted in Fig. 5 as absolute seismic shear wave speed (V s) in km/s. At shallow depths (<30 km, Fig. 5 ) seismic wave speed structure is similar to Richardson et al. (2000) ; a broad low wave speed region in the south–southwest of the plateau corresponding to a thickened crust beneath the high ...
Wave propagation across fluid-solid interfaces with LBM-LSM …
2024年10月1日 · The energy decay or dissipation is directly related to the magnitude of the LBM relaxation time and the coupling strategy of the fluid-solid interface. This will provide a novel numerical simulation tool for the seismic wave propagation phenomenon in fluid-solid coupled media models (Adler and Pazdniakou, 2018; Ding et al., 2018, 2021).