Seismic site response estimation for microzonation studies promoting the resilience of urban centers
• 大类 : 地学 - 3区
• 小类 : 工程：地质 - 2区
• 小类 : 地球科学综合 - 3区
Providing realistic and robust ground motion estimates for future earthquakes is one of the most challenging problems in seismology and earthquake engineering. In particular, the influence of local site conditions has been shown to be particularly important for quantifying the level of ground motion. Significant differences in the level of ground motion can occur even at nearby sites (within tens or hundreds of meters) as a result of seismic impedance contrasts between soil strata and the bedrock, buried basin or complex geometries of the underground formations, and the topographic effects combined with the seismic behavior of out-of-ground structures. These effects can strongly affect ground motion amplitude, duration and frequency content, producing highly variable ground motions. Quantitative and reliable assessment of these phenomena is required for seismic hazard assessment and risk mitigation. Although site effects have been deeply studied over past decades on various scales, it still remains an open question when it comes to incorporating site effect considerations for planning purposes of homogeneous areas (microzonation studies). Particularly, this holds for complex environments with large lateral variations (2D/3D site effects). The purpose of this special issue is to publish papers regarding recent enhancement on the (1) local site effects estimates and measurements, and (2) their use in microzonation studies for improving the resilience of urban centers. Contributions in this field by both scientists and practitioners are warmly welcomed.
Papers on topics related to local site effects and their use in microzonation studies.
Site effects (due to 1D, 2D and 3D wave interference phenomena) and microzonation activities (in terms of ground motion, slope instability, soil liquefaction) for long-term urban planning
Multi-disciplinary investigations, including geophysical, surface, subsurface, field, and laboratory testing
Evaluation of ground motion amplification from ambient noise and earthquake recordings (HVSR, Reference Site Spectral Ratios, Receiver-Function..)