Applied Sciences MDPI’s Post

Seismic evaluation of Site-City interaction effects between city blocks Frontiers https://lnkd.in/gfqiBQs8

Our new publication in Earthquakes and Structures. "Capacity-spectrum push-over analysis of rock-lining interaction model for seismic evaluation of tunnels.", Vol. 26, No. 5 (2024) 327-336. https://lnkd.in/daR3MeUe #earthquake #earthquakespectrum #nonlinear #nonlinearstaticanalysis #rock #seismic #seismicperformance #tunnel #tunnelengineering #soilmechanics #engineering #civilengineering #transportation #transportationengineering

The seismic response of subway station structures is closely related to the surrounding soil site. In this study by Yan et al. (2024), published in Underground Space Journal, centrifuge shaking table tests are designed and carried out for subway station structures at three typical soft soil sites (all-clay site, liquefiable interlayer site, and fully liquefiable site). The seismic response patterns and the effects of site specificity on the seismic response of the structures are analyzed. The study can be accessed here: https://lnkd.in/g7nQd3Ny #undergroundengineering #seismicresponse #earthquakeengineering #centrifugemodelling #civilengineering

Hi there, Based on your experience, what is the commonly accepted standard distance or spacing between twin tunnels, and how do practical considerations or specific geological conditions influence any variations from this standard?

LAIBIN, https://lnkd.in/gsMWdrnA demonstrates building responses to earthquakes with three main scenarios: 1️⃣ Base Isolation: Isolators decouple the superstructure from ground motion, drastically lowering seismic force transmission and resonance effects. 2️⃣ Seismic Dampers: These devices dissipate vibrational energy, reducing inter-story drift and structural stress. 3️⃣ No Seismic Technology: Buildings are rigidly connected to the foundation, fully absorbing seismic energy, resulting in significant structural deformation and potential collapse. These comparisons highlight the critical role of seismic protection in structural integrity during seismic events. Check #mehrtashsoltani for more!

How can advanced seismic isolation technologies, when combined with precise dynamic analysis and retrofitting techniques, reduce the risk of seismic pounding between structures in densely built earthquake-prone areas, and what are the potential challenges in their implementation?

seismic Survey

Seismic surveys are a way to probe beneath the surface to "see" underlying features that make up the underground structure of a prospect. photo reference: https://lnkd.in/gawjSdXG

"(A) Strike-oriented seismic section illustrating a close-up view of the studied channels (C2 in Fig. 5) and their associated seismic facies 1 and 2. Three types of seismic-reflection terminations are shown. (B) Schematic diagram illustrating cross-sectional view of the structure of bottom current-induced helical flow circulation in the studied channels. CCS = channel-complex set; SGF = sediment gravity flow." Source: https://lnkd.in/dP7hnhpU