Assessment of the liquefaction susceptibility of dispersive soils during strong earthquakes under laboratory and field conditions (case study of the city of Termez)
2026· E3S Web of Conferences· 0 citations· 4 references
Abstract
This paper assesses the liquefaction susceptibility of dispersive soils in the city of Termez, southern Uzbekistan, an area subject to transit seismic effects from several surrounding seismogenic zones with magnitudes up to Mmax = 7.5. Engineering-geological investigations to a depth of 50 m identified three engineering-geological elements, dominated by loess-like loams and water-saturated sands, with groundwater encountered at 4.0–4.8 m depth. Vertical electrical sounding (VES) at seven points across the city characterized the depth, structure, and saturation state of the soil layers and delineated zones of shallow and deep groundwater occurrence. The results show that design methods for above-ground structures are well developed, while methods for calculating foundations and bases under seismic loading remain comparatively underdeveloped, relying mainly on static assumptions. The study highlights insufficient soil strength, additional moistening, and dynamic settlement as key soil-related factors contributing to earthquake damage, underscoring the need for improved liquefaction-susceptibility assessment methods for the region.
Seismic ground hazard in the loess-covered territories of Uzbekistan is governed by two water-controlled mechanisms: collapse of unsaturated loessial soils and liquefaction of the same soils once saturated. This paper synthesises engineering-geological investigation reports completed in 2023–2025 for six construction s...
F. Yuldashev, Sharafitdin Yuldashev, A. Abdunazarov et al.· E3S Web of Conferences· 0 citations
Rising groundwater in urbanised territories of Uzbekistan changes the seismic behaviour of loessial soils from collapse-dominated to liquefaction-dominated, yet liquefaction hazard is usually assessed only for the groundwater position observed during the site investigation. This paper quantifies the effect of the forec...
F. Yuldashev, Sharafitdin Yuldashev, M. Boytemirov et al.· E3S Web of Conferences· 0 citations
Earthquake-induced soil liquefaction poses a severe threat to the structural safety of underground infrastructure. This paper presents a shaking table model test conducted on sand sites, where two site models—namely, uniform saturated sand and layered dry–saturated sand—are designed to systematically analyze the influe...
Yixiong Gan, Ye Cheng, Jinghu Yang et al.· Engineer· 0 citations
Groundwater conditions can alter the effective stress state and mass characteristics of foundation soils and thereby influence seismic soil–structure interaction. This study evaluated the effect of groundwater level (GWL) on the seismic response of a multistory building–soil system using three-dimensional finite-elemen...
Sharafitdin Yuldashev, M. Boytemirov, A. Abdunazarov et al.· Science and innovation· 0 citations
Lombok is one of the earthquake-prone areas in Indonesia that is highly exposed to secondary hazards such as liquefaction. This research presents a screening-level liquefaction susceptibility assessment for the central part of West Lombok by integrating two main controlling parameters, namely ground shear strain (GSS)...
Ilham Ilham, Nevi Ernita, Ichwan Arief Ramdhani et al.· Journal of Geoscience, Engin...· 0 citations
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