New classification of soils by seismic properties for the building code in Uzbekistan

ABSTRACT

The accurate assessment of soil conditions is crucial for ensuring the seismic safety of buildings and structures. The existing classification of soils in the building code of Uzbekistan has several drawbacks that affect the accuracy of the input parameters of soil properties, the determination of the seismic intensity of the ground, and the underestimation of external environmental factors that affect seismic intensity. In response to these shortcomings, this paper presents the results of long-term engineering geological, macroseismic, and geophysical studies conducted to assess the influence of ground conditions on seismic intensity parameters. Based on the findings, a new classification of soils according to seismic properties is proposed. The classification system considers the unique characteristics of each soil type and provides a more accurate representation of their seismic properties. The proposed classification system is expected to provide valuable insights for seismic hazard assessment and earthquake-resistant design of structures.

KEYWORDS:

• Soil conditions
• seismic intensity
• seismic intensity increments
• geotechnical investigation studies
• macroseismic studies
• classification of soils

CRediT authorship contribution statement

Ismailov Vakhitkhan Alikhanovich: Conceptualisation, Methodology, Formal analysis, Writing – review & editing, Visualisation, Yodgorov Sharofiddin Ismatullayevich: Conceptualisation, Methodology, Software, Writing – review & editing, Khusomiddinov Akhror Sabriddinovich: Conceptualisation, Methodology, Software, Writing – review & editing. Eldor Maxmadiyorovich Yadigarov: Conceptualisation, Software, Investigation, Writing – review & editing, Visualisation, Allayev Sherzod Botirovich: Conceptualisation, Methodology, Software, Writing – review & editing, Bekzod Uktamovich Aktamov: Conceptualisation, Software, Investigation, Writing – review & editing, Visualization