ОСНОВЫ БЕЗОПАСНОГО СТРОИТЕЛЬСТВА НА ДИНАМИЧЕСКИ РАЗЖИЖАЕМЫХ ГРУНТАХ РЕСПУБЛИКИ КАЗАХСТАН

Abstract

The paper presents the physical fundamentals of the soil liquefaction mechanism under seismic loading, based on an analysis of global research and best practices. Regions potentially susceptible to soil liquefaction are identified, including those within the Republic of Kazakhstan. The geological conditions of a number of sites in Kazakhstan are analyzed in terms of their similarity to construction conditions in Niigata Prefecture (Japan), where in-situ observations during a destructive earthquake formed the basis for a comprehensive assessment of soil liquefaction.

The principles of theoretical evaluation of liquefaction potential are outlined, along with their modern interpretation in accordance with international standards. The role of Standard Penetration Tests (SPT), Cone Penetration Tests (CPT/CPTu), and the Shear Wave Velocity (Vs) method in the reliable assessment of liquefaction susceptibility is evaluated, including the minimum practical combination of these methods. Methods for ground improvement and types of foundations are recommended to ensure safe construction under conditions of dynamic soil liquefaction.