European soil classification system for engineering purposes

Abstract

This paper proposes the new European Soil Classification System (ESCS) for engineering purposes which uses soil description and symbols according to European standard EN ISO 14688-.1, and which 34 countries are bound to implement, as CEN members. ESCS is developed on principles for soil classification according to the European standard EN ISO 14688-.2, and it generally complies with guidelines defined by the USCS soil classification system in accordance with the US standard ASTM D 2487. The procedure for the use of proposed classification, and examples of comparison with the USCS classification system, are presented. Key words:soil classification, engineering, standard, particle size distribution, plasticity Prethodno priopćenje Meho Saša Kovačević, Danijela Jurić-Kaćunić Europska klasifikacija tla za inženjerske potrebe U radu se predlaže nova europska klasifikacija tla (ESCS) za inženjerske potrebe koja koristi opis i simbole označavanja tla prema europskoj normi EN ISO 14688-1, a koju su se, kao članice CEN-a, obvezale implementirati 34 europske zemlje. ESCS je razvijena na načelima klasifikacije tla prema europskoj normi EN ISO 14688-2 i okvirno slijedi smjernice definirane USCS klasifikacijom prema američkoj normi ASTM D 2487. Prikazana je procedura za provedbu predložene klasifikacije i dani su primjeri usporedbe rezultata klasificiranja tla sa USCS klasifikacijom.

Performance assessment and strengthening proposal of an existing building

“…An average shear wave velocity in the upper 30 m of the depth of class D soil ranges between 180 and 360 and between 183 and 366 m/s according to TBEC-2018 and ASCE 7-16, respectively. In addition, the soil category according to EN regulations is available in the literature [30]. Design spectrum parameters determined by Eqs.…”