PROCJENA KRUTOSTI TLA IN-SITU ISPITIVANJIMA I KORELACIJE IZMEĐU vs, NSPT i N10H

Scientific paper - Preliminary note / Short communication

• Title (english): SOIL STIFFNESS EVALUATION BASED ON IN-SITU TESTS AND CORRELATIONS BETWEEN vs, NSPT AND N10H
• Author: Stjepan Strelec
• Author: Mario Gazdek
• Author: Boris Jeđud
• Author's institution: University of Zagreb; Faculty of Geotechnical Engineering; (Department of Geotechnics)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences

Abstract (croatian)

U ovome radu su prikazani rezultati istraživanja tla geofizičkim metodama koje se baziraju na spektralnoj analizi, odnosno disperziji brzine površinskih valova ovisno o frekvenciji. Seizmički presjeci višekanalne analize površinskih valova (Multichannel Analysis of Surface Waves, MASW), odnosno seizmičke sonde spektralne analize površinskih valova (Spectral Analysis of Surface Waves, SASW) uspoređeni su s rezultatima ne-disperzivnih metoda refrakcijske seizmike i bušotinske downhole metode. Radi analize procjene krutosnih svojstava tla izvedenih iz brzine posmičnih valova, provedeni su i standardni geotehnički penetracijski pokusi (Standard Penetration Test, SPT i Dynamic Probe Heavy, DPH). Korelacije brzine posmičnih valova vs i vrijednosti SPT-N i DPH-N pokusa su pokazale visoku pouzdanost procjene krutosti tla iz spektralnih metoda površinskih valova, prema kategorijama Eurokoda 8 (EC8).

Abstract (english)

: In this paper, the results of geophysical surveying methods based on the surface waves are presented. Surface wave velocity dispersion depending on the frequency or spectral analysis was used for subsurface soil properties evaluation. Multichannel analysis of surface waves (MASW) seismic cross sections and spectral analysis of surface waves (SASW) seismic soundings were compared with results of non-dispersive seismic refraction and down-hole methods. In order to analyse the estimated value of soil stiffness derived from the shear wave velocity, geotechnical penetration tests (Standard Penetration Test, SPT and Dynamic Probe Heavy, DPH) were conducted. Statistical correlations of shear wave velocity (vs) and dynamic penetration test blow counts (SPT-N and DPH-N) have revealed high confidence of the estimated soil stiffness based on the surface wave velocity for Eurocode 8 (EC8) ground types.

• Keywords (croatian): vs,30; MASW; SPT; DPH; Eurokod 8
• Keywords (english): vs,30; MASW; SPT; DPH; Eurocode 8
• Language: croatian
• Publication type: Scientific paper - Preliminary note / Short communication
• Publication status: Published
• Peer review: Peer review
• Publication version: Published version
• Journal title: Inženjerstvo okoliša
• Numbering: vol. 1, no. 1, pp. 43-54
• p-ISSN: 1849-4714
• e-ISSN: 1849-5079
• URN:NBN: urn:nbn:hr:130:782091
• Publication: 2014-07-28
• Document URL: http://hrcak.srce.hr/129445
• Type of resource: Text
• Access conditions: Open access
• Created on: 2017-02-09 11:21:06