Geophysical Monitoring of Blast-induced Liquefaction at the Mirabello (NE Italy) Test Site
| Autor: | Cesare Comina, Sara Amoroso, Valeria Marangoni, Federico Passeri, Sebastiano Foti |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
Test site 0211 other engineering and technologies Liquefaction 02 engineering and technology Blast-Test 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences In situ test Geophysics Liquefaction Blast-Test Geophysics In situ test Seismology Geology 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Politecnico di Torino-IRIS |
| ISSN: | 1943-2658 1083-1363 |
| DOI: | 10.2113/jeeg23.3.319 |
| Popis: | A blast-induced liquefaction test was conducted in the surroundings of Mirabello (NE Italy), where extensive liquefaction phenomena were observed after the 2012 Emilia earthquake. This experiment is the first blast-induced liquefaction test carried out in Italy. Several geophysical investigations were performed at the site to define initial soil condition and to evaluate the variations of the geophysical parameters over time. Specifically compressional ( VP) and shear ( VS) wave velocities were measured using both invasive (down-hole) and non-invasive (surface wave) tests. Electric Resistivity Tomography (ERT) tests were also carried out. Tests results before and after the blast-induced liquefaction are here presented and discussed with respect to the observed liquefaction effects. The evolution of measured geophysical parameters suggests that the soil modifications due to blasting ( i.e., changes in porosity and soil structure) can be imaged with the adopted approaches. |
| Databáze: | OpenAIRE |
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