Seismic characterization of an abandoned mine site

• Autorzy: Arosio D. , Longoni L. , Papini M. , Zanzi L.
• Języki publikacji: EN

Abstrakty

EN

The near-surface rock structure that covers an abandoned marl mine nearby the village of Montevecchia (Italy) was investigated through a combination of seismic surveys. The methods selected for these investigations were refraction seismics and multichannel analysis of surface waves (MASW). A sort of transillumination experiment was also attempted. All the methods were successful and gave complementary information. Refraction seismics was used to characterize the upper low velocity layer and the second layer of the near-surface structure. The MASW method was necessary to assess the existence of a velocity inversion revealing the presence of a low velocity layer between the 2nd layer and a 4th high velocity layer covering the upper mine gallery. The transillumination experiment validated the presence of the 4th layer and gave an estimate of the average velocity that represents a lower boundary for the P-wave velocity within this layer. Both the refraction and transillumination data were analysed to derive average estimates of attenuation level and rock quality factor.

Słowa kluczowe

EN

refraction seismics; MASW; abandoned mine

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2013
• Tom: Vol. 61, no. 3
• Strony: 611--623
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Arosio D.

• Department of Structural Engineering, Politecnico di Milano, Milan, Italy

autor

Longoni L.

• Department of Environmental, Hydraulic, Infrastructures and Surveying Engineering, Politecnico di Milano, Milan, Italy

autor

Papini M.

• Department of Environmental, Hydraulic, Infrastructures and Surveying Engineering, Politecnico di Milano, Milan, Italy

autor

Zanzi L.

• Department of Structural Engineering, Politecnico di Milano, Milan, Italy

Bibliografia

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• Socco, L.V., and C. Strobbia (2004), Surface-wave method for near-surface characterization: a tutorial, Near Surf. Geophys. 2, 4, 165-185, DOI: 10.3997/1873-0604.2004015.
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