Spatial Variability of the Depth of Weathered and Engineering Bedrock using Multichannel Analysis of Surface Wave Method
作者： P. Anbazhagan , T. G. Sitharam
DOI: 10.1007/S00024-009-0450-0
关键词: Borehole 、 Weathering 、 Bedrock 、 Phase velocity 、 Surface wave 、 Geology 、 Mineralogy 、 Spatial variability
摘要: In this paper an attempt has been made to evaluate the spatial variability of depth weathered and engineering bedrock in Bangalore, south India using Multichannel Analysis Surface Wave (MASW) survey. One-dimensional MASW survey carried out at 58 locations shear-wave velocities are measured. Using velocity profiles, rock surface levels determined. Based on literature, 330 ± 30 m/s for or soft 760 60 hard considered. Depths corresponding these ranges evaluated with respect ground contour top have mapped interpolation technique natural neighborhood. The varies from 1 m about 21 m. testing locations, only 42 reached depths which a more than m/s. is data it 50 Further, compared subsurface profile obtained two-dimensional (2-D) 20 few selected available bore logs deep geotechnical boreholes.
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