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Coupled hydro-mechanical analysis of expansive soils: Parametric identification and calibration

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Academic year: 2021

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Table 1: Geotechnical properties of soil tested Properties Value Bentonite Specific gravity 2.8 Liquid limit (%) 180 Plastic limit (%) 43-45 Shrinkage limit (%) 18-21 Plasticity index (%) 135-137 Sand Specific gravity 2.65 D10 0.25 D30 0.40 D60 0.70 Bentonit
Figure 1: Constructional details of the newly designed column-type experimental set-up, (a) and (b) vertical and horizontal sectional views, and (c) a photograph of the device.
Figure 2: Lateral load cell installation details, (a) load cell along with accessories and (b) installation at measurement sections X1, X2 and X3 along the height of soil sample.
Figure 3: Sample preparation using static uniaxial compaction, (a) compacted blocks and compacting mould, (b) seating space for KYOWA pressure transducer and (c) average mean density.
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