Abstract
Serious errors in assigning void ratio to a laboratory sand specimen can occur due to poor resolutions in the measurement of its physical dimensions. The extent of these errors for given resolutions in the measurements of specimen diameter and (or) height is discussed, and their implications in estimates of undrained residual strength are pointed out in the steady-state analysis of sand structures that could be susceptible to flow slides. Alternatives for a more confident and consistent assignment of void ratio are proposed that circumvent the generally low resolutions in measurements of specimen diameter and height and utilize only the high-resolution mass measurements. Key words: measurement resolution, void ratio error, sand, liquefaction, residual strength, flow slide.
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