Get Advances in Unsaturated Soils PDF

By Bernardo Caicedo; Carol Murillo; et al

ISBN-10: 0203771079

ISBN-13: 9780203771075

ISBN-10: 0415620953

ISBN-13: 9780415620956

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Extra resources for Advances in Unsaturated Soils

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A digital micrometer can be used for the measurement of the volume at various stages of drying as shown in Figure 4. , the rings have no bottom). The rings with the soil can be placed onto wax paper and can be dried through evaporation to the atmosphere. The dimensions of the soil specimens are appropriately selected such that cracking of the soil is unlikely to occur during the drying process. 2 cm. The mass and volume of each soil specimen can be measured once or twice per day. Four to six measurements of the diameter and thickness of the specimen were made at differing locations on the specimens.

In particular, the need for a modification to the determination of an appropriate SWCC has arisen in situations where the soil changes volume as soil suction is changed. , left branch in Figure 1). , right branch in Figure 1), blends in well with the procedures that have already been used in engineering practice as well as agriculture-related disciplines. In other words, the existing laboratory test procedures associated with the SWCC would continue to be used; or available data sets used, however, greater care needs to be taken in the interpretation and application of the results in engineering practice.

Water content profiles measured at various times in two layers of recently deposited platinum tailings. indb 12 12/27/2012 4:57:15 PM 5. 6 illustrate the most difficult aspect of measuring evaporation from a soil surface—it is very difficult, in field measurements, to allow for the effects of water moving upwards under a suction or consolidation-induced flow gradient, or downwards under a gravity gradient. 6. The way ahead is by no means clear, but the difficulties associated with applying equation (1) and its derivatives should be noted, and if used, be used with caution.

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Advances in Unsaturated Soils by Bernardo Caicedo; Carol Murillo; et al

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