application of in situ direct shear device to shear strength measurement of rockfill materials

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ID: 179270
2009
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Abstract
A simplified in situ direct shear test (DST) was developed for measuring the shear strength of soils in fields. In this test, a latticed shearing frame replaces the upper half of the shear box used in the conventional direct shear box test. The latticed shearing frame is directly embedded in the ground to be tested after a construction process and is pulled with a flexible chain while a constant dead load is applied to the sample in the shearing frame. This simplified in situ DST has been validated by comparing its results with those of triaxial tests on samples with parallel gradations under normal stresses less than 100 kPa. In this study, the DST was further validated by carrying out tests on samples with the same gradations, rather than on samples with parallel gradations, under normal stresses up to 880 kPa. In addition, the DST was performed inside fills in two applications.
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liu2009waterapplication Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Si-hong Liu
Journal The Journal of emergency medicine
Year 2009
DOI
10.3882/j.issn.1674-2370.2009.03.005
URL
http://www.sciencedirect.com/science/article/pii/S1674237015300740
Keywords
shear strength in situ lake

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