Comparative Analysis of Dynamic Methods for Earthwork Controlling

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Abstract

Dynamic methods are adopted in numerous civil engineering sections. Especially evaluation of the earthwork quality can be speed up using these methods. The results of the parallel measurements of selected testing devices for determining the quality of soil compaction were used for comparative analysis. The correlations between values obtained from various apparatuses were derived to evaluate the usability of the devices for tested type of soil. Test field represented soft subsoil of the road embankment consisted from low plasticity clay. Correlations show that examined apparatuses are suitable for examination of compaction level of fine-grained soils with consideration of limit conditions of used equipment. Applied methods are quick and results can be obtained immediately after measurement, and the methods are thus suitable in cases when construction works have to be performed in a short period of time. Generally, both Humboldt GeoGauge™ and Clegg Impact Soil Tester can substitute the LDD test in terms of the earthworks assessment, however, limit conditions of apparatuses given by the manufacturers need to be taken into account to achieve results with a required accuracy. Mentioned methods are based on the dynamic effect of the testing equipment on the soil layer, so results have to be interpreted carefully considering the type and physical state of tested soil.

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APA

Vlcek, J., Vondráčková, T., Plachý, J., Nývlt, V., & Kučerka, D. (2016). Comparative Analysis of Dynamic Methods for Earthwork Controlling. In Procedia Engineering (Vol. 161, pp. 483–488). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2016.08.667

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