Year 2017, Volume 2, Issue 3
| Year : | 2017 |
| Volume : | 2 |
| Issue : | 3 |
| Authors : | Eugeniusz ZAWISZA, Andrzej GRUCHOT |
| Title : | A GEOTECHNICAL ASSESSMENT OF USABILITY OF A ROCK-SOIL MIXTURE FOR EARTH STRUCTURES |
| Abstract : | The subject-matter of the work is a mixture of rock and soil from the Lafarge Dubie mine in Rudawa, southern Poland. The conducted tests aimed at the determination of the geotechnical characteristics of this mixture and the evaluation of its suitability for the construction of earth embankments, in particular road ones. The range of the tests comprised determination of parameters characterising physical properties, such as granulometric composition, natural moisture content, density of solid particles, optimum moisture content and maximum dry density of solid particles, as well as mechanical ones, like shear strength. The obtained results show that the tested mixture is suitable for the construction of road embankments, since as coarse-grained soil, it has a high value of the uniformity coefficient (Cu = 1913). Therefore, this is very well graded soil, which provides a good compaction when it is built into the embankment. The natural moisture content (on average wn = 9.5%) is close to the optimum one (wopt = 8.5%). The maximum dry density of solid particles (ds = 2.16 gcm-3) is much higher than the minimum required (d ≥ 1.6 gcm-3). The values of the angle of internal friction (on average = 36) and cohesion (c = 42 kPa) indicate great shear strength, therefore this soil can be subjected to considerable mechanical stresses. |
| For citation : | Zawisza, E., Gruchot, A. (2017). A geotechnical assessment of usability of a rock-soil mixture for earth structures. AGROFOR International Journal, Volume 2. Issue No. 3. pp. 92-98. DOI: 10.7251/ AGRENG1703092Z |
| Keywords : | earth structures, rock-soil mixture, geotechnical properties, road embankment |
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ISSN 2490-3434 (Printed)
ISSN 2490-3442 (Online)
ISSN 2490-3442 (Online)
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