Abstract and keywords
Abstract (English):
Purpose: To develop a rockfill dam hydraulic calculation method based on the latest research on filtration erosion rate in coarse-grained materials at the contact with surrounding soils as well as the dependence of the geotextile filtration properties in the frozen state on its water loss coefficient. Methods: The erosion rate at the contact of coarse-grained materials with clay soils is proposed to be calculated by the formula developed at the Vedeneev All-Russia Institute of Hydraulic Engineering. The geotextile filtration properties in the frozen state have been tested using the water loss coefficient of these materials. Results: The proposed dependence for calculating the erosion rate of soils at the contact with coarse-grained materials has been obtained specifically for filtration facilities. It is not designed for open flows (in the updated VSN 61-89 Construction Norms, these recommendations remained unchanged); therefore, it provides more substantiated results taking into account soils and coarse-grained material properties. Since filtering embankments are built in the soils prone to climate-induced variability, the geotextile material separating layers should be calculated taking into account the water-loss coefficient that significantly affects their ability to filter, especially in their frozen state. Practical significance: The proposed method of hydraulic and filtration calculation of filtering embankments will allow designing more adequate protective measures for eliminating erosion.

Keywords:
Filtering embankments, hydraulic calculation of filtering embankments, protection against slope erosion, filtration properties of geotextiles in a frozen state, water-loss coefficient
Text
Text (PDF): Read Download
References

1. Bogomolova N. Features of engineering surveys in areas of permafrost prevalence by the example of the project “northern latitudinal way” / N. Bogomolova, Y. Milyushkan S. Shkurnikov et al. // Transportation Soil Engineering in Cold Regions: Proceedings of TRANSOILCOLD 2019, Saint Petersburg, April 15–22, 2019. — Vol. 2. — Singapore: Springer Nature, 2019. — Pp. 215–221. — DOI:https://doi.org/10.1007/978-981-15-0454-9_23.

2. Shtykov V. I. Gidravlicheskiy raschet bespolostnogo plastovogo drenazha pri gruntovom napornom pitanii / V. I. Shtykov, A. V. Kozlova // Izvestiya Vserossiyskogo nauchno-issledovatel'skogo instituta gidrotehniki im. B. E. Vedeneeva. — 2007. — T. 247. — S. 84–90.

3. Shtykov V. I. Bespolostnoy drenazh periodicheskogo profilya / V. I. Shtykov, Yu. G. Yanko // Melioraciya i vodnoe hozyaystvo. — 2009. — № 4. — S. 35–37.

4. VSN 61—89. Izyskaniya, proektirovanie i stroitel'stvo zheleznyh dorog v rayonah vechnoy merzloty / CNIIS Mintranstroya SSSR. — M.: CNIIS, 1990. — 208 s.

5. Zhilenkov V. N. Gidrodinamicheskie usloviya kontaktnogo razmyva glinistyh gruntov fil'tracionnym potokom / V. N. Zhilenkov, N. I. Shevchenko // Izvestiya Vserossiyskogo nauchno-issledovatel'skogo instituta gidrotehniki im. B. E. Vedeneeva. — 1980. — T. 144. — S. 11–19.

6. Zhilenkov V. N. O soprotivlyaemosti glinistyh gruntov kontaktnomu razmyvu zhil'tracionnym potokom / V. N. Zhilenkov, N. I. Shevchenko // Izvestiya Vserossiyskogo nauchno-issledovatel'skogo instituta gidrotehniki im. B. E. Vedeneeva. — 1981. — T. 146. — S. 55–67.

7. Shtykov V. I. O raschete razmyvayuschih skorostey pri proektirovanii fil'truyuschih sooruzheniy v svyaznyh gruntah / V. I. Shtykov, A. B. Ponomarev, Yu. G. Yanko // Izvestiya Peterburgskogo universiteta putey soobscheniya. — 2021. — T. 18. — № 2. — S. 303–312. — DOI:https://doi.org/10.20295/1815-588X-2021-2-303-312.

8. Shtykov V. I. O dopolnitel'nyh trebovaniyah, pred'yavlyaemyh k zaschitno-fil'truyuschim materialam zakrytyh drenazhey pri zalozhenii ih v zone sezonnogo promerzaniya gruntov / V. I. Shtykov, A. B. Ponomarev // Inzhenerno-stroitel'nyy zhurnal. — 2012. — № 4(30). — S. 39–45. — DOI:https://doi.org/10.5862/MCE.30.6.

9. Gulyuk G. G. Rukovodstvo po melioracii poley / G. G. Gulyuk, Yu. G. Yanko, V. I. Shtykov i dr. — SPb.: Federal'noe gosudarstvennoe avtonomnoe obrazovatel'noe uchrezhdenie vysshego obrazovaniya «Sankt-Peterburgskiy politehnicheskiy universitet Petra Velikogo», 2020. — 219 s. — DOI:https://doi.org/10.25695/k9292-1099-3543-i.

10. Yan H. Modelling the effects of water chemistry and flowrate on clay erosion / H. Yan, M. Sedighi, A. Jivkov // Engineering Geology. — 2021. — Vol. 294. — DOI:https://doi.org/10.1016/j.enggeo.2021.106409.

11. Siddiqua S. Evaluating Turbulent Flow in Large Rockfill / S. Siddiqua, J. A. Blatz, N. C. Privat // Journal of Hydraulic Engineering. — 2011. — Vol. 137. — Iss. 11. — Pp. 1462–1469. — DOI:https://doi.org/10.1061/(ASCE)HY.1943- 7900.0000442.

12. Smith N. S. Numerical Modeling of the Effects of Toe Configuration on Throughflow in Rockfill Dams / N. S. Smith, G. H. R. Ravindra, F. G. Sigtryggsdóttir // Water. — 2021. — Vol. 13. — P. 1726. — DOI:https://doi.org/10.3390/w13131726.

13. Ferdos F. Hydraulic Conductivity of Coarse Rockfill used in Hydraulic Structures / F. Ferdos, A. Wörman, I. Ekström // Transport in Porous Media. — 2015. — Vol. 108. — Pp. 367–391. — DOI:https://doi.org/10.1007/s11242-015-0481-1.

14. Martins R. Turbulent seepage flow through rockfill structures / R. Martins // International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts. — March 1990. — Vol. 42. — Iss. 3. — Pp. 41–45. — DOI:https://doi.org/10.1016/0148-9062(90)90640-N.

15. Bonelli S. Erosion in Geomechanics Applied to Dams and Levees / S. Bonelli, F. Nicot // Erosion in Geomechanics Applied to Dams and Levees. — 2013. — 388 p. — DOI:https://doi.org/10.1002/9781118577165

Login or Create
* Forgot password?