Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars
The article deals with the problem of stability of embankments on a strong and a weak base. On the main field-site of roadbed composed of clay soils ballast depressions (troughs, beds) are distributed. Existence of weak soils within the verges and sloping parts of embankments is experimentally estab...
Published in: | Vestnik of the Railway Research Institute |
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Joint Stock Company «Railway Scientific and Research Institute»
2016
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Online Access: | https://doi.org/10.21780/2223-9731-2016-75-5-289-294 https://doaj.org/article/62a1b7f7fef748439d075fa7c8cbc452 |
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ftdoajarticles:oai:doaj.org/article:62a1b7f7fef748439d075fa7c8cbc452 2023-05-15T17:57:38+02:00 Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars P. I. Dydyshko E. V. Matveev S. V. Ol’Khina 2016-10-01T00:00:00Z https://doi.org/10.21780/2223-9731-2016-75-5-289-294 https://doaj.org/article/62a1b7f7fef748439d075fa7c8cbc452 RU rus Joint Stock Company «Railway Scientific and Research Institute» https://www.journal-vniizht.ru/jour/article/view/111 https://doaj.org/toc/2223-9731 https://doaj.org/toc/2713-2560 2223-9731 2713-2560 doi:10.21780/2223-9731-2016-75-5-289-294 https://doaj.org/article/62a1b7f7fef748439d075fa7c8cbc452 Вестник Научно-исследовательского института железнодорожного транспорта, Vol 75, Iss 5, Pp 289-294 (2016) насыпи прочное основание слабое основание геосетка из базальтоволокна арматурные стержни Railroad engineering and operation TF1-1620 article 2016 ftdoajarticles https://doi.org/10.21780/2223-9731-2016-75-5-289-294 2023-03-19T01:34:04Z The article deals with the problem of stability of embankments on a strong and a weak base. On the main field-site of roadbed composed of clay soils ballast depressions (troughs, beds) are distributed. Existence of weak soils within the verges and sloping parts of embankments is experimentally established. The ongoing natural and man-made processes in the soils of embankments on a solid foundation lead to decrease in the strength characteristics of soils and slumping slope wash-outs. In view of these processes structures to strengthen unstable embankments are designed with geogrids of basalt fiber and rebar. On unstable sites of embankments the geogrid is laid after deep purification of crushed stone by rolling strips 10 m long on the shorter site and placing them behind a bar chain of ballast cleaner car. Curtailed roll is unrolled then. On a slope through every 1,5 m across and along the tracks rods are clogged, on which a geogrid is put on through cells. Rods immerse up to the depth of 1,5 - 2 m. On sites with narrower main platform by use of these materials the broadening of the main platform is made. A layer of the draining soil is poured out on a covering. The calculation procedure of anti-deformation design is given. The article gives an analysis of embankments depression on weak grounds. To the most extent depressions are common in the permafrost. Causes of long-term embankment depression - squeezing ground - are estimated. To eliminate such depressions it is need to raise permafrost level in the area of the slope sole of embankments or create a mechanical barrier. Technical solution using geogrids of basalt fiber and rebar designed as a mechanical barrier. The article sets out the conditions of application of such design. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Vestnik of the Railway Research Institute 75 5 289 294 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
насыпи прочное основание слабое основание геосетка из базальтоволокна арматурные стержни Railroad engineering and operation TF1-1620 |
spellingShingle |
насыпи прочное основание слабое основание геосетка из базальтоволокна арматурные стержни Railroad engineering and operation TF1-1620 P. I. Dydyshko E. V. Matveev S. V. Ol’Khina Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars |
topic_facet |
насыпи прочное основание слабое основание геосетка из базальтоволокна арматурные стержни Railroad engineering and operation TF1-1620 |
description |
The article deals with the problem of stability of embankments on a strong and a weak base. On the main field-site of roadbed composed of clay soils ballast depressions (troughs, beds) are distributed. Existence of weak soils within the verges and sloping parts of embankments is experimentally established. The ongoing natural and man-made processes in the soils of embankments on a solid foundation lead to decrease in the strength characteristics of soils and slumping slope wash-outs. In view of these processes structures to strengthen unstable embankments are designed with geogrids of basalt fiber and rebar. On unstable sites of embankments the geogrid is laid after deep purification of crushed stone by rolling strips 10 m long on the shorter site and placing them behind a bar chain of ballast cleaner car. Curtailed roll is unrolled then. On a slope through every 1,5 m across and along the tracks rods are clogged, on which a geogrid is put on through cells. Rods immerse up to the depth of 1,5 - 2 m. On sites with narrower main platform by use of these materials the broadening of the main platform is made. A layer of the draining soil is poured out on a covering. The calculation procedure of anti-deformation design is given. The article gives an analysis of embankments depression on weak grounds. To the most extent depressions are common in the permafrost. Causes of long-term embankment depression - squeezing ground - are estimated. To eliminate such depressions it is need to raise permafrost level in the area of the slope sole of embankments or create a mechanical barrier. Technical solution using geogrids of basalt fiber and rebar designed as a mechanical barrier. The article sets out the conditions of application of such design. |
format |
Article in Journal/Newspaper |
author |
P. I. Dydyshko E. V. Matveev S. V. Ol’Khina |
author_facet |
P. I. Dydyshko E. V. Matveev S. V. Ol’Khina |
author_sort |
P. I. Dydyshko |
title |
Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars |
title_short |
Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars |
title_full |
Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars |
title_fullStr |
Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars |
title_full_unstemmed |
Strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars |
title_sort |
strengthening of unstable embankments using geogrids of basalt fiber and reinforced bars |
publisher |
Joint Stock Company «Railway Scientific and Research Institute» |
publishDate |
2016 |
url |
https://doi.org/10.21780/2223-9731-2016-75-5-289-294 https://doaj.org/article/62a1b7f7fef748439d075fa7c8cbc452 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Вестник Научно-исследовательского института железнодорожного транспорта, Vol 75, Iss 5, Pp 289-294 (2016) |
op_relation |
https://www.journal-vniizht.ru/jour/article/view/111 https://doaj.org/toc/2223-9731 https://doaj.org/toc/2713-2560 2223-9731 2713-2560 doi:10.21780/2223-9731-2016-75-5-289-294 https://doaj.org/article/62a1b7f7fef748439d075fa7c8cbc452 |
op_doi |
https://doi.org/10.21780/2223-9731-2016-75-5-289-294 |
container_title |
Vestnik of the Railway Research Institute |
container_volume |
75 |
container_issue |
5 |
container_start_page |
289 |
op_container_end_page |
294 |
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1766166119170703360 |