Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey Soils
Designing advanced methods of corrosion protection and increasing the bearing capacity of pile foundations on saline clayey soils is a priority geotechnical task in Kazakhstan. The formation of a suffusion-resistant waterproof shell was achieved by silicatization of a borehole before concreting, by...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/15/6935 |
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| author | Bulat B. Unaibayev Bulat Zh. Unaibayev Nurgul Alibekova Assel Sarsembayeva |
| author_facet | Bulat B. Unaibayev Bulat Zh. Unaibayev Nurgul Alibekova Assel Sarsembayeva |
| author_sort | Bulat B. Unaibayev |
| collection | DOAJ |
| description | Designing advanced methods of corrosion protection and increasing the bearing capacity of pile foundations on saline clayey soils is a priority geotechnical task in Kazakhstan. The formation of a suffusion-resistant waterproof shell was achieved by silicatization of a borehole before concreting, by the installation of a mold into the borehole and the impregnation of a sodium silicate solution into the space between the mold and the soil under pressure. After coagulation of the silicate solution, the mold was removed and the formed shell was filled with corrosion-resistant concrete. Full-scale static pile load tests were conducted in the construction site “Retaining wall on Mount Koktobe” in Almaty. The bearing capacity of the piles with the protective silicate shell exceeded the bearing capacity of an ordinary pile by 2.5 times on average without wetting the site, and 3.2 times after prolonged wetting. The numerical model had a close relationship with the average experimental curve obtained when conducting six static pile load tests with the protective shell. A large economic effect of the developed piling technology with a protective shell was achieved, with a significant reduction in the cost of piling, equal to 27.85%. |
| first_indexed | 2024-03-10T09:18:34Z |
| format | Article |
| id | doaj.art-231a7777c68c4a7aa168e00c37c028d6 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T09:18:34Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-231a7777c68c4a7aa168e00c37c028d62023-11-22T05:21:51ZengMDPI AGApplied Sciences2076-34172021-07-011115693510.3390/app11156935Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey SoilsBulat B. Unaibayev0Bulat Zh. Unaibayev1Nurgul Alibekova2Assel Sarsembayeva3Department of Building Materials and Technologies, Karaganda State Technical University, Karaganda 100028, KazakhstanDepartment of Civil Engineering, K. Satpayev Ekibastuz Engineering and Technical Institute, Ekibastuz 141206, KazakhstanDepartment of Civil Engineering, L.N. Gumilyov Eurasian National University, Nur-Sultan 010008, KazakhstanDepartment of Civil Engineering, L.N. Gumilyov Eurasian National University, Nur-Sultan 010008, KazakhstanDesigning advanced methods of corrosion protection and increasing the bearing capacity of pile foundations on saline clayey soils is a priority geotechnical task in Kazakhstan. The formation of a suffusion-resistant waterproof shell was achieved by silicatization of a borehole before concreting, by the installation of a mold into the borehole and the impregnation of a sodium silicate solution into the space between the mold and the soil under pressure. After coagulation of the silicate solution, the mold was removed and the formed shell was filled with corrosion-resistant concrete. Full-scale static pile load tests were conducted in the construction site “Retaining wall on Mount Koktobe” in Almaty. The bearing capacity of the piles with the protective silicate shell exceeded the bearing capacity of an ordinary pile by 2.5 times on average without wetting the site, and 3.2 times after prolonged wetting. The numerical model had a close relationship with the average experimental curve obtained when conducting six static pile load tests with the protective shell. A large economic effect of the developed piling technology with a protective shell was achieved, with a significant reduction in the cost of piling, equal to 27.85%.https://www.mdpi.com/2076-3417/11/15/6935soil stabilizationbored pile coatingcorrosion protectionsodium silicate shellstatic loading testsnumerical modeling |
| spellingShingle | Bulat B. Unaibayev Bulat Zh. Unaibayev Nurgul Alibekova Assel Sarsembayeva Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey Soils Applied Sciences soil stabilization bored pile coating corrosion protection sodium silicate shell static loading tests numerical modeling |
| title | Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey Soils |
| title_full | Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey Soils |
| title_fullStr | Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey Soils |
| title_full_unstemmed | Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey Soils |
| title_short | Installation of Bored Piles with a Protective Silicate Shell of a New Design in Saline Silty-Clayey Soils |
| title_sort | installation of bored piles with a protective silicate shell of a new design in saline silty clayey soils |
| topic | soil stabilization bored pile coating corrosion protection sodium silicate shell static loading tests numerical modeling |
| url | https://www.mdpi.com/2076-3417/11/15/6935 |
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