One of Approaches to Solve the Problem of Increasing the Bearing Capacity of Bored Piles

In modern geotechnical construction, a number of technologies for the construction of bored piles are available. It is known that the bearing capacity on the ground Fd of any pile is the main indicator for the purposes of perception of increased loads from over-foundation structures. To achieve higher Fd values for most technologies of the arrangement of buried structures, the main direction is either an increase in the diameter of the pile or its length. With this approach, the bored piles under heavy loads on them will be cumbersome. The second approach to increasing Fd is the progressive technology of bored pile arrangement with the help of intermediate broadenings. For these piles, the main for increasing the bearing capacity of bored piles is not to increase their diameter, but the number of broadenings along their length. This article considers the third approach to the construction of bored piles with an increased bearing capacity, based on the joint work of the soil-cement pile, the SFA pile (NPSh), and the surrounding soil mass.

N.S. SOKOLOV^1,2, Candidate of Sciences (Engineering), Associate Professor, Director (This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.) 

1 OOO NPF «FORST» (109a, Kalinina Street, 428000, Cheboksary, Russian Federation) 
2 I.N. Ulianov Chuvash State University (15, Moskovskiy pr., 428015, Cheboksary, Russian Federation)

1. Ilyichev V.A., Mangushev R.A., Nikiforova N.S. Experience in the development of the underground space of Russian megacities. Osnovaniya, fundamenty i mekhanika gruntov. 2012. No. 2, pp. 17–20. (In Russian). 

2. Ulitsky V.M., Shashkin A.G., Shashkin K.G. Geotechnical support of urban development. Saint Petersburg: Georekonstrukciya, 2010. 551 p. 

3. Razvodovsky D.E., Chepurnova A.A. Evaluation of the effect of strengthening the foundations of buildings on the technology of jet cementation on their sediment. Promyshlennoe i grazhdanskoe stroitel’stvo. 2016. No. 10, pp. 64–72. (In Russian). 

4. Sokolov N.S., Sokolov S.N., Sokolov A.N. Fine-grained concrete, as a structural construction material for flight augering piles-EDT. Stroitel’nye Materialy [Construction Materials]. 2017. No. 5, pp. 16–20. (In Russian). 

5. Sokolov N.S., Viktorova S.S., Smirnova G.M., Fedoseeva I.P. Flight augering piles-EDT as a buried reinforced concrete structure. Stroitel’nye Materialy [Construction Materials]. 2017. No. 9, pp. 47–50. (In Russian). 

6. Sokolov N.S., Viktorova S.S. Research and development of a discharge device for the production of a flight augering pile. Vestnik Chuvashskogo universiteta. 2017. No. 3, pp. 152–159. (In Russian). 

7. Sokolov N.S., Kadyshev E.N. Electrodischarge technology for the device flight augering piles. Vestnik Chuvashskogo universiteta. 2017. No. 3, pp. 159–165. (In Russian). 

8. Sokolov N.S. The use of flight augering piles-ERT as the bases of the foundations of high bearing capacity. Promyshlennoe i grazhdanskoe stroitel’stvo. 2017. No. 8, pp. 74–79. (In Russian). 

9. Sokolov N.S., Sokolov A.N., Sokolov S.N., Glushkov V.E., Glushkov A.E. Calculation of flight augering piles of high bearing capacity. Zhilishchnoe Stroitel’stvo [Housing construction]. 2017. No. 11, pp. 20–26. (In Russian). 

10. Sokolov N.S. The foundation of the increased load-bearing capacity with the use of flight augering piles-ERT with multiplies broadening. Zhilishchnoe Stroitel’stvo [Housing construction]. 2017. No. 9, pp. 25–29. (In Russian). 

11. Sokolov N.S., Viktorova S.S Research and development of a discharge device for the production of a flight augering pile. Stroitel’stvo: Novye tekhnologii – Novoe oborudovanie. 2017. No. 12, pp. 38–43. (In Russian). 

12. Nikolay Sokolov, Sergey Ezhov, Svetlana Ezhova. Preserving the natural landscape on the construction site for a sustainable ecosystem. Journal of applied engineering science. 15 (2017) 4, 482, pp. 518–523. (In Russian). 

13. Sokolov N.S. Electroimpulse installation for the production of flight augering piles. Zhilishchnoe Stroitel’stvo [Housing construction]. 2018. No. 1–2, pp. 62–66. (In Russian).