Kinematic analysis of new design of deep soil compaction equipment

Introduction. The destruction of road surfaces and hydraulic structures results from insufficient compaction of bulk soils due to layer-by-layer shallow compaction. There is a need to improve technology and equipment for uniform soil compaction at a depth irrelevant to the layer thickness. The purpose of this research is to determine the gear ratio for the new deep soil compaction device designed by the co-authors.
Materials and methods. Methods of mathematical modeling of the new design based on kinematic schemes for determining the gear ratio have been used. The article discusses the kinematic schemes of the new device with three conical rollers mounted between the carrier, the epicycle (compacted soil) and the drill bit at equal angles. According to the diagrams, the gear ratio is expressed by means of angular velocities of the carrier and the conical roller. As angular velocities are determined, the scheme is constructed to determine the radii of the carrier and the conical roller. The relations between the gear ratio of the new design and its geometric characteristics are obtained.
Results. The Certificate of state registration of the computer program No. 2025660077 has been received. Fragments of the source code of a program for calculating the gear ratio of a device in the Python programming language are presented. The applicability of the research results refers to calculating the torque and geometric parameters of similar devices at machine-building enterprises. The practical significance of the research results is related to the improved design of deep soil compaction equipment which increases the efficiency of road construction machinery.
Discussion and conclusion. The research novelty refers to the introduction of the gear ratio for the new device design. Relations between the gear ratio, the angle between the axes centers and the skew angle of the conical rollers make it possible to calculate the torque of such devices. An experimental model of the new device made according to optimal geometric parameters has been presented.

1. Riekstins A., Haritonovs V., Straupe V. at al. Comparative environmental and economic assessment of a road pavement containing multiple sustainable materials and technologies. Construction and Building Materials. 2024; V. 432, 136522. P. 1-15. DOI: 101016/j.conbuildmat.2024.136522

2. Alamgir M., Mason J. Campbell, Sloan S. at al. Economic, Socio-Political and Environmental Risks of Road Development in the Tropics. Current Biology. 2017; V. 27. P. 1130-1140. DOI: 10.1016/j.cub.2017.08.067

3. Chauhan S., Dongol R., Chauhan R. Evaluation of economic loss of urban road flooding: A case of Kathmandu Metropolinan City. Environmental Challenges. 2023; V. 13, 100773. P. 1-11. DOI: 10.1016/j.envc.2023.100773

4. Wijnen W. Socio-economic costs of road crashes in middle-income countries: Applying a hybrid approach to Kazakhstan. IATSS Research. 2021; V. 45. P. 293-302. DOI: 10.1016/j.iatssr.2020.12.006

5. Mohsin A.K.M., Tushar H., Hossain S.F.A. at al. Green logistics and environment, economic growth in the context of the Belt and Road Initiative. Heliyon. 2022; V. 8, e09641. P. 1-7. DOI: 10.1016/j.heliy-on.2022.e09641

6. Baliello A., Wang D. Advances in Road Engineering: Innovation in Road Pavements and Materials. Buildings. 2024; V. 14, 2250. P. 1-5. DOI: 10.3390/buildings14072250

7. Kromsky E.I., Zhilyaev S.V. New technique for compaction of the roadbed. Bulletin of SUSU. The series «Mechanical Engineering» 2016; Vol. 16, № 2. P. 14–22. DOI: 10.14529/engin160202.

8. Massarsch K.R., Fellenius B.H. Deep vibratory compaction of granular soils. Chapter 19 in Ground Improvement-Case Histories, Elsevier publishers, 2005; P. 633–658.

9. Martyuchenko I.G., Ivanov S.V. The choice of rational dimensional and geometric parameters of permafrost-leaching equipment. Construction and road machines. 2015; № 7. P. 49–51.

10. Skrypchenko O., Katerina K., Tetiana K., Bieliatynskyi A. Method of increasing the roughness of the existing road. 15th International scientific conference «Underground Urbanisation as a Prerequisite for Sustainable Development». 2016; № 165. P. 1766–1770. DOI: 10.1016/j.proeng.2016.11.920

11. Baidya D.K., Krishna G.M. Investigation of Resonant Frequency and Amplitude of Vibrating Footing Resting on a Layered Soil System. Geotechnical Testing Journal, Vol. 24, № 4, 2001, pp. 409–417.

12. Savelyev S.V., Brown G.G. Analysis of soil compaction by promising vibrating rollers. Construction and road vehicles. М., 2013; № 1. P. 8–10.

13. Abbas R.K. A review on the wear of oil drill bits (conventional and state of the art approaches for wear reduction and quantification). Eng. Fail. Anal. 90, 2018; pp. 554–584. https: doi.org/10.1016/j.engfaila-nal.2018.03.026

14. Holger P., Marco B., Alexander K. et al. Dynamic soil compaction – recent methods and research tools for innovative heavy equipment approach. The 5th International Conference of Euro Asia Civil Engineering Forum (EACEF-5). 2015; № 125. P. 390–396. DOI: 10.1016/j.proeng.2015.11.096

15. Kromsky E.I., Kondakov S.V., Tilloev K.Z. Promising Machine for Compacting Road-Building Materials. Proceedings of the 5th International Conference on Industrial Engineering (ICIE 2019). 2020; Vol. 1. P. 21–28. DOI: 10.1007/978-3-030-22041-9_3

16. Asfandiarov M.A., Kromsky E.I., Tilloev K.Z. Development of methods for the computer calculation of a new composite materials compaction mechanism. Proceedings of the 5th International Conference on Industrial Engineering (ICIE 2020). Vol. 1. P. 71–78.

17. Kromsky E.I., Tilloev K.Z., Muhiddinzoda K.J. New Mechanism for Composite Materials Compaction. Proceedings of the 6th International Conference on Industrial Engineering (ICIE 2020) 2021. Vol. 1. P. 173–180.

18. Koshel S., Koshel G. Structural analysis of the mechanism with a third-class structure group of the fourth order. New Delhi: Tata McGraw-Hill Publishing company, 2019; p. 29-33.

19. Kromsky E.I., Kondakov S.V., Asfandiyarov M.A. Prospects for the development of technology for the construction of highways with a solid cement-concrete coating. Bulletin of SUSU. The series «Mechanical Engineering». 2018; Vol.18, №3. P. 30-38.

20. Tilloev K.Z., Kondakov S.V., Sharifov D.A. Report on the effectiveness of a crawler excavator with a new technology skim equipment. Tru NGTU im. R.E. Alekseeva. 2023; No.: 1, pp. 125–132. DOI: 10.46960/1816-210X_2023_1_125

21. Ponomarenko Y.E., Baranov N.B. The device of packed piles using a screw working body. Problems of soil mechanics and foundation construction in difficult ground conditions: Collection of works. Ufa: Publishing House of the Tower, 2006. P. 115–118.

22. Heins E., Seitz K.F., Chmelnizkijetal A. Advances in numerical modelling of different ground improvement techniques. Geotechnical Engineering. 2017; №. 48 (3). P. 87–94.

23. Kromsky E.I., Kondakov S.V., Tilloev K.Z., Kadyrova H.I. New replaceable equipment of a hydraulic excavator. Polytechnic Bulletin. The series «Engineering Research». 2018; № 3 (43). P. 50-54.

24. Tilloev K.Z. Mathematical model of the cone rolling machine operation process. Bulletin of SUSU. The series «Mechanical Engineering». 2019; Vol. 19, № 3: P. 60–67. DOI:10.14529/engin190307

25. Kondakov S.V., Asfandiyarov M.A., Gundarev K.A. Mathematical modeling of a device for deep soil compaction. Bulletin of SUSU. The series «Mechanical Engineering». 2021; Vol. 21. № 2. P. 52–59.

26. Tilloev K.Z., Kondakov S.V., Asfandiyarov M.A. Theoretical and experimental study of the process of deep soil compaction by a cone roller. Izvestiya vuzov. Mining magazine. 2021; № 3. P. 60–70. DOI: 10.21440/0536-1028-2021-3-60-70

27. Asfandiarov M.A., Kromsky E.I., Tilloev K.Z. Development of methods for the computer calculation of a new composite materials compaction mechanism. Proceedings of the 5th International Conference on Industrial Engineering (ICIE 2020). Vol. 1. P. 71–78.

28. Kromsky E.I., Kondakov S.V., Asfandiarov M.A. Mathematical Model of Mechanism for Sealing Hardly Deformable Materials. Proceedings of the 5th International Conference on Industrial Engineering (ICIE 2019). Vol. 1. P. 11-20.