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Geomechanics and Engineering Volume 35, Number 6, December25 2023 , pages 593-601 DOI: https://doi.org/10.12989/gae.2023.35.6.593 |
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An analytical solution for compaction grouting problem considering exothermic temperature effect of slurry |
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Chao Li, Yingke Liu, Man Yuan and Tengrui Yang
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| Abstract | ||
| In this paper, an analytical solution of large-strain cylindrical cavity expansion in compaction grouting problem under temperature field is given. Considering the stress increment caused by temperature, the analytical solution of cavity expansion under traditional isothermal conditions is improved by substituting the temperature stress increment into the cavity expansion analysis. Subsequently, combined with the first law of thermodynamics, the energy theory is also introduced into the cylindrical cavity expansion analysis, and the energy dissipation solution of cylindrical cavity expansion is derived. Finally, the validity and reliability of solution are proved by comparing the results of expansion pressure with those in published literatures. The results show that the dimensionless expansion pressure increases with the increase of temperature, and the thermal response increases with the increase of dilation angle. The higher the exothermic temperature of grouting slurry, the greater the plastic deformation energy of the surrounding soil, that is, the greater the influence on the surrounding soil deformation and the surrounding environment. The proposed solution not only enrich the theoretical system of cavity expansion, but also can be used as a theoretical tool for energy geotechnical engineering problems, such as CPT, nuclear waste disposal, energy pile and chemical grouting, etc. | ||
| Key Words | ||
| compaction grouting problem; cylindrical cavity expansion; exothermic temperature effect; slurry | ||
| Address | ||
| Chao Li: State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China; School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China Yingke Liu, Man Yuan and Tengrui Yang: School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, People's Republic of China | ||