Abstract
The demand for high-speed railways for new line access has gradually increased with the continuous expansion of the scale of China's high-speed railway network. It is necessary to solve the problem of settlement control of the existing station subgrade formation with the increased load of new line access. Foamed lightweight soil is a type of material formed by cement, foaming agent, and water hardened by physical and chemical actions. Featuring high strength and lightweight, it is used to widen the subgrade, which effectively solves the differential settlement and deviation caused by the traditional roadbed filling. Meanwhile, the roadbed treatment technology can be simplified, and the construction period can be shortened. In this paper, strength development mechanism and performance evolution law of foamed lightweight soil in China’s high-speed railway, subgrade structure type and design method of foamed lightweight soil subgrade structure in high-speed railway, and application of high-speed railway subgrade widening engineering are introduced. The results show that as a new type of lightweight and high-strength subgrade structure, the foamed lightweight soil subgrade is an effective mean to solve the problem of settlement and deformation control of high-speed railway subgrade widening and also provides a new solution for settlement control of transition sections, soft soil subgrade, steep slope sections, and other sections.
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References
Li S, Yao JP, Pang S et al (2019) Key control technology for construction of lightweight soil subgrade in high speed railway. Railway Constr 59(01):68–71
Deng F (2018) Application of foamed lightweight soil in foundation treatment of soft soil road base of hangzhou east railway station. Railway Stan Des 3:31–35
Ghorbani S et al (2019) Effect of magnetized water on foam stability and compressive strength of foam concrete. Constr Build Mater 197:280–290
Just A, Middendorf B (2009) Microstructure of high-strength foam concrete. Mater Charact 60(7):741–748
Li P et al (2005) Preparation and optimization of ultra-light and thermal insulative aerogel foam concrete. Constr Build Mater (205):529–542
She W, Chen Y, Zhang Y et al (2013) Characterization and simulation of microstructure and thermal properties of foamed concrete. Constr Build Mater 47:1278–1291
Tikalsky P, Pospisil J, Macdonald W (2004) A method for assessment of the freeze–thaw resistance of preformed foam cellular concrete. Cem Concr Res 34(5):889–893
Cheng GZ (2017) Effect of preparation parameters on working performance and mechanical properties of foamed lightweight soil. Railway Archit 1:56–60
Zhao WH, Su Q, Li T et al (2017) Experimental study on mechanical properties of glass fiber reinforced foam lightweight concrete. Ind Build 47(9):110–114
Wang WB, Zhao WH, Su Q et al (2017) Experimental study on mechanical properties of polypropylene fiber-reinforced foam lightweight concrete. Railway Constr 2:146–150
Wang LJ, Ye YS, Zhang QL et al (2017) Experimental study on the flooding performance of foamed lightweight soil. Railway Constr 1:103–106
Yang WP (2017) Experimental study on durability of lightweight foam soil. Commun Sci Technol Hunan 43(2):99–101
Zhao XY (2016) Application of bubble lightweight soil in existing high-speed railway roadbed widening project. Railway Archit 6:96–98
National Railway Administration of the People’s Republic of China (2016) Railway subgrade design code. China Railway Publishing House Co. LTD, Beijing, pp 51–52
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Yao, J., Cai, D., Cheng, G., Li, S., Xie, J. (2022). The Key Technology of High-Speed Railway Foamed Lightweight Soil Subgrade. In: Tutumluer, E., Nazarian, S., Al-Qadi, I., Qamhia, I.I. (eds) Advances in Transportation Geotechnics IV. Lecture Notes in Civil Engineering, vol 164. Springer, Cham. https://doi.org/10.1007/978-3-030-77230-7_37
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DOI: https://doi.org/10.1007/978-3-030-77230-7_37
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