With the rapid development of the transportation industry, many highway constructions have been gradually extended to arid and semi-arid areas, and the roadbed works on unsaturated soils have gradually increased. However, the unique moisture sensitivity and suction variability of unsaturated soils bring complex challenges to roadbed construction. For this reason, in order to effectively improve the bearing capacity and stability of unsaturated soil roadbase, this paper researches and optimizes the construction technology of unsaturated soil highway roadbase from the perspectives of filler selection, layered compaction, strong tamping reinforcement, drainage design, etc., which is of great practical significance to ensure the long-term stability and safety of unsaturated soil roadbase.

Unsaturated soil;Highway;Roadbed;Compacted reinforcement

[1] Yang Chen. Rainfall stability analysis of unsaturated soil slope based on Midas[J]. Guangdong Building Materials, 2023, 39 (06): 67-70. [2] Jiang Lianghua. Characterization of foundation consolidation in unsaturated soil shafts under complex conditions [D]. Shanghai University, 2021. [3] Li Dun. Two-dimensional consolidation characterization of unsaturated soil under semi-permeable boundary conditions [D]. Hunan University, 2019.

DOI： https://doi.org/10.62639/sspjinss07.20240104

Published： 2024