Impact of Cement Mixing Ratio on the Stability of Sandy Silt
Publication: International Conference on Road and Airfield Pavement Technology 2023
ABSTRACT
In road slopes, a landslide is the most serious geological hidden danger, and the strength loss of slope soil is one of the important factors causing a landslide. With the continuous progress of science and technology, cement-improved soil highlights its advantages in many road projects, its strength is far greater than the subgrade slope soil. In this paper, the cement-improved sandy silty soil in the Qinghai-Tibet mining area under cold conditions is taken as the research object. Based on the GeoStudio software model, the influence law of cement-improved sandy silty soil on subgrade slope is analyzed under different water content, different subgrade width, different subgrade height, different subgrade slope ratio, and different cement incorporation ratios. The results show that the water content of cement-improved soil increases from 13.0% to 18.0%, and the subgrade slope tends to be more stable. The larger the subgrade width, the smaller the subgrade height, and the smaller the subgrade slope ratio, the higher the stability of the subgrade slope. Among them, the cement-modified sandy silt with a 6% cement incorporation ratio is the best for the stability of the subgrade slope.
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International Conference on Road and Airfield Pavement Technology 2023
Pages: 47 - 55
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Published online: Feb 6, 2024
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