In Situ Test and Improvement Measures of Polypropylene Fiber-Reinforced Loess Slope Protection
In order to provide a theoretical basis and reference for the large-scale promotion of the technology of reinforced loess slope protec-tion,the soil moisture content and slope morphology of the polypropylene fiber-reinforced loess protective slope were tested in situ for 6 months.The results show that the PP fiber-reinforced loess has a good slope protection effect,and the soil moisture content of the reinforced loess protective slope is generally stable.The average variability of soil moisture content in different soil layers is 10.89%lower than that of the untreated slope.This is because the morphology of the reinforced loess protective layer is generally complete,and it can resist the contin-uous impact of adverse external environments such as rainfall,dry-wet cycle,and freeze-thaw cycle for a long time.However,the vegetation growth on the PP fiber-reinforced loess protective slope is slow,and the protective layer is easy to differentiate and detach from the undis-turbed soil.The improvement strategies of the reinforced loess protective slope are put forward,such as water retention improvement of the re-inforced loess,the design of the multi-functional layer with rapid vegetation,and the physical anti-detachable technology of the material with strong operability.
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