%0 Journal Article
%A NIU  Lei
%A WU  Zhan-jun
%A XU  Li-na
%A BI  Su-hong
%A HUANG  Zhan-fang
%T Effect of Different Fibers on Soil Mechanical Properties and Mechanism Analysis
%D 2024
%R 10.11988/ckyyb.20230507
%J Journal of Changjiang River Scientific Research Institute
%P 144-150
%V 41
%N 11
%X <p id="p00010">To investigate how different fibers influence soil reinforcement, basalt fiber and glass fiber were separately added to the same soil. Unconfined compressive strength tests were performed to compare the stress-strain curves and analyze the relationship between strength and both fiber content and fiber length for the two types of fiber-reinforced soil. Additionally,fiber anchorage test was conducted to explore the mechanisms of fibers enhancing soil strength. The results demonstrate that fiber-reinforced soil exhibits significantly greater compressive strength compared to plain soil. As fiber length increases, the strength of both basalt and glass fiber-reinforced soils first rises and then falls, with the optimal fiber length being 9 mm. Similarly, increasing fiber content causes the strength of both types of fiber-reinforced soil to fluctuate, with two peaks observed; the optimal fiber content is 0.5%. The fiber anchorage tests reveal that the pull-out force of the fibers varies with changes in fiber spacing. At small spacings, fibers interact, resulting in peak and valley values of pull-out force. As fiber spacing increases and reaches a critical anchorage distance, fibers no longer affect each other.</p>
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20230507