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Behavior of Strip Footing on Fiber Reinforced Model Slopes

机译:纤维增强模型边坡上条形基础的行为

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Laboratory scaled model slopes reinforced with waste carpet fibers were made in a rigid tank with dimensions of 800 mm × 300 mm × 500 mm. Bearing capacities of the strip footing rested on non-reinforced and fiber reinforced model slopes with 1 %, 3 % and 5 % fiber content were compared at 20 % footing displacement ratio. The influence of location of footing on the bearing capacity was studied with placing the footing at different edge distances from crest of the footing (i.e., 150 mm, 100 mm and zero). Suction probe sensors were installed at appropriate locations on the rear side of the model slope to measure the pore-water pressure generated due to the footing pressure. Results showed that fiber reinforcement increased the bearing resistance of the model slopes significantly. Inclusion of 5 % fiber increased the bearing resistance by 271 % compared to that of non-reinforced model slope at the footing edge distance ratio of three. The location of footing was found to affect the load carrying capacity of the fiber reinforced model slope. The increase in the edge distance ratio of the footing increased the load carrying capacity of the model slope.
机译:在尺寸为800 mm×300 mm×500 mm的刚性罐中,制作了用废地毯纤维增强的实验室比例模型坡度。在20%的基脚位移比下,比较了纤维含量分别为1%,3%和5%的非增强和纤维增强模型坡道上的带状基脚的承载力。通过将底脚放置在离底脚顶部不同的边缘距离(即150毫米,100毫米和零)处,研究了底脚位置对承载力的影响。吸气探头传感器安装在模型斜面后侧的适当位置,以测量由于立足压力而产生的孔隙水压力。结果表明,纤维增强显着提高了模型斜坡的承载力。在底脚边距比为3时,与非增强模型坡度相比,包含5%纤维使轴承阻力增加了271%。发现立足点的位置会影响纤维增强模型坡度的承载能力。基脚的边距比的增加增加了模型斜坡的承载能力。

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