CAJ | 학술논문

针对土工格室加筋后的橡胶砂研究的缺乏，对此加筋橡胶砂进行了直剪和固结变形对比试验研究。分别针对橡胶颗粒质量分数为20%和30%的2种配合比的橡胶砂进行了研究，得到了剪应力-剪应变曲线、竖向位移-剪切位移曲线以及固结压力-沉降曲线。试验结果表明：土工格室加筋使得橡胶砂的强度有较大提高，且对粘聚力的提高明显，对摩擦角的影响较小；土工格室加筋能显著降低橡胶砂的剪胀和剪缩变形，能显著减少橡胶砂的竖向压缩变形；橡胶砂的橡胶颗粒含量越大，加筋效应越明显。
침대토공격실가근후적상효사연구적결핍，대차가근상효사진행료직전화고결변형대비시험연구。분별침대상효과립질량분수위20%화30%적2충배합비적상효사진행료연구，득도료전응력-전응변곡선、수향위이-전절위이곡선이급고결압력-침강곡선。시험결과표명：토공격실가근사득상효사적강도유교대제고，차대점취력적제고명현，대마찰각적영향교소；토공격실가근능현저강저상효사적전창화전축변형，능현저감소상효사적수향압축변형；상효사적상효과립함량월대，가근효응월명현。
As lack of research of geocell reinforced rubber-sand mixture (RSM), the direct shear and consolidation deformation experiments are conducted on the reinforced RSM. The reinforced RSMs with rubber mass content of 20%and 30%respectively are studied, and the shear stress-shear strain curve, the vertical displacement-shear displacement curve and the consolidation pressure-settlement curve are obtained. The result indicates that:the strength of RSM is greatly enhanced by the reinforcement of geocell, specifically the cohesive factor is significantly improved and the friction angle is slightly affected. After the reinforcement by geocell, the shear contraction and dilatancy of RSM decrease significantly, as well as the vertical deformation under consolidation reduces obviously. The effect of reinforcement by geocell increases with the mass content of rubber in RSM.