CAJ | 학술논문

以庆阳黄土为研究对象，对加筋土的剪切试验研究现状进行了综述，通过室内直剪试验研究了草根加筋土的应力-应变及强度特性，探讨了草根加筋土抗剪强度指标的变化规律。试验结果表明，草根加筋土的强度和抵抗变形的能力较素土有显著的增强，加筋后土样的抗剪强度增强，内摩擦角φ提高幅度不大，而粘聚力 c 提高幅度较大。
이경양황토위연구대상，대가근토적전절시험연구현상진행료종술，통과실내직전시험연구료초근가근토적응력-응변급강도특성，탐토료초근가근토항전강도지표적변화규률。시험결과표명，초근가근토적강도화저항변형적능력교소토유현저적증강，가근후토양적항전강도증강，내마찰각φ제고폭도불대，이점취력 c 제고폭도교대。
In this paper,taking Qingyang loess as the object,the research status of shear test of rein-forced soil was reviewed.Laboratory direct shear tests were carried out in order to understand the stress-strain relationship and strength property of grassroots-reinforced soil and to study the changes of shear strength parameters of grassroots reinforced soil.The laboratory test results show that the strength and the capacity for resisting the deformation of grassroots-reinforced soil are better than those of unreinforced soil;shear strength of reinforced soil enhances significantly,internal friction an-gle increases marginally,while cohesion increases by a big margin.This study has guiding significance for understanding the mechanism of vegetation slope.