CAJ | 학술논문

以重庆港某码头工程陆域加筋边坡为原型，采用离心模型试验和数值模拟相结合的综合分析方法，研究加筋高陡边坡的加筋机理及稳定性。离心模型试验结果表明：加筋边坡与无加筋边坡的破坏模式不同，无加筋边坡坡肩垮塌，而加筋边坡在1/6~1/3边坡高度处出现应力集中；边坡填料尤其是边坡中、下部填料的强度性质对边坡的安全系数起决定性的作用，如果仅将边坡上部变为强度较低的填料，加筋边坡安全系数变化甚小。数值分析方法先进行离心模型试验验证，再用于分析计算原型加筋边坡的安全系数和应力位移场分布，保证了数值分析计算结果的正确性，研究成果为设计提供了技术支持。本研究方法可作为研究加筋边坡工程或其他岩土工程参考。
이중경항모마두공정륙역가근변파위원형，채용리심모형시험화수치모의상결합적종합분석방법，연구가근고두변파적가근궤리급은정성。리심모형시험결과표명：가근변파여무가근변파적파배모식불동，무가근변파파견과탑，이가근변파재1/6~1/3변파고도처출현응력집중；변파전료우기시변파중、하부전료적강도성질대변파적안전계수기결정성적작용，여과부장변파상부변위강도교저적전료，가근변파안전계수변화심소。수치분석방법선진행리심모형시험험증，재용우분석계산원형가근변파적안전계수화응력위이장분포，보증료수치분석계산결과적정학성，연구성과위설계제공료기술지지。본연구방법가작위연구가근변파공정혹기타암토공정삼고。
Based on the continental reinforced slopes in some wharf engineering of Chongqing port, the reinforcement mechanism and the stability of high and steep geosynthetic-reinforced slopes under its own weight are studied through centrifuge model tests and two-dimensional finite element methods. The centrifuge test results show that the failure mode of the reinforced slope is different from that of slope without geosynthetic. The slope shoulder collapses in the former, while the stress concentrated at the 1/6~1/3 of the slope height in the latter. The strength of the fillings especially those at the middle and lower part of the slope has a decisive influence on the slope stability. If the upper fillings are changed with low strength soils alone, the stability of the slope might decrease rarely. The numerical analysis firstly is tested and verified by the centrifuge tests results, and then is applied to the analysis of the factor of safety and the stress and displacement of the prototype slope. The comprehensive analysis method with centrifuge tests and numerical simulation can be used in other reinforced slopes and geotechnical engineering projects.