【作者】 邵朋龙； 钱德玲； 徐良义； 洪路加； 商桐林； 董岩；

【Author】 Shao Penglong;Qian Deling;Xu Liangyi;Hong Lujia;Shang Tonglin;Dong Yan;China Construction Engineering Design Group Co.Ltd Shanghai Branch;School of Civil and Hydraulic Engineering,Hefei University of Technology;

【机构】 中国中建设计集团有限公司上海分公司； 合肥工业大学土木与水利工程学院；

【摘要】 不同布筋方式对加筋土的抗剪强度有着重要的影响。采用直剪试验和三轴试验方法分析了加筋土在荷载作用下的作用机理,测试不同形状的筋带对加筋土抗剪强度的影响。由于不同形状的筋带与土体形成的复合体在加载过程中所产生的内摩擦角和黏聚力不相等,因此,其强度机理不同,导致抗剪强度也是不同的。通过直剪试验得出:随着含水量增加,加筋土的抗剪切强度将先增加后降低;同时采用三轴试验,以30%含水量的土体与筋带形成的加筋土为试验对象,测出不同形状筋带的抗剪强度由高到低依次是圆形大于四边形大于三角形。更多还原

【Abstract】 Different pattern design of reinforced ribbon had great effects on the shear strength of reinforced soil.By direct shear tests and triaxial tests,the mechanism and shear strength of reinforced soil under loads were studied and analyzed by adopting different shape reinforcements for reinforced soil.The reinforced soil with different reinforcements can generate different internal friction and cohesion during the loading process,resulting in its shear strength is also different becouse of the reinforced soil composed of different shapes reinforced ribbon and soil has different strength mechanism.With the increase of water content,the shear strength of reinforced soil will be increased and then reduced through direct shear tests.The reinforced soil with 30%moisture content as experimental subjects,the shear strength of reinforced soil with different shape ribbon is circular,quadrilateral and triangle in descending order through triaxial test.更多还原