为了研究慈竹土工格栅在四川巴中－南充高速公路填筑路堤加固应用中的可行性，通过新鲜慈竹的顺纹抗拉和弯曲试验统计分析了慈竹土工格栅的力学性能，将其与传统土工格栅的力学性能相比表明：慈竹土工格栅能满足规范对传统土工格栅的要求，可用于填筑路堤加固。根据力学性能试验结果，选取龄期2 a以上的慈竹作为该公路路堤的辅助加筋材料。通过室内直剪试验对慈竹加筋土的界面特性进行研究，确定了竹青和竹黄朝向间隔布置的竹片格栅相对较优，对应的界面摩擦系数能达到0.32：拉拔试验获得竹片与土的界面似摩擦系数能达到0.35。提供的慈竹土工格栅的编织工艺以及加筋填筑路堤的施工工艺能更好地为工程服务。

To investigate the feasibility of bamboo geogrid in reinforcing the filling embankment of Bazhong-Nanchong expressway in Sichuan Province of China, the mechanical behaviours of fresh bamboo geogrid are analyzed based on the laboratory tensile and bending test results. The results show that bamboo geogrid can match the traditional geogrid in mechanical performance, and meet specification requirements. Based on above test results, the bamboo with 2-year-old or older is selected as auxiliary reinforcement material. Laboratory direct shear test is conducted to exame the interface properties of bamboo-reinforced soil. It is that the arrangement of bamboo strips in geogrid is relatively optimal when orientations of bamboo’s green and yellow surfaces alternate one by one, and the corresponding interface friction coefficient reaches 0.32. The friction coefficient of interface between soil and bamboo pieces reaches 0.35 in the laboratory pull-out tests. The knitting process of bamboo geogrid and the construction technology for the reinforced filling embankment in this study are beneficial to practical engineering.