学术论文

      加筋条件对棕榈加筋土强度的影响

      THE IMPACT OF REINFORCED CONDITIONS ON THE STRENGTH OF PALM REINFORCED SOIL

      摘要:
      为改良上海黏土强度低,易发生破坏的特性,将分散的棕榈片以不同质量加筋率、长宽比等加入上海黏土中进行抗压强度试验和巴西劈裂试验,来探究加筋条件对棕榈加筋土抗压强度和抗拉强度的影响。试验结果表明:与素土相比,棕榈加筋土可提高上海黏土的抗压强度和抗拉强度。抗压强度和抗拉强度最适宜的加筋率为1.00%,最佳棕榈长度为4 mm,最优长宽比为1∶3。相对于素土,加筋对抗拉强度的提高幅度高于抗压强度。同时对棕榈加筋土强度提高的机理进行分析。
      Abstract:
      To improve the characteristics of the low Shanghai clay strength and easy destroy, the dispersed palm was mixed into Shanghai clay with different mass reinforcement ratio and aspect ratio to do unconfined compressive strength test and Brazilian splitting test, then the impact of reinforced conditions on the compressive strength and tensile strength was explored.The results showed that compared with plain soil, palm reinforced soil could increase the compressive strength and tensile strength of Shanghai clay. The most appropriate reinforcement ratio of compressive strength and tensile strength in test was 1.00%.The best palm length was 4 mm, the optimum aspect ratio was 1∶3.Compared with plain soil, the improved degree of tensile strength by reinforcement was higher than that of the compressive strength.Meanwhile it was analyzed the mechanism of raising the strength of palm reinforced soil.
      Author: Qu Jili Zhao Dongxue Li Beibei
      作者单位: 上海理工大学土木工程系,上海,200093
      刊 名: 工业建筑 ISTICPKU
      年,卷(期): 2015, (3)
      机标分类号: TU4 O3
      在线出版日期: 2015年4月13日