论文部分内容阅读
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。
In order to improve the low strength and destructive characteristics of Shanghai clay, the scattered palm pieces were added to Shanghai clay for compressive strength test and Brazilian splitting test with different mass reinforcement ratio, aspect ratio, etc. to investigate the reinforcement conditions Effect of Compressive Strength and Tensile Strength of Palm Reinforced Soil. The test results show that, compared with plain soil, palm-reinforced soil can improve the compressive strength and tensile strength of Shanghai clay. The most suitable compressive strength and tensile strength of the reinforcement rate of 1.00%, the best palm length of 4 mm, the optimal aspect ratio of 1: 3. Relative to plain soil, the increase of the tensile strength of the reinforcement is higher than that of the compressive strength. At the same time, the mechanism of increasing the strength of palm reinforced soil was analyzed.