纤维加筋红黏土强度特性影响因素的试验

通过对素红黏土和纤维加筋红黏土进行三轴试验,研究了影响纤维加筋红黏土强度特性的影响因素。分析了纤维加筋红黏土的力学特性及筋材参数与纤维加筋红黏土强度间的关系。试验结果的抗剪强度指标表明,红黏土合理的加筋纤维长度在10～13 mm;加筋红黏土的强度随加筋纤维配合比的提高而增强;聚丙烯纤维的加筋效果好于涤棉纤维;加筋红黏土试件最终均呈现出鼓状变形和相互错动,没有明显的破裂面,不存在拉力破坏或黏着破坏;引入强度增强效果系数(ησ)能对纤维加筋红黏土抗剪强度的各影响因素进行综合评价。

Experimental Study on Strength Properties of Texsol

Based on a series of triaxial tests on texsol,this paper analyzed the strength properties of the texsol and the relationship between texsol strength and fiber properties.The test result shows that the optimal length of fiber is 10 mm to 13 mm;the strength of texsol increases with the augment of reinforcement textile fiber mixture ratio,the strength of polypropylene fiber texsol is stronger than that of cotton fiber texsol,and the texsol test sample ultimately presents the drum shape distortion and mutual mo...