不同试验因素对土工合成材料拉伸强度影响研究  

Study on the Influence of Different Test Factors on the Tensile Strength of Geosynthetics

作　　者：秦小军 QIN Xiaojun(Gansu Provincial Transportation Research Institute Group Co.,Ltd.,Lanzhou 710030,China)

机构地区：[1]甘肃省交通科学研究院集团有限公司,兰州710030

出　　处：《路基工程》2025年第2期85-89,共5页Subgrade Engineering

摘　　要：采用拉伸试验机研究不同试验速率、试样长度、试样宽度条件下,对EVA1.2 mm防水板拉伸强度的影响,验证并得出其合理的试验控制条件。结果表明:EVA1.2 mm防水板拉伸速率在255~270 mm/min、试样长度为50~60 mm、试样宽度为8~10 mm时,材料的拉伸强度能达到最优;优化材料的使用条件,能更好地发挥土工合成材料的使用性能,进而指导现场施工。The tensile test machine was used to study the influence of different test rates,sample lengths and sample widths on the tensile strength of EVA1.2 mm waterproof board,and the reasonable test control conditions were verified and obtained.The result shows that,the tensile strength of the material can reach the best when the tensile rate of EVA1.2 mm waterproof board is 255-270 mm/min,the width of the sample is 8-10 mm,and the length of the sample is 50-60 mm.Optimizing the conditions of use of the material can better bring out the performance of geosynthetics,which in turn guides the construction on site.

关 键 词：土工合成材料 防水板 拉伸强度 试验比选 性能优化 经济性 

分 类 号：U454[建筑科学—桥梁与隧道工程]