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Statistical Analysis of the Influence of Temperature and Humidity on the Stability of Geomembrane Mechanical Test
IOP Conference Series: Earth and Environmental Science Pub Date : 2021-02-21 , DOI: 10.1088/1755-1315/669/1/012023
Airong Zheng 1, 2
Affiliation  

Using mathematical statistics, we analyzed the influence of temperature and relative humidity during test on the results. The test data of geomembrane were obtained by changing the temperature and relative humidity ranging from 18C to 25C and from 50% to 70% respectively. The results show that under different temperature and humidity, the coefficient of variation of the maximum tensile test value is 8.0%∼17.4%, and the coefficient of variation of average value is 6.7%, which is poor in stability; the coefficient of variation of the test value of elongation at break is 4.7% ∼ 11.7%, and the coefficient of variation of average value is 4.6%, and the value increases with increasing temperature; the coefficient of variation of right angle tear strength is 6.0% ∼ 20.7%, and the coefficient of variation of average value is 6.4%; the coefficient of variation of puncture strength test value is 4.2% ∼ 7.3%, and the coefficient of variation of average value is 6.1%, and the value decreases with the increase of temperature. These results will shed light on analyzing the influence of temperature and humidity on the mechanical test results of geomembrane and determining a reasonable temperature and humidity control range for geomembrane testing.



中文翻译:

温度和湿度对土工膜力学试验稳定性影响的统计分析

通过数理统计,我们分析了测试过程中温度和相对湿度对结果的影响。土工膜的测试数据是通过改变温度和相对湿度分别从18℃到25℃和从50%到70%得到的。结果表明,在不同温度和湿度下,最大拉伸试验值的变异系数为8.0%~17.4%,平均值的变异系数为6.7%,稳定性较差;断裂伸长率试验值变异系数为4.7%~11.7%,平均值变异系数为4.6%,随温度升高而增大;直角撕裂强度变异系数为6.0%~20.7%,平均值变异系数为6.4%;穿刺强度试验值的变异系数为4.2%~7.3%,平均值的变异系数为6.1%,随温度的升高而减小。这些结果将有助于分析温湿度对土工膜力学试验结果的影响,确定土工膜试验的合理温湿度控制范围。

更新日期:2021-02-21
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