摘要
寒冷地区可采用苯板解决土石坝上游护坡的冻胀问题。采用两种试验仪器测定两布一膜与苯板、坝体的摩擦参数。通过两种试验参数计算边坡抗滑稳定,分析稳定计算成果。结果表明:采用土工合成材料综合测定仪时,随着膜的粗糙程度增大,粘聚力增大,摩擦角减小,且苯板产生了变形;采用非散粒体材料摩擦角测定仪时,不能得到苯板与一布一膜、两布一膜之间的稳定摩擦角,可得到苯板与光面土工膜的稳定摩擦角。试验证明:恰拉水库护坡衬砌方式较优,边坡稳定性高,安全系数大。非散粒体材料摩擦角测定仪需进一步改进。
Polystyrene board can be used to solve earth-rock dam slope frost heave problem in the cold re-gions.Two ways of testing instrument are used to test the friction parameters between dual textiles with one membrane and polystyrene board,and dam body.With two test parameters to calculate the slope stability a-gainst sliding of a Bank Slope,the stability calculation results was analyzed.The results show that：When using geosynthetics integrated tester,with the roughness of the film increases,the cohesive force increases,the fric-tion angle decreases,and the deformation produced benzene board;when using non-granular material friction angle measurement cannot get benzene board with a cloth membrane ,stable friction angle stable angle of fric-tion between the two cloth membrane obtained benzene board with smooth geomembrane.Tests to prove：Qiala reservoir slope lining way superior,high stability,safety factor.Non-granular material friction angle measure-ment for further improvement.
出处
《吉林水利》
2015年第3期35-38,共4页
Jilin Water Resources
基金
新疆维吾尔自治区自然科学基金项目(2014211B001)
关键词
苯板
边坡稳定
摩擦特性
polystyrene board
slope stability
friction characteristics
