摘要
根据土石坝防渗土工膜受力变形的理论分析成果,结合组合式土工膜在不同粘着牢度及人工加速老化等不同情况下的拉伸试验结果,深入探讨了组合式土工膜的一些工程特性,提出极限伸长率对于膜本身的安全比拉伸强度更为重要的概念以及组合膜获取最大极限伸长率的方法,并得出了一些具有工程实用价值的结论.
In this paper,some engineering characters of the complex geomembrane are studied on the basis of the stress and strain analysis of geomembranes used in earth and rock dams combined with tensile experiments in which the cohesiveness of the geomembranes is different and the aging of some geomembranes is accelerated artificially.The concept put forward is that the tensile limit rate is more important than tensile strength for the safety of geomembrane used in earth and rock dams.The approach to obtaining the maximum tensile limit rate of the complex geomembrane is discussed.Some useful conclusions are drawn.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1993年第4期1-6,共6页
Journal of Hohai University(Natural Sciences)
关键词
土石坝
组合土工膜
渗流控制
earth and rock dam
complex geomembrane
cohesiveness
tensile limit rate
control switch
