光纤对土工膜应力影响的数值仿真

Simulation Rresearch on Optical Fiber to Geomembrane Stress Influence

光纤土工膜是一种将光纤蛇形连续地布置于传统土工膜的夹层之中获得具有分布式监测功能的防渗材料,内置光纤对土工膜的应力影响显著,光纤土工膜整体强度的变化规律亟待研究。选用数值仿真方法,探讨光纤对土工膜的加筋作用,分析膜内光纤间距的变化对其力学参数的影响。研究表明:复合土工膜上铺设光纤之后,复合土工膜的抗拉强度得到提高,并且内置光纤减小了复合土工膜的变形,同时,结合光纤的温度敏感度,建议光纤间隔为0.6m。

Optical fiber geomembrane is a new seepage materials , built-in optical fiber to geomembrane is signif- icant on stress distribution, the change rule of optical fiber geomembrane overall intensity is to be study. So the pa- per will discusses the geomembrane fiber reinforcement effect, and analysis in the distance change fiber membrane for its mechanical parameters influence by numerical simulation method. Thus obtained the corresponding conclu- sion ： fiber is laid in a composite geomembrane that improves the strength of the composite geomembrane and reduces the deformation of the composite, meanwhile, combined with optical fiber temperature sensitivity, suggestting that fiber interval is 0. 6 m.