两种土工格栅拉伸特性对比试验分析

Comparative Test Analysis of Tensile Properties of Two Kind of Geogrid

通过对双向、四向土工格栅的拉伸试验,总结了格栅拉伸强度和延伸率变化规律,得出了不同类型土工格栅的破坏形式。试验表明:抗拉强度随着拉伸速率的增加而增大;双向格栅的延伸率随着拉伸速率的增加而减小,而四向格栅的延伸率变化不大。

Through the tensile test of two-way and four-way geogrid, this paper summed up the variation of grill tensile strength and eongation and obtained the destruction form of the different types of geogrid. The test showed that： tensile strength increases with increasing stretching rate; geogrid elongation decreases with increasing stretching rate, while little change in elongation of the four-way grille.