玻纤土工格栅的抗拉性能研究  

Study on tensile property of fiberglass geogrid

作　　者：周纪军[1] 程卫国 夏宇[3] 

机构地区：[1]中国水利水电科学研究院岩土工程研究所,北京100048 [2]江苏优凝舒布洛克公司,江苏南京210009 [3]中国矿业大学力学与建筑工程学院,北京100083

出　　处：《水利水电技术》2012年第12期96-99,共4页Water Resources and Hydropower Engineering

基　　金：国家重点基础研究发展规划"973"项目(2011CB013502)

摘　　要：通过对玻璃纤维土工格栅在不同温度条件下的拉伸试验和不同老化时间后的拉伸试验,得到其拉伸断裂强度和断裂伸长率等数据。试验数据分析表明:玻璃纤维土工格栅的断裂强度随着温度的增加而增加,但在10℃时存在突变。玻璃纤维土工格栅的断裂伸长率随着老化时间的增长而下降,经过一定老化时间后趋于稳定值。玻璃纤维土工格栅极限伸长率较低,其适应变形能力较差,特别是低温环境中。The tensile breaking strength and tensile breaking elongation of fiberglass geogrid are obtained through tensile tests under various temperatures and after various aging times. The test result shows that the breaking strength of fiberglass geogrid increases along with the increase of temperature, however, it mutates at 10 ~C. Nevertheless, the breaking elongation of fiberglass geogrid decreases along with the increase of the aging time and tends towards a certain value after a certain aging time. Moreover, the ultimate elongation of fiberglass geogrid is relatively lower with a poor capability to adapt deformation, especially under a low temperature.

关 键 词：玻纤土工格栅 拉伸试验 老化试验 断裂强度 断裂伸长率 

分 类 号：TV41[水利工程—水工结构工程]