摘要
玻塑复合土工格栅强度高,冲击韧性好,耐环境应力、抗蠕变性能强,且在正常使用状态下能够保持长期稳定的性能。通过对玻塑复合土工格栅的原料、工艺流程、性能指标的介绍,并通过现场拉伸试验,对不同温度下格栅的纵向、横向断裂强度以及断裂伸长率进行了分析研究,得到如下研究结论:(1)格栅条带采用纤维材料,能够抵抗侵蚀和气候变化,保证其性能的稳定性;(2)格栅的断裂强度与温度呈正相关,断裂伸长率与温度呈负相关,并经过一定时间后趋于稳定;(3)结构采用特殊工艺,提高了格栅的抗剥离撕裂强度和对土体的嵌锁咬合能力,玻塑复合土工格栅的开发在我国正处于起步阶段,作为加筋、加固材料必将在土木工程领域有着广阔应用前景。
Glass-plastic composite geogrid,high strength,impact toughness,resistance to environmental stress, creep resistance is strong,and in normal use to maintain long-term stable performance.Through the glass-plastic composite geogrid materials,technological process,the introduction of performance indicators,and Through field tensile test at different temperatures grille longitudinal and transverse rupture strength and fracture elongation were analyzed,get the following conclusions:(1)grille strip with fiber material that can resist erosion and climate change,to ensure the stability of its performance;(2)grille breaking strength was positively correlated with temperature,elongation with temperature negative correlation,and after a certain time to stabilize;(3)Structure using a special process to improve the grille peel tear strength and soil interlocking engagement capability,glass- plastic composite geogrid development in our country is in its infancy,as reinforcement,reinforcement will in the civil engineering field has broad market prospects.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2013年第S1期300-305,共6页
Acta Materiae Compositae Sinica
基金
国家自然科学基金(41372289)
中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室(2012003)
山东省高等学校科技计划项目(12LH03)
中国博士后科学基金(2012M521365)
关键词
玻塑复合土工格栅
聚乙烯
拉伸试验
断裂强度
断裂伸长率
glass-plastic composite geogrid
polyethylene
tensile test
breaking strength
elongation at break
