郑州大学学报（工学版）2011，Vol.32Issue(2)：71-74,4.
砂浆粘结GFRP土钉抗拔承载力室内试验研究
Laboratory Experimental Study on Pullout Resistance of Mortar Grouted GFRP Soil Nails
摘要
Abstract
In order to verify the applicability of GFRP bar in soil nailing design, a large-scale laboratory apparatus have been built and used in the pullout experiments of mortar grouted glass fiber reinforced polymer (GFRP) soil nails. The displacements of nail head under different pullout loads are measured, and the ultimate pullout loads under different overburden pressures are obtained. The experimental results show that the pullout behavior of mortar grouted GFRP soil nails is similar to that of mortar grouted steel soil nails, and the relation between the displacement of nail head and the pullout load can be described with the hyperbolic function. In addition, there exists the dilatancy effect of the soil near the nail in dense fills during pull out, which should be taken into account in estimating the pullout resistance of soil nails.关键词
土钉/室内试验/玻璃纤维增强塑料/抗拔承载力/剪胀分类
建筑与水利引用本文复制引用
马崇武,刘忠玉,周高永..砂浆粘结GFRP土钉抗拔承载力室内试验研究[J].郑州大学学报（工学版）,2011,32(2):71-74,4.基金项目
广东省科技计划项目(2007B060401021),东莞市科技计划项目(2008108101025) （2007B060401021）
