长沙理工大学学报（自然科学版）2016，Vol.13Issue(4)：8-14,7.
土工合成材料加筋土拉拔试验数值模拟分析
Numerical simulation and analysis of drawing test for reinforced soil
黄鑫 1杨川文1
作者信息
- 1. 武汉理工大学 交通学院，湖北 武汉 430000
- 折叠
摘要
Abstract
On the basis of three kinds of geosynthetics pullout tests, the established FLAC3D numerical simulation model studied the required pull-out displacement value by fully mobilizing geosynthetics to arrive at the peak of shear stress and the changes of draw-ing displacement and stress for reinforced soild.The results show that the model of FLAC3D numerical simulation and analysis are basically consistent with the pullout test as for the curve about shear stress and drawing displacement.The tensile stress of the rein-forcement increases with the increase of the pulling force,and when the peak value of the shear stress is reached,the drawing stress of the reinforcement tends to be stable.The dis-placement of the filler in the drawing direction includes the positive displacement,the nega-tive displacement and the zero displacement.The boundary of the positive displacement re-presents the height of the influence belt.The stress in the drawing direction of filler changes from descending distribution layer by layer from the lower to the upper into decreasing and increasing distribution around the two maximum and minimum stress circle along with the increase of the drawing displacement.关键词
土工合成材料/拉拔试验/数值模拟分析/拉拔位移/影响带高度Key words
geotechnical synthetic material/drawing test/numerical simulation analysis/drawing displacement/the height of influence belt分类
建筑与水利引用本文复制引用
黄鑫,杨川文..土工合成材料加筋土拉拔试验数值模拟分析[J].长沙理工大学学报（自然科学版）,2016,13(4):8-14,7.
