防灾减灾工程学报2017，Vol.37Issue(6)：863-870,8.DOI:10.13409/j.cnki.jdpme.2017.06.002
三维土工网防护边坡整体稳定性分析
Analysis of the Overall Stability of the Three Dimensional Geonet Protected Slope
摘要
Abstract
Global instability has been constantly appearing in the early stage of application of three dimensional geonet slope protection.In this paper,we develope a three-dimensional finite element model on three dimensional geonet reinforced slope by using ABAQUS.The displacement at characterization point in slope shoulder was used to determine the instability of the slope.We computed and compared the safety factor of slope with and without geonet under different rainfall conditions and explored the plastic zone distribution and slope displacement at the instability point.Lifting angle and damage mode of above two kinds of the slope were experimentally investigated in slope lifting test analysis,and test results are compared with simulation.Both experimental and numerical results show that three-dimensional geonet can only slightly improve the stability of slope.However,the intensity of the rainfall has more pronounced effects on the slope stability.We also observed that with the application of both geonet and rivets,the integrality of slope can be improved.关键词
三维土工网/边坡稳定性/强度系数折减法/有限元分析Key words
three dimensional geonet/slope stability/the strength coefficient of subtraction/the finite element analysis分类
建筑与水利引用本文复制引用
王广月,王云,孙国瑞..三维土工网防护边坡整体稳定性分析[J].防灾减灾工程学报,2017,37(6):863-870,8.基金项目
国家自然科学基金项目(11372165)资助 （11372165）
