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作 者:贾宁[1] 刘颖[1] 孟庆辉[1] 王彪[1] 孙怀军[2]
机构地区:[1]中国电力工程顾问集团华北电力设计院工程有限公司,北京100120 [2]天津市勘察院,天津300191
出 处:《武汉大学学报(工学版)》2013年第S1期281-285,共5页Engineering Journal of Wuhan University
摘 要:采用有限元强度折减法对某变电站39m加筋填土高边坡的稳定性进行分析.提出了土工格栅的模拟方法,研究了格栅受力特征,以及填料对边坡稳定性的影响.格栅受力大致呈三角形分布,底部格栅受力远大于顶部格栅受力.底部和中部格栅最大值出现在靠近坡内侧,顶部格栅最大值出现在靠近边坡外侧.当填料压实到一定程度后,再进一步提高压实度,对减小格栅受力作用不大.增加填料的压实度,对提高边坡的稳定性有重要意义.A 39mreinforced high slope is analyzed by strength reduction method in finite element analysis.Geogrids are included in the FEM model.Geogrid behavior and the influence of fill on slope stability are analyzed.The axial force has a triangle distribution pattern.The geogrid on slope bottom has a higher axial force than that on the geogrid in the slope top.The maximum axial force occurs on the inner part of the slope for the geogrid on the bottom;on other hand it occurs on the outside of the slope for the top geogrid.A higher compaction does not decrease the axial force of the geogrid after it has reached a high value.Increase the degree of compaction of the fill has a significant benefit on the slope stability.
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