摘要
以工程实例为背景,运用Midas GTS NS软件对高速公路工程中高陡路基加铺土工格栅的加固效果进行计算分析。结果表明土工格栅能够明显降低路堤的变形量,有效控制不均匀变形,提高坡体安全系数,增强该类工程的整体稳定性。通过有限元模型模拟坡体内加铺不同层数土工格栅的加固情况,经过数值计算分析,发现格栅的铺设层数并非越多越好,当超过最佳铺设层数后,增铺土工格栅,对提高路堤安全性及减小沉降量都不能起到明显效果。
Based on a engineering practice, the Midas GTS NS software was used to calculate and analyze the reinforcement effect of overlaying geogrid on high-steep subgrade in expressway engineering. The results showed that, the geogrid can effectively reduce the deformation volume of the embankment with the control of uneven deformation, and improve the safety factor of the slope, so that to enhance the overall stability of the engineering. Through the finite element model, the reinforcement using different layers of geogrid in the slope was simulated to carry out the numerical calculation and analysis, and it can be seen that the geogrid layer was not the more the better. Overlaying the geogrid more than the optimal layer number was not obvious to improve the safety of embankment and to reduce the settlement.
作者
李凤岭
LI Feng-ling(Shanxi Transportation Survey&Design Institute Co.,Ltd.,Taiyuan,Shanxi 030032,China)
出处
《山西交通科技》
2021年第4期14-16,共3页
Shanxi Science & Technology of Transportation
关键词
高陡路基
土工格栅
数值分析
high-steep subgrade
geogrid
numerical analysis
