基于Geo-Slope的抗滑桩加固路堤的数值模拟  

Numerical Simulation on Embankment Reinforced by Anti-slide Piles by Geo-Slope Software

作　　者：范建彬 洪宝宁[1,2] 周斌[1,2] 刘鑫[1,2] 董斌[1,2] 

机构地区：[1]河海大学岩土力学与堤坝工程教育部重点实验室,南京210098 [2]河海大学岩土工程科学研究所,南京210098

出　　处：《河南科学》2015年第12期2156-2159,共4页Henan Science

基　　金：中央高校基本科研业务费专项资金资助(2014B04914)

摘　　要：依托相关工程背景,运用有限元软件Geo-Slope模拟路堤分层填筑的施工过程,以了解路堤的变形特征.针对填筑过程中出现的滑塌现象,采用抗滑桩加固路堤.选取抗滑桩的桩位、桩身弹性模量、桩长这三个参数进行数值模拟,分析研究出其敏感性为:桩位在坡脚的抗滑桩能有效控制路堤最大水平位移,且更具有可操作性;桩身弹性模量的提高有利于限制路堤最大水平位移;穿过危险滑动面的桩,其桩长对路堤最大水平位移的限制作用不明显.考虑到施工质量控制及成本控制,应该选择合适的桩身弹性模量及桩长.Based on relevant engineering background, embankment layered filling construction process was simulated by finite element Geo-Slope software to understand the deformation characteristics of embankment. For the landslide phenomenon occurred during the process, anti-slide pile was used to reinforce the embankment. By selecting pile position, pile elastic modulus, pile length to analyze, the result of three parameters sensitivity analysis showed as follows. In the toe of the embankment, anti-slide pile can effectively control the maximum horizontal displacement, and more operational; Pile elastic modulus increase in favor of limiting the maximum horizontal displacement of the embankment; When piles pass through dangerous sliding surface, the pile length limiting the maximum horizontal displacement of embankment is not obvious. Taking the construction quality control and cost control into account, engineering designer should select the appropriate pile elastic modulus and pile length.

关 键 词：Geo-Slope 抗滑桩 桩位 弹性模量 桩长 施工 

分 类 号：TU473[建筑科学—结构工程]