| 刚性桩加固软土路基设计方案探讨 |
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| 引用本文： | 方胜,张俊云,黄洪.刚性桩加固软土路基设计方案探讨[J].路基工程,2010,0(6):160-163. |
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| 作者姓名： | 方胜 张俊云 黄洪 |
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| 作者单位： | 1.西南交通大学土木工程学院, 成都 610031 |
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| 摘 要： | 采用有限元软件Plaxis建立了四个模型,通过对比模型计算结果,分析了土工格栅和桩帽对刚性桩加固软土路基中的作用,并与柔性桩加固软土路基的效果进行对比。结果表明:土工格栅对调节桩土应力比、均化沉降有一定作用;桩帽对提高桩土应力比、减小差异沉降的作用较明显;与柔性桩相比,刚性桩更能有效控制路堤总沉降和约束地基土体的侧向位移。
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| 关 键 词： | 刚性桩 路堤 有限元 桩土应力比 |
| 收稿时间： | 2019-11-10 |
Discussion on Design Program of Rigid Pile Reinforced Soft Soil Foundation |
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| Authors: | FANG Sheng ZHANG Jun-yun HUANG Hong |
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| Institution: | 1.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;2.China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,China) |
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| Abstract: | Four models are established using finite element software Plaxis.Through comparison of the results of these models,the effect of geogrid and pile cap in rigid pile reinforced soft foundation are analyzed.The result is compared with that of flexible pile reinforced soft foundation.It is shown that geogrid has a certain effect on adjusting pile-soil stress ratio and homogenizing settlement.Pile caps can obviously raise pile-soil stress ratio and reduce differential settlement.Compared with flexible pile,rigid piles can more effectively control embankment total settlement and restrain lateral displacement of foundation soil mass. |
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| Keywords: | rigid pile embankment finite element pile-soil stress ratio |
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