| 基于FLAC3D的桩端后注浆桩沉降特性研究 |
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| 引用本文： | 罗贺文,佴磊,徐燕,王晨. 基于FLAC3D的桩端后注浆桩沉降特性研究[J]. 路基工程, 2016, 0(6): 129-133. DOI: 10.13379/j.issn.1003-8825.2016.06.28 |
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| 作者姓名： | 罗贺文 佴磊 徐燕 王晨 |
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| 作者单位： | 吉林大学建设工程学院, 长春 130026 |
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| 基金项目： | 吉林省交通科技计划项目:钻孔桩桩端后注浆技术应用研究（2011-1-11） |
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| 摘 要： | 以长平高速公路K94+920.9通道桥改扩建工程为依托，运用FLAC3D软件进行数值模拟，对桩端后注浆桩的沉降特性进行了研究。结果表明:进行桩端后注浆后，桩端土的承载能力得到了很大改善，桩顶沉降较普通桩各级荷载下的沉降减小约40%，计算结果与现场实测结果较吻合。
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| 关 键 词： | 通道桥 桩端后注浆 沉降量 沉降特性 数值模拟 |
| 收稿时间： | 2019-11-06 |
Research on Settlement Characteristics of Pile-end Post-grouting Pile Based on FLAC3D |
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| Abstract: | Based on Changping Expressway Passage Bridge (K94+920.9) Expansion Project, the FLAC3D software was adopted to make numerical simulation and study the settlement characteristics of pile-end post-grouting pile. The results show that, after pile-end post-grouting, the bearing capacity of the pile end soil has been greatly improved, the settlement of pile top is about 40% smaller than that of ordinary pile at all levels of loads. The calculated results are consistent with the field test results. |
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