| 深厚杂填土铁路桥梁桩基础设计 |
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| 引用本文： | 庞元志.深厚杂填土铁路桥梁桩基础设计[J].铁道建筑技术,2014(1):13-16. |
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| 作者姓名： | 庞元志 |
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| 作者单位： | 中铁第五勘察设计院集团有限公司,北京102600 |
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| 摘 要： | 以阳泉市白荫支线跨煤矿采空区铁路桥为例,对深厚杂填土地区铁路桥梁桩基础施工方法进行了比选;同时通过Midas建模分析,得到了影响铁路基础刚度提高的关键因素;并针对深厚填土地区特点,计算了桩基础负摩阻力和桩基础承载力,总结了深厚杂填土地区桩基设计采取的措施。
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| 关 键 词： | 杂填土 桩柱式基础 刚度 负摩阻 |
Pile Foundation Design of Deep Miscellaneous Backfilling Railway Bridge |
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| Pang Yuanzhi.Pile Foundation Design of Deep Miscellaneous Backfilling Railway Bridge[J].Railway Construction Technology,2014(1):13-16. |
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| Authors: | Pang Yuanzhi |
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| Institution: | Pang Yuanzhi (China Railway Fifth Survey and Design Institute Group Co. Ltd, , Beijing 102600, China) |
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| Abstract: | Taking railway bridge of Baimeng Branch Line across mined-out area in Yangquan City as an example, the com- parison of the construction ways of railway bridge pile foundation in deep miscellaneous backfilling area is introduced in the paper, and the influence factors of improving the rigidness of foundation are analyzed by Midas modeling. At last, in view of the features of deep miscellaneous area, the pile foundation bearing capacity and negative friction is calculated and methods of pile foundation design in deep miscellaneous area are summarized. |
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| Keywords: | miscellaneous backfilling pile foundation rigidness negative friction |
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