| 预应力混凝土管桩的设计及施工研究 |
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| 引用本文： | 王丽云,王军涛.预应力混凝土管桩的设计及施工研究[J].铁道工程学报,2011(6):6-9. |
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| 作者姓名： | 王丽云 王军涛 |
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| 作者单位： | 铁道第三勘察设计院集团有限公司,天津,300251 |
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| 摘 要： | 研究目的:通过某城际铁路无砟轨道路基基底加固处理的工程实例,本文介绍了预应力混凝土管桩复合地基承载力及沉降量的计算方法,以及管桩的施工工艺、施工过程中常见问题及预防措施等。并解决城际铁路高速无砟轨道建设过程中路基地段地基处理沉降控制的关键技术难题。研究结论:预应力管桩具有桩身质量稳定可靠、单桩承载力高、价格低、施工速度快、桩身耐打、穿透能力强、成桩质量检测方便等优点,为提高工程质量、增加经济效益发挥了重要作用,也为解决城际铁路高速无砟轨道建设过程中路基地段地基沉降控制的关键技术难题提供了一种安全可靠的地基处理方法。
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| 关 键 词： | 城际铁路 无砟轨道 预应力管桩 复合地基承载力 复合地基沉降量 施工工艺 |
Research on the Design and Construction of PHC |
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| WANG Li-yun,WANG Jun-tao.Research on the Design and Construction of PHC[J].Journal of Railway Engineering Society,2011(6):6-9. |
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| Authors: | WANG Li-yun WANG Jun-tao |
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| Institution: | WANG Li-yun,WANG Jun-tao (The 3rd Railway Survey and Design Institution Group Corporation,Tianjin 300251,China) |
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| Abstract: | Research purposes:Through a engineering example of inter-city none-ballast track super railway embankment foundation reinforced,this paper introduces the calculated method of PHC composite foundation bearing capacity and settlement,the common problem and precautionary measures in the construction steps and the process etc.And this paper also resolves the key technique of inter-city none-ballast track super railway embankment foundation settlement. Research conclusions:The PHC body quality stability,penetrat... |
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| Keywords: | Inter-city railway none-ballast track PHC composite foundation bearing capacity composite foundation settlement construction steps |
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