| 软土地基大直径超深长钻孔灌筑桩施工技术 |
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| 引用本文： | 贾优秀.软土地基大直径超深长钻孔灌筑桩施工技术[J].铁道建筑技术,2011(1):8-12,37. |
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| 作者姓名： | 贾优秀 |
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| 作者单位： | 中铁十二局集团第四工程有限公司,西安,710021 |
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| 摘 要： | 以沪杭铁路客运专线跨沪杭高速公路特大桥（88．8＋160＋88．8）m自锚上承式拱桥主墩桩基施工为例，从设备选型、钻孔工艺、水下混凝土灌筑以及质量控制等方面介绍软土地基上大直径、超深长桩基的施工技术。
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| 关 键 词： | 软土地基 桩基 钻机 质量控制 |
Construction Technologies of Extra Deep and Long Drilling Piles with Large Diameters on Soft Soil Foundations |
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| Jia Youxiu.Construction Technologies of Extra Deep and Long Drilling Piles with Large Diameters on Soft Soil Foundations[J].Railway Construction Technology,2011(1):8-12,37. |
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| Authors: | Jia Youxiu |
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| Institution: | Jia Youxiu(China Railway 12~(th) Bureau Group Co.Ltd.,Xi'an 710021,China) |
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| Abstract: | In light of the construction practice of main pier pile foundations of the(88.8+160+88.8)m self-anchored deck arch bridge in Shanghai-Hangzhou Extra-large Bridge crossing Shanghai-Hangzhou Expressway,this paper introduces the construction technologies of extra deep and long pile foundations with large diameters on soft soil foundations from the aspects of equipment type selection,drilling techniques,and underground concreting,as well as quality control. |
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| Keywords: | soft soil foundation pile foundation rig quality control |
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