| 钻孔灌注桩孔径扩大与塌孔的预防措施 |
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| 引用本文：李巨龙,董青红.钻孔灌注桩孔径扩大与塌孔的预防措施[J].钻探工程,1997,(4):14-16.. Measures for Preventing The Bored Pile Hole from Enlarging and Caving[J]. Drilling Engineering, 1997,(4):14-16. |
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| 李巨龙 董青红 |
| 中国矿业大学!徐州，221008 |
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| 中文摘要:为保证桩基施工质量，节省灌注砼费用，采取了一系列相应措施预防孔径扩大和塌孔。着重介绍了有关预防措施和技术经济效果。 |
| 中文关键词:钻孔灌注桩,充盈系数,孔径扩大,预防措施 |
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| Measures for Preventing The Bored Pile Hole from Enlarging and Caving |
| Li Julong Dong qnghong |
| China University of Mining industry Xuzhou 221008 |
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| Abstract:In order to ensure the pile foundation construction quality and reduce concreting cost, a variety of measures have been taken to prevent the borehole from enlarging and caving with focus on the related preventative measures and techno-economic benefits. |
| keywords:bored pile, factor of filling, borehole enlargement, preventative measures |
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