| 长白山地区杂填土地段嵌岩桩施工技术 |
| 投稿时间：2018-01-09 修订日期：2018-01-09 点此下载全文 |
| 引用本文：胡子勤.长白山地区杂填土地段嵌岩桩施工技术[J].钻探工程,2018,45(3):81-83.HU Zi-qin. Construction Technology of Rock-socketed Pile in Miscellaneous Fill of Changbai Mountain Area[J]. Drilling Engineering, 2018,45(3):81-83. |
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| 中文摘要:杂填土地段填土成分复杂，土层松散，力学强度低，桩基施工难度较大，尤其是填土时间较短的地段。以长白山地区杂填土地段施工钻孔灌注桩为实例，分析了不同成孔方法的适用情况，最后选择冲击钻进成孔。介绍了施工工艺、施工难点和应对措施、泥浆处理等，阐述了在厚层杂填土地段嵌岩桩的施工技术。 |
| 中文关键词:桩基 杂填土 嵌岩桩 超前钻进 冲击钻进 |
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| Construction Technology of Rock-socketed Pile in Miscellaneous Fill of Changbai Mountain Area |
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| Abstract:Because of the complex composition, loose soil layers and low mechanical strength in miscellaneous fill site, pile foundation construction is difficult, especially for where being newly filled. With a case of bored cast-in-place pile constructed in miscellaneous fill of Changbai Mountain area, the impact drilling technology is selected after the analysis on the applicability of different holing methods. This paper introduces the construction process, difficulties and countermeasures as well as mud treatment, expounds the construction technology of rock-socketed piles in thick-layer miscellaneous fill site. |
| keywords:pile foundation miscellaneous fill rock-socketed pile advanced drilling impact drilling |
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