| PZ系列组合式牙轮钻头在大直径嵌岩桩施工中的应用效果 |
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| 引用本文： | 阮广招 陈亨顺. PZ系列组合式牙轮钻头在大直径嵌岩桩施工中的应用效果[J]. 福建地质, 1995, 14(2): 144-148 |
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| 作者姓名： | 阮广招 陈亨顺 |
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| 作者单位： | 福建省地质工程公司 |
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| 摘 要： | 本文通过大口径桩孔基岩钻进，探讨了ＰＺ系列组合式牙轮钻头结构特点、合理钻进参数的确定及碎岩机理。工程实践证明，牙轮钻头是我国目前大直径桩孔嵌岩施工较为理想的工具，应用效果良好。
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| 关 键 词： | 桩孔 牙轮钻头 碎岩机理 嵌岩桩 工程施工 |
Application of the PZ Series Composite Roller-Type Bits to the Drilling of A Large -Diameter Batholith -Inserted Pile |
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| Ruan Guangzhao,Chen Hengshun,Pan Tianyu. Application of the PZ Series Composite Roller-Type Bits to the Drilling of A Large -Diameter Batholith -Inserted Pile[J]. Geology of Fujian, 1995, 14(2): 144-148 |
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| Authors: | Ruan Guangzhao Chen Hengshun Pan Tianyu |
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| Abstract: | his paper reports on the application of PZ series composite roller -type bit to the drilling of a largediameter batholith -inserted pile, and focuses on the discussion of structures of the PZ series composite roller -type bits, the determination of rational drilling parameters and the rob- crushing mechanism of the bits. It is concluded that the roller- type bit is a more ideal tool of drilling a large diameters batholithinserted pile at present in China. The roller- type bit has produced good results in the construction of pile foundation. |
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| Keywords: | insert batholith pile rock-crushing mechanism roller -type bit |
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