| 金塘大桥3号主桥墩ZK8号钻孔事故处理技术 |
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| 引用本文： | 丁旭亭. 金塘大桥3号主桥墩ZK8号钻孔事故处理技术[J]. 探矿工程, 2010, 37(9): 61-63 |
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| 作者姓名： | 丁旭亭 |
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| 作者单位： | 浙江省岩土基础公司,浙江宁波315040 |
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| 摘 要： | 针对金塘大桥3号主桥墩ZK8号钻孔烧钻断杆事故及事故处理不当发生的卡杆二次事故,认真分析了事故原因,制订了严密的钻具打捞方案,成功打捞了孔内钻具,为后续钻孔灌注桩的施工排除了障碍。介绍了事故状况及处理技术。
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| 关 键 词： | 钻孔事故 烧钻 扩孔 切割 反杆 |
| 收稿时间： | 2010-04-01 |
| 修稿时间： | 2010-04-01 |
Treatment Technology of Accident in a Borehole of Main Pier of Jintang Bridge |
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| DING Xu-ting. Treatment Technology of Accident in a Borehole of Main Pier of Jintang Bridge[J]. Exploration Engineering:Rock & Soil Drilling and Tunneling, 2010, 37(9): 61-63 |
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| Authors: | DING Xu-ting |
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| Affiliation: | DING Xu-ting(Zhejiang Geotechnical Foundation Co.,Ningbo Zhejiang 315040,China) |
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| Abstract: | Accident causes were analyzed on the bit-burnt,drilling rod broken accident and the secondary accident of rod blocking in a borehole of main pier of Jintang bridge.Drilling tool-fishing plan was made and was successfully implemented.The paper introduced the accident situation and the treatment technology. |
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| Keywords: | borehole accident bit-burnt borehole reaming cutting rod lifting |
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