| 京开高速公路跨京山铁路立交桥大口径钻孔灌注桩成孔方法 |
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| 引用本文： | 秦品光,章学军,赵志锐. 京开高速公路跨京山铁路立交桥大口径钻孔灌注桩成孔方法[J]. 岩土工程界, 2001, 0(5): 28-29 |
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| 作者姓名： | 秦品光 章学军 赵志锐 |
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| 作者单位： | 浙江有色建设工程有限公司天津分公司.天津 |
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| 摘 要： | 在粉砂、中砂、卵石等复杂地层施工大口径钻孔灌注桩，要尽量缩短钻孔的裸露（成孔）时间、孔壁稳定是基础，选择与各地地层相适应的钻头是关键；同时也要正确使用各钻进参数。
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| 关 键 词： | 铁路立交桥 钻孔灌注桩 成孔 京开高速公路 钻头 |
| 修稿时间： | 2001-02-01 |
THE HOLE-FORMED METHOD FOR ALARGE DIAMETER BORED GROUTING PILE ON JING-KAI HIGH WAY ACROSS JING SHAN RAILWAY INTERCHANGE |
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| QIN Pin-guang,ZHANG Xue-jun,ZHAO Zhi-rui. THE HOLE-FORMED METHOD FOR ALARGE DIAMETER BORED GROUTING PILE ON JING-KAI HIGH WAY ACROSS JING SHAN RAILWAY INTERCHANGE[J]. Geotechnical Engineering World, 2001, 0(5): 28-29 |
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| Authors: | QIN Pin-guang ZHANG Xue-jun ZHAO Zhi-rui |
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| Abstract: | The paper introduces the execution of a large diameter bored grouting pile on Jing-Kai High Way across Jing-Shan Railway Interchange During the execution of a large diameter bored grouting pile in the compound formation such as silt, medium sand, pebble and etc, the exposed time for drilled hole should be reduced as much as possible. The hole wall stability is a foundation and it is very important to select drilling bits which are suitable for various formations. Meanwhile. various drilling parameters should also be used correctly. |
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| Keywords: | large diameter hole forming dado mud drilling bit drilling parametr |
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