| 巨厚松散层裸孔施工技术措施 |
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| 引用本文： | 钟强,钟明.巨厚松散层裸孔施工技术措施[J].山东地质,2013(10):73-75. |
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| 作者姓名： | 钟强 钟明 |
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| 作者单位： | 山东省煤田地盾局第一勘探队,山东滕州277500 |
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| 摘 要： | 针对巨厚松散层在钻孔施工中易出现钻孔孔壁坍塌、掉块、缩径，造成埋钻、粘钻、卡钻，找不到原孔而形成岔孔等钻孔事故，简述了在巨厚松散层钻孔裸孔安全施工的要点和注意事项。
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| 关 键 词： | 松散层 钻孔施工 孔斜 岔孔 压力平衡 泥浆 |
Construction Technology of Bare Holes in Thick Unconsolidated Layers |
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| ZHONG Qiang,ZHONG Ming.Construction Technology of Bare Holes in Thick Unconsolidated Layers[J].Geology of Shandong,2013(10):73-75. |
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| Authors: | ZHONG Qiang ZHONG Ming |
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| Affiliation: | ( First Exploration Brigade of Shandong Coalfield Geology Bureau, Shandong Tengzhou 277500, Shandong Tengzhou 277500, China) |
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| Abstract: | Pointing to problems occurred in drilling construction in thick unconsolidated layers, such as hole walls collapse, fall - block, reducing diameter which will cause burying drilling, sticking drilling, can not find the original holes and form forked drilling holes. Countermeasures and precautions for safe construction in thick unconsolidated layers have been introduced briefly. |
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| Keywords: | Foundation hole deviation forked holes pressure balance mud |
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