| 大口径无循环钻进技术研究及发展 |
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| 引用本文： | 刘三意,刘家荣.大口径无循环钻进技术研究及发展[J].地质与勘探,2000,36(2):22-25. |
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| 作者姓名： | 刘三意 刘家荣 |
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| 作者单位： | 国土资源部勘探技术研究所,廊坊,065000 |
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| 摘 要： | 对大口径无循环施工技术的国内外现状进行了分析，并对旋挖钻斗、捞砂钻斗、卵砾石地层取心钻头、地下连续墙和钻孔用抓斗、旋挖扩底钻斗等施工技术进行了研究，并根据国内现有施工技术水平，研究开发了一系列大口径无循环施工技术和设备。经广大用户生产使用证明，这些施工技术和设备已经达到和超过了进口设备的技术水平，取得了较好的经济效益和社会效益。
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| 关 键 词： | 钻具 大口径 无循环钻进技术 研究 发展 |
RESEARCH AND DEVELOPMENT OF LARGE DIAMETER NON-CIRCULATING DRILLING TECHNOLOGY |
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| LIU San-yi,LIU Jia-rong,LIU Yu-heng,LI Hong,WANG Xing-wu.RESEARCH AND DEVELOPMENT OF LARGE DIAMETER NON-CIRCULATING DRILLING TECHNOLOGY[J].Geology and Prospecting,2000,36(2):22-25. |
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| Authors: | LIU San-yi LIU Jia-rong LIU Yu-heng LI Hong WANG Xing-wu |
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| Abstract: | This paper analyzes present situation of large diameter non-circulating drilling technology at home and abroad, introduces study on rotating cutters, bailing cutters, core bits used in gravel, hammer grab used in diaphragm walls and drilling holes, rotating underreaming cutters and etc.. On the other hand, a series of large diameter non-circulating drilling technology and equipment is developed in accordance with current technical level in China. |
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| Keywords: | large diameter non-circulation technique research |
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