| 机电液一体化集土式扩底钻机具的研制与试验 |
| 投稿时间：2018-09-30 修订日期：2019-03-11 点此下载全文 |
| 引用本文：冯美贵,翁炜,蒋睿.机电液一体化集土式扩底钻机具的研制与试验[J].钻探工程,2019,46(6):53-58.FENG Meigui,WENG Wei,JIANG Rui. The soil-collecting bell bottom drilling tool based on the electro-mechanical-hydraulic integrated system[J]. Drilling Engineering, 2019,46(6):53-58. |
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| 基金项目:基金项目：科技部科研院所专项资金项目“集土式智能扩底钻进技术研究”（编号:2010EG130251） |
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| 中文摘要:针对机械式扩底钻具存在扩孔与取土、清孔分离，工序复杂，孔内沉渣难以清理干净，施工效率低，扩孔质量、精度无法保证等问题，研制了机电液一体化集土式扩底钻机具。重点研究集土式扩底钻进施工工艺，集土式扩底钻具的机械结构设计、液压系统和电气控制系统设计，并进行机电液一体化集成试验。结果表明机电液一体化集土式扩底钻机具集扩孔、集土功能于一体，扩底直径准确、扩孔精度高，减少工艺步骤，提高工作效率，满足旋挖钻进扩底桩的施工需求，实现智能化扩底钻进。 |
| 中文关键词:扩底桩 机电液一体化 集土式扩底钻机具 |
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| The soil-collecting bell bottom drilling tool based on the electro-mechanical-hydraulic integrated system |
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| Abstract:In view of the problems of the mechanical bell bottom drilling tool such as the separation of hole reaming from soil collecting and cleaning, complicated process, difficult cleaning of bottom settlements, low drilling efficiency , uncertainty in ensuring the quality and accuracy of reaming, the soil collecting bell bottom drilling tool based on the electro mechanical hydraulic integrated system has been developed. This paper mainly focuses on the drilling technology of soil collecting and bell bottom drilling, the mechanical hydraulic electric control system design for the soil collecting bottom expanding drilling tool, as well as testing of the electro mechanical hydraulic integrated system. The results show that the soil collection bell bottom drilling tool integrates functions of the soil collecting and the reaming to improve the accuracy of the belled diameter and the reaming precision, reduces the drilling procedures and improves the work efficiency, meeting the requirements of belled piles on the rotary drilling process and realizes the intelligently under reamed drilling. |
| keywords:belled pile electro-mechanical-hydraulic integrated system soil-collecting bell bottom drilling tool |
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