| 全回转套管钻机和全套管施工工艺的研究 |
| 投稿时间：2013-07-24 修订日期：2013-07-24 点此下载全文 |
| 引用本文：宋志彬,冯起赠,和国磊,等.全回转套管钻机和全套管施工工艺的研究[J].钻探工程,2013,40(9):29-36.SONG Zhi-bin,FENG Qi-zeng,HE Guo-lei,et al. Research on Casing Rotator and Full Casing Construction Technology[J]. Drilling Engineering, 2013,40(9):29-36. |
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| 基金项目:科技部科研院所技术开发研究专项资金项目“2000全回转套管钻机、钻具及工艺”（2011EG130025） |
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| 中文摘要:简述了全回转套管钻机的国内外研究现状和应用领域。主要介绍了QHZ-2000型全回转套管钻机的设计结构、技术参数、关键技术。分析了全回转套管柱、冲抓斗、清障钻具的结构原理和应用特点。总结了全回转套管灌注桩、全套管清障和全套管拔桩的施工流程、机理和适用范围。研究填补了国内自主研发全回转套管钻机的空白，是一种适合在城市施工的绿色环保、广谱安全的无循环桩基施工新设备和新技术。 |
| 中文关键词:全回转套管钻机 全套管施工 套管钻具 全套管清障 全套管拔桩 |
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| Research on Casing Rotator and Full Casing Construction Technology |
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| Abstract:The paper summarized the research actuality and application fields both in China and abroad. The design structure, specification and key techniques of QHZ-2000 casing rotator are elaborated. The paper analyzes the structure principle and the application characteristics of casing string, hammer grab and drilling tools for underground obstacles removal; and also summarizes the construction process, mechanism and applicable scope of full casing cast-in-place pile, underground obstacles removal and pile extraction in full casing. This study fills the gap of independent research and development of casing rotator in China; it is environmental, universal and safe piling equipment and a new foundation drilling method with no mud used in urban construction and foundation works. |
| keywords:casing rotator full casing construction casing tools underground obstacles removal in full casing pile extraction in full casing |
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