| 风动潜孔钻跟管钻具在松散堆积体中的膏浆快速成幕技术的应用 |
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| 引用本文： | 刘万锁,李国保. 风动潜孔钻跟管钻具在松散堆积体中的膏浆快速成幕技术的应用[J]. 西北水电, 2011, 0(5): 33-36 |
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| 作者姓名： | 刘万锁 李国保 |
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| 作者单位： | 1. 咨询西北公司黄登监理中心,云南省怒江州,671406
2. 中国水电基础工程局,天津,301700 |
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| 摘 要： | 黄登水电站导流洞进口子围堰工程中,成功运用了风动潜孔同心钻扩孔式跟管钻具。孔口采用封闭式套管内自下而上边拔边灌的膏浆灌浆施工方案,主要在松散堆积体的枯期围堰内形成了一道防渗帷幕轴线,最大可能地缩短了工期,使重力式混凝土围堰及导流洞后续工程能在汛前和汛期得以顺利施工,确保了整体工程的防洪渡汛及导流洞工程的按期分流。
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| 关 键 词： | 跟管钻具 堆积体 膏浆快速 成幕技术 应用 |
Application of pneumatic DTH drilling with casing in loose accumulation body for fast forming of paste-slurry curtain |
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| LIU Wan-suo,LI Guo-bao. Application of pneumatic DTH drilling with casing in loose accumulation body for fast forming of paste-slurry curtain[J]. Northwest Water Power, 2011, 0(5): 33-36 |
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| Authors: | LIU Wan-suo LI Guo-bao |
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| Affiliation: | LIU Wan-suo1,LI Guo-bao2(1.Huangdeng Supervision Center of Northwest Water and Hydropower Engineering Consulting & Supervision Company,Nujiang 671402,China,2.Sinohydro Foundation Engineering Company Ltd,Tianjin 301700,China) |
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| Abstract: | In the cofferdam works for the diversion tunnel inlet of the Huangdeng hydropower project,pneumatic DTH drilling with casing was successfully applied.The construction scheme of ascending stage paste slurry grouting in the sealed casing pipe is adopted for forming an impervious curtain axis in the dry-season cofferdam of loose accumulation body,which shortens the construction period as much as possible,makes the gravity concrete cofferdam and subsequent diversion works successfully constructed before and dur... |
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| Keywords: | drilling with casing accumulation body paste-slurry curtain fast forming technology |
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