| 孔底注浆护壁在砂质含水层长螺旋钻孔灌注桩中的应用 |
| 投稿时间：2009-03-25 修订日期：2009-03-25 点此下载全文 |
| 引用本文：李旭庆.孔底注浆护壁在砂质含水层长螺旋钻孔灌注桩中的应用[J].钻探工程,2009,36(10):61-63.LI Xu-qing. Application of Wall Protection with Grouting Under-borehole in Long-spiral Bored Cast-in-situ Pile on Sandy Aquifer[J]. Drilling Engineering, 2009,36(10):61-63. |
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| 中文摘要:阐述长螺旋钻机在含水砂层施工中钻孔坍塌的原因和孔底注浆护壁的工艺原理，并通过工程实例，介绍孔底注浆护壁工艺在长螺旋钻孔灌注桩中的应用和效果，拓展了长螺旋钻孔灌注桩的适用条件范围。 |
| 中文关键词:孔底注浆 长螺旋钻机 砂质含水层 护壁 钻孔灌注桩 |
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| Application of Wall Protection with Grouting Under-borehole in Long-spiral Bored Cast-in-situ Pile on Sandy Aquifer |
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| Abstract:The paper discussed the reasons of bored hole collapsing in sandy aquifer construction with long-spiral driller and the technological principle of wall protection with grouting under-borehole with an engineering case; and also introduced the application and effect of this technology in long-spiral bored cast-in-situ pile, the application limit for long-spiral bored hole pile was broadened. |
| keywords:grouting under-borehole long-spiral sandy aquifer wall protection bored cast-in-situ pile |
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