The case study of non-excavating directional drilling technique in power engineering is introduced, flow sheet, construction equipment and pipe installation of non-excavating technique are analysed.
结合河南省开洛高速公路非开挖铺设管线工程 ，简要分析了水平孔钻进弯曲机理 ，详细介绍了工程施工技术方法及效果。
The case study of non-excavating directional drilling technique in power engineering is introduced, flow sheet, construction equipment and pipe installation of non-excavating technique are analysed.
结合河南省开洛高速公路非开挖铺设管线工程 ，简要分析了水平孔钻进弯曲机理 ，详细介绍了工程施工技术方法及效果。
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