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用普通硬质合金和金刚石钻头钻进双江水电站坝体监测孔 ,均因孔斜超限而报废 ,使用气动潜孔锤钻进工艺 ,成功地完成了坝体监测孔的施工 ,取得了良好的效果。着重介绍了施工技术措施。
Using ordinary cemented carbide and diamond bits to drill into the monitoring wells of the dam of Shuangjiang Hydropower Station, they were all scrapped due to the over-hole of the inclined holes. The drilling process of the pneumatic down-the-hole hammer was used successfully to complete the construction of the monitoring holes in the dam and achieved good results Effect. Emphatically introduced the construction technology and measure.