斜井导井钻孔精度控制技术与应用  

Precision Control Technology and Application of Inclined Shaft Pilot Hole Drilling

作　　者：张任兵 于谦 ZHANG Ren-bing;YU Qian(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2023年第9期196-199,共4页Yunnan Water Power

摘　　要：斜井施工常常被视为地下工程施工的重点和难点,长斜井更是如此。斜井导井的钻孔精度及成孔质量直接影响斜井整体施工质量。以浙江缙云抽水蓄能电站为例,讲述“定向钻机施工导孔+反井钻机反拉扩孔形成导井”的施工工艺在长斜井施工导井中的应用与实践经验。The construction of inclined shafts is often regarded as the key and difficult point of underground engineering construction,especially for long inclined shafts.The drilling accuracy and drilling quality of the inclined shaft pilot shaft directly affect the overall construction quality of the inclined shaft.Taking Zhejiang Jinyun Pumped Storage Power Station as an example,this paper describes the application and practical experience of the construction technology of"directional drilling pilot hole+reverse pulling and reaming of raise boring machine to form pilot shaft"in the construction of long inclined shaft pilot shaft.

关 键 词：抽水蓄能电站 长斜井施工 定向钻 高精度导井 

分 类 号：TV554[水利工程—水利水电工程]