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介绍了气举反循环钻孔技术的原理及其特点,并根据武汉新港团风港区集疏运通道罗霍洲特大桥施工实践,总结出了特定地质条件下,气举反循环钻孔施工的技术要点、参数和钻头的结构形式。
The principle and characteristics of gas lift reverse circulation drilling technology are introduced. According to the construction practice of the Luohuzhou Super Large Bridge, which is located at the Duanfeng Port of Wuhan New Port, the conclusion is drawn that under the specific geological conditions, the gas lift reverse circulation drilling The technical points, parameters and structure of the drill.