摘要
气举反循环钻孔技术在深长桩施工中的应用具有钻进效率高,成孔质量好,在松散地层中不易发生孔壁坍塌事故等优点。结合济南第三黄河大桥施工实践,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和参数。
The application of the air- lift reverse circulation technology to the construction of the deep - drawn pile has the advantages of the high boring efficiency, high quality of hole formation, and impossible occurrence of hole wall collapse accidents in the unconsolidated ground. Combining with the practical construction of the third Yellow River bridge, this article summarizes the main technical points and parameters of the air - lift reverse circulation drilling construction in particular geologic settings.
出处
《山东交通学院学报》
CAS
2006年第1期75-77,共3页
Journal of Shandong Jiaotong University
关键词
深桩
钻孔技术
气举反循环
参数
deep- drawn pile
boring teehnology
air- lift reverse circtdation
parameter
