The combined guiding hole technology of large diameter DTH hammer and long screw-pile driver

摘要：

　　From an engineering reality, in order to solve complex stratigraphic drilling problems and improve construction efficiency, the method of combination of large diameter DTH hammer and the pile driver with a special long spiral drill multifunctional is proposed.This method has the characteristics of simple equipment, fast, effective, low cost etc.It can quickly drill through layers of gravel, stone, weathered bedrock, reach to depth up to above 25m.It has been widely used in embedded engineering methods of precast piles, the long spiral rock-socketed piles, piles into the rock currently.The study of this construction method has not only wide range of applications, but also has a wide range of practical and theoretical significance.

关键词： DTH Hammer long spiral compound drilling tool technology of guiding hole

作者: Liu Qixia Fan Liang

作者单位: School of Civil Engineering and Architecture,Wuhan University of Technology,Hubei Wuhan 430063,China;Civil Engineering and Architecture College,Henan University of Technology Zhengzhou 450001,China

会议类型: 国际会议

会议名称: the 3nd International Conference on Digital Manufacturing & Automation (第三届数字制造与自动化国际会议(ICDMA 2012))

会议地点: 桂林

会议语种:英文

页码: 1220-1226

在线出版日期: 2012-08-01（万方平台首次上网日期，不代表论文的发表时间）