LGZ系列全液压多功能桩机及其在多种工法的应用

Application of the LGZ hydraulic multifunctional pile drilling rigin complex stratum

摘要:

LGZ系列全液压多功能桩机拥有可轴向滑移主动钻杆、大扭矩中空式回转动力头和双筒同步卷扬机3项专利技术，具有施工安全、一机多能、传动平稳高效等技术优势。本文介绍了该系列桩机的性能参数、技术特点，及其在螺杆桩、螺旋挤土桩、水泥土搅拌桩、长螺旋钻孔灌注桩、大直径长螺旋钻孔桩等5种工法中的应用。实践证明，LGZ系列全液压多功能桩机可以满足多种桩基工法施工需求，并可扩展到更多工法应用。

Abstract:

LGZ series full hydraulic multi functional pile rigs are featured of three patented technologies, i.e. axial sliding kelly bar, large torque hollow rotary power head and double drum synchronous hoist. They have the technical advantages of construction safety, multiple functions, stable and efficient transmission. This paper introduces the performance parameters and technical characteristics of this series of pile rigs, and their application in construction of five types of piles, including screw pile, screw displacement pile, cement soil mixing pile, CFA pile and large diameter CFA pile. It has been proved that LGZ series full hydraulic multifunctional pile rigs can meet the construction requirements of various pile foundation construction methods and can be extended to application of other construction methods.