PA-10型钢管柱安装机的研制及在新型PBA工法施工中的应用

Development of PA-10 Steel Pipe Column Mounting Machine and Its Application in New PBA Method

摘要:

介绍了新型PBA工法所使用的PA-10型钢管柱安装机的结构、性能参数与自动调垂原理。对比传统PBA工法，采用PA-10型钢管柱安装机的新型PBA工法具有成孔效率高、调垂精度高、施工周期短、经济效益高等优势。结合哈尔滨市地铁2号线省政府站钢管柱施工案例，中桩的测量放样结果显示安装机调垂精度完全符合设计需求，证明了PA-10型钢管柱安装机的研制是成功的。PA-10型钢管柱安装机的应用，在减轻工人劳动强度的同时，极大地提高了施工的安全系数与施工质量，对于地铁车站建设向机械化、自动化发展方面具有重大意义，也符合现代城市轨道交通建设的发展趋势。

Abstract:

The structure, performance parameters and automatic adjusting verticality principle of PA-10 steel pipe mounting machine, which is used in new PBA method, are discussed. Compared with the traditional PBA method, this new PBA method has the advantages of high efficiency, high precision of adjustable verticality, short construction period and high economic benefit. According to the steel pipe column construction case of Provincial Government station of Harbin metro Line 2, the measurement lofting result of the middle pile shows that the adjusting verticality accuracy meet the design requirements, which proves the successful development of PA-10 steel pipe mounting machine. By the application of PA-10 steel pipe mounting machine, the labor intensity of workers is reduced; and at the same time, both the construction safety coefficient and the construction quality are greatly improved, which has great significance for the development of subway station construction toward the mechanization and automation and is in line with the development trend of modern urban rail transit construction.