Steel towers of HV transmission line are often located in areas with harsh topographic conditions,complex geological conditions and changing meteorological conditions,which makes it difficult for large-scale drilling equipment to reach the construction site,and most of the pit excavation can only be done by manual digging,but it is difficult to dig variable-diameter pile holes by manual digging.In order to reduce the labor intensity and construction risk and improve the construction efficiency,a design scheme of hole-making equipment is proposed.Firstly,the current situation of pile hole drilling construction is analyzed as well as the existing problems and user requirements.And then,the product design requirements are discovered from the user requirements by the quality function expansion method.Finally,the invention problem solving theory is utilized to solve the conflict of design requirements,and the combined variable-diameter hole-making equipment scheme is obtained.The solution will realize the functions of convenient disassembly and assembly of hole-making equipment and continuous variable-diameter hole-making,which can effectively improve the efficiency and safety of variable-diameter pile hole-making construction,and has obvious advantages compared with manual pile hole excavation.
NETL
NSTL
维普
万方数据
