一种基于QFD/TRIZ的高压铁塔微桩成型装备设计

Design of Micro-pile Forming Equipment for HV Steel Tower Based on QFD and TRIZ

摘要:

高压输电线路铁塔常位于地形条件苛刻、地质条件复杂、气象状况多变的地区，这使得大型钻孔设备难以到达施工现场，基坑开挖大多只能采用人工挖掘，但人工挖掘难以挖出变直径桩孔。为了减轻人工强度和施工风险并提高施工效率，提出了一种成孔设备设计方案。首先，分析了对当前桩孔钻进施工的现状以及其中存在的问题与用户需求；然后，通过质量功能展开方法从得到的用户需求中发掘出产品设计要求；最后利用发明问题解决理论求解设计要求的冲突，得到组合式变径成孔设备方案。该方案将实现成孔设备的可便捷拆卸装配以及连续变径成孔等功能，可有效地提高变径桩成孔施工的效率和安全性，相对于人工桩孔挖掘具有明显优势。

Abstract:

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.