跨座式旅游观光单轨同侧曲线道岔设计
仵叔强
Turnout Design of Same-side Curved Track for Straddle Tourism Monorail
WU Shuqiang
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作者信息:中铁宝桥集团有限公司，721006，宝鸡
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Affiliation:China Railway Baoji Bridge Group Co., Ltd., 721006, Baoji, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.07.049
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中图分类号/CLCN:U232
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栏目/Col:研究报告
摘要:
［目的］某景区的旅游轨道项目为单线线路，为了提高游客的输送效率，需在既有曲线线路中对称布置两组单开曲线道岔，因此需要设计一种同侧曲线道岔，以解决实际工程问题。［方法］首先对道岔设计需求进行了研究，确定了同侧曲线道岔的基本线形；考虑道岔动作时间、支承形式及景观设计要求等因素，比选各道岔类型；提出线形设计原则及要点，并对动能损失、未被平衡的离心加速度、未被平衡的离心加速度增量等道岔设计参数进行评估分析；考虑既有线路的线形和道岔的安装空间、安装方式等因素进行线形设计和方案设计，以满足道岔的性能指标要求和特殊设计需求；根据列车荷载等因素对道岔的主要构件进行有限元分析。［结果及结论］推荐的道岔类型为单回转替换梁型同侧曲线道岔，其具有结构简单可靠、技术经济性高等优点，能够满足道岔布置时的特殊需求。
Abstracts:
［Objective］ The tourism rail project at a scenic area is a single-line route. To enhance tourists transportation efficiency, it is required to arrange two sets of single-opening curved track turnout symmetrically within the existing curved sections. Therefore, it is necessary to design a turnout for same-side curved track to solve this practical engineering problem. ［Method］ Initially, the design requirements for the turnout are investigated, and the basic alignment of the same-side curved track turnout is determined. Various turnout types are compared, considering factors such as turnout action time, support form, and landscape design requirements. Design principles and key points of alignment are proposed, and parameters such as kinetic energy loss, unbalanced centrifugal acceleration, and unbalanced centrifugal acceleration increment are evaluated. The alignment and scheme designs are completed by considering factors like the alignment of the existing line, the installation space and method of turnout to meet the requirements of performance indicators and specific design needs of the turnout. Finite element analysis is conducted on the main components of the turnout based on factors including train load. ［Result & Conclusion］ The recommended turnout type is a single-crossing replacement beam type same-side curved turnout, which offers advantages such as simple and reliable structure, and high technical-economic efficiency, meeting the special requirements for turnout arrangement.
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