首页|不同约束条件下普速铁路平面线形重构效果对比分析

不同约束条件下普速铁路平面线形重构效果对比分析

Comparative Analysis on Reconstruction Effect of Horizontal Alignment of Conventional Railway with Different Constraint Conditions

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针对普速铁路平面线形重构设计问题,结合相关规范要求系统梳理了平面线形参数限制因素.在此基础上,以整体平面调整量平方和最小为平面线形重构设计目标函数,提出了无约束、原始台账约束和多参数约束条件下的平面线形重构原则,并结合实测数据对比分析了不同约束条件下平面调整量、曲线参数和行车安全性的差异.结果表明:采用多参数约束条件所得平面线形既可达到现场工程量较小,又可满足曲线半径、缓和曲线长度和行车安全性要求,其重构设计结果最优.建议在普速铁路数字化捣固方案设计时,采用多参数约束条件对平面线形进行重构设计,结合现场实际和相关规范要求对曲线半径和缓和曲线长度进行适当调整.
This article focused on the horizontal alignment reconstruction design issues of conventional railway,and the limiting factors of horizontal alignment parameters in accordance with relevant regulatory requirements were systematically sorted out.On this basis,the objective function of horizontal alignment reconstruction design was to minimize the sum of squares of the overall plane adjustment amount.The principles of horizontal alignment reconstruction under unconstrained,original ledger constraints,and multi parameter constraints were proposed,and the differences in plane adjustment amount,curve parameters,and driving safety under different constraint conditions were compared and analyzed based on measured data.The results show that the horizontal alignment obtained by multi parameter constraint conditions can achieve a smaller on-site engineering quantity,as well as meet the requirements of curve radius,transition curve length,and driving safety,which has the best reconstruction design result.It is recommended to use multi parameter constraint conditions to reconstruct the horizontal alignment in the design of digital tamping schemes for conventional speed railways,and adjust the curve radius and transition curve length appropriately based on on-site conditions and relevant regulatory requirements.

conventional railwaydigital tampinghorizontal alignment reconstruction designconstraint conditionmulti parameter constraintsadjustment amount

丁有康、王晓凯、楼梁伟、杨立光、张也

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北京铁科特种工程技术有限公司, 北京 100081

中国铁道科学研究院集团有限公司 铁道建筑研究所, 北京 100081

中国铁道科学研究院集团有限公司 高速铁路轨道系统全国重点实验室, 北京 100081

普速铁路 数字化捣固 平面线形重构设计 约束条件 多参数约束 调整量

中国国家铁路集团有限公司科技研发计划中国铁道科学研究院集团有限公司项目

N2021G0482022YJ092

2024

10.3969/j.issn.1003-1995.2024.02.06

铁道建筑
中国铁道科学研究院

铁道建筑

北大核心
影响因子：0.623
ISSN：1003-1995
年,卷(期)：2024.64(2)
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