基于影响因素分析的高铁站台设备防侵限研究

Research on the anti-intrusion clearance of high-speed railway platform equipment based on the analysis of influencing factors

预防站台设备侵限是铁路房建部门把控高铁行车安全的重点,如何确保站台帽石、侧立面找平层不侵入限界,是一项重要的课题。文章通过对高速铁路站台帽石松动外移和侧立面找平层外凸等设备侵限的原因进行统计、计算和分析,辨识主要原因和影响因素,并针对性地给出整治解决方案和预防控制措施。分析结果表明,站台帽石松动外移是侵限最主要原因,施工工艺和环境变化是站台帽石松动主要影响因素;加固站台帽石、部分凿除、整体切割是站台设备侵限后整治的主要方法;站台帽石底部嵌入扁铁、帽石底部拉槽、帽石底部插入U型钢筋以及站台翼沿外侧增设细石混凝土冲劲带是站台设备侵限前预防的主要措施,且被实践证明效果良好。

Ensuring that platform equipment does not encroach upon clearance areas is a pivotal concern for railway housing construction departments in maintaining the operational safety of high-speed railways.Specifically,preventing the platform capstone and side facade leveling layer from invading clearance areas has emerged as a critical issue.This article employs statistical analysis,calculations,and examination of factors contributing to equipment intrusions,such as the loosening and outward displacement of the platform capstone and the convex leveling layer of side facades on high-speed railway platforms.By identifying the primary causes and influencing factors,this article provides targeted remediation solutions and preventioncontrol measures.The results of the analysis indicate that the loosening and outward displacement of platform capstones constitute the primary reasons for intrusion limitations,with changes in construction technology and environmental conditions serving as the key influencing factors.Remediation methods for platform equipment intrusion primarily involve reinforcing the platform capstone,as well as partial chiseling and integral cutting.To prevent platform equipment from encroaching upon limits,effective measures include embedding flat iron at the bases of platform capstones,pulling grooves at the bottom of capstones,inserting U-shaped steel bars at the bottom of capstones,and adding fine stone concrete impulse belts to the outside of platform wing edges.These measures have proved to be effective in practical applications.