郑万高速铁路巴东站异物侵限风险分析

Risk Analysis of Foreign Object Intrusion at Badong Station of Zhengzhou-Wanzhou High Speed Railway

以郑万高速铁路(郑州—万州)巴东站与沪蓉高速公路(上海—成都)并行区域为研究对象,模拟车辆越出高速公路防护栏后以一定初始速度和方向沿坡面的运动情况,分析其对高速铁路正常运营的影响。考虑最不利情况及便于获取车辆最大能量,采用落石分析软件ROCKFALL、SDDA模拟高速公路常见最大质量车辆沿坡面的运动轨迹及动能。结果表明:当仅考虑单一车辆(未发生破碎)以不同方向和大小的初始速度冲下坡面时,车辆停下位置离铁路线外边缘的最小水平距离为16.5 m,未发生侵限行为,不会威胁到高速铁路的正常运营。

Taken the parallel area of Zhengzhou-Wanzhou high speed railway Badong Station and Shanghai-Chengdu expressway as the research object,the vehicle movement along the slope at a certain initial speed and direction after crossing the guardrail of the expressway was simulated,and the influence on the normal operation of the high speed railway were analyzed.Considering the worst-case scenario and facilitating the acquisition of maximum vehicle energy,rock fall analysis software ROCKFALL and SDDA were used to simulate the motion trajectory and kinetic energy of common maximum mass vehicles on highways along the slope.The results show that when only considering a single vehicle(without breaking)rushing down the slope at different initial speeds in different directions and sizes,the closest distance between the stopping position of the vehicle and the outer edge of the railway line is 16.5 m,and no violation behavior has occurred,which will not threaten the normal operation of the high speed railway.