列车荷载对铁路路肩墙抗震稳定性影响研究

以某铁路路肩墙为例,根据设计图纸,首先在不考虑列车荷载的条件下对路肩墙进行抗震能力检算;其次按规范考虑列车荷载对路肩墙进行抗震能力检算;对比了两种情况下路肩墙在7度、8度及9度地震工况下的抗滑动稳定性、抗倾覆稳定性及基底最大应力,分析了列车(活)荷载对路肩墙抗震稳定性的影响;最后提出了相应的减少震后次生灾害的建议,为震后救灾提供了一定的参考和借鉴。

Study on the effect of train load on seismic stability of shoulder wall in railway

Taking a railway shoulder wall as an example, by the design drawings, the author checks the anti-seismic capability ot shoulder wall under the condition of ignoring train load. And the anti-seismic capability of shoulder wall was checked on the condition of considering train load according to codes. By comparative analysis of anti-slide stability, anti-overturning stability and foundation maximum stress in 7, 8 and 9 magni- tude earthquake under those two conditions, this paper analyzes the effect of the train load on seismic stability of shoulder wall. Finally, the sug- gestion of reducing post-earthquake secondary disaster is presented, to provide some references of post-earthquake relief.