兰新线百里风区不同型式挡风墙防风效果评估

兰新线百里风区是世界上内陆风速最高、铁路风灾最为严重的地区之一,挡风墙是百里风区的主要防风设施。根据现场实车运行试验、挡风墙空气动力学地面试验、数值计算结果,分析和评估百里风区各种型式的挡风墙以及挡风墙各种过渡段的防风效果,指出既有挡风墙工程的薄弱环节,为今后防风工程补强设计提供依据。

Evaluating the Effects of Different Windbreak Walls Along the 100-Kilometer Wind Area Along Lanzhou-Wulumuqi Railway

The 100-kilometer wind area along Lanzhou-Wulumuqi railway is one of the inland wind area with highest wind speed and worst railway wind disasters in the world.Windbreak wall is the major windbreak facility in the 100-kilometer wind area.According to the field train operation experiments,ground experiments of windbreak wall dynamics and data calculation results,the author analyzes and evaluates the effects of different types of windbreak walls and the transition section of each type of windbreak walls,and then points out the weakness of current windbreak walls to give reference for the strengthening of windbreak engineering in the future.