8月16日，Helan Mountain Mountain-Boyin High Speed Invpa的分支是我国家通过Helan Mountain的第一个铁路隧道，成功完成了完整的隧道。 Baoyin高速铁路是全国“ 8水平和八个垂直方向”的高速铁路网络的重要组成部分。其中，Yinba的分支机构始于Yinchhuan市，在蒙古境内的Alxa League的Bayanhot市结束。主线长约111公里。作为第一个单线客运隧道，速度为200 km/h，Helan Mountain Tunnel也是该分支线的重要且困难的控制项目。最近连接的Helan Mountain Tunnel长8,792米，位于沙漠盆地和Tenger的黄河的交叉口，位于Arquishan，Interoria，Yinchuan，Yinchuan和Ningxia的左旗的十字路口，它也通过Sandholly Naturove和Sandholly自然保护区以及国民大自然。卫山的储备。 Its ecological environment is sensitive and vulnerable, a high -risk tunnel of class I. After the completion and opening of traffic to the Yinba Baoyin High Speed Railway branch, the design of the railway network between NOWNGY and internal Mongolia will improve even more, strengthening interconnections between regions, promoting ecological protection throughout the route and the coordinated economic development and promotion Immens (Reporters of General Station XU BO Y TAO PENGFEI)