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“大西高铁从7月1日开通以来就异常火爆.西安到太原的客流量从800多人增加到2000人以上.上座率均超过110%,甚至出现了一票难求的现象”。看着这一则则激动人心的消息.曾参加过大西高铁建设的中铁十一局集团二公司员工们不禁倍感自豪。二公司承建的大西高铁站前12标全长12.74公里,其中马家庄隧道长9355m.隧道全部从黄土地层段穿过,加之洞口湿陷性黄土、崩塌、洞身段黄土陷穴、冲沟、下穿村庄乡村公路等.使这条全线第一双线黄土长隧以施工难度大、安全风险高而被列为
“West high-speed rail since the opening on July 1 unusually hot.Xi'an to Taiyuan passenger traffic increased from 800 to more than 2000. The attendance rate is more than 110%, and even a hard-to-see a phenomenon”. At the same time, it was an exciting news to see that employees of No. 2 Group II China Railway 11 Bureau Group who participated in the construction of the high-speed Xicheng Railway were even more proud of. The length of the 12th standard superscript 12.74 km of the Tai Xi High Speed Rail Station under construction by the Company 2 is 9355m long and the length of the tunnel is 9355m. The tunnels all pass through the loess stratum section together with cave collapsible loess, collapses and loess sections, Under the village village road, etc .. So that this first line of the first double loess long tunnel construction difficult, high security risks are listed as