甘肅北山（蒙甘界）至仙米寺（甘青界）高速公路是連接蒙、甘、青三省區(qū)之間的一條南北大通道。中交二公局承建北仙高速公路2個路基標(biāo)段和1個路面標(biāo)段，包括78.52公里路基橋隧和103.77公里路面施工任務(wù)，攻克了風(fēng)積沙路基施工等技術(shù)難題。
　　Gansu Beishan (Mongolia-Gansu border) to XianmiTemple(Gansu-Qinghai border) Expressway in Gansuis the north-south pass that connects Mongolia ,GansuandQinghai. CCCC Second Highway Engineering Co., Ltd. undertook 2 subgrade sections and 1 pavement section, including 78.52km subgrade, bridges and tunnels and 103.77km pavement construction, which overcame technical difficulties in the construction of aeolian sand subgrade.