摘要
为了有效解决西安咸阳国际机场与城市之间的交通拥堵,缓解机场枢纽交通压力,西安机场城际铁路引入咸阳国际机场线路方案根据机场总体规划、既有设施条件,结合线路技术标准,研究了与机场主航站楼无缝衔接的机场站位;采用合理的曲线半径绕避机场环境敏感区,确定了合理的线路走向方案;纵断面满足机场飞行区沉降要求的同时设计为节能坡度;横断面设计两线净距大于1倍隧道洞径,减小左右线盾构施工相互影响;通过课题研究,采用安全、可靠、可行的桩基托换技术下穿T2/T3航站楼连接引桥,确保不中断机场正常运营的前提下完成项目建设。
In order to effectively solve the traffic congestion between Xi'an Xianyang International Airport and the city and relieve the traffic pressure of the airport hub,the airport position which is seamlessly connected with the main airport terminal in the master plan of the airport is studied on the basis of the existing facilities and the technical standards of the line,and reasonable route scheme of Xi'an Airport Intercity railway leading into Xianyang International Airport is determined by means of reasonable curve radius to avoid the airport sensitive area.The vertical section meets the settlement requirements of the airport flight-run area and is designed with energy-saving slope.In the cross section design,the clear distance between the two lines is greater than 1 time of the tunnel diameter,so as to reduce the interaction between the shield construction of the left and right lines.The researches of the project conclude the employment of that safe,reliable and feasible pile foundation underpinning technology to connect approach bridge through T2/T3 terminal,so as to complete the project construction without interrupting the normal operation of the airport.
作者
苏碧成
SU Bicheng(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi'an 710043,China)
出处
《铁道标准设计》
北大核心
2020年第11期1-6,共6页
Railway Standard Design
基金
中铁第一勘察设计院集团有限公司科技研究计划开发项目(院科13-14)。
关键词
城际铁路
线路方案
节能坡度
横断面间距
桩基托换
intercity railway
route scheme
energy-saving slope
cross section spacing
pile foundation underpinning
