城市轨道交通高架线的设计研究

研究目的:针对深圳地铁3号线高架线路比重大的特点,提出高架线路应重点研究的几个课题,以解决高架线路设计关键技术问题。研究方法:结合城市规划、高架线周边环境、结构体系等进行综合技术对比分析。研究结果:通过深圳地铁3号线高架线路设计中对高架桥梁、车站站台型式、减震降噪等课题的研究,探索城市轨道交通高架线路设计的经验和相关技术措施。研究结论:城市轨道交通高架桥梁的选型除满足结构受力要求外,还应结合城市规划、城市景观统一考虑,通常应选择箱形梁。高架车站站台的型式从运营、体量等方面考虑,一般宜选择岛式站台。高架线路的减震降噪要从结构、轨道、声屏障等方面采用综合措施。

Research on Elevated Line Design of Urban Rail Transit

Research purposes: Based on the characteristic of large proportion of the elevated line in Shenzhen metro line 3,this paper puts forward several topics to be researched emphatically on the elevated line to solve the key technological issues for elevated line design.Research methods: The paper contrasts analysis of integrated technology which will be carried out in combination with the city planning,circumjacent environment and structural system,etc.Research results: Through the study for topics on the elevated bridge,station platform type,decreasing vibration and noise reduction,etc.,this paper researches the design experiences and relative technical measures for elevated line of urban rail transit.Research conclusions: For the type selection of elevated bridge of urban rail transit,in addition to meet the strained requirement of structure,it is also considered unitedly in combination with city planning and cityscape.Generally,the box girder is selected.For the type of elevated station platform,considering operation and mass,etc.,the island platform is selected generally.For the decreasing vibration and noise reduction of elevated line the integrated measures are adopted on these aspects,such as structure,track and acoustic barrier,and so on.