通苏嘉甬铁路苏州工业园区方案研究

Scheme Study of Nantong-Suzhou-Jiaxing-Ningbo Railway Passing Suzhou Industrial Park Area

新建南通—苏州—嘉兴—宁波铁路是国家高速铁路网的重要组成部分,也是长三角地区城际铁路网骨干线路。铁路需穿越苏州工业园区,园区内住宅小区密集,同时分布有大批对振动较敏感的高科技电子、精密仪器企业,应尽量减少对住宅小区和沿线企业的影响。通过对线路走向和敷设方式多方案比选,并对振动评估进行专题论证,最终采用征拆较小、易于实施、有效的集约土地资源,有利于改善园区城市环境的凤里街地下方案。研究表明,高速铁路在通过城区段时,线路走向及敷设方式需结合拆迁、工程投资、噪声振动、环境影响等因素综合确定,虽然地下方案直接工程投资较高,但考虑到征地拆迁影响因素后,总投资与高架方案相差不大,且地下方案对外部环境影响较少,更有利于项目顺利推进。

The newly-built Nantong-Suzhou-Jiaxing-Ningbo Railway is an important part of the national high-speed railway network and a key line of the intercity railway network in the Yangtze River Delta.The railway needs to pass through the Suzhou Industrial Park which is densely populated by residential communities.There are lots of high-tech electronic and precision instrument companies that are sensitive to rail-wheel vibration.Thus,it is necessary to minimize the vibration effects on residential communities and enterprises along the line.Through the comparison of multiple schemes of route direction and laying methods,and special demonstration of vibration assessment,the underground plan along the Fengli Street,which has advantages including low requirement for requisition and demolition,easy-to-implement,effective intensive land resources,conducive to improving the urban environment of the park,was finally adopted.Studies shows that when high-speed railways pass through urban sections,the route and laying methods need to be comprehensively determined in consideration of factors such as demolition,project investment,noise and vibration,and environmental impact.Although the direct engineering investment of the underground scheme is relatively high,taking account of the factors such as land acquisition and demolition,the total investment is similar with the viaduct scheme and it has less impact on the external environment.