摘要
交叉渡线无砟道岔在国内地铁项目应用较多，大多采用“支墩法”进行施工，一次浇筑施工的案例相对较少，采用减振型交叉渡线道岔仅杭州地铁采用过，在高速铁路无砟轨道隧道内有无砟道岔施工的案例，但减振道岔没有这方面的成熟经验。香港地铁交叉渡线道岔大多分成五个部分分别组织施工，即四组单开道岔和中间的菱形部分，施工进度缓慢，文章结合香港高铁830项目铺设的1组1/4.5无砟交叉渡线和1组1/3.4无砟IST道床结构交叉渡线道岔施工实践，结合香港高铁特殊施工环境，开发配套工装，研究开发了交叉渡线减振道岔一次精调、一次浇筑施工技术，提高了工程质量，缩短了建设工期，总结的高速铁路交叉渡线减振道岔施工工艺、作业方法、技术要求，可供类似工程参考。
Abstract
Scissors crossing ballastless turnout in the domesticsubway project applications are more, most of the use of “support pier”for construction, a pouring construction of the case is relatively small,the use of Vibration pad Scissors Crossing only Hangzhou subway.Used in high-speed railway Ballastless track tunnel with ballastlessturnout construction case, but the vibration switch does not have thismature experience. Hong Kong subway Scissors Crossing is dividedinto five parts were organized construction, namely four groups ofsingle turnout and the middle of the diamond part of the constructionprogress is slow, the text combined with the Hong Kong high-speedrail 830 project laying a group of 1 / 4.5 ballastless scissors crossing and1 group of 1 / 3.4 ballastless IST trail structure scissors crossing theturnout construction practice, Combined with Hong Kong high-speedrail special construction environment, the development of supportingtooling,research and development of the crossing line damping turnouta fine tune, a pouring construction technology to improve the qualityof the project, shorten the construction period, summed up the high-speed railway cross Construction technology, working method, technicalrequirements for similar dredging.
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