地铁深基坑下穿高铁施工技术

Construction Technology for Subway Deep Foundation Pit Under High-speed Rail

以西安地铁三号线下穿郑西高铁施工为例,详细介绍深基坑下穿既有高速铁路施工技术措施和施工组织安排,重点对高铁防护方案和施工过程中的监控量测予以总结。由于前期防护措施到位,施工过程组织得力,不仅顺利完成地铁结构施工,又保证了既有高铁线路的运行安全,可为类似工程提供经验。

This paper, taking Xi＇ an metro line three in Zheng Xi High-speed Rail construction as an example, introduces the deep foundation pit under existing high-speed railway construction technology and construction organization with focus on the summarization of the key measuring and monitoring of high-speed rail protection scheme and construction process. The well-prepared protective measures in construction process and effective organization not only ensure the successful completion of the subway construction, but also the safe operation of the existing high-speed rail line, which can provide experience for similar engineering.