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随着高速铁路路基新标准的应用,路基作为工程结构物的认识得到加强,对施工工艺及质量控制提出了更高要求。路基填筑质量的好坏,直接影响路基工程施工质量及工后运营安全。从国内已运营的高速及客运专线铁路出现的质量缺陷来看,路基是最可能出现质量问是及影响工后运营安全的结构物,施工中必须加以重视,处理好影响路基沉降稳定的基础处理、路基填筑、过渡段处理、防排水等路基关键项目。本文通过介绍贵广铁路DK628～DK654段路基填筑施工工艺,总结一些施工技术措施及质量管理控制经验。
With the application of the new standard for high-speed railway subgrade, the understanding of subgrade as an engineering structure has been strengthened, putting forward higher requirements on construction technology and quality control. Subgrade filling quality is good or bad, directly affect the subgrade construction quality and post-operational safety. In view of the quality flaws in the high-speed and passenger-dedicated railways that have been operated in China, the subgrade is the most likely to have quality problems and affects the safety of post-operation operations. Construction must pay attention to handling the basic treatment that affects the stability of roadbed settlements , Subgrade filling, transitional section treatment, drainage and other subgrade key projects. This paper introduces the construction technology of roadbed filling of DK628 ~ DK654 section of Gui - Guang Railroad, summarizes some construction technology measures and experience of quality management and control.