蒙内铁路路基基床A料填筑施工技术

摘要

由于蒙内铁路路基施工环境的特殊性,为探索和总结一套适用于蒙内铁路二标的路基基床A料填筑施工技术,蒙内二标项目部在标段内选择具有代表性的地段现场开展摊铺压实工艺试验,重点解决焖料、卸料方式、碾压夯实方式三项关键工艺,并制定了配套的质量保证措施.施工技术被用于全标段施工后,有力地保证了施工进度和质量,二标段路基基床表层各项指标均满足验收及质量评定标准.同时,本标段的施工技术可为类似工程的施工提供可借鉴的参考.%Because of the particularity construction environment for subgrade of Mombasa-Nairobi Standard Gauge Railway,to explore and sum up a set of construction techniques of A-type filling materials of subgrade in Section 2,we selected a representative site for paving compaction process test to solve 3 key processes such as braised material,unloading mode and rolling method,and formulated the corresponding quality assurance measures.The technology has been used in the whole subgrade construction,the construction schedule and quality are guaranteed effectively,and all the indexes of subgrade surface of Section 2 meet the acceptance and quality evaluation standards.This paper provides a reference for the similar railway engineering construction.