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临近既有线深基坑开挖已直接影响铁路运行的安全,文章从地质情况入手,详细阐述40b型槽钢桩支护技术的运用,并介绍其施工技术及质量控制要点,对既有路基沉降进行观测,确保基坑边坡的安全。
The excavation of the deep foundation pit near the existing railway line has a direct impact on the safety of the railway operation. Starting with the geological conditions, the article elaborates the application of the 40b type steel channel pile supporting technology and introduces its construction technology and quality control essentials. Observation, to ensure the safety of foundation pit slope.