关键词: 管道基础托换, 横跨基坑, 型钢梁体系

Abstract: This paper discusses the protect methods of the safe crossing of a military oil pipeline under crossing a deep excavation of a comprehensive utility culvert in Wuhan. A pile foundation plus the hot rolled steel beam system is used as the vertical support member of the culvert, which optimizes the component size combined with the supporting structure. The coordination between the supporting process and the excavation progress to ensure the safe operation of the oil pipeline during the utility culvert construction is also performed. This method can provide a reference for the safe construction of other important pipelines across the deep excavation. This paper introduces the technical details in each stage, such as the support structure design, the reinforcement process, and the culvert backfill. It is concluded that the use of the hot rolled steel supporting beam replacement system and cast-in-place soldier pile can effectively enhance the capability of the culvert foundation to resist the deformation during the deep excavation.

Key words: Culvert Foundation Replacement, Across the Deep Excavation, Hot Rolled Steel Support Beam System