桥梁基础施工中深埋废弃管道成套处理技术

Packaged Treatment Technology for Deeply Buried Abandoned Pipelines in Bridge Foundation Construction

摘要:

依托工程实践，采用全套管全回转清障技术，对新建城市高架快速路地下废弃管道进行综合处置，以清除管道内废弃气体等有害物质；然后采用分段分层管道泥浆充填技术，对废弃管道进行有效回填加固。工后检测结果表明，废弃管道处置效果优异，能够满足现状道路和新建高架桥梁桩基施工要求，为后续类似项目提供了参考借鉴。

Abstract:

Relying on the engineering practice, the full-casing full-rotation clearing technology is used to comprehensively dispose the underground abandoned pipelines of newly built urban elevated expressways in order to remove the harmful substances such as waste gases inside the pipelines. Then, the segmented layered pipeline mud filling technology is used to effectively backfill and reinforce the abandoned pipeline. The post-construction detection results show that the disposing effect of abandoned pipelines is excellent, which can meet the construction requirements of existing roads and new elevated bridge pile foundations, and provide reference for similar projects in the future.