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A platform for research: civil engineering, architecture and urbanism
Supporting construction method for excavation and backfilling of railway roadbed body
The invention discloses a supporting construction method for excavation and backfilling of a railway roadbed body. The supporting construction method is implemented by three stages: a preparation stage, a key stage and a recovery stage. The preparation stage comprises the steps of road and bridge joint part expansion joint cleaning, waterproof and drainage construction, cutting separation, chiseling of an inter-line or line shoulder sealing layer open joint area, chiseling of an inter-line or line shoulder sealing layer excavation area, roadbed slab embedded steel bar anchoring of a non-excavation area, existing embedded steel bar chambering and taking out of the excavation area, removal of a supporting layer on the outer side of a wide roadbed slab and the like. The key stage comprises the steps of excavating an operation groove, excavating and supporting a roadbed body step by step according to units, chiseling off a supporting layer, planting steel bars in the supporting layer, reinforcing steel bars in the supporting layer, backfilling the roadbed body and the supporting layer, carrying out interface treatment, maintaining, planting steel bars in a roadbed slab of an excavationarea and the like. The recovery stage comprises the steps of open joint glue injection of a supporting layer and a roadbed, steel bar planting of an inter-line sealing layer, pouring of a road shoulder sealing layer, pouring of the inter-line sealing layer, caulking treatment, line recovery and the like. The method is safe in operation, high in quality, punctual and efficient.
本发明公开一种铁路路基本体开挖回填的支撑施工方法，包括准备阶段、关键阶段和恢复阶段；所述准备阶段包括路桥结合部伸缩缝清理、防排水施工、切割分离、凿除线间或线肩封闭层离缝区、凿除线间或线肩封闭层开挖区、非开挖区的道床板植筋锚固、开挖区的既有植筋扩孔取出、宽出道床板外侧支承层清除等步骤；所述关键阶段包括开挖作业槽、分步按单元对路基本体开挖及支撑、支承层凿除、支承层植筋、支承层钢筋、路基本体和支承层回填、界面处理、养护、开挖区的道床板植筋等步骤；所述恢复阶段包括支承层与路基离缝注胶、线间封闭层植筋、浇筑路肩封闭层、浇筑线间封闭层、嵌缝处理、恢复线路等步骤；本方法作业安全、优质、正点、高效。
Supporting construction method for excavation and backfilling of railway roadbed body
The invention discloses a supporting construction method for excavation and backfilling of a railway roadbed body. The supporting construction method is implemented by three stages: a preparation stage, a key stage and a recovery stage. The preparation stage comprises the steps of road and bridge joint part expansion joint cleaning, waterproof and drainage construction, cutting separation, chiseling of an inter-line or line shoulder sealing layer open joint area, chiseling of an inter-line or line shoulder sealing layer excavation area, roadbed slab embedded steel bar anchoring of a non-excavation area, existing embedded steel bar chambering and taking out of the excavation area, removal of a supporting layer on the outer side of a wide roadbed slab and the like. The key stage comprises the steps of excavating an operation groove, excavating and supporting a roadbed body step by step according to units, chiseling off a supporting layer, planting steel bars in the supporting layer, reinforcing steel bars in the supporting layer, backfilling the roadbed body and the supporting layer, carrying out interface treatment, maintaining, planting steel bars in a roadbed slab of an excavationarea and the like. The recovery stage comprises the steps of open joint glue injection of a supporting layer and a roadbed, steel bar planting of an inter-line sealing layer, pouring of a road shoulder sealing layer, pouring of the inter-line sealing layer, caulking treatment, line recovery and the like. The method is safe in operation, high in quality, punctual and efficient.
本发明公开一种铁路路基本体开挖回填的支撑施工方法，包括准备阶段、关键阶段和恢复阶段；所述准备阶段包括路桥结合部伸缩缝清理、防排水施工、切割分离、凿除线间或线肩封闭层离缝区、凿除线间或线肩封闭层开挖区、非开挖区的道床板植筋锚固、开挖区的既有植筋扩孔取出、宽出道床板外侧支承层清除等步骤；所述关键阶段包括开挖作业槽、分步按单元对路基本体开挖及支撑、支承层凿除、支承层植筋、支承层钢筋、路基本体和支承层回填、界面处理、养护、开挖区的道床板植筋等步骤；所述恢复阶段包括支承层与路基离缝注胶、线间封闭层植筋、浇筑路肩封闭层、浇筑线间封闭层、嵌缝处理、恢复线路等步骤；本方法作业安全、优质、正点、高效。
Supporting construction method for excavation and backfilling of railway roadbed body
一种铁路路基本体开挖回填的支撑施工方法
DAI YONGBO (author) / LIU TAO (author) / SONG BEN (author) / HE JUN (author) / XU GUOHUA (author)
2020-07-10
Patent
Electronic Resource
Chinese