| 程 金.混凝土筒仓滑模施工关键技术研究与工程实践[J].水泥工程,2026,39(1):65-69 |
| 混凝土筒仓滑模施工关键技术研究与工程实践 |
| Key technology research and engineering practice of slipform construction for concrete silos |
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| DOI： |
| 中文关键词: 滑模施工 混凝土筒仓 施工控制 流水作业 精度控制 |
| 英文关键词: slipform construction concrete silo construction technology flow process accuracy control |
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| 摘要点击次数: 250 |
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| 中文摘要: |
| 本研究以伊拉克DCC二线6 000 t/d熟料水泥生产线项目中的万吨水泥储存筒仓为例，针对直径20 m、高440m、抗震设防烈度7度且内置无粘结预应力体系的复杂结构，开展滑模施工关键技术体系研究。通过理论分析与方案比选，确立了以大型预制钢模板为核心、1.5 h固定节拍的连续作业方案。重点探讨了混凝土工作性能精准控制策略、多工种协同作业流程优化模型及基于实时监测的动态纠偏方法。实践表明，采用初凝时间4.5 h的混凝土配合比，可稳定出模强度在0.3 MPa；执行标准化流水循环模型，实现日均4.5 m的滑升效率；利用“内控法”测量与平台调平技术，将44 m筒仓垂直度偏差控制在25 mm以内。该成果为伊拉克DCC二线项目提供技术支撑，形成海外复杂环境下大型预应力筒仓滑模施工的可复制解决方案。 |
| 英文摘要: |
| This study takes the 10 000 t cement storage silo in the 6 000 t/d clinker production line project of DCC Phase II in Iraq as the research object. Focusing on its complex structure characterized by a 20 m diameter, 44 m height, seismic fortification intensity of 7 degrees, and an internal unbonded prestressing system, the research investigates the key technology system for slipform construction. Through theoretical analysis and scheme comparison, a continuous operation scheme with large prefabricated steel formwork as the core and a fixed 1.5 h cycle was established. The study specifically focuses on the precise control strategy for concrete workability, the optimization model for multi-trade coordination, and the dynamic correction method based on real-time monitoring. Practice has shown that using a concrete mix proportion with an initial setting time of 4.5 h can stabilize the demoulding strength at 0.3 MPa; implementing a standardized operational cycle model achieves a daily slip rate of 4.5 m; and utilizing the “internal control method” for surveying and platform leveling technology confines the verticality deviation of the 44 m silo within 25 mm. These outcomes provide technical support for the DCC Phase II project in Iraq, forming a replicable solution for slipform construction of large prestressed silos in complex overseas environments. |
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