一种大直径拉管回拖阻力预测与减阻施工方法
By using a multi-mechanical coupling model and drag reduction construction scheme, the pullback resistance of large-diameter pipe pulling is accurately predicted. By adopting hole-forming fluid optimization, pipe surface modification and dynamic control, a systematic drag reduction system is formed, which solves the problems of difficulty in resistance prediction and unstable drag reduction effect in the construction of large-diameter pipe pulling, and realizes efficient and safe construction.
CN122413733APending Publication Date: 2026-07-17BEIJING MUNICIPAL SEVENTH CONSTR ENG CO LTD +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING MUNICIPAL SEVENTH CONSTR ENG CO LTD
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-17
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Figure CN122413733A_ABST
Abstract
本发明提供了一种大直径拉管回拖阻力预测与减阻施工方法，包括：采集拉管施工区域的地层参数、大直径管道参数及施工工艺参数；采用多力学耦合模型计算不同施工条件下回拖全过程的阻力值；根据不同施工条件下回拖全过程的阻力值，结合施工区域地层特性、管道材质及施工环境确定减阻施工方案；在回拖全过程中实时监测回拖阻力变化，并根据监测数据动态调整施工参数；施工完成后，按照预设验收标准进行全面检测验收。本发明通过多力学耦合模型精准预测回拖阻力、结合多因素制定减阻方案、实时动态调整施工参数并完成全面验收，能有效提升大直径拉管施工的安全性、经济性与施工质量，降低回拖风险。
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