摘要
巴布亚新几内亚瑞木镍钴红土矿矿浆管道工程,建成后试通浆在K44+300～K45+400处产生了加速流,造成K43～K45+800近3 km的管段在垂直方向、水平方向发生位移,横向最大位移达1.5 m,管道附属设施锚固墩破裂,支墩倾斜;随管道敷设的光缆被拉断等破坏现象。为消除加速流,建议在此处采用S型缓弯回路来消除加速流,同时修改管道敷设工艺。管道经重新敷设后,再次试通浆没有产生加速流,且运行平稳,收到了良好效果。
The slurry pipeline in PNG Ramu Nico red soil ore project generated accelerated flow in the section of K44 ＋ 300 to K45 ＋ 400 on the test running stage when it completed, and it caused a displacement on vertical and horizontal direction of the pipeline on the section of K43 ~ K45 ＋ 800（about 3 kin）. The maximum displacement is up to 1.5 m,anchors of pipeline cracked, pine supports inclined, optical cable along the pipeline be snapped. In order to eliminate accelerated flow, an S-shaped transitional bend circuit laying method was suggested, and the pipe laying technology was modified at the same time. After modification, the pipeline did not generate accelerated flow on the next test running. It works well, and has a sound effect.
出处
《金属矿山》
CAS
北大核心
2012年第6期106-108,112,共4页
Metal Mine
关键词
矿浆管道
加速流
传统消除方法
S型缓弯回路
Slurry pipeline, Accelerated flow ,Traditional eliminating method, S-shaped transitional bend circuit
