大岗山水电站临时承载索过江工艺改进

发布时间：2019-05-22 05:46

【摘要】：在大岗山水电站临时承载索过江过程中,由于往复绳相互缠绕,导向轮受力过大产生破裂,导致施放效率低下;同时临时承载索过江垂度较大,影响到下方建筑物安全。为此,对临时承载索过江结构和工艺进行改进,用提升牵引绳将临时承载索锁定于缆机小车的起升滑轮上,通过缆机小车和往复绳的配合,牵引临时承载索过江。实践表明,该技术减小了卷扬机、往复绳的受力以及临时承载索过江垂度,缩短了临时承载索施放时间,对提高水电工程缆机拆除作业的施工效能、降低安全风险具有参考价值。
[Abstract]:In the process of crossing the river with the temporary bearing cable of Dagangshan Hydropower Station, due to the winding of the reciprocating rope, the force of the guiding wheel is too large and the force of the guide wheel is too large, resulting in low application efficiency. At the same time, the temporary bearing cable has a large sag across the river, which affects the safety of the buildings below. For this reason, the structure and technology of temporary bearing cable crossing are improved, and the temporary bearing cable is locked on the lifting pulley of cable machine trolley by lifting traction rope, and the temporary bearing cable is pulled across the river through the cooperation of cable machine car and reciprocating rope. The practice shows that this technology reduces the force of hoist, reciprocating rope and the sag of temporary bearing cable, shortens the application time of temporary bearing cable, and improves the construction efficiency of cable machine demolition operation in hydropower project. Reducing security risk has reference value.
【作者单位】：长江勘测规划设计研究有限责任公司;
【分类号】：TV53

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