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首页> 外文会议>International conference on pipelines and trenchless technology >Pull-back Force Calculations for a Long Distance Product Pipeline Crossing the Yellow River by Horizontal Directional Drilling
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Pull-back Force Calculations for a Long Distance Product Pipeline Crossing the Yellow River by Horizontal Directional Drilling

机译：水平定向钻井穿越黄河的长输管道的回拉力计算

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摘要

Pull-back force data is very important in designing pipeline crossing project by horizontal directional drilling, which is also the basis of choosing drilling machine. Through evaluating the maximum pull-back force, the damage of pipeline can be avoided. There have various factors influencing the pull-back force, such as engineering geological factors and operating conditions. There has no suitable universal mechanics model so far. In this paper the research object is a long distance product pipeline horizontal directional drilling crossing under the bottom of the Yellow River. Based on the research achievements and mechanics theory, the pull-back force has been respectively calculated by four kinds of methods , which are standard formula calculation, unloading arc earth pressure calculation, net buoyancy calculation and winch calculation. Then, the maximum pull-back force is determined by analyzing the applicable conditions and results of these four calculation methods. Finally, a securer, more effective and economical construction and pull-back force calculation method has been obtained, which can also provide valuable references for such kind of projects.
机译：拉力数据在水平定向钻进设计管道穿越工程中非常重要，也是选择钻机的基础。通过评估最大拉回力，可以避免管道损坏。有多种因素会影响拉回力，例如工程地质因素和工作条件。到目前为止，还没有合适的通用力学模型。本文的研究对象是黄河底部的一条长距离输油管道水平定向钻探交叉口。根据研究成果和力学理论，分别采用标准公式计算，卸荷弧土压力计算，网浮力计算和绞车计算四种方法分别计算了拉力。然后，通过分析这四种计算方法的适用条件和结果来确定最大拉回力。最后，获得了一种更安全，更有效，更经济的结构和拉力计算方法，该方法也可为此类项目提供有价值的参考。

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