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Simplified Method for Estimating Pull Force on Polyethylene Pipe for Mini-HDD Applications

机译:用于探测Mini-HDD应用的聚乙烯管拉力的简化方法

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A simplified method has been developed to estimate the pull loads on polyethylene pipe installed by a mini (or midi) - HDD process. The method and associated formulae are based upon approximations to the equations and procedures provided in ASTM F 1962, Standard Guide for Use of Maxi-Horizontal Directional Drilling for Placement of Polyethylene Pipe or Conduit Under Obstacles, Including River Crossings. The objective is to provide a convenient means of identifying potentially problematic mini-HDD installations and/or to aid in the pipe selection process, in contrast to the extensive planning or analytical investigations characteristic of typical maxi-HDD projects. The proposed mathematical model reflects the major route parameters (bore length, planned bends) and buoyant weight for an empty PE pipe, and also accounts for unplanned curvatures resulting from path corrections in a typical mini-HDD installation.
机译:已经开发了一种简化的方法来估算由迷你(或MIDI) - HDD工艺安装的聚乙烯管上的拉载荷。该方法和相关公式基于ASTM F 1962中提供的方程和程序的近似,用于在包括河流的障碍物下放置聚乙烯管或导管的最大水平方向钻孔的标准指南。目的是提供一种方便的方法,即识别潜在的有问题的迷你高清装置和/或帮助管道选择过程,与典型的Maxi-HDD项目的特征的广泛规划或分析研究相比。所提出的数学模型反映了空PE管道的主要路线参数(钻孔长度,计划弯曲)和浮力重量,并且还考虑由典型的迷你安装中的路径校正引起的无计划曲率。

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