大口径长输管道弯管角度测量计算法

油气长输管道在经过丘陵、冲沟、河流等地形起伏段时,常常会遇到弯管角度的测量和计算问题,而且弯管角度测量及计算的准确与否,直接影响到下一道工序的施工质量。文章分析了弯管角度测量在长输管道施工中的重要性,着重介绍了弯管角度的测量计算方法———同坡法和异坡法,并通过实例说明了该方法的具体应用,强调了实际测量需注意的问题。

Measurement and Calculation Methods of Pipe Bending Angle for Large Diameter Long-distance Pipeline

Measurement and calculation of pipe bending angles are often needed as long-distance oil and gas pipelines crossing through hill,gully or river,and their accuracies affect the quality of following working procedure.This article analyzes the importance of measuring pipe bending angles in the construction of long-distance pipeline,with an emphasis on two measurement and calculation methods of pipe bending angles,i.e.the same slope method and the different slope method.The practical application of the methods is explained through one example,and some problems for attention in practical measurement are stressed.