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分析直埋水平直角管段臂长的限定条件,推导直埋水平直角管段最大允许平均计算臂长的计算式,对最大允许平均计算臂长影响因素进行算例分析。直埋水平直角管段短臂长度应大于或等于弯头弹性臂长,弯头两侧臂长之和最大值应小于或等于2倍的最大允许平均计算臂长。在设定条件下,影响直埋水平直角管段最大允许平均计算臂长的关键因素为弯头的曲率半径。
Analyzed the limited condition of the arm length of the straight buried horizontal straight pipe section and deduced the calculation formula of the maximum allowable average arm length for the straight buried horizontal right pipe section and analyzed the influence factors of the maximum allowable average arm length calculation. The length of the short arm at the straight horizontal pipe section shall be greater than or equal to the maximum allowable average arm length of the elbow flexible arm length and the maximum sum of arm lengths on both sides of the elbow shall be less than or equal to 2 times. Under the conditions of setting, the key factor that affects the maximum allowable average of the arm length at the straight buried pipe is the radius of curvature of the elbow.