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鑑委(62)214号指示通知:由于壹涵5070按現行桥规設計,填土高在12m以下时算出的管壁厚度,鋼筋数量均较前大参119,大121为小,而对去大参119大121通对运营开裂情况已有发現,因此
Notification of Commission (62) No.214: As Yihe 5070 is designed according to the current bridge gauge, the wall thickness and the amount of reinforcement calculated when filling height is less than 12m are smaller than those of 119 and 121 Large Senate 119 121 pass on the operation of cracking has been found, therefore