And combined with the engineering practice of Xiao-Xiang Highway route alteration project, it introduces the technological process of on-line blockage with high pressure expansive cylinder and the key working procedure of practical operation.
And combined with the engineering practice of Xiao-Xiang Highway route alteration project, it introduces the technological process of on-line blockage with high pressure expansive cylinder and the key working procedure of practical operation.
对比囊式封堵和盘式封堵，从安全性、经济性、可操作性、稳定性和时效性方面论述了膨胀筒式不停输封堵的特点及其在油气管道施工中的优越性。