求翻译：缺点：由于它是一种推力结构，对地基要求较高；对多孔连续拱桥，为防止一孔破坏而影响全桥，要采取特殊措施或设置单向推力墩以承受不平衡的推力，增加了工程造价；在平原区修拱桥，由于建筑高度较大，使两头的接线工程和桥面纵坡量增大，对行车极为不利。是什么意思？

Disadvantages: Since it is a thrust structure, the foundation higher; porous continuous arch bridge, in order to prevent a hole in the destruction of the whole bridge, to take special measures or one-way thrust pier to withstand the thrust of the imbalance, increased project cost; repair arch bridge