large span arch bridge 大跨径拱桥
large-span arch bridge 大跨度拱桥
large-span arch truss structure 大跨度门式桁架结构
large span box arch 大跨度箱形拱桥
large span steel arch bridge 大跨度钢拱桥
Large span multi-arch tunnel 大跨径连拱隧道
large-span steel arch bridge 大跨钢箱拱桥
large-span double-arch tunnel 大跨度双连拱隧道
Wulongling tunnel on the Jingzhu Expressway is a dual-arch highway tunnel with a large span, shallow depth, poor geology and uneven ground pressure.
五龙岭隧道由于其特殊的地形地质情况，使该隧道具有大跨、浅埋、软弱不良地质和偏压等四大难点。
The company provides production and construction of light steel structure, large-span arch Cai Gang, the door-frame roof of the building envelope and the production and installation.
本公司主要提供轻钢结构制作与施工，大跨度彩钢拱型、门式框架建筑的屋面及围护结构的制作和安装。
As a large span steel arch bridge and located in the west plateau, it is necessary to calculate its dynamical action because it belongs to higher anti -seismic lever.
对于柳梧大桥这样的大跨度钢拱桥，由于其处于西部高原地区，属于抗震等级要求较高的桥梁，有必要进行动力计算。
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