大型基础工程如地下隧道、高架桥、跨江桥、江河堤和水利枢纽等构筑物，它们的使用期长达几十年甚至上百年，对它们进行健康监测的概念很早就提出了。
Many large scale projects such as tunnels, viaducts, river bridges, riverbanks and irrigation works hinge et al. , there use time are as long as several decades or even centuries.
随着大跨距跨江铁路桥的建设，车和桥的耦合振动会引起接触网的振动，进而影响弓网的耦合振动。
Along with the construction of large-span, river-crossing Bridges, vehicle-bridge coupling vibration will make catenary vibrate, which can further affect pantograph-catenary coupling vibration.
柳州三门江大桥主桥为双塔、双索面、三跨部分斜拉预应力混凝土箱梁桥。
The main bridge of Sanmenjiang Bridge in Liuzhou is a 3-span partial cable-stayed prestressed concrete box beam bridge with two pylons and double cable planes.
柳州三门江大桥主桥为双塔、双索面、三跨部分斜拉预应力混凝土箱梁桥。
The main bridge of Sanmenjiang Bridge in Liuzhou is a 3-span partial cable-stayed prestressed concrete box beam bridge with two pylons and double cable planes.
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