| 1. | Segmental bridges when properly designed will prove to be practically free of maintenance for many years .
分段桥梁经过适当设计可以多年不需要养护。 |
| 2. | Erection of segmental bridge deck by launching gantry no . 1
运用吊梁机兴建中的高架桥 |
| 3. | Erection of segmental bridge at viaduct c6 span 1
正在进行安装工作台已完成的高架桥 |
| 4. | Erection of segmental bridge deck by launching gantry no . 2
运用吊梁机兴建中的高架桥 |
| 5. | Erection of segmental bridge decks by launching gantry no . 1
运用吊梁机兴建中的高架桥 |
| 6. | Erection of segmental bridge decks by launching gantry no . 2
运用吊梁机兴建中的高架桥 |
| 7. | Erection of segmental bridge decks by ground support method cpr - 2
运用施工架兴建中的高架桥 |
| 8. | To join with the precast segmental bridges
原地施工桥与预制桥面接合 |
| 9. | General view to concrete segmental bridge
混凝土预制构件桥之概况 |
| 10. | Erection of segmental bridge decks by ground support method bridge a2
高架桥兴建中的情况位于?亨村路的桥台工程 |
