黄浦江大桥主墩、辅助墩都位于江中，而且大型打桩船无法进入施工区域，其施工难度大。
The main piers, support piers are in the river, and unable to enter the large-scale construction of boats piling region. Its construction is difficult.
该设备也可作为打桩船、地质勘探船、爆破挤淤装药船、钻孔船等使用，适用于多种水下基础施工工程。
The equipment is suitable for various underwater projects and can also be used as pile-driving ship, geology survey ship, charge ship for mud extrusion by explosion, drilling ship, and etc.
本文介绍了杭州湾跨海大桥控制测量技术，讨论了在近海区利用全站仪对常规打桩船打桩的测量技术和在离海岸较远时利用GPS打桩系统打桩的方法。
In the paper, the surveying technique of the bridge is introduced, the application of total station instrument in piling of Hangzhou Bay Major bridge is discussed.
本文介绍了杭州湾跨海大桥控制测量技术，讨论了在近海区利用全站仪对常规打桩船打桩的测量技术和在离海岸较远时利用GPS打桩系统打桩的方法。
In the paper, the surveying technique of the bridge is introduced, the application of total station instrument in piling of Hangzhou Bay Major bridge is discussed.
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