狭小场地内渡槽及空心板吊装技术研究

Study on Hoisting Technology of Aqueduct and Hollow Slab in Narrow Site

阐述了亚曼苏水电站尾水渠1#农用桥空心板及渡槽吊装施工技术。鉴于吊装平台场地狭小、渡槽单跨重82.38 t,单跨长20 m的具体情况,最终选择采用2台QY70汽车起重机和1台QUY160履带式起重机进行吊装;桥梁空心板单块最大重量为38.9 t,选择采用1台QY70汽车起重机和1台QUY160履带式起重机进行吊装。施工过程中质量、安全得到了保证,为今后类似工程提供了参考经验。

This paper expounds the hoisting construction technology of hollow slab and aqueduct of 1#agricultural bridge in tailrace channel of Yamansu Hydropower Station.As the hoisting platform site is narrow,the single span weight of aqueduct is 82.38t,and the single span length is 20 m,2 sets of QY70 truck cranes and 1 set of QUY160 crawler crane are finally selected for hoisting;as the maximum weight of single hollow slab of bridge is 38.9t,and 1 set of QY70 truck crane and 1 set of QUY160 crawler crane are selected.In the process of construction,quality and safety are guaranteed,which provides reference experience for similar projects in the future.