飞龙大桥深水基础的施工及40T浮吊的使用
|
摘要
本文对广西黎塘～钦州地方铁路的重点工程飞龙大桥深水基础的施工作了总结。其中，对深水基础的施工及浮吊的使用进行了探讨，根据水深确定桥墩基础的施工方法，对水深不超过四米的桥墩基础，采用填土筑岛的方法：对水深大于四米，河床有覆盖层，且能保证钢管桩具有足够的承载力的桥墩，采用钢管桩平台；对主河道上河床没有覆盖层，钢管桩无法插打的桥墩，采用浮式平台。在水上作业中，作者利用中-60浮箱等设备自行设计、拼制了40t浮吊，完成了水上运输、水上起重等作业，如钢管桩的运输、插打、水上施工平台的搭设、钻机吊车的水上转移、承台吊箱的起吊、钢管桩的拔除等作业。在全桥的施工过程中，40t浮吊起到了非常大的作用，解决了许多施工难题。在水中桥墩的施工过程中，每个关键步骤都需要浮吊作业，有了浮吊，无需缆索吊，就完成了施工，而且浮吊造价低、操作灵活、拼装简易、起重量大，在深水作业中，是一种值得推广和使用的好方法。
The thesis makes a summary to the construction of deep-water foundations of Feilong Bridge which is major project of Guangxi Litang-Qinzhou Local Railway. In which,it gives inquiring of the construction of deep- water foundations and the usage of floating crane. The construction program of bridge pier foundation will be fixed according to the water depth. If the water depth is less than 4m,pier foundation will adopt the method of building island by earth filling;if the water depth is more than 4m and there is over burden at river bed,at the same time,it has sufficient bearing capacity to load steel pipe pile,the steel pipe pile platform will be adopted. If there is no over burden at the river bed,the steel pipe pile cannot be inserted,the floating platform will be adopted,during overwater construction,the author (using zhong-60 floating box,etc.) assembled 40t floating crane by his own design,in this way,the floating crane completed the work of overwater transporting and lifting,such as the transporting of s
teel pipe pile,inserting,the erecting of overwater construction platform,overwater moving of drill grid crane,lifting of lifting box of cushion cap,pulling out of steel pipe pile. The 40t floating crane played a very important role in the construction of the whole bridge and solved many difficult problems. During the construction of the water pile,every key step needs floating crane. Compared with cable crane,the floating crane has the characteristics of low cost,large lifting capacity,easy assembling and operating. It is a good method and can be spread and used in the deep-water construction.
The thesis makes a summary to the construction of deep-water foundations of Feilong Bridge which is major project of Guangxi Litang-Qinzhou Local Railway. In which,it gives inquiring of the construction of deep- water foundations and the usage of floating crane. The construction program of bridge pier foundation will be fixed according to the water depth. If the water depth is less than 4m,pier foundation will adopt the method of building island by earth filling;if the water depth is more than 4m and there is over burden at river bed,at the same time,it has sufficient bearing capacity to load steel pipe pile,the steel pipe pile platform will be adopted. If there is no over burden at the river bed,the steel pipe pile cannot be inserted,the floating platform will be adopted,during overwater construction,the author (using zhong-60 floating box,etc.) assembled 40t floating crane by his own design,in this way,the floating crane completed the work of overwater transporting and lifting,such as the transporting of s
teel pipe pile,inserting,the erecting of overwater construction platform,overwater moving of drill grid crane,lifting of lifting box of cushion cap,pulling out of steel pipe pile. The 40t floating crane played a very important role in the construction of the whole bridge and solved many difficult problems. During the construction of the water pile,every key step needs floating crane. Compared with cable crane,the floating crane has the characteristics of low cost,large lifting capacity,easy assembling and operating. It is a good method and can be spread and used in the deep-water construction.
引文
[1] 范立础．桥梁工程(上册)．人民交通出版社，1990年
[2] 吕元林．大跨度公路桥梁深水基础施工方案比较．
[3] 郭梅．黄石长江大桥27号墩钢套箱设计与施工．
[4] 夏建中．芜湖长江大桥正桥基础施工技术．
[5] 李军堂．芜湖长江大桥双壁钢围堰施工．
[6] 左明福．公路桥梁深水桩基础施工．
[7] 连泽平．芜湖长江大桥深水施工平台设计施工．
[8] 高少堂．水上钻孔灌注平台建造与应用．
[9] 钟方红．船驳平台施工护筒安置实用技术．
[10] 吴德馨．浮桥施工技术．中国建材工业出版社，2000年
[11] 铁道部大桥局．武汉长江二桥．科学出版社，
[12] 陈敏杰．桥梁施工．中国铁道出版社，
[13] 交通部第一公路工程局．公路施工手册----桥涵．人民交通出版社，
[14] 杨文坚．重型设备吊装工艺与计算．中国建筑工业出版社，
[15] 西安公路学院．桥梁工程．人民交通出版社，
[16] 刘学波等．半潜驳在大型沉箱施工中的应用．
[17] 郎宗文．博罗大桥基础施工．
[18] 刘志辉．横沥大桥浮吊安装50预应力T梁方案设计施工．
[19] 孙玉山．近海河段桥梁深水基础的设计与施工．
[20] 汪德隆．海口世纪大桥主塔沉井施工介绍．
[21] 柳汉桥．汕头央石斜拉桥主墩钢套箱承台施工．
[22] 余锋．武汉白沙洲大桥3~#主墩大型钢吊箱施工．
[23] 刘俊．200t门式浮吊的设计与应用．
[24] 张有光．联网式施工平台在浑水天履盖层岩面桩基施工中的应用．
[25] 王序森．桥梁工程．
[2] 吕元林．大跨度公路桥梁深水基础施工方案比较．
[3] 郭梅．黄石长江大桥27号墩钢套箱设计与施工．
[4] 夏建中．芜湖长江大桥正桥基础施工技术．
[5] 李军堂．芜湖长江大桥双壁钢围堰施工．
[6] 左明福．公路桥梁深水桩基础施工．
[7] 连泽平．芜湖长江大桥深水施工平台设计施工．
[8] 高少堂．水上钻孔灌注平台建造与应用．
[9] 钟方红．船驳平台施工护筒安置实用技术．
[10] 吴德馨．浮桥施工技术．中国建材工业出版社，2000年
[11] 铁道部大桥局．武汉长江二桥．科学出版社，
[12] 陈敏杰．桥梁施工．中国铁道出版社，
[13] 交通部第一公路工程局．公路施工手册----桥涵．人民交通出版社，
[14] 杨文坚．重型设备吊装工艺与计算．中国建筑工业出版社，
[15] 西安公路学院．桥梁工程．人民交通出版社，
[16] 刘学波等．半潜驳在大型沉箱施工中的应用．
[17] 郎宗文．博罗大桥基础施工．
[18] 刘志辉．横沥大桥浮吊安装50预应力T梁方案设计施工．
[19] 孙玉山．近海河段桥梁深水基础的设计与施工．
[20] 汪德隆．海口世纪大桥主塔沉井施工介绍．
[21] 柳汉桥．汕头央石斜拉桥主墩钢套箱承台施工．
[22] 余锋．武汉白沙洲大桥3~#主墩大型钢吊箱施工．
[23] 刘俊．200t门式浮吊的设计与应用．
[24] 张有光．联网式施工平台在浑水天履盖层岩面桩基施工中的应用．
[25] 王序森．桥梁工程．