在裸岩河床区的水上移动网架平台施工技术

Application for Movable Lattice Grid Platform Construction Technic in the Bare Rock Stream Bed Area

在水上桥梁工程桩基施工中,当江河水位水速状态极不稳定,不能使用常规的钢管桩平台或浮式工作平台来进行水上作业时,如何解决水上施工平台问题显得十分重要。通过南平市跨江大桥的施工经验,介绍了一种在水文地质条件较为复杂的地区如何利用钢管支架安装施工平台,并顺利完成桩基施工的方法,这是一种可以反复使用的移动网架,既可以很大程度上降低施工成本,又能保证施工安全与施工质量,是一种值得推广的先进施工工艺。

It is very important to how to deal with construction platform on the water, when the water level state is terribly unstable and routine steel tube pile platform or floating platform can not be used during the construction of bridge on the water. Author introduces a method how to make use of steel tube bearer to set construction platform and finish pile foundation construction successfully in the complicated hydrogeologieal condition area via construction experience of Nanping large fiver bfidge. This is a movable lattice grid used time and again, which can both reduce cost to great extent and guarantee safety and quality of construction, this is an advanced construction technics that is worthy of spreading .