Ultra-high water cast-in-place support construction method

The invention relates to the technical field of cast-in-place support construction methods, in particular to an ultra-high water cast-in-place support construction method. The method specifically comprises the steps of 1, support scheme design; 2, riverbed line elevation survey; 3, pre-burying of steel plates on main bridge side piers; 4, positioning and nail inserting of a first steel pipe pile;5, lengthening of a second pipe pile and a third pipe pile; 6, distribution girder construction; 7, support acceptance check; 8, support pre-pressing; 9, cast-in-place solid construction. The processprogram is clear and easy to understand, constructors can easily master the method, the construction process is easy to control, and the construction quality is easy to guarantee. 本发明涉及现浇支架施工方法技术领域，特别涉及种超高水中现浇支架施工方法，具体包括：(1)支架方案设计；(2)河床线标高调查；(3)主桥侧墩身预埋钢板；(4)第段钢管桩定位插打；(5)第二段、第三段管桩接长；(6)分配梁施工；(7)支架验收；(8)支架预压；(9)现浇段实体施工。本发明的工艺程序清晰易懂，施工人员易于掌握，施工过程易于控制，施工质量易于保证。