黄河易冲刷地层栈桥钢管桩入土深度的确定

Analysis of Determining Depth of Soil of Steel Pipe Piles of Trestle Bridges in Erosive Strata of Yellow River

以官渡黄河大桥钢栈桥设计为实例,结合黄河河床雨季及小浪底水库调水调砂过程中冲刷变化大的情况,对黄河游荡性河床地质情况下钢栈桥的方案设计、结构优化进行分析与论述,从满足施工要求荷载、使用及施工材料的选取方面,阐述了钢栈桥的设计要点,为今后同类工程提供借鉴。

Taking the design of the steel trestle of the Guandu Yellow River Bridge as an example,the article analyzes the scheme design and structural optimization of the steel trestle under the geological conditions of the wandering riverbed of the Yellow River,taking into account the large changes in erosion during the rainy season of the Yellow River bed and the water and sediment regulation of Xiaolangdi Reservoir.The paper expounds the design points of the steel trestle bridge from the aspects of meeting the requirements of construction,load,use and selection of construction materials,and provides engineering reference for similar projects in the future.