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为了解决常规方法计算出来的桥前最大壅水高度偏小的问题,采用数学模型HEC-RAS、JTJ 062-91《公路桥位勘测设计规范》(以下简称《规范》)推荐的简化公式及《桥梁水力学》推荐的简化壅水公式等3种方法分别在房山区马刨泉河改建辛庄桥中进行了计算与比较。结果表明:通过HECRAS计算的壅水值和《规范》推荐的简化公式计算值均比实际偏小很多,而采用《桥梁水力学》推荐的简化壅水公式计算的结果与实际相差不大。
In order to solve the problem that the maximum height of the pre-bridge water calculated by the conventional method is too small, the simplified formula recommended by the mathematical model HEC-RAS, JTJ 062-91 “Highway Bridge Survey Design Code” (hereinafter referred to as the “Code” Bridge Hydraulic "recommended simplified water formula and other three methods were in Fangshan District Ma Bingquan River reconstruction Xinzhuang Bridge were calculated and compared. The results show that the calculated values of Huanrui by HECRAS and the simplified formulas recommended by HOSPITAL are both much smaller than the actual ones. However, the calculated results using the simplified water formula recommended by Bridge Hydraulics are not different from the actual ones.