摘要
桥墩冲刷是桥梁水毁的主要原因之一,开展桥墩冲刷的研究不但具有重大的学术价值,而且还具有重要的工程应用价值和明显的社会经济效益。文章运用实测数据通过理论推导建立了桥墩局部冲刷深度计算公式,新公式在考虑了多方面因素的同时增加了桥墩布置与水流方向的斜交角度θ,新公式结构简单,便于计算。最后运用已有的工程实测数据对新公式进行了验证。结果表明,新公式的结构是合理的,可安全的应用于实践。
The pier scour is one of the major reasons for the damage of bridges. So experimental research on the pier scour has not only great academic values but also important engineering values , social and economic benefits. Based on the measured data, the formu- la of local erosion can be established by theoretical deductions. The new formula not only takes into account the multiple factors but also increases the angle θ between the pier layout and the direction of flow. The new structure of the formula is simple and easy. Fi- nally, the correction measured data of the project verifying the new formula is used. The result shows that the structure of the new formula is reasonable. Besides, the existing pier scour protective methods are generalized.
出处
《中国农村水利水电》
北大核心
2010年第1期104-106,109,共4页
China Rural Water and Hydropower
