摘要
广州同德围南北高架桥基本沿新市涌架设,在新市涌河道规划控制线范围内共布设桥墩264个。针对新市涌雍水严重并产生严重内涝问题,采用广东省水利水文计算软件Hytoolkit2.0及二维水流数学模型MIKE21推算建桥前后阻水雍高,量化桥墩对新市涌的雍水影响范围及壅高值。通过计算得知距离桥墩布设范围越远,桥墩雍高值越小,桥梁雍水范围远大于桥梁布设范围。
The Guangzhou Tongdewei North-south Viaduct is built basically along the Xinshi River, with 264 piers arranged within the range of the planning control line of the river. Considering the backwater and waterlogging problems occurred in Xinshi River, Hytoolkit2.0 and mathematical model MIKE21 are used to calculate the bridge backwater and quantify the effects of piers on the Xinshi River s drainage. The calculation reveals that the farther the piers stand, the less of the bridge backwater is, and that the bridge backwater range is much more than the bridge layout.
引文
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