基于Arcgis的圩区设计内涝水位计算

南京作为中国东部地区重要的中心城市,市域内地铁线路发达,尤其长江两岸圩区内站点分布较为密集。圩区内涝水位是影响地铁站点布置、设计及施工的重要因子。本文以南京地铁站点所在某圩区为例,将实测地形高程数据导入Arcgis进行三角网格差分处理,生成圩区的水位～调蓄量关系,再通过水文方法计算的内涝水量,查询水位～调蓄量关系,得出地铁设计标准下圩区内涝水位。提供一种内涝水位计算方法,为今后类似工作提供参考。

Calculation of waterlogging level in polder area base on Arcgis

Nanjing, as an important central city in the eastern region of China, has developed subway lines within the city, especially with densely distributed stations in the embankment areas on both sides of the Yangtze River. The waterlogging level in the polder area is an important factor affecting the layout, design and construction of subway stations. In this paper, taking a polder area where the Nanjing subway station is located as an example, the measured terrain elevation data is imported into ArcMap for triangular grid difference processing to generate the relationship between water level and storage volume in the polder area. Based on the storage capacity relationship, the waterlogging water level in the polder area under the subway design standard is obtained. Provide a calculation method for waterlogging water level to provide reference for similar future work.