道路等线状地物的科学规划是协调蓄滞洪区防洪与自身经济发展问矛盾的重耍手段。 基于结合考虑洪水危险度、暴露度及脆弱性的洪灾风险管理模式，对天津市大黄堡注蓄滞洪区内道路等线状地物的科学规划进行探讨， 提出由洪灾风险确定最优道路建设方案的途径。鉴于蓄滞洪区内各类财产的空间分布不具规律性，导致洪灾损失随地貌随机变化的特点，需采用水动力模型计算出的淹没结果确定洪灾风险。 在天津市大黄堡洼蓄滞洪区的应用表明，依据洪灾风险规划道路是必要的，它具有能够兼顾全局防洪的优越性。 所得结论为，在大黄堡洼蓄滞洪区内布设道路时，当道路方向与洪水演进主流方向呈90°，道路位置距分洪口门约10 km左右，过流涵洞尺寸为3m 时， 洪水造成的经济损失最小，该方案下所产生的洪灾风险最小。

Scientific planning of roads and other linear features is an important means of coordinating the contradiction between flood control and detention areasand economic development. Therefore, in this paper, the flood danger, exposure, and vulnerability, the scientific planning of roads and other linear ground features were discussed based the on flood risk management model in the Dahuangpuwa flood detention area in Tianjin . Moreover, the way to determine the optimal road construction plan from flood risk was put forward. Given the irregularity of the spatial distribution of various kinds of property in the flood detention area， which leads to the characteristics of random variation of flood losses with geomorphology, flooding results calculated by hydrodynamic models need to be used to determine flood risk. The application in Dahuangpuwa flood detention area in Tianjin showed that road planning based on flood risk was necessary,and it has the advantage of taking into account the overall flood control. 1n conclusion, the arrangements of the road in Dahuangpuwa flood detention area, the direction of the road should be 90°with the mainstream direction of flood routing.while the road position should be about 10 km from the flood diversion gate and the size of the culvert should be 3m. By doing this practice the economic loss caused by the flood may be the least, and the flood risk under this scheme may mininial.

国家自然科学基金（51679184）；天津市水务局科研专项（KY2015-10)