本文選題：蓄滯洪區(qū) + 地面沉降�。� 參考：《中國農(nóng)村水利水電》2014年05期

【摘要】：隨著累計(jì)地面沉降量的增加,蓄滯洪區(qū)內(nèi)的洪水特性發(fā)生了一定程度的改變。以賈口洼蓄滯洪區(qū)為例,通過對其進(jìn)行地面沉降分析,構(gòu)建基于兩種不同地面高程資料的二維水動(dòng)力模型,對大清河百年一遇設(shè)計(jì)洪水進(jìn)行演進(jìn)模擬。通過比較地面沉降前后洪水演進(jìn)過程、淹沒水位和洪水淹沒面積的差異,得出如下結(jié)論:在入流過程和蓄水量完全相同的情況下,地面沉降會(huì)引起賈口洼蓄滯洪區(qū)前期洪水演進(jìn)速度變緩,淹沒水位降低,最大淹沒范圍增大。該結(jié)論可為滯洪區(qū)的防洪減災(zāi)及大清河防洪調(diào)度提供決策依據(jù)和科學(xué)指導(dǎo)。
[Abstract]:With the increase of the accumulated land subsidence, the flood characteristics in the flood storage and detention area have changed to a certain extent. Taking Jiakouwa flood storage and detention area as an example, a two-dimensional hydrodynamic model based on two kinds of surface elevation data was constructed by analyzing the ground subsidence, and the design flood was simulated once in a hundred years in Daqing River. By comparing the process of flood routing before and after land subsidence, the difference between submerged water level and flood submerged area, the following conclusions are drawn: under the condition that the inflow process and the volume of storage are identical, The ground subsidence will cause the flood in Jiakouwa flood storage and detention area to slow down, the submerged water level will decrease, and the maximum submergence range will increase. The conclusion can provide decision basis and scientific guidance for flood control and disaster reduction in flood detention area and flood control operation of Daqing River.
【作者單位】： 天津大學(xué)水利工程仿真與安全國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：水利部公益性行業(yè)專項(xiàng)經(jīng)費(fèi)項(xiàng)目(201301069)
【分類號】：TV873;P642.26

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