洪水风险图可以综合直观反映某一区域洪灾发生时的淹没特征信息、区域的地理特征信息和社会经济,其已成为洪水风险管理的重要科学依据。为加强南澧河区域的安全建设规划,利用MIKE软件建立了南澧河河道及两岸保护区的一维和二维耦合水动力学模型,采用海河流域“96·8”历史洪水资料进行了模型的验证。利用该模型模拟了南澧河发生100 a一遇的洪水演进过程。通过对比验证,此模型可以作为南澧河洪水风险分析的依据,为南澧河周边的安全建设提供重要依据。
Abstract
Flood risk map is a vital scientific basis for flood risk management as it reflects the flood features, geographic elements and socio-economic information in the submerged area comprehensively and directly. To strengthen the safety construction planning of Nanli river area, a hydrodynamic model coupling 1D and 2D models of the river channel and both banks of Nan liriver is established by using MIKE software. The model test result is verified by historical flood data in August of 1996 in the Haihe river basin. The coupled model is used to simulate the flood routine process for 100-year event flood. Results validate that the established model could be used as a basis for flood risk analysis of Nanli river, and provide reference for the safety construction around the Nanli river.
关键词
南澧河 /
洪水风险分析 /
MIKE软件 /
一维和二维耦合 /
水动力学模型
Key words
Nanli river /
flood risk analysis /
MIKE /
1D-2D coupling /
hydrodynamic model
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] GARCIA R,KAHAWITA R A.Numerical Solution of the St.Venant Equations with the MacCormack Finite Difference Scheme[J].International Journal for Numerical Methods Fluids, 1986,6(5):259-274.
[2] BLADE E, GOMES-VALENTIN M,DOLZ J,et al. Integration of 1D and 2D Finite Volume Schemes for Computations of Water flow in Natural Channels[J].Advances in Water Resources,2012,42:17-29.
[3] MORALES H M,GARCIA N P,BURGUETE J,et al.A Conservative Strategy to Couple 1D and 2D Models for Shallow Water flow Simulation[J]. Computers & Fluids,2013,81:26-44.
[4] 刘海娇. 基于一维、二维水力学耦合计算模型的洪水风险分析研究[D].天津:天津大学,2012.
[5] 姜晓明,李丹勋,王兴奎. 基于黎曼近似解的溃堤洪水一维-二维耦合数学模型[J].水科学进展,2012,23(2):214-221.
[6] 陈文龙,宋利祥,邢领航,等. 一维-二维耦合的防洪保护区洪水演进数学模型[J].水科学进展,2014,25(6):848-855.
[7] 李大鸣,管永宽,李玲玲,等. 蓄滞洪区洪水演进数学模型研究及应用[J].水利水运工程学报,2011,9(3):27-35.
[8] DUSHMANTA D,JAHANGIR A,KAZUO U,et al. A Two-dimensional Hydrodynamic Model for Flood Inundation Simulation:A Case Study in the Lower Mekong River Basin[J]. Hydrological Progresses,2007,21:1223-1237.
[9] 杨莉玲,宋利祥,邓军涛,等. 一、二维耦合数学模型在感潮河网洪水风险图编制中的应用[J].raybet体育在线
院报,2017,34(9):36-40.
[10] 李大鸣,胡永文,王笑,等. 城市暴雨沥涝数学模型的研究与应用[J].raybet体育在线
院报,2016, 33(10):46-50.
基金
博士后科研项目择优资助(B2016005007)
PDF(4348 KB)
