scholarly journals URBAN FLOOD ANALYSIS CONSIDERING UNDERGROUND SPACE

2008 ◽  
Vol 52 ◽  
pp. K7-K8
Author(s):  
Keiichi TODA
Author(s):  
KEIICHI TODA ◽  
KAZUYA INOUE ◽  
SHINJI AIHATA

Author(s):  
Nianqiang Zhang ◽  
Na Li ◽  
Jing Wang ◽  
Sheng Chen ◽  
Hailei Huang

Water ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 494 ◽  
Author(s):  
Ah-Long Son ◽  
Byunghyun Kim ◽  
Kun-Yeun Han

2007 ◽  
Vol 51 ◽  
pp. 541-546
Author(s):  
Nozomu YONEYAMA ◽  
Shinji AIHATA ◽  
Keiichi TODA ◽  
Daisuke YAMAMOTO

2010 ◽  
Vol 62 (6) ◽  
pp. 1386-1392 ◽  
Author(s):  
N. D. Sto. Domingo ◽  
A. Refsgaard ◽  
O. Mark ◽  
B. Paludan

The potential devastating effects of urban flooding have given high importance to thorough understanding and management of water movement within catchments, and computer modelling tools have found widespread use for this purpose. The state-of-the-art in urban flood modelling is the use of a coupled 1D pipe and 2D overland flow model to simultaneously represent pipe and surface flows. This method has been found to be accurate for highly paved areas, but inappropriate when land hydrology is important. The objectives of this study are to introduce a new urban flood modelling procedure that is able to reflect system interactions with hydrology, verify that the new procedure operates well, and underline the importance of considering the complete water cycle in urban flood analysis. A physically-based and distributed hydrological model was linked to a drainage network model for urban flood analysis, and the essential components and concepts used were described in this study. The procedure was then applied to a catchment previously modelled with the traditional 1D-2D procedure to determine if the new method performs similarly well. Then, results from applying the new method in a mixed-urban area were analyzed to determine how important hydrologic contributions are to flooding in the area.


1983 ◽  
Author(s):  
Robert L. Tortorelli ◽  
T.L. Huntzinger ◽  
D.L. Bergman ◽  
A.L. Patneaude

2010 ◽  
Vol 62 (8) ◽  
pp. 1807-1812 ◽  
Author(s):  
T. Ishigaki ◽  
Y. Asai ◽  
Y. Nakahata ◽  
H. Shimada ◽  
Y. Baba ◽  
...  

Underground is an important space that supports function of cities, such as subways, shopping malls and basement parking. However in consequence a new type of disaster, the "urban flood" menaces these spaces. In the last decade, urban floods struck Tokyo, Nagoya and Fukuoka. When underground inundation occurs, people must evacuate to the ground as soon as possible. But, when such an inundation situation happens, aged persons may not be able to evacuate quickly to ground level. In this paper, the method of safety assessment for aged persons is discussed on the experimental results and flood simulation data in an underground space. As a criterion of the safety evacuation, the specific force per unit width is used in this study. From the result of experiments, it is difficult to implement safety evacuation when the specific force per unit width is over 0.100 m2 for the aged male.


Author(s):  
Nianqiang Zhang ◽  
Na Li ◽  
Jing Wang ◽  
Sheng Chen ◽  
Shaowei Qiu

Considering characteristics of high river density, special underlying surface in plain river network region, and municipal drainage system function, river network drainage unit model is proposed, which is defined as a region surrounded by main river or embankment. Flood storage variety and control projects regulation of small rivers in each unit is simulated. With drainage catchment as an object, according to its drainage capacity, simplified municipal drainage model was developed. Coupling river network drainage unit model, simplified municipal drainage model and 2D flood routing model, urban flood analysis model for plain tidal river network region was developed, which could be applied to analyzing flood from upstream river, storm surge and local rainfall. Demonstration research was carried out in Puxi flood protected area in Shanghai.


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