scholarly journals THE PERFORMANCE ANALYSIS OF THE URBAN FLOOD PREVENTION PROJECT IN KOREA

2017 ◽  
Author(s):  
JUNGNAM PARK ◽  
JEONGMIN KWON ◽  
SANGWON HAN ◽  
BYOUNGMANN PARK ◽  
JUNGGYU HAN ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Urban Flood ◽  
Flood Prevention ◽  
Prevention Project

Urban Flood Prevention

2019 ◽  
pp. 173-193
Author(s):  
Marc Illgen ◽  
Holger Ackermann
Keyword(s):  
Urban Flood ◽  
Flood Prevention

scholarly journals Dynamic Assessment of Flood Hazard Based on Points-of-Interest Data

2021 ◽  
Author(s):  
Xin Su ◽  
Weiwei Shao ◽  
Jiahong Liu
Keyword(s):  
Hazard Assessment ◽  
Flood Hazard ◽  
Dynamic Assessment ◽  
Disaster Mitigation ◽  
Mitigation Measures ◽  
Urban Flood ◽  
Flood Prevention ◽  
Points Of Interest ◽  
High Degree ◽  
The Impact

In order to better formulate flood prevention and disaster mitigation measures and reduce the impact of urban flood on social development, it is necessary to conduct a scientific and accurate flood hazard assessment. The development of big data technology has brought new opportunities for flood hazard assessment. This study used a coupling model to simulate urban flood, and used the HR method to classify flood hazard. The dynamic change process of two types of Points-of-Interest(POIs) for catering services and living services under different flood hazard degrees were counted. The results showed that (1) In the northern part of the basin, mountainous, impervious ground and the lack of effective drainage channels have combined to cause more serious floods; (2) The flood hazard were mainly low-degree in the study area. Moderate flood hazard mainly occurred in farmland and built-up land. High-degree and extreme-degree flood hazard mainly occurred on both sides of rivers in the northwest of the basin; (3) Affected by the rainfall pattern, the number of POI affected by flood presented the characteristics of “three stages” under four flood hazard degrees; (4) The POIs of the two services was most seriously affected by the flood when the rainfall just stopped; (5) In terms of the proportion of POIs affected by floods, the impact of floods on the two industries is basically the same, but from the perspective of the number of POIs affected by floods, catering services will be more affected; (6) The spatial location of the POIs led to a slight difference in the trend of the number of POIs under high-degree and extreme-degree flood hazard. This study provided a new method for urban flood hazard dynamic assessment, which could help decision makers formulate more targeted flood prevention and disaster mitigation measures

Performance analysis of flood prevention projects through flood simulation

2018 ◽  
Vol 32 (2) ◽  
pp. 169-181
Author(s):  
Jungsub Shin ◽  
◽  
Seokhyun Chung ◽  
Byoungog Cho ◽  
Seonhong Kang ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Flood Simulation ◽  
Flood Prevention

scholarly journals Optimization of Drainage Schemes for the Dike Strengthening by Warping Construction Project in the Qinhe River under Restricted Drainage Condition

2018 ◽  
Vol 246 ◽  
pp. 02019
Author(s):  
Hao-Ming Yang ◽  
Min Zhang ◽  
Cheng-Hui Dong
Keyword(s):  
Field Test ◽  
Yellow River ◽  
Construction Project ◽  
The Yellow River ◽  
Test Results ◽  
Flood Prevention ◽  
Prevention Project ◽  
Drainage Effect ◽  
Key Indicators ◽  
Safety And Stability

Dike strengthening by warping construction is one of the main construction modes for the standardized dike construction of mainstream and tributaries in the lower reaches of the Yellow River, and whether the drainage in the dike strengthening by warping construction is smooth is closely related to the safety of dike project. Restricted by topographic conditions and construction conditions, existing drainage schemes are not applicable to the Qinhe River (the Yellow River’s largest tributary) Flood Prevention Project Wuzhi Section, which is next to farm cottage. Therefore, in this paper a field test was carried out using three drainage schemes---“L” type PVC seepage drainage pipes through dike, “L” type perforated PVC seepage drainage pipes coated with geotextile and geotextile drainage grilles. The drainage velocity, silt retaining effect, water level in the silt area, dike body deformation and other key indicators were obtained through field monitoring, and the safety and stability of the dike strengthening by warping construction project were verified by numerical calculation. The field test results showed that the drainage effect of the “L” type perforated PVC seepage drainage pipes coated with geotextile and geotextile drainage grilles was obviously better than that of the “L” type PVC seepage drainage pipes through dike, but the geotextile drainage grilles had advantages in silt retaining effect, construction convenience, cost, and improvement. The field test results can provide a reference for the quick drainage design and construction of dike back deposited with silt of the dike strengthening by warping construction project in the Yellow River.

A Model for Analyzing Suicide Prevention

Crisis ◽  
2000 ◽  
Vol 21 (2) ◽  
pp. 80-89 ◽  
Author(s):  
Maila Upanne
Keyword(s):  
Risk Factors ◽  
Theoretical Model ◽  
Protective Factors ◽  
Suicide Prevention ◽  
Suicide Risk ◽  
Practical Work ◽  
Individual Risk ◽  
Self Assessment ◽  
Prevention Project ◽  
Individual Risk Factors

This study monitored the evolution of psychologists' (n = 31) conceptions of suicide prevention over the 9-year course of the National Suicide Prevention Project in Finland and assessed the feasibility of the theoretical model for analyzing suicide prevention developed in earlier studies [ Upanne, 1999a , b ]. The study was formulated as a retrospective self-assessment where participants compared their earlier descriptions of suicide prevention with their current views. The changes in conceptions were analyzed and interpreted using both the model and the explanations given by the subjects themselves. The analysis proved the model to be a useful framework for revealing the essential features of prevention. The results showed that the freely-formulated ideas on prevention were more comprehensive than those evolved in practical work. Compared to the earlier findings, the conceptions among the group had shifted toward emphasizing a curative approach and the significance of individual risk factors. In particular, greater priority was focused on the acute suicide risk phase as a preventive target. Nonetheless, the overall structure of prevention ideology remained comprehensive and multifactorial, stressing multistage influencing. Promotive aims (protective factors) also remained part of the prevention paradigm. Practical working experiences enhanced the psychologists' sense of the difficulties of suicide prevention as well as their criticism and feeling of powerlessness.

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