scholarly journals PSHA Study Using EZ-Frisk Software Case Study Baychebaq Dam Site

2017 ◽  
Vol 7 (2) ◽  
pp. 37-46
Author(s):  
Hadi Jarahi
Keyword(s):  
2021 ◽  
Author(s):  
◽  
Singkham Lueyeevang

<p>Over the last decade, construction of hydropower dams has increased rapidly around the world, including in developing countries. For many countries including Laos, energy production and export play a significant role in promoting and boosting economic growth and development. Energy production generates substantial revenue and foreign exchange from exporting electricity and expands economic activity domestically. However, construction of hydropower dams also causes negative effects on the people who live at and around the dam site. Some local communities have been affected indirectly, while others require relocation to other areas bringing significant change, including for women. This research explores the impact of resettlement from hydropower dam creation on women by using the Nam Mang 3 hydropower dam in central Laos as a case study. This dam, completed in 2005, required the relocation of approximately 150 households from two villages at the dam site. The research draws on a social constructivist epistemology, qualitative methods including semi-structured interviews, and analysis of relevant policy documents. Interviews involved 18 participants including both male and female from the three affected villages. Results indicate that the resettlement of villagers by the Nam Mang 3 hydropower dam has generally improved living conditions of the resettled communities. Women were found to have greater opportunities to benefit from home-based business, employment and wage labouring. In addition, with better access to modern facilities and services, women have been able to save greater time from agricultural activities and divert this time saving to other economic activities. Overall, access to water supplies, roads, and transport have reduced women’s workload significantly. Access to improved health services and facilities have also improved women’s wellbeing. Girls have greater opportunities to attend school and seek employment in towns. However, this research identified some challenges experienced by the resettled such as the reduction of agricultural and grazing land area, and that new livelihood options were not accessible to all women. Instead of these challenges, the experience with the Nam Mang 3 hydropower project has highlighted one of the key lessons learnt that is worth highlighting for future resettlement programs, which is to have the resettlers fully engaged in the entire process of resettlement and livelihood strategy development.</p>


2008 ◽  
Vol 35 (10) ◽  
pp. 1177-1182 ◽  
Author(s):  
A. Melih Yanmaz ◽  
M. Engin Gunindi

There is a growing tendency to assess safety levels of existing dams and to design new dams using probabilistic approaches according to project characteristics and site-specific conditions. This study is a probabilistic assessment of the overtopping reliability of a dam, which will be designed for flood detention purpose, and will compute the benefits that can be gained as a result of the implementation of this dam. In a case study, a bivariate flood frequency analysis was carried out using a five-parameter bivariate gamma distribution. A family of joint return period curves relating the runoff peak discharges to the runoff volumes at the dam site was derived. A number of hydrographs were also obtained under a joint return period of 100 years to observe the variation of overtopping tendency. The maximum reservoir elevation and overtopping reliability were determined by performing a probabilistic reservoir routing based on Monte Carlo simulations.


2015 ◽  
Vol 74 (3) ◽  
pp. 2451-2461 ◽  
Author(s):  
Ji-Xiang Huo ◽  
Han-Zhou Song ◽  
Li Luo

2017 ◽  
Vol 225 ◽  
pp. 3-18 ◽  
Author(s):  
Jiewei Zhan ◽  
Peihua Xu ◽  
Jianping Chen ◽  
Qing Wang ◽  
Wen Zhang ◽  
...  

2006 ◽  
Vol 52 (6) ◽  
pp. 1053-1065 ◽  
Author(s):  
Zargham Mohammadi ◽  
Ezzatollah Raeisi ◽  
Michel Bakalowicz
Keyword(s):  

2014 ◽  
Vol 580-583 ◽  
pp. 250-255
Author(s):  
Yuan Zhao ◽  
Liang Qing Wang ◽  
Peng Zhou ◽  
Yue Han ◽  
Guo Rong Chen

Rock mass mechanical parameters play a significant role in geotechnical engineering design, slope stability evaluation and numerical simulation, which is commonly determined by GSI method. The simplified method using P-velocity to determine GSI (Geological Strength Index) values is proposed in this study, avoiding the limitations of Hoek-Brown method. The relationship between GSI and P-velocity is established through data collected from several projects in China. Then the dam site of Rumei hydropower station, Tibet, China has been taken as a case study to validate this relationship. This method can be utilized directly in engineering projects since it can meet with the engineering accuracy requirement and reduce the cost.


Author(s):  
Ali Jozaghi ◽  
Babak Alizadeh ◽  
Mohsen Hatami ◽  
Ian Flood ◽  
Mohammad Khorrami ◽  
...  

The application of multiple criteria decision-making (MCDM) techniques in real-life problems has increased in recent years. The need to build advanced decision models with higher capabilities that can support decision making in a broad spectrum of applications, promotes the integration of MCDM techniques with applicable systems, including artificial intelligence, and Geographic Information Systems (GIS). The Analytic Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) are amongst the most widely adopted MCDM techniques capable of resolving water resources challenges. A critical problem associated with water resource management is dam site selection. This paper presents a comparative analysis of TOPSIS and AHP in the context of decision making using GIS for dam site selection. The comparison was made based on geographic and water quality criteria. A ratio estimation procedure was used to determine the weights of these criteria. Both methods were applied for selection of optimal sites for dams in the Sistan and Baluchestan province, Iran. The results show that the TOPSIS method is better suited to the problem of dam site selection for this case study. Actual locations of dams constructed in the area were used to verify the results of both methods.


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