scholarly journals Review of Dam-break Research of Earth-rock Dam Combining with Dam Safety Management

2012 ◽  
Vol 28 ◽  
pp. 382-388 ◽  
Author(s):  
Luo You ◽  
Chen Li ◽  
Xu Min ◽  
Tong Xiaolei
Keyword(s):  
Safety Management ◽  
Dam Break ◽  
Dam Safety

scholarly journals Superposed Natural Hazards and Pandemics: Breaking Dams, Floods, and COVID-19

2021 ◽  
Vol 13 (16) ◽  
pp. 8713
Author(s):  
Mohammad Amin Hariri-Ardebili ◽  
Upmanu Lall
Keyword(s):  
Natural Hazard ◽  
Safety Management ◽  
Human Life ◽  
Dam Break ◽  
Reciprocal Relationship ◽  
Dam Safety ◽  
Loss Of Life ◽  
Safety Issues ◽  
Global Pandemic ◽  
Insight Into

Within the engineering domain, safety issues are often related to engineering design and typically exclude factors such as epidemics, famine, and disease. This article provides a perspective on the reciprocal relationship and interaction between a natural hazard and a simultaneous pandemic outbreak and discusses how a catastrophic dam break, combined with the ongoing COVID-19 pandemic, poses a risk to human life. The paper uses grey- and peer-reviewed literature to support the discussion and reviews fundamentals of dam safety management, potential loss of life due to a dam break, and the recent evolution in dam risk analysis to account for the COVID-19 outbreak. Conventional risk reduction recommendations, such as quick evacuation and sheltering in communal centers, are revisited in the presence of a pandemic when social distancing is recommended. This perspective manuscript aims to provide insight into the multi-hazard risk problem resulting from a concurring natural hazard and global pandemic.

The Economic Loss Estimate of Dam Break Based on 2D Dam Break-Wave Numerical Simulation

2013 ◽  
Vol 405-408 ◽  
pp. 2457-2462
Author(s):  
Zhao Wei Shen ◽  
Cun Hong Pan ◽  
Sui Gao Ye ◽  
Hai Yan Lu ◽  
Li Hui Wang
Keyword(s):  
Regional Economy ◽  
Safety Management ◽  
Economic Loss ◽  
Dam Break ◽  
Dam Failure ◽  
Dam Safety ◽  
Flux Vector ◽  
Flux Vector Splitting ◽  
Loss Estimate ◽  
2D Numerical Model

A 2D numerical model based on Boltzmann equation and an unstructured FVM grid with a kinetic flux vector splitting (KFVS) scheme was developed to simulate dam break-wave. As an example, propagation of the dam-break wave of one reservoir dam at Yuhang District of Hangzhou in Hangzhou was simulated by this model. Using regional economy, population, and geography data of 2008, the economic loss caused by dam failure was evaluated. The result shows that total economic loss is about 20% of the GDP in Yuhang, which is close to the conclusion of some existing researches. It is foreseeable that this method would to be used more widely in Zhejiang for dam safety management.

scholarly journals Reservoir Flood Routing Simulation for Dam Safety Management in Thailand

2021 ◽  
Vol 16 (4) ◽  
pp. 596-606
Author(s):  
Rangsarit Vanijjirattikhan ◽  
Chinoros Thongthamchart ◽  
Patsorn Rakcheep ◽  
Unpong Supakchukul ◽  
Jittiwut Suwatthikul ◽  
...  
Keyword(s):  
Safety Management ◽  
Simulation Software ◽  
Flood Routing ◽  
Dam Safety ◽  
Dam Construction ◽  
Reservoir Water ◽  
Reservoir Water Level ◽  
Remote Monitoring System ◽  
Operation Rules ◽  
Gate Opening

A reservoir flood routing simulation software with spillway operation rules that are readable and configurable by the spillway operator is developed in this study. The software is part of the Dam Safety Remote Monitoring System used by the Electricity Generating Authority of Thailand. The flood routing simulation is implemented using a storage-indication routing method, which is a hydrologic method. The spillway operation rules are exhibited in a tree-based structure, in which the spillway gate opening is derived from the current reservoir water level (RWL), spillway gate opening, and flood situation if the peak inflow has passed. The simulation results show that the simulated RWL is similar to the RWL data in the dam construction manual. This verifies the accuracy of the reservoir flood routing simulation, which is useful for planning the spillway operation.

A Comparative Analysis of Dam Safety Assurance Laws

2014 ◽  
Vol 1 (1) ◽  
pp. 29-57 ◽  
Author(s):  
John Dean Pisaniello
Keyword(s):  
Comparative Analysis ◽  
Large Scale ◽  
Safety Management ◽  
Dam Safety ◽  
Safety Issues ◽  
Safety Assurance ◽  
The World ◽  
The Individual ◽  
Privately Owned

A number of horrific failures of both public and privately owned dams in recent decades has triggered serious concern over the safety of dams throughout the world. However, in Australia, although much Government attention is being devoted to the medium- to large-scale dams, minimal attention is being paid to the serious potential cumulative, catchment-wide problems associated with smaller private dams. The paper determines how to consider addressing hazardous private dam safety issues generally through a comparative analysis of international dam safety policy/law systems. The analysis has identified elements of best and minimum practice that can and do exist successfully to provide deserved assurance to the community of the proper safety management of hazardous private dams at both the individual and cumulative, catchment-wide levels. These elements provide benchmarks that enable ‘appropriate’ legislative arrangements to be determined for different jurisdictional circumstances as illustrated with an Australian policy-deficient case study.

Small dams safety issues – engineering/policy models and community responses from Australia

Water Policy ◽  
2006 ◽  
Vol 8 (1) ◽  
pp. 81-95 ◽  
Author(s):  
John D. Pisaniello ◽  
Wu Zhifang ◽  
Jennifer M. McKay
Keyword(s):  
Large Scale ◽  
Safety Management ◽  
Cost Effective ◽  
Dam Safety ◽  
Allocation Policy ◽  
Policy Model ◽  
Risk Levels ◽  
Safety Issues ◽  
Community Attitudes ◽  
Engineering Consulting

Dam safety is a serious issue worldwide. However, in many countries, for example, China and Australia, although much attention is being devoted to the medium to large-scale dams, little or no attention is being paid to the serious potential problems associated with smaller dams, particularly the potential “cumulative domino effect” failure risk to the larger public dams. Farmers in Australia have often overlooked the common law obligation to review/design dams in line with current standards because of high engineering consulting costs. This leaves them vulnerable to litigation if their dam fails and the downstream community is susceptible to unacceptable risk levels. To overcome this problem, an innovative Australian-developed cost-effective spillway design/review procedure has been developed to minimise cost burdens to dam owners and encourage better dam safety management. A recent survey undertaken in the Australian “policy model” State of Victoria to test community attitudes to the procedure and implemented dam safety and water allocation policy is also reported here. This survey clearly demonstrates that farmers require more than awareness and encouragement in order to ensure that they look after their dams properly.

Dynamic Analysis of Dam-Break Loss Based on Unascertainty Theory

2013 ◽  
Vol 325-326 ◽  
pp. 1310-1313
Author(s):  
Hong Tao Yu
Keyword(s):  
Safety Management ◽  
Evaluation Model ◽  
Dam Break ◽  
Practical Significance ◽  
Management Level ◽  
Retaining Structure ◽  
Local Material ◽  
Rapid Construction ◽  
Security Problem ◽  
Economic Developments

As the Water-retaining Structure of reservoir, Earth-Rock Dam was widely used because of a wide accommodation, local material and rapid construction speed .There are 86 thousand dams having been built in our country, 90% of which are earth-rockfill dams. However, the aging and disease of earth-rockfill dams are becoming more and more serious. As time goes by, its security problem gets more and more attention. The risk management of dam is a kind of new concept of safety management which is brought in from abroad. One of the most prominent characteristics is that it is conscious both of its own safety and the effect of downstream, which effectively overcomes the deficiency of today's management mode, and it has practical significance to improve earth-rockfill dams management level , ensuring construction and public safety. The study gives the analysis of the economic developments effect on the dam-break loss, and establishes the dynamic predication evaluation model based on uncertainty theory. The model can effectively reflect the time variant characteristics of dam-break loss, which provides new attempt to dynamic predication of dam-break loss.

An online anomaly recognition and early warning model for dam safety monitoring data

2019 ◽  
Vol 19 (3) ◽  
pp. 796-809 ◽  
Author(s):  
Xing Li ◽  
Yanling Li ◽  
Xiang Lu ◽  
Yongfei Wang ◽  
Han Zhang ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Early Warning ◽  
Robust Statistics ◽  
Safety Management ◽  
Monitoring Data ◽  
Dam Safety ◽  
Least Squares Regression ◽  
Early Warning Model ◽  
Robust Recognition ◽  
Warning Model

Anomaly recognition and early warning of monitoring data are of great significance in the field of modern dam safety management. Multidimensional least-squares regression model with the Pauta criterion is a well-known traditional method, but it is easy to misjudge the normal value and miss the outliers. Thereby, an online robust recognition and early warning model combining robust statistics and confidence interval is proposed to detect outliers. The threshold [Formula: see text] is set based on the derived confidence interval [Formula: see text] and the scale estimator [Formula: see text] (derived from the location M-estimator). Monitoring data obtained from a gravity dam and a rockfill dam were taken as examples to demonstrate the robust recognition and early warning model. The results show that the proposed method can effectively improve the reliability of anomaly recognition and early warnings, which is valuable in engineering applications.

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