Safety control of concrete dams is required due to the potential great loss of life and property in case of dam failure. The purpose of this paper is to feed back the operational control loads for concrete dam displacement using the maximum entropy method. The proposed method is not aimed at a judgement about the safety conditions of the dam. When a strong trend-line effect is evident, the meth...

A total of 257 fishes from four families, Clariidae, Cichlidae, Cyprinidae and Schilbeidae were collected from three localities: the Sand River Dam, Swaziland; the Nylsvlei Nature Reserve, South Africa and the Vaal Dam and Vaal River Barrage, South Africa. Only fishes (n= 154) from Clariidae and Cichlidae were found to be infected with trypanosomes. A total of 221 Clarias gariepinus (Burchell 1...

The migration of fish is influenced by the unique environmental characteristics destination and migratory habitat preferences. There are three fishways in Miyanaka Intake Dam. rock-ramp fishway was newly established 2012, creating an environment with different flow velocities water depths. purpose this study to investigate effectiveness new for native through two surveys. In first survey, traps...

Abstract The submerged dam is one of the commonly used schemes for prevention and treatment pit-type collapse, which often in collapse emergency Anhui Jiangsu sections Yangtze River has achieved good silt-promoting effects. However, height lacks theoretical experimental basis design been determined by experience past. Through physical model Guizhou Village Yangzhong Reach, five different height...

Data-based dam monitoring model can predict behavior and provide scientific basis for risk assessment decision-making of engineering. Traditional safety models established by multiple regression, stepwise gray theory, other statistics-based methods have poor robustness generalization. For this reason, an optimized support-vector machine (SVM) whose novelty lies in simple implementation, self-ad...

Low-head dam impoundments modify local habitat and alter fish assemblages; however, to our knowledge, the pattern of how fish assemblages in the impoundments relate to local habitat, tributary position, and dam characteristics is still unclear. We used data collected in 62 impoundments created by low-head dams in headwater streams of the Qingyi River, China, to examine relationships between fis...

The Bagong Dam evasion tunnel is part of the dam construction which functions to drain water flow so that work can be done. In planning evasive tunnels, it necessary study geological, geotechnical and structural conditions tunnel. This intended provide an overview subsurface engineering geological research area, as determine stability then recommendations for support used. method used Rock Tunn...

Seepage is the primary cause of dam failures. Conducting regular seepage analysis for dams can effectively prevent accidents from occurring. Accurate and rapid determination parameters a prerequisite calculation in hydraulic engineering. The Whale Optimization Algorithm (WOA) was combined with Support Vector Regression (SVR) to invert conductivity. good point set initialization method, cosine-b...

Paul C. Rizzo Associates, Inc. (RIZZO) has developed efficient computational tools to evaluate the liquefaction potential of earth embankment dams located within high risk seismic regions. Two relevant case histories are the Saluda Dam and the Santee Cooper East Dam Extension, both structures susceptible to liquefaction, and located in South Carolina. Saluda Dam presents liquefaction risks with...

An infinite dam with compound Poisson inputs and a statedependent release rate is considered. For this dam, we solve Kolmogorov’s backward differential equation to obtain the Laplace transforms of the first exit times in terms of a certain positive kernel. This allows us to provide an explicit expression for the Laplace transform of the wet period for a finite dam.