Author: Sadik Jaffer Al-MusawePublisher:
ISBN:
Category : Clay soils
Languages : en
Pages : 299
Book Description
Prediction of Hydraulic Conductivity of Clay Liners
Author: Sadik Jaffer Al-MusawePublisher:
ISBN:
Category : Clay soils
Languages : en
Pages : 299
Book Description
Prediction and Validation of Hydraulic Conductivity of Compacted Soil Liners
Author: Jody P. KraenzelFull-Scale Evaluation of the Performance of Three Compacted Clay Liners
Author: Robert P. ChapuisPublisher:
ISBN:
Category : Bentonite
Languages : en
Pages : 9
Book Description
This paper examines the performance of three compacted clay liners for holding and treating municipal wastewater in three lagoons. The quality controls for the liners included verification of compaction conditions (dry density and water content) and full-scale leakage tests. These were made by filling each lagoon with clear water and monitoring the leakage rate versus water level in the lagoon. This paper presents the quality control data, the predicted local values of the hydraulic conductivity k versus void ratio e, and degree of saturation Sr as achieved by compaction, and a statistical prediction of the large-scale k value for each liner. For this case history, one full-scale test was performed before winter and the measured large-scale k value agreed with the predicted value. Two full-scale tests were performed the following spring, and revealed that frost had seriously damaged the liners of the two lagoons, which had been left empty during winter. The paper thus validates a previously proposed model for predicting hydraulic conductivity, and it also provides a statistical approach to predict the large-scale k value of undamaged clay liners.
Hydraulic Conductivity and Waste Contaminant Transport in Soil
Author: David Edwin DanielPublisher: ASTM International
ISBN: 0803114427
Category : Bentonite
Languages : en
Pages : 617
Book Description
Assessment of the Performance of Engineered Waste Containment Barriers
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309108098
Category : Science
Languages : en
Pages : 135
Book Description
President Carter's 1980 declaration of a state of emergency at Love Canal, New York, recognized that residents' health had been affected by nearby chemical waste sites. The Resource Conservation and Recovery Act, enacted in 1976, ushered in a new era of waste management disposal designed to protect the public from harm. It required that modern waste containment systems use "engineered" barriers designed to isolate hazardous and toxic wastes and prevent them from seeping into the environment. These containment systems are now employed at thousands of waste sites around the United States, and their effectiveness must be continually monitored. Assessment of the Performance of Engineered Waste Containment Barriers assesses the performance of waste containment barriers to date. Existing data suggest that waste containment systems with liners and covers, when constructed and maintained in accordance with current regulations, are performing well thus far. However, they have not been in existence long enough to assess long-term (postclosure) performance, which may extend for hundreds of years. The book makes recommendations on how to improve future assessments and increase confidence in predictions of barrier system performance which will be of interest to policy makers, environmental interest groups, industrial waste producers, and industrial waste management industry.
Metaheuristics in Water, Geotechnical and Transport Engineering
Author: Xin-She YangPublisher: Newnes
ISBN: 0123983177
Category : Mathematics
Languages : en
Pages : 503
Book Description
Due to an ever-decreasing supply in raw materials and stringent constraints on conventional energy sources, demand for lightweight, efficient and low cost structures has become crucially important in modern engineering design. This requires engineers to search for optimal and robust design options to address design problems that are often large in scale and highly nonlinear, making finding solutions challenging. In the past two decades, metaheuristic algorithms have shown promising power, efficiency and versatility in solving these difficult optimization problems. This book examines the latest developments of metaheuristics and their applications in water, geotechnical and transport engineering offering practical case studies as examples to demonstrate real world applications. Topics cover a range of areas within engineering, including reviews of optimization algorithms, artificial intelligence, cuckoo search, genetic programming, neural networks, multivariate adaptive regression, swarm intelligence, genetic algorithms, ant colony optimization, evolutionary multiobjective optimization with diverse applications in engineering such as behavior of materials, geotechnical design, flood control, water distribution and signal networks. This book can serve as a supplementary text for design courses and computation in engineering as well as a reference for researchers and engineers in metaheursitics, optimization in civil engineering and computational intelligence. - Provides detailed descriptions of all major metaheuristic algorithms with a focus on practical implementation - Develops new hybrid and advanced methods suitable for civil engineering problems at all levels - Appropriate for researchers and advanced students to help to develop their work
Predictions of Hydraulic Conductivity of Compacted Clays Based on Micro and Macroscopic Parameters
Author: Kwang Yeol LeeNeural Networks with R
Author: Giuseppe CiaburroPublisher: Packt Publishing Ltd
ISBN: 1788399412
Category : Computers
Languages : en
Pages : 264
Book Description
Uncover the power of artificial neural networks by implementing them through R code. About This Book Develop a strong background in neural networks with R, to implement them in your applications Build smart systems using the power of deep learning Real-world case studies to illustrate the power of neural network models Who This Book Is For This book is intended for anyone who has a statistical background with knowledge in R and wants to work with neural networks to get better results from complex data. If you are interested in artificial intelligence and deep learning and you want to level up, then this book is what you need! What You Will Learn Set up R packages for neural networks and deep learning Understand the core concepts of artificial neural networks Understand neurons, perceptrons, bias, weights, and activation functions Implement supervised and unsupervised machine learning in R for neural networks Predict and classify data automatically using neural networks Evaluate and fine-tune the models you build. In Detail Neural networks are one of the most fascinating machine learning models for solving complex computational problems efficiently. Neural networks are used to solve wide range of problems in different areas of AI and machine learning. This book explains the niche aspects of neural networking and provides you with foundation to get started with advanced topics. The book begins with neural network design using the neural net package, then you'll build a solid foundation knowledge of how a neural network learns from data, and the principles behind it. This book covers various types of neural network including recurrent neural networks and convoluted neural networks. You will not only learn how to train neural networks, but will also explore generalization of these networks. Later we will delve into combining different neural network models and work with the real-world use cases. By the end of this book, you will learn to implement neural network models in your applications with the help of practical examples in the book. Style and approach A step-by-step guide filled with real-world practical examples.
Saturated and Near-saturated Hydraulic Conductivity in Clay Soils
Author: Ingmar MessingPublisher:
ISBN: 9789157647405
Category : Conduction électrique
Languages : en
Pages : 66
Book Description
Author: A. S. Rogowski