Nowadays, demands on modern civil engineering structures require not only safe technical solutions, but also additional approaches, involving ecological, sociological and economical aspects. This book reacts on these new requirements with a focus on earth structures for transport engineering, mainly for motorways and railways. Technical demands have to be adequately related to the risk with which the design and execution are connected. Soil used for the construction, together with subsoil, are natural materials with a high degree of inhomogeneity. Therefore, the risk when constructing with such materials is much higher than for structures utilizing man-made materials. The engineering approach is firstly focused on the geotechnical risk identification and subsequently on the reduction of this risk. Geotechnical risk is linked to the uncertainties for individual phases of the design and construction processes. Ground model, geotechnical design model, calculation model and structure execution are the main phases of the above-mentioned processes. Risk reduction involves the lowering of the range of uncertainties for individual phases, guaranteeing safe and optimal technical solutions. Eurocode 7 "Geotechnical design" creates a general frame of this risk identification and reduction approach. Earth structures are offering great opportunities for sustainability approach. Therefore, the possibilities how to decrease consumption of land (greenfields), energy and natural aggregates are at the centre of interest. In parallel to sustainability, the principles of availability and affordability for transport infrastructures are discussed. The main aim there is to eliminate the impact of interaction of the transport infrastructure with natural and man-made hazards, thus guaranteeing long-term functionality. This book will be of interest to specialists responsible for transport infrastructure planning, investors (project owners) of motorways and railways and environmental engineers. The main focus is on those responsible for geotechnical investigations, earth structures design and on contractors of such structures.
Soil represents the oldest and most-used building material, yet up to now the subject of earthen structures has not been fully addressed. This book describes the principles of soil as construction material including its treatment using geosynthetics and stabilization. The book focuses on the principles, logic of processes, understanding of the most important problems, so that all participants in the construction project can build earth structures more safely and economically.
Soil represents the oldest and most-used building material, yet up to now the subject of earthen structures has not been fully addressed. This book describes the principles of soil as construction material including its treatment using geosynthetics and stabilization. The book focuses on the principles, logic of processes, understanding of the most important problems, so that all participants in the construction project can build earth structures more safely and economically.
Nowadays, demands on modern civil engineering structures require not only safe technical solutions, but also additional approaches, involving ecological, sociological and economical aspects. This book reacts on these new requirements with a focus on earth structures for transport engineering, mainly for motorways and railways. Technical demands have to be adequately related to the risk with which the design and execution are connected. Soil used for the construction, together with subsoil, are natural materials with a high degree of inhomogeneity. Therefore, the risk when constructing with such materials is much higher than for structures utilizing man-made materials. The engineering approach is firstly focused on the geotechnical risk identification and subsequently on the reduction of this risk. Geotechnical risk is linked to the uncertainties for individual phases of the design and construction processes. Ground model, geotechnical design model, calculation model and structure execution are the main phases of the above-mentioned processes. Risk reduction involves the lowering of the range of uncertainties for individual phases, guaranteeing safe and optimal technical solutions. Eurocode 7 "Geotechnical design" creates a general frame of this risk identification and reduction approach. Earth structures are offering great opportunities for sustainability approach. Therefore, the possibilities how to decrease consumption of land (greenfields), energy and natural aggregates are at the centre of interest. In parallel to sustainability, the principles of availability and affordability for transport infrastructures are discussed. The main aim there is to eliminate the impact of interaction of the transport infrastructure with natural and man-made hazards, thus guaranteeing long-term functionality. This book will be of interest to specialists responsible for transport infrastructure planning, investors (project owners) of motorways and railways and environmental engineers. The main focus is on those responsible for geotechnical investigations, earth structures design and on contractors of such structures.
Soil represents the oldest and most-used building material, yet up to now the subject of earthen structures has not been fully addressed. This book describes the principles of soil as construction material including its treatment using geosynthetics and stabilization. The book focuses on the principles, logic of processes, understanding of the most important problems, so that all participants in the construction project can build earth structures more safely and economically.
Výbor ze studií literárního historika a editora Martina Machovce, které vznikaly v posledních dvou dekádách (2000–2018), představuje celou řadu faset uvažování o fenoménu undergroundu. V jednotlivých studiích se zabývá zejména undergroundovou literaturou z okruhu I. M. Jirouse a rockové skupiny The Plastic People of the Universe, ale věnuje pozornost i širším souvislostem této literatury – jejím předchůdcům z 50. let (okruh Egona Bondyho a Ivo Vodseďálka), roli ve společenství Charty 77, vazbám na angloamerické prostředí nebo hudebním a scénickým realizacím a způsobu, jakým byly tyto texty v samizdatu šířeny. In this collection of writings produced between 2000 and 2018, the pioneering literary historian of the Czech underground, Martin Machovec, examines the multifarious nature of the underground phenomenon. After devoting considerable attention to the circle surrounding the band The Plastic People of the Universe and their manager, the poet Ivan M. Jirous, Machovec turns outward to examine the broader concept of the underground, comparing the Czech incarnation not only with the movements of its Central and Eastern European neighbors, but also with those in the world at large. In one essay, he reflects on the so-called Půlnoc Editions, which published illegal texts in the darkest days of the late forties and early fifties. In other essays, Machovec examines the relationship between illegal texts published at home (samizdat) and those smuggled out to be published abroad (tamizdat), as well as the range of literature that can be classified as samizdat, drawing attention to movements frequently overlooked by literary critics. In his final, previously unpublished essay, Machovec examines Jirous’s “Report on the Third Czech Musical Revival” not as a merely historical document, but as literature itself.
Focusing on fundamental principles, Hydro-Environmental Analysis: Freshwater Environments presents in-depth information about freshwater environments and how they are influenced by regulation. It provides a holistic approach, exploring the factors that impact water quality and quantity, and the regulations, policy and management methods that are necessary to maintain this vital resource. It offers a historical viewpoint as well as an overview and foundation of the physical, chemical, and biological characteristics affecting the management of freshwater environments. The book concentrates on broad and general concepts, providing an interdisciplinary foundation. The author covers the methods of measurement and classification; chemical, physical, and biological characteristics; indicators of ecological health; and management and restoration. He also considers common indicators of environmental health; characteristics and operations of regulatory control structures; applicable laws and regulations; and restoration methods. The text delves into rivers and streams in the first half and lakes and reservoirs in the second half. Each section centers on the characteristics of those systems and methods of classification, and then moves on to discuss the physical, chemical, and biological characteristics of each. In the section on lakes and reservoirs, it examines the characteristics and operations of regulatory structures, and presents the methods commonly used to assess the environmental health or integrity of these water bodies. It also introduces considerations for restoration, and presents two unique aquatic environments: wetlands and reservoir tailwaters. Written from an engineering perspective, the book is an ideal introduction to the aquatic and limnological sciences for students of environmental science, as well as students of environmental engineering. It also serves as a reference for engineers and scientists involved in the management, regulation, or restoration of freshwater environments.
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