The Delft Sand, Clay and Rock Cutting Model

The Delft Sand, Clay and Rock Cutting Model
Author: S.A. Miedema
Publisher: IOS Press
Total Pages: 572
Release: 2014-10-29
Genre: Technology & Engineering
ISBN: 1614994544

Sand, clay and rock have to be excavated for a variety of purposes, such as dredging, trenching, mining (including deep sea mining), drilling, tunnel boring and many other applications. Many excavations take place on dry land, but they are also frequently required in completely saturated conditions, and the methods necessary to accomplish them consequently vary widely. This book provides an overview of cutting theories. It begins with a generic model, valid for all types of soil (sand, clay and rock), and continues with the specifics of dry sand, water-saturated sand, clay, atmospheric rock and hyperbaric rock. Small blade angles and large blade angles are discussed for each soil type, and for each case considered the equations/model for cutting forces, power and specific energy are given. With models verified by laboratory research, principally from the Delft University of Technology, and data from other recognized sources, this book will prove an invaluable reference for anybody whose work involves major excavations of any kind.

Production at the Leading Edge of Technology

Production at the Leading Edge of Technology
Author: Bernd-Arno Behrens
Publisher: Springer Nature
Total Pages: 693
Release: 2021-09-04
Genre: Technology & Engineering
ISBN: 303078424X

This congress proceedings provides recent research on leading-edge manufacturing processes. The aim of this scientific congress is to work out diverse individual solutions of "production at the leading edge of technology" and transferable methodological approaches. In addition, guest speakers with different backgrounds will give the congress participants food for thoughts, interpretations, views and suggestions. The manufacturing industry is currently undergoing a profound structural change, which on the one hand produces innovative solutions through the use of high-performance communication and information technology, and on the other hand is driven by new requirements for goods, especially in the mobility and energy sector. With the social discourse on how we should live and act primarily according to guidelines of sustainability, structural change is gaining increasing dynamic. It is essential to translate politically specified sustainability goals into socially accepted and marketable technical solutions. Production research is meeting this challenge and will make important contributions and provide innovative solutions from different perspectives.

Wear of Rock Cutting Tools

Wear of Rock Cutting Tools
Author: P.N.W. Verhoef
Publisher: Routledge
Total Pages: 302
Release: 2017-11-22
Genre: Technology & Engineering
ISBN: 1351404652

This text deals with the dredging of rock by large cutter suction dredgers. The rock properties influencing the mechanical cutting of rock and the wear of cutting teeth are examined, and to verify the model of mechanical rock excavation developed, case studies of dredging projects were performed.

The World in a Grain

The World in a Grain
Author: Vince Beiser
Publisher: Penguin
Total Pages: 306
Release: 2019-08-06
Genre: Science
ISBN: 0399576444

A finalist for the PEN/E. O. Wilson Literary Science Writing Award The gripping story of the most important overlooked commodity in the world--sand--and the crucial role it plays in our lives. After water and air, sand is the natural resource that we consume more than any other--even more than oil. Every concrete building and paved road on Earth, every computer screen and silicon chip, is made from sand. From Egypt's pyramids to the Hubble telescope, from the world's tallest skyscraper to the sidewalk below it, from Chartres' stained-glass windows to your iPhone, sand shelters us, empowers us, engages us, and inspires us. It's the ingredient that makes possible our cities, our science, our lives--and our future. And, incredibly, we're running out of it. The World in a Grain is the compelling true story of the hugely important and diminishing natural resource that grows more essential every day, and of the people who mine it, sell it, build with it--and sometimes, even kill for it. It's also a provocative examination of the serious human and environmental costs incurred by our dependence on sand, which has received little public attention. Not all sand is created equal: Some of the easiest sand to get to is the least useful. Award-winning journalist Vince Beiser delves deep into this world, taking readers on a journey across the globe, from the United States to remote corners of India, China, and Dubai to explain why sand is so crucial to modern life. Along the way, readers encounter world-changing innovators, island-building entrepreneurs, desert fighters, and murderous sand pirates. The result is an entertaining and eye-opening work, one that is both unexpected and involving, rippling with fascinating detail and filled with surprising characters.

Recent Developments of Soil Mechanics and Geotechnics in Theory and Practice

Recent Developments of Soil Mechanics and Geotechnics in Theory and Practice
Author: Theodoros Triantafyllidis
Publisher: Springer Nature
Total Pages: 410
Release: 2019-08-20
Genre: Science
ISBN: 3030285162

This book provides essential insights into recent developments in fundamental geotechnical engineering research. Special emphasis is given to a new family of constitutive soil description methods, which take into account the recent loading history and the dilatancy effects. Particular attention is also paid to the numerical implementation of multi-phase material under dynamic loads, and to geotechnical installation processes. In turn, the book addresses implementation problems concerning large deformations in soils during piling operations or densification processes, and discusses the limitations of the respective methods. Numerical simulations of dynamic consolidation processes are presented in slope stability analysis under seismic excitation. Lastly, achieving the energy transition from conventional to renewable sources will call for geotechnical expertise. Consequently, the book explores and analyzes a selection of interesting problems involving the stability and serviceability of supporting structures, and provides new solutions approaches for practitioners and scientists in geotechnical engineering. The content reflects the outcomes of the Colloquium on Geotechnical Engineering 2019 (Geotechnik Kolloquium), held in Karlsruhe, Germany in September 2019.

Digital Terrain Modeling

Digital Terrain Modeling
Author: Zhilin Li
Publisher: CRC Press
Total Pages: 337
Release: 2004-11-29
Genre: Technology & Engineering
ISBN: 0203486749

Written by experts, Digital Terrain Modeling: Principles and Methodology provides comprehensive coverage of recent developments in the field. The topics include terrain analysis, sampling strategy, acquisition methodology, surface modeling principles, triangulation algorithms, interpolation techniques, on-line and off-line quality control in data a

Wear of Rock Cutting Tools

Wear of Rock Cutting Tools
Author: P.N.W. Verhoef
Publisher: Routledge
Total Pages: 340
Release: 2017-11-22
Genre: Technology & Engineering
ISBN: 1351404660

This text deals with the dredging of rock by large cutter suction dredgers. The rock properties influencing the mechanical cutting of rock and the wear of cutting teeth are examined, and to verify the model of mechanical rock excavation developed, case studies of dredging projects were performed.

Hydraulic Engineering V

Hydraulic Engineering V
Author: Guojun Hong
Publisher: CRC Press
Total Pages: 358
Release: 2017-12-06
Genre: Technology & Engineering
ISBN: 1351241559

Hydraulic research is developing beyond traditional civil engineering to satisfy increasing demands in natural hazards, structural safety assessment and environmental research. Hydraulic Engineering V contains 40 technical papers from the 5th International Technical Conference on Hydraulic Engineering (CHE 2017), held in Shanghai (China) 15—17 December 2017. The conference served as a major forum to promote technological progress and activities, technical transfer and cooperation, and opportunities for engineers and researchers to maintain and improve scientific and technical competence in the field of hydraulic engineering, environment and safety engineering, and other related fields. The selected papers mainly focus on theory and technologies related to hydraulic engineering, ecological structures in hydraulic engineering, stability and risk of hydraulic structures, estuary improvement and shoreline restoration, river engineering and sediment transport, dredging technology and equipment, flood hazards and innovative control measures, complex flow modelling, environmental hydraulics and hydrology, water purification, wastewater treatment, and geotechnical aspects in hydraulic engineering. Hydraulic Engineering V will be of interest to academics and engineers involved in Hydraulic Engineering and Environmental Engineering.

Hydraulic Fill Manual

Hydraulic Fill Manual
Author: Jan van 't Hoff
Publisher: CRC Press
Total Pages: 674
Release: 2012-12-18
Genre: Science
ISBN: 0415698448

Without proper hydraulic fill and suitable specialised equipment, many major infrastructure projects such as ports, airports, roads, industrial or housing projects could not be realised. Yet comprehensive information about hydraulic fill is difficult to find. This thoroughly researched book, written by noted experts, takes the reader step-by-step through the complex development of a hydraulic fill project. Up-to-date and in-depth, this manual will enable the client and his consultant to understand and properly plan a reclamation project. It provides adequate guidelines for design and quality control and allows the contractor to work within known and generally accepted guidelines and reasonable specifications. The ultimate goal is to create better-designed, more adequately specified and less costly hydraulic fill projects. The Hydraulic Fill Manual covers a range of topics such as: • The development cycle of a hydraulic fill project • How technical data are acquired and applied • The construction methods applicable to a wide variety of equipment and soil conditions, the capabilities of dredging equipment and the techniques of soil improvement • How to assess the potentials of a borrow pit • Essential environment assessment issues • The design of the hydraulic fill mass, including the boundary conditions for the design, effects of the design on its surroundings, the strength and stiffness of the fill mass, density, sensitivity to liquefaction, design considerations for special fill material such as silts, clays and carbonate sands, problematic subsoils and natural hazards • Quality control and monitoring of the fill mass and its behaviour after construction. This manual is of particular interest to clients, consultants, planning and consenting authorities, environmental advisors, contractors and civil, geotechnical, hydraulic and coastal engineers involved in dredging and land reclamation projects.