surface and underground excavations methods techniques and equipment

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Surface And Underground Excavations 2nd Edition

Author : Ratan Raj Tatiya
ISBN : 9780203440940
Genre : Technology & Engineering
File Size : 50. 47 MB
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Surface and Underground Excavations – Methods, Techniques and Equipment (2nd edition) covers the latest technologies and developments in the excavation arena at any locale: surface or underground. In the first few chapters, unit operations are discussed and subsequently, excavation techniques are described for various operations: tunnelling, drifting, raising, sinking, stoping, quarrying, surface mining, liquidation and mass blasting as well as construction of large subsurface excavations such as caverns and underground chambers. The design, planning and development of excavations are treated in a separate chapter. Especially featured are methodologies to select stoping methods through incremental analysis. Furthermore, this edition encompasses comprehensive sections on mining at ‘ultra depths’, mining difficult deposits using non-conventional technologies, mineral inventory evaluation (ore – reserves estimation) and mine closure. Concerns over Occupational Health and Safety (OHS), environment and loss prevention, and sustainable development are also addressed in advocating a solution to succeed within a scenario of global competition and recession. This expanded second edition has been wholly revised, brought fully up-to-date and includes (wherever feasible) the latest trends and best practices, case studies, global surveys and toolkits as well as questions at the end of each chapter. This volume will now be even more appealing to students in earth sciences, geology, and in civil, mining and construction engineering, to practicing engineers and professionals in these disciplines as well as to all with a general or professional interest in surface and underground excavations.

Maschineller Tunnelbau Im Schildvortrieb

Author : Bernhard Maidl
ISBN : 9783433603017
Genre : Technology & Engineering
File Size : 46. 67 MB
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Das Buch stellt den neuesten Stand der Technik des maschinellen Schildvortriebes und die unterschiedlichen Maschinenarten vor und gibt Berechnungsans?tze und Konstruktionshinweise. Weitere Kapitel befassen sich mit den Abbauwerkzeugen, den F?rdereinrichtungen, der Tunnelsicherung, der Vermessung und Steuerung sowie der Arbeitssicherheit. Ferner wird ausf?hrlich auf die vertraglichen Aspekte und das Prozess-Controlling eingegangen.

De Re Metallica Libri Xii

Author : Georg Agricola
ISBN : 3865390978
Genre :
File Size : 68. 23 MB
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Theory And Technology Of Rock Excavation For Civil Engineering

Author : Dingxiang Zou
ISBN : 9789811019890
Genre : Science
File Size : 33. 46 MB
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This book summarizes the technical advances in recent decades and the various theories on rock excavation raised by scholars from different countries, including China and Russia. It not only focuses on rock blasting but also illustrates a number of non-blasting methods, such as mechanical excavation in detail. The book consists of 3 parts: Basic Knowledge, Surface Excavation and Underground Excavation. It presents a variety of technical methods and data from diverse sources in the book, making it a valuable theoretical and practical reference resource for engineers, researchers and postgraduates alike.

Anklage

Author : John Grisham
ISBN : 9783641164690
Genre : Fiction
File Size : 30. 48 MB
Format : PDF, Kindle
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Jedes Unrecht hat seinen Preis Als New Yorker Anwältin hat es Samantha Kofer binnen weniger Jahre zu Erfolg gebracht. Mit der Finanzkrise ändert sich alles. Samantha wird gefeuert. Doch für ein Jahr Pro-Bono-Engagement bekommt sie ihren Job zurück. Samantha geht nach Brady, Virginia, einem 2000-Seelen-Ort, der sie vor große Herausforderungen stellt. Denn anders als ihre New Yorker Klienten, denen es um Macht und Geld ging, kämpfen die Einwohner Bradys um ihr Leben. Ein Kampf, den Samantha bald zu ihrem eigenen macht und der sie das Leben kosten könnte. Samantha Kofer, ambitionierte Anwältin bei einer der größten Kanzleien in New York, wird kurz nach dem Untergang der US-Investmentbank Lehman Brothers von ihrem Job freigestellt. Im Gegensatz zu vielen ihrer Kollegen, die von einem auf den anderen Tag auf der Straße stehen, bietet man ihr einen Deal an: Wenn sie für ein Jahr ohne Gehalt bei einer Non-Profit-Organisation arbeitet, behält sie ihren Job. So verschlägt es Samantha nach Brady, einem kleinen Ort in den Bergen Virginias, wo sie bei einer Beratungsstelle für kostenlosen Rechtsbeistand anheuert. Anfangs noch etwas unbeholfen in der ungewohnten Umgebung, entwickelt Samantha bald ein Gespür für die Nöte der Einwohner Bradys. Menschen, die auf den umliegenden Kohlefeldern jahrelang Schwerstarbeit geleistet haben und nun, ausgebrannt oder erkrankt, von den Kohleunternehmen im Stich gelassen werden. Der tragische Fall eines Arbeiters, der von Elend und Krankheit so gezeichnet ist, dass ihm nur noch wenige Monate zu leben bleiben, lässt Samantha schließlich über sich hinauswachsen. Gemeinsam mit einem befreundeten Anwalt nimmt sie den Kampf gegen die Kohlemagnaten auf und schreckt auch dann nicht zurück, als ihr Leben akut bedroht wird.

Licht Am Ende Des Tunnels

Author : Klaus Grewe
ISBN : 3805324928
Genre : Technology & Engineering
File Size : 26. 19 MB
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Civil Excavations And Tunnelling

Author : Ratan Tatiya
ISBN : 0727733400
Genre : Technology & Engineering
File Size : 27. 41 MB
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"Civil excavations and tunnelling provides comprehensive coverage of civil excavations at surface and subsurface locales, including tunnels created with or without the aid of explosives using the latest methods, equipment and techniques, and with due consideration to safety and the environment." "Excavation is a multi-disciplined activity involving civil, construction and mining engineers, earth-scientists and geologists. The book will appeal to practitioners, researchers and students of these disciplines."--BOOK JACKET.

The Urban Rail Development Handbook

Author : Daniel Pulido
ISBN : 9781464812736
Genre : Business & Economics
File Size : 31. 81 MB
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Cities across the globe are looking to develop affordable, environmentally friendly, and socially responsible transportation solutions that can meet the accessibility needs of expanding metropolitan populations and support future economic and urban development. When appropriately planned and properly implemented as part of a larger public transportation network, urban rail systems can provide rapid mobility and vital access to city centers from surrounding districts. High-performing urban rail services, when carefully approached as development projects, can help enhance quality of life by giving citizens access to employment opportunities, essential services, urban amenities, and neighboring communities. The purpose of this Handbook is to synthesize and disseminate knowledge to inform the planning, implementation, and operations of urban rail projects with a view towards: -- Emphasizing the need for early studies and project planning; -- Making projects more sustainable (economically, socially, and environmentally); -- Improving socioeconomic returns and access to opportunities for users; -- Maximizing the value of private participation, where appropriate; and -- Building capacity within project implementing and managing institutions This Handbook provides experiential advice to tackle the technical, institutional, and financial challenges faced by decision makers considering urban rail projects. It brings together the expertise of World Bank staff and the input of numerous specialists to synthesize international 'good practices' and recommendations that are independent of commercial, financial political, or other interests. The material presented is intended as an honest-broker guide to maximize the impact and manage the challenges of urban rail systems in cities in both developed and developing countries. Rather than identify a single approach, this Handbook acknowledges the complexities and context necessary when approaching an urban rail development by helping to prepare decision makers to ask the right questions, consider the key issues, perform the necessary studies, apply adequate tools, and learn from international good practice all at the right time in the project development process.

Support Of Underground Excavations In Hard Rock

Author : E. Hoek
ISBN : 9054101865
Genre : Technology & Engineering
File Size : 34. 73 MB
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The safe and economical construction of tunnels, mines, and other subterranean works depends on the correct choice of support systems to ensure that the excavations are stable. These support systems should be matched to the characterstics of the rock mass and the excavation techniques adopted. Establishing the support requirements, designing support systems and installing these correctly are essential elements in safe underground construction. This is a comprehensive and practical work which also gives access to user-friendly computer programmes which enable the investigation and design of support techniques. Details on how to obtain this software are also included in the book.

Rock Stress And Its Measurement

Author : B. Amadei
ISBN : 0412447002
Genre : Science
File Size : 66. 28 MB
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Rock masses are initially stressed in their current in situ state of stress and to a lesser natural state. Whether one is interested in the extent on the monitoring of stress change. formation of geological structures (folds, faults, The subject of paleostresses is only briefly intrusions, etc. ), the stability of artificial struc discussed. tures (tunnels, caverns, mines, surface excava The last 30 years have seen a major advance our knowledge and understanding of rock tions, etc. ), or the stability of boreholes, a in the in situ or virgin stress field, stress. A large body of data is now available on knowledge of along with other rock mass properties, is the state of stress in the near surface of the needed in order to predict the response of rock Earth's crust (upper 3-4km of the crust). masses to the disturbance associated with those Various theories have been proposed regarding structures. Stress in rock is usually described the origin of in situ stresses and how gravity, within the context of continuum mechanics. It is tectonics, erosion, lateral straining, rock fabric, defined at a point and is represented by a glaciation and deglaciation, topography, curva second-order Cartesian tensor with six compo ture of the Earth and other active geological nents. Because of its definition, rock stress is an features and processes contribute to the current enigmatic and fictitious quantity creating chal in situ stress field.

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