Author: L.S. Srivastava Publisher: ISBN: Category : Geology Languages : en Pages : 27
Book Description
The paper describes an analytical method of determining the stability of rock slopes with geo-mechanical discontinuities. The method consist of (I) collection and analysis of the geological date demarcate the probable failure planes controlled by the various discontinuity surfaces, (ii) calculation of the normal and shear forces acting on the failure planes, and (iii) the evaluation of the shearing resistance from the laboratory or the field tests. An example of calculation of factor of safety in a quartrite rock slope has been given.
Author: Jian Zhao Publisher: Elsevier ISBN: 9780080541631 Category : Science Languages : en Pages : 308
Book Description
Provides practical solutions to the challenge of modeling and analyzing rock masses Consolidates a wealth of previously published technical papers on the subject and introduces previously unseen material This authoritative title is a key reference for any Geo-engineer. Rock masses differ considerably from man-made materials, and their properties can vary with location, direction and time. As a result there is a critical need to capture these variations via modeling and analysis. Zhu and Zhao provide an expert introduction to the techniques and analytical methods needed for studying underground excavations in fractured rock masses. The book brings together previously published and new material to provide a comprehensive and up-to-date reference. Provides practical solutions to the challenge of modeling and analyzing rock masses Consolidates a wealth of previously published technical papers on the subject and introduces previously unseen material
Author: C. N. V. Satyanarayana Reddy Publisher: Springer Nature ISBN: 9811656010 Category : Science Languages : en Pages : 366
Book Description
This book comprises select proceedings of the Indian Geotechnical Conference 2020 (IGC2020) focusing on recent developments in the field of transportation geotechnics, scour and erosion, offshore geotechnics, and environmental geotechnology. The contents are useful to academicians, researchers, practitioners and policymakers to understand and tackle the challenges in an efficient manner and to adopt appropriate sustainable geotechnical engineering solutions.
Author: Yan Xing Publisher: CRC Press ISBN: 1000697975 Category : Technology & Engineering Languages : en Pages : 196
Book Description
Stability of underground excavations is of great importance to an operating mine because it ensures the safety of the working people and operating equipment, and successful ore production. Due to the complex geological conditions and mine constructions, and variability and uncertainty in estimating rock mass mechanical properties, the assessment of rock mass stability for an underground mine is extremely challenging and difficult. Tackling of this difficult problem is not covered in detail in any of the textbooks currently available in the rock mechanics literature. This monograph aims to cover this gap in the rock mechanics and rock engineering field. This monograph provides detailed procedures for the stability assessment and support design for an underground mine case study. It covers the background of the mine site including the monitored deformation data, the state-of-art methodologies for the stability analysis of rock masses around underground excavations, performed laboratory tests, estimation of the rock mass properties, a brief theory and background of the 3-D Distinct Element Code (3DEC), and numerical modeling of underground rock mass stability including investigation of the effectiveness of rock supports. The monograph is an excellent reference for the senior undergraduates, graduate students, researchers and practitioners who work in the Underground Rock Mechanics and Rock Engineering area in the Mining Engineering, Civil Geotechnical Engineering and DEM (Distinct Element Method) Numerical modeling.
Author: L. Müller-Salzburg Publisher: Springer ISBN: 9783211812518 Category : Science Languages : de Pages : 180
Book Description
Die folgenden Ausfiihrungen behandeln die Absehatzung der Seitendruek ziffer A fiir den Orange-Fish-Tunnel in Siidafrika. 3 Der Tunnel solI eine Wassermenge von 50 m /see vom Verwoerd-Stausee des Orange-River in das Gebiet des grofSen Fish-River bringen, urn dieses zu bewassern. Die Gesamtlange des Tunnels betragt etwa 85 km, der Ausbruehsdureh messer 6 m. Der Orange-Fish-Tunnel dureh6rtert eine im geologischen Sinne ruhige Landschaft. Er liegt im Karroo-Becken, welches von Sedimenten, vorwiegend Sandsteinen, Sehluffsteinen und Steinmergeln gefii11t ist. Die Ablagerungen sind dureh einen haufigen Weehsel dieser Gesteins arten sowohl in horizontaler wie in vertikaler Erstreckung gekennzeiehnet und werden von Dolerit-Intrusionen durehadert. Der Tunnel wird von mehreren Orten zugleieh vorgetrieben. Yom Ein lafSbauwerk aus, von sieben Zugangssehaehten und vom AuslafSbauwerk aus. Es war vorgesehen, den Tunnel mit einem rasehen Vortrieb aufzufahren. Ober weite Strecken (etwa 85 %) des Tunnels war eine geringfiigige, provi sorische Sicherung durch Anker sowie eine endgiiltige Betonauskleidung von etwa 23 em Dicke vorgesehen (diese fiir die ganze Tunnellange). Beim Tunnelvortrieb sind jedoeh unerwartete Sehwierigkeiten aufgetre ten, und auch in der betonierten endgiiltigen Auskleidung stellten sich Risse ein, die nicht erwartet worden waren. 2. Abschatzung der Seitendruckziffer aus der Geologischen Vorgeschichte Yom Kenntnisstand des Untertagebaues zum Zeitpunkt der Projektierung des Orange-Fish-Tunnel ausgehend ist zu sagen, dafS in etwa mit A-Werten im Bereich von 0,25 bis 1,2 zu rechnen war.
Author: Evert Hoek Publisher: CRC Press ISBN: 0419160108 Category : Technology & Engineering Languages : en Pages : 366
Book Description
This classic handbook deals with the geotechnical problems of rock slope design. It has been written for the non-specialist mining or civil engineer, with worked examples, design charts, coverage of more detailed analytical methods, and of the collection and interpretation of geological and groundwater information and tests for the mechanical properties of rock.
Author: L.S. Srivastava
Author: Austrian Society for Geomechanics Staff
Author: Jian Zhao
Author: C. N. V. Satyanarayana Reddy
Author: Yan Xing
Author: Österreichische Gesellschaft für Geomechanik![Stability of Rock Slopes and Underground Excavations. Contributions to the Josef-Stini-Colloquium (18. Geomechanical Colloquium) of the Austrian Society for Geomechanics, [Salzburg 1968] PDF](https://books.google.com/books/content/images/frontcover/JGiTXwAACAAJ?fife=w80-h100)
Author: L. Müller
Author: L. Müller-Salzburg
Author: Evert Hoek
Author: L. Müller