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Tuesday, August 11, 2020 | History

5 edition of Rock Stress and its Measurement found in the catalog.

Rock Stress and its Measurement

by B. Amadei

  • 399 Want to read
  • 16 Currently reading

Published by Chapman & Hall .
Written in English


The Physical Object
Number of Pages490
ID Numbers
Open LibraryOL7478680M
ISBN 100412447002
ISBN 109780412447006

Rock Stress and Its Measurement: Amadei, B., Stephansson, O.: Books - In Situ Stresses & Stress Measurement 2 of 64 Erik Eberhardt – UBC Geological Engineering EOSC () Why Study Stress? Stress is a concept which is fundamental to rock mechanics principles and applications. There are three basic reasons to understand stress in the context of engineering rock File Size: 2MB.

  Because of its importance in effective stress fluid pressure measurement is essential, as is a measurement of Biot’s coefficients. Where a fractured rock mass exists there is a need to understand the normal stress across these fractures, what the fluid pressure is within them, and how much of the fracture area fluid pressure operates on. Sigra undertakes rock stress measurement in boreholes using its IST overcore system, which is suitable for holes up to m depth. It also undertakes hydrofracturing for stress measurement and analyses borehole breakout data. As fluid pressure is a component of effective stress, Sigra has a number of techniques for measuring fluid pressure in.

Thus a thick cylindrical rock is formed, which is detached from the rock mass and is free of stress. If the rock was under initial compression, there would be enlargement of diameter, which is measured with the help of deformation gauge. From this deformation values we can calculate the Insitu stresses in : Sadanandam Anupoju. In-Situ Rock Stress: Measurement, Interpretation and Application reflect the development in this field, covering measuring techniques, interpretation methods, and application of the in-situ stress in engineering practice. Estimate of the in-situ rock stress state can be realized by direct or .


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Rock Stress and its Measurement by B. Amadei Download PDF EPUB FB2

Rock Stress and Its Measurement th Edition by B. Amadei (Author), O. Stephansson (Author) ISBN Cited by: About this book. 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. Rock Stress and Its Measurement. 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 5/5(1). Rock masses are initially stressed in their current in situ state of stress and to a lesser natural state.

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.

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. Rock Stress and Its Measurement by B. Amadei,available at Book Depository with free delivery worldwide.

New theories have been proposed regarding their origin and various techniques have been developed to measure in-situ stresses.\/span>\"@ en\/a> ; \u00A0\u00A0\u00A0\n schema:description\/a> \" 1 Introduction -- Stress at a point -- Importance of rock stress -- History -- Classification of rock stresses -- Content of the book.

Rock Stress and Its Measurement 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. 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. Abstract. Compared with other rock mass properties, rock stress is a difficult quantity to measure.

As pointed out by Leeman (), ‘It is impossible to measure stress. Stress Measurements Stress Measurements Stress Measurements Stress Measurements Mines and Confined Access Drilling Agapito Associates, Inc.

(AAI) provides services for measuring in-situ horizontal stresses using an innovative down-hole measurement technique, developed by Sigra Pty, Ltd. of Australia, that represents the most advanced biaxial. Rock Mechanics –. Response of Rocks to Applied Loads.

CE/SC / Planet Earth Hydraulic Conductivity, K (cm/s, m/s) - measure of the ability of a rock or soil to transmit water • K = k*[(ρg)/µ] k = intrinsic permeability When rock mass undergoes stress, it will preferentially fail. ROCK STRESS AND ITS MEASUREMENT Bernard Amadei Importance of rock stress 3 History 11 Classification of rock stresses 12 Content of the book 14 General observations 16 References 17 Conferences and workshops on in situ stresses 20 Major sessions in conferences The Underground Research Laboratory (URL) of the Atomic Energy of Canada (AECL) has been selected as a case study for rock stresses – as it represents one of the most comprehensive and best-documented sites for rock stress measurement and its interpretation.

A large body of data on the state of stress in the near surface of the Earth's crust (upper km of the crust) is now available. New theories have been proposed regarding their origin and various techniques have been developed to measure in-situ stresses.

Rock Stress and Its Measurement Bernard Amadei, Ove Stephansson (auth.) Rock masses are initially stressed in their current in situ state of stress and to a lesser natural state. 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 Author: Bernard Amadei. number of publications deaiing with the subject This book is directed toward graduate of rock stress and its measurement.

The research students, teachers and practitioners in civil, program conducted at the Underground \_- mining and petroleum engineering, geology Research Laboratory (URL) in Canada and the and geophysics. 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. and thein situ stress usually prohibits reliable estimation of rock stress. In addition, stress cannot be measured directlyand therefore rock stress determination techniques rely on the measurement of some responseviz; displacement, strain, deformation etc i.e.

induced by a disturbance of the Size: 1MB. In-situ Stress Measurement and its Engineering Application in Deep Coal Mines: A Case Study in the Xinji Coalfield of China Liu Qinjie1,*, the tested rock mass during in-situ stress measurement [15].

In addition, strain changes were obtained using a high-precision strain device. Subsequently, the in-situ stress File Size: 3MB.The Measurement and Estimation of Basic Rock Strength 20 49 (b) 10 (0) 15 5 Z ¥ ~ 5 o Diameter 2 (nm2) Diameter 2 (mm2) Figure 10 Load versus diameter 2 graphs for tests on Darley Dale sandstone (data derived from Broch and Franklin [8]): (a) normal scales, (b) log-log graph The standard size and type of Cited by: : Rock Stress and Its Measurement () by Amadei, B.; Stephansson, O.

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