精美简历封面3(图片格式).doc

Further titles in this series:
1. G. SANGLERAT
THE ROMETER AND SOIL EXPLORATION
2. Q. ZARUBA AND V. MENCL
LANDSLIDES AND THEIR CONTROL
3. EE. WAHLSTROM
TUNNELING IN ROCK
. SILVESTER
COASTAL ENGINEERING, I
Generation, Propagation and Influence of Waves
4B. R. SILVESTER
COASTAL ENGINEERING, II
Sedimentation, Estuaries, Tides, Effluents, Modelling
5. . . WARKENTIN
SOIL PROPERTIES AND BEHAVIOUR
. WAHLSTROM
DAMS, DAM FOUNDATIONS, AND RESERVOIR SITES
1. . CHEN
LIMIT ANALYSIS AND SOIL PLASTICITY
Developments in Geotechnical Engineering 8
ROCK DYNAMICS
AND GEOPHYSICAL
EXPLORATION
Introduction to Stress Waves in Rocks
by
LEIF N. PERSEN
Professor, Institutt for Mekanikk, Universitetet i Trondheim,
Trondheim, Norway
ELSEVIER SCIENTIFIC PANY
Amsterdam Oxford New York 1975
ELSEVIER SCIENTIFIC PANY
335 Jan van Galenstraat
. Box 211, Amsterdam, herlands
AMERICAN ELSEVIER PANY, INC.
52 Vanderbilt Avenue
New York, New York 10017
Library of Congress Card Number: 74-21865
ISBN 0-444-41284-0
Copyright © 1975 by Elsevier Scientific pany, Amsterdam
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical photocopying, recording, or
otherwise, without the prior written permission of the publisher,
Elsevier Scientific pany, Jan van Galenstraat 335, Amsterdam
Printed in herlands
FOREWORD
For centuries mountains and rock sites were seen merely as almost insurmount­
able obstacles to development. Even though mines have been known for centuries,
it is only a rather recent development to consider rock sites as being something
more than a mere inconvenience, and to use them for practical purposes such as
underground storage rooms, built-in hydro-power plants, etc. Our ability to use
rock sites for practical purposes is due to an ever-increasing technological