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Cover Art
PRINTED BOOKS
Author Johansen, John (Civil engineer)

Title Modern trends in tunnelling and blast design / by John Johansen in association with C.F. Mathiesen.

Published Rotterdam, Netherlands ; Brookfield. VT : A.A. Balkema, [2000]
©2000

Copies

Location Call No. Status
 UniM Store Engin  624.19 JOHA    AVAILABLE
Physical description viii, 154 pages : illustrations ; 25 cm
Bibliography Includes bibliographical references.
Contents 2.1 Tunnel portal and initial approach 2 -- 2.2 Tunnels 2 -- 3 Geology 5 -- 3.2 Tensile and compressive strength of the rock 5 -- 3.3 Density 5 -- 3.4 Seismic velocity 5 -- 3.5 Rock structure 6 -- 4 Drilling 10 -- 4.2 Required offset 10 -- 4.3 Types of cut 11 -- 4.4 Required drilling 20 -- 4.5 Drilling pattern 21 -- 5 Loading 23 -- 5.2 Loading with packaged explosives 23 -- 5.3 Loading with ANFO 23 -- 5.4 Loading of contour holes 24 -- 5.5 Suggested loading figures 24 -- 5.6 Emulsion explosives for tunnels 26 -- 6 Detonators--Firing Pattern 28 -- 6.2 Cut 28 -- 6.3 Production holes 30 -- 6.4 Contour 31 -- 6.5 Lifters 31 -- 6.6 Nonel LP in tunnel work 31 -- 7 Safety procedures 34 -- 7.2 Procedures for drilling, loading and blasting in tunnels 34 -- 7.3 Electric current leakage 37 -- 7.4 High voltage overhead wires and cables 38 -- 7.5 Radio energy 39 -- 7.6 Thunderstorms 40 -- 7.7 Static electricity 41 -- 8 Tunnel--Blast Design--Illustrations 42 -- 8.1 16 m[superscript 2] tunnel cross section--cartridged explosives 42 -- 8.2 30 m[superscript 2] tunnel cross section--cartridged explosives 43 -- 8.3 60 m[superscript 2] tunnel cross section--blasting with ANFO 44 -- 9 Tunnels and Tunnel Breakthrough Under Water 46 -- 9.2 Preliminary surveys 46 -- 9.3 Tunnel driving towards the breakthrough, test drilling 48 -- 9.4 Methods for improving rock stability 49 -- 9.5 Methods of breakthrough 51 -- 9.6 Breakthrough plug 54 -- 9.7 Drilling of the breakthrough plug 57 -- 9.8 Loading 58 -- 9.9 Explosives, detonators 59 -- 9.10 Stemming 59 -- 9.11 Hook up of detonators 59 -- 9.12 Shof firing cables 60 -- 9.13 Pressure--flush of stone masses 60 -- 10 Tunnel Boring Machines 65 -- 11 Controlled and Cautious Blasting 67 -- 11.1 Accuracy of drilling 67 -- 11.2 Contour 67 -- 11.3 Controlled blasting 67 -- 11.4 Blast vibration in general 68 -- 11.5 Level of vibration and control 70 -- Appendix 1. Principle sketch of underground chambers 75 -- Appendix 2. Drilling and loading (ANFO) equipment 76 -- Appendix 3. Loading with ANFO and Nonel detonators 77 -- Appendix 4. Equipment for pumpable emulsion explosives in tunnels (Site mixed slurry) 78 -- Appendix 5. Plug blasting--Lomi Hydropower Electric Power Plant 80 -- Appendix 6. Plug blasting--Tyee Lake Hydro Electric Power Plant 83 -- Appendix 7. Properties of extra strength dynamite, results of underwater testing 86 -- Appendix 8. Waterproof connecting of detonator leads--Scotchlok Connectors 87 -- Appendix 9. Waterproof connecting of detonator leads--Connecting sleeves 88 -- Appendix 10. Wooden concial dowel to keep the charge and stemming in place, suitable for 45-63 mm boreholes 89 -- Appendix 11. Blasting final plug 90 -- Appendix 12. Lake Rembesdal after draw down, depth 25 m, crossection 54 m[superscript 2], plug thickness 2,5-7 m, soil cover 3-5 m 91 -- Appendix 13. Kobbelv Hydro Plant--blasting final plug 92 -- Appendix 14. Oseberg transportation system--breakthrough to the sea 100 -- 1. Improvement of tunnel profile by means of electronic detonators / Rolf Konig 123 -- 2. Lundby Tunnel--Blasting technique for the next Millenium--Monitoring of vibrations / Goren Karlsson 131 -- 3. Intelligent tunnelventilation / Svein Haaland 137 -- 4. Bulk emulsion explosives in tunnelling / John Johansen, C. F. Mathiesen 147.
Summary A review of modern blasting techniques used in tunnelling, chamber excavations and lake-tap blasting. The scope of this book includes geological implications, cut design and smooth blasting techniques in addition to chamber blasting. This book also includes detailed examples outlining the design issues and techniques used in blasting lake-tap plugs for hydroelectric projects. It is designed as a reference book and companion to courses in tunnel blasting techniques.
Other author Mathiesen, C. F.
Subject Tunneling.
Blasting -- Technique.
ISBN 9058093115 (hardbound edition)
9058093123 (student edition)