Rock Blasting

About this eBook

Author

André, George G. (George Guillaume)

Title

Rock Blasting A Practical Treatise on the Means Employed in Blasting Rocks for Industrial Purposes

Credits

Produced by Chris Curnow, Harry Lamé and the Online Distributed Proofreading Team at www.pgdp.net (This file was produced from images generously made available by The Internet Archive)

Language

English

LoC Class

TN: Technology: Mining engineering, Metallurgy

Subject

Blasting

Category

Text

Project Gutenberg

eBook-No. 55051

Release Date

July 5, 2017

Copyright

Public domain in the USA.

Contents

1. 1.ROCK BLASTING.
2. 2.PREFACE.
3. 3.CONTENTS.
4. 4.CHAPTER I. THE TOOLS, MACHINES, AND OTHER APPLIANCES USED IN BLASTING ROCKS. — Section I.—Hand Boring. — Drills. — Hammers. — Auxiliary Tools. — Sets of Blasting Gear. — Section II.—Machine Boring. — Machine Rock-Drills. — The Darlington Drill. — Borer-Bits. — Rock-Drill Supports. — The Stretcher Bar. — The Dubois-François Carriage. — Section III.—Appliances for Firing Blasting Charges. — Safety Fuse. — Electric Fuses. — Cables. — Detonators. — Firing Machines and Batteries.
5. 5.CHAPTER II. EXPLOSIVE AGENTS USED IN BLASTING ROCKS. — Section I.—Phenomena accompanying an Explosion. — Nature of an Explosion. — Measure of Heat, and specific Heat. — Heat liberated by an Explosion. — Gases generated by an Explosion. — Force developed by an Explosion. — Section II.—Nature of Explosive Agents. — Mechanical Mixtures. — Chemical Compounds. — Section III.—Relative Strength of the Common Explosive Agents. — Force developed by Gunpowder. — Relative Force developed by Gunpowder, Gun-cotton, and Nitro-glycerine. — Section IV.—Means of Firing the Common Explosive Agents. — Action of Heat. — Detonation. — Section V.—Some Properties of the Common Explosive Agents. — Gunpowder. — Gun-cotton. — Dynamite. — Firing Points of the Common Explosive Compounds. — Section VI.—Some Varieties of the Nitro-cellulose and the Nitro-glycerine Compounds. — Nitrated Gun-cotton. — Cotton Powder, or Tonite. — Schultze’s Powder. — Lithofracteur. — Brain’s Powder. — Cellulose Dynamite.
6. 6.CHAPTER III. The Principles of Rock Blasting. — Line of Least Resistance. — Force required to cause Disruption. — Conditions of Disruption. — Example of a Heading. — Economical Considerations. — Tamping.
7. 7.CHAPTER IV. THE OPERATIONS OF ROCK BLASTING. — Hand Boring. — Boring the Shot-holes. — Charging the Shot-holes. — Firing the Charges. — Machine Boring. — Boring the Shot-holes. — Charging and Firing. — Removing the dislodged Rock. — Division of Labour. — Examples of Drivings. — The St. Gothard Tunnel. — The Hoosac Tunnel. — The Musconetcong Tunnel.
8. 8.CHAPTER VI. SUBAQUEOUS BLASTING. — Preparation of the Charge. — Boring under Water. — Submarine Rocks. — Obstructions in Water-courses.
9. 9.INDEX.
10. 10.Transcriber’s Notes

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