Tunneling in Rock by Drilling and Blasting

Examples of work conducted throughout the world including the Indian sub-continent, Australia, and Sweden amongst others are discussed. These tunnel projects serve to illustrate the challenges and i

Author: Alex Spathis

Publisher: CRC Press

ISBN: 020338749X

Category: Technology & Engineering

Page: 132

View: 727

Tunnelling in Rock by Drilling and Blasting presents the latest developments in the excavation of tunnels using the drilling and blasting method. Examples of work conducted throughout the world including the Indian sub-continent, Australia, and Sweden amongst others are discussed. These tunnel projects serve to illustrate the challenges and i

Drilling and Blasting of Rocks

CHAPTER 22 Blasting for tunnels and drifts AROA Fig . 21.1 . Systems for advance in tunnel. 22.1 INTRODUCTION The use of the underground , for mining as well as for civil engineering projects , requires the driving of drifts and tunnels ...

Author: E. Lopez Jimeno

Publisher: CRC Press

ISBN: 9789054101994

Category: Technology & Engineering

Page: 400

View: 685

Rock breakage with explosives has existed since the seventeenth century when black powder came into use in mining. Since then it has progressed from the invention of dynamite to the use of heavy ANFO. During the past two decades, there have been numerous technical contributions which have brought a better understanding of rock fragmentation with explosives, an improvement in drilling equipment and a noticeable evolution in the development of new explosives and blasting accessories. The Geomining Technological Institute of Spain (ITCE), aware of this progress and of the importance which the breakage process has acquired in mining and civil engineering projects, has ordered the publication of Drilling and Blasting of Rocks. The purpose of this Handbook is to give basic knowledge of the drilling systems, the types of available explosives and the accessories and the parameters that intervene in blast designing, whether controllable or not; at the same time the objectives and contents contribute to improved safety in mining. The Handbook is meant for all professionals who are involved with explosives in mining operations and civil engineering projects, as well as for students of technical schools.

Modern Trends in Tunnelling and Blast Design

Blasting as close as possible to the pre - fixed profile is an ever increasing requirement – likewise with respect to the quality of the remaining rock . Accurate drilling of the contour holes is important in ...

Author: John Johansen

Publisher: CRC Press

ISBN: 9789058093110

Category: Technology & Engineering

Page: 182

View: 641

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.

Rock Blasting and Explosives Engineering

Indirect costs The results of a detailed sample calculation of these four factors are given in Tables 2.2 to 2.6 for each of four simple tunnels, covering the four combinations of mechanical boring (6.2 m^) and drill-blast tunneling ...

Author: Per-Anders Persson

Publisher: CRC Press

ISBN: 135141822X

Category: Technology & Engineering

Page: 560

View: 733

Rock Blasting and Explosives Engineering covers the practical engineering aspects of many different kinds of rock blasting. It includes a thorough analysis of the cost of the entire process of tunneling by drilling and blasting in comparison with full-face boring. Also covered are the fundamental sciences of rock mass and material strength, the thermal decomposition, burning, shock initiation, and detonation behavior of commercial and military explosives, and systems for charging explosives into drillholes. Functional descriptions of all current detonators and initiation systems are provided. The book includes chapters on flyrock, toxic fumes, the safety of explosives, and even explosives applied in metal working as a fine art. Fundamental in its approach, the text is based on the practical industrial experience of its authors. It is supported by an abundance of tables, diagrams, and figures. This combined textbook and handbook provides students, practitioners, and researchers in mining, mechanical, building construction, geological, and petroleum engineering with a source from which to gain a thorough understanding of the constructive use of explosives.

Tunnels and Underground Structures Proceedings Tunnels Underground Structures Singapore 2000

For instance one would drill - and - blast the most problematic ground , if early access was feasible , while waiting for TBM delivery . A hybrid solution was used at the 18 km long Qinling Tunnel in China , and is also planned in ...

Author: J. Zhao

Publisher: CRC Press

ISBN: 9789058091710

Category: Technology & Engineering

Page: 696

View: 866

This text describes topics discussed at the conference, including: tunnelling and construction in soft ground and rocks; geological investigations; tunnelling machines; planning for underground infrastructure; safety issues and environmental and social aspects of underground development.

Tunnelling in Weak Rocks

3rd International Symposium on Rock Fragmentation by Blasting, Brisbane, 26-31 Aug., 303-309. Rustan, A. (1998). Rock Blasting Terms and Symbols - A Dictionary of Symbols in Rock Blasting and Related Areas Like Drilling, Mining and Rock ...

Author: Bhawani Singh

Publisher: Elsevier

ISBN: 0080449875

Category: Technology & Engineering

Page: 489

View: 465

Vast knowledge has been developed in the area of tunnelling in weak rocks over the years, and this book bridges an important gap by bringing all the information together for the benefit of the tunnelling Industry. In particular, tunnelling in poor conditions is a huge challenge for engineers and designers, and this book tackles all typical problems headon. Topics covered include classification approach, design approaches for site-specific grounds, a new invention on shielded tunnel boring machine, case histories, tunnel mechanics, risk engineering and management culture. Based on extensive field research experiences in Himalayan region and Alps Exclusive chapters on tunnelling hazards, squeezing ground conditions (a full detailed case study), swelling ground conditions, critical state rock mechanics, etc. Supported by over 180 figures and 90 tables of data, and test examples (with solutions)

Engineering in Rocks for Slopes Foundations and Tunnels

Anon (1985): Explosive and rock blasting: field technical operations, Atlas Powder Company, Dallas, USA. ... Badal R, Dhawan AK and Choudhari RK (1995): Drilling and blasting for hard rock tunneling of Delhi Metro, Semi. Geotech.

Author: T. Ramamurthy

Publisher: PHI Learning Pvt. Ltd.

ISBN: 8120341686

Category: Rock mechanics

Page: 739

View: 197

"With the ever increasing developmental activities as diverse as the construction of dams, roads, tunnels, underground powerhouses and storage facilities, petroleum exploration and nuclear repositories, a more comprehensive and updated understanding of rock mass is essential for civil engineers, engineering geologists, geophysicists, and petroleum and mining engineers. Though some contents of this vast subject are included in undergraduate curriculum, there are full-fledged courses on Rock Mechanics/Rock Engineering in postgraduate programmes in civil engineering and mining engineering. Much of the material presented in this book is also taught to geology and geophysics students. In addition, the book is suitable for short courses conducted for teachers, practising engineers and engineering geologists." -- Back cover.

Rotary Drilling and Blasting in Large Surface Mines

... Peck J., Kennedy D. Proceedings 2nd Conference Large Open Pit Mining Singh D. P. Proceedings Rock Mechanics Symposium Institute of Engineers, Australia Thuro K., 103–109 Falsbau 14 Drillability in Hard Rock Drill and Blast Tunneling ...

Author: Bhalchandra V. Gokhale

Publisher: CRC Press

ISBN: 0203841395

Category: Technology & Engineering

Page: 748

View: 284

In large surface mining operations, drilling and blasting activities constitute more than 15% of the total costs. In order to optimize performance and minimize costs, a thorough knowledge of drill and blast operations is, therefore, extremely important.In this unique reference volume, rotary blasthole drilling and surface blasting, as applied in la