Rotary Drilling and Blasting in Large Surface Mines

ISBN-13: 9780415878784 / Angielski / Twarda / 2010 / 748 str.

Balchandra V. Gokhale

Opis

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 large surface mines, are comprehensively covered. Both new and classic concepts, techniques and methodologies are presented, supported by numerous illustrations and practical data. In 26 chapters, drilling, surface blasting, rock, rock mass, machinery, tools and accessories, compressors and air flushing, computing and practice are many other relevant subjects are treated; the first 16 chapters deal with rotary blasthole drilling, and the 10 next chapters with the concepts, theory and practice of blasting. Moreover, the 14 appendices provide vital technical and commercial data, to further support the reader to design, plan, execute, and calculate blasthole drilling operations. This volume is intended for professionals and technicians in mining, exploration, geological and mechanical engineering, who are involved with the design, planning, and execution of rotary drilling and blasting operations in surface mines.

Spis treści

Surface Rock Excavation Scenario. An Overview of Blasthole Drilling. Properties of Rocks. Brief History of Rotary Blasthole Drilling. Rotary Blasthole Drilling Bits. Rotary Blasthole Drilling Accessories. Rotary Blasthole Drills. Compressed Air and Air Compressors. Mechanics of Rock Fracture Under a Drill Bit. Flushing the Blasthole. Effect of Altitude and Severe Weather. Computers in Rotary Blasthole Drilling. Concepts for Rotary Blasthole Drill Design. Cost Analysis of Rotary Blasthole Drilling. Procurement of Rotary Blasthole Drills. Tips for Operating Rotary Blasthole Drills. Mechanics of Blast Fragmentation. Properties of Explosives. Thermochemistry of Explosives. Explosives - Their History and Composition. Testing Explosives. Blasting Consumable and Accessories. Hazards to and from Blasting. Properties of Rock Masses. Methods and Patterns of Charging Blastholes. Design of a Surface Blast.

O autorze

Bhalchandra V. Gokhale is an experienced professional who has worked both in practice, on mine construction and foundation works, and on the technological side of blasthole drilling equipment. Through this book, he shares his extensive knowledge of the technological aspects of drilling, mining and construction equipment and their application.