B. Controlled blasting in hard intense jointed rock in tunnels. (). . explosives and timing between the contour holes influence the overbreak. From the. Rock Blasting Terms and Symbols: A Dictionary of Symbols and Terms in Rock Blasting and Related Areas like Drilling, Mining and Rock Mechanics. PDF | Drill and blast system is used in hard rock excavation due to its economics and overbreak has been caused by blasting practice or poor rock mass quality'.
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Rock Blasting and Overbreak Control. 3. Recipient's Catalog No. 1. Report No. 5. Report Date. December 6. PerIorrning Organization Code. 7. ~uthor!r). Samba Pa-Ti SANTANA 82 °. Since | DOn't Have You GUNS N' R0SES 3. Sultans Of Swing DIRE stress estimation from borehole scans for prediction of . charge in Adobe Acrobat (PDF) format lesforgesdessalles.info pdf . Image from Rock Blasting and Overbreak Control, FHWA,
Select one.. Advanced Search Small Search Button. Back to Previous Page. File Format:. Rock blasting and overbreak control. Published Date: This document cannot be previewed automatically as it exceeds 5 MB. Please click the thumbnail image to view the document.
Konya, Calvin J.
Corporate Creators: United States. Resource Type: Research Paper.
OCLC Number: Corporate Publisher: Federal Highway Administration. NTL Classification: Explosives Presplitting Blasting Rocks Vibration. This handbook is specifically designed as a guide to highway engineers and blasting practitioners working with highway applications. It was used as a handbook for the FHWA course of the above title.
The handbook is a basic review of explosives and their characteristics, along with explosive selection criteria.
Initiations and timing effects as well as patterns are also discussed. A simple step by step procedure is outlined to help the engineer review blasting submittals in a systematic fashion.
Airblast and ground vibration are discussed along with methods for evaluation and control. Several solved examples are presented in a manner to simplify the necessary calculations with step by step procedures given where appropriate.
Collection s: Supporting Files: Related Documents: You May Also Like: The objective of this research was to implement fracture control procedures in a tunnel project and to assess the practicality, advantages, disadvantages, performance and cost effectiveness of fracture control methods against smooth blasting procedur Fourth edition. Blasting and Bomardiering. Unit Operations in Chemical Engineering.
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