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| 1 | Practical assessment of rock damage due to blasting显示文摘Blasting is the most cost effective methodology to break rock for mining or civil engineering applications.A good production blast will break only the rock that is needed to be removed,leaving the host rock with minimal damage.The control of rock damage due to blasting is very important when it comes to mine or construction design,safety,and cost.Damage to the host rock due to a production blast could result in failures,overbreak and unstable ground.Knowing how far the fractures generated by a production blast will go into the host rock is a valuable tool for engineers to design a safe highwall while keeping the actual excavation close to the design.Currently,there are several methods available to predict damage due to blasting.The accuracy of many of these methods is questionable,and in most cases,the methodologies over predict the results.This often leads to inefficient mines and poor construction works.When the current methodologies are reviewed,each one presents sound approaches,but in many cases they also lack consideration of other variables that,according to the authors,need to be included when predicting blast damage.This paper presents a practical methodology to assess the rock damage from blasting by combining other methodologies.The proposed method allows consideration of more variables when compared to available methods,resulting in a more accurate rock damage assessment.The method uses the estimation of the generated levels of peak particle velocity with the distance from a production blast presented by Persson and Holmberg,the peak particle velocity damage ranges proposed by Forsyth and the relationship between the static compressive strength and dynamic compressive strength of rocks from Liu.The new methodology was validated using the data published in a large-scale study performed in granite by Siskind. | Jhon Silva Tristan Worsey Braden Lusk | 2019 | International Journal of Mining Science and Technology2019，29，3： | 5 |
| 2 | Thoracoscopic pancreatic denervation for pain control in irresectable pancreatic cancer显示文摘 | Worsey J Ferson PF Keenan RJ | 1993 | Br J Surg1993，80，： | 1 |
| 3 | Improved conversion of methanol to single-cell protein by Methylophilus methylotrophus显示文摘 | Windass J D Worsey M J Pioli E M | 1980 | Nature1980，287，： | 1 |
| 4 | Degree reduction for Bézier curves显示文摘 | Watkins M Worsey A | 1988 | Computer-Aided Design1988，20，7： | 1 |
| 5 | Success of unilateral neck exploration for sporadic primary hyperparathyroidism 显示文摘 | Worsey M J Carry SE Watson CG | 1993 | Surgery1993，114，6： | 1 |
| 6 | Elecrical behavior of a simple helical flux compression generator for code benchmarking 显示文摘 | Neuber A Cornette J B Jamison K Parkinson E R Giesselmann M Worsey P Baird J Schmidt M Kristiansen | 2001 | IEEE Transactions on Plasma Science2001，29，4： | 1 |
| 7 | Improved conversion of methanol to single-cell protein by Methylophilus methylotrophus 显示文摘 | WINDAAS J D WORSEY M J PIOLI E M | 1980 | Nature1980，287，： | 1 |
| 8 | Degreen reduction of Bezier curves显示文摘 | Watkins M A Worsey A J | 1988 | Computer Aided Design1988，20，7： | 1 |
| 9 | Desree reduction for Bezier curves显示文摘 | Wstkins M Worsey A | 1988 | Computer Geometric Design1988，20，7： | 1 |
| 10 | Degree reduction for Bézier curves 显示文摘 | Watkins M Worsey A | 1988 | Computer Aided Design1988，20，39： | 1 |
| 11 | Degree reduction of Bézier curves 显示文摘 | Watkin M A Worsey A J | 1988 | Computer-Aided Design1988，20，7： | 1 |
| 12 | Ann-dimensional Clough-Tocher interpolant显示文摘 | A. J. Worsey G. Farin | 1987 | Constructive Approximation1987，，1： | 1 |
| 13 | Success of unilateral neck explor-ation for sporadic primary hyperparathyroidism显示文摘 | Worsey MJ Carty SE Watson CG | 1993 | Surgery1993，114，： | 1 |
| 14 | Formulation of production blasting criteria for the construction of a lime plant at a major crushed stone operation显示文摘 | Worsey P Giltner S Drechsler T | 1998 | International Journal for Blasting and Fragmentation1998，2，2： | 1 |
| 15 | Degree reduction for Bézier curves 显示文摘 | Watkins M A Worsey A | 1988 | Computer Aided Design1988，21，7： | 1 |
| 16 | Degree reduction of Béziercurves显示文摘 | WATKINS MA WORSEY AJ | 1988 | Computer Aided Design1988，20，7： | 1 |
| 17 | Thoracoscopic pancreatic denervation for pain control in irresectable pancreatic cancer显示文摘 | Worsey J Ferson PF Keenan RJ | 1993 | Br J Surg1993，80，8： | 1 |
| 18 | Degree reduction for Bézier curves显示文摘 | WATKINS M WORSEY A | 1988 | Computer-Aided Design1988，20，7： | 1 |
| 19 | The octant of a sphere as a non-degenerate triangular Bezier patch 显示文摘 | Farin G Piper B Worsey A J | 1987 | Computer Aided Geometric Design1987，4，4： | 1 |
| 20 | Degree reduction of Bezier curves显示文摘 | Watkins M A Worsey A J | 1988 | Computer-Aided Design1988，20，7： | 1 |
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