00 Timing Optimization Tunnels Monaco
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Transcript of 00 Timing Optimization Tunnels Monaco
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DNA-Blast Software - Timing optimization through numerical simulation
DNA-Blast Software ADVANCED BLASTING OPTIMIZATION SOFTWARE
Timing optimization through numerical simulation Two tunnels in downtown Monaco
By Dr Thierry BERNARD Thierry Bernard Technologie
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DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
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DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
The project
Consists in drilling two tunnels in downtown Monaco
Distances to closest building are very short (30 m)
Vibration limits are 7 mm/s
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DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Very sensitive environment
![Page 5: 00 Timing Optimization Tunnels Monaco](https://reader034.fdocuments.in/reader034/viewer/2022052509/563dbbaa550346aa9aaf33f7/html5/thumbnails/5.jpg)
DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Very sensitive environment
![Page 6: 00 Timing Optimization Tunnels Monaco](https://reader034.fdocuments.in/reader034/viewer/2022052509/563dbbaa550346aa9aaf33f7/html5/thumbnails/6.jpg)
DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Vibration monitoring Remote download and set up
![Page 7: 00 Timing Optimization Tunnels Monaco](https://reader034.fdocuments.in/reader034/viewer/2022052509/563dbbaa550346aa9aaf33f7/html5/thumbnails/7.jpg)
DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Vibration monitoring Remote download and set up
![Page 8: 00 Timing Optimization Tunnels Monaco](https://reader034.fdocuments.in/reader034/viewer/2022052509/563dbbaa550346aa9aaf33f7/html5/thumbnails/8.jpg)
DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
More than 100 holes
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DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Cut with big empty holed
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DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Standard design Electric detonator Sequential timer
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DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Vibration trace at 28 m PPV = 2.2 mm/s
![Page 12: 00 Timing Optimization Tunnels Monaco](https://reader034.fdocuments.in/reader034/viewer/2022052509/563dbbaa550346aa9aaf33f7/html5/thumbnails/12.jpg)
DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO Cut with big empty holed Electronic design
![Page 13: 00 Timing Optimization Tunnels Monaco](https://reader034.fdocuments.in/reader034/viewer/2022052509/563dbbaa550346aa9aaf33f7/html5/thumbnails/13.jpg)
DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Electronic design Electronic detonators
![Page 14: 00 Timing Optimization Tunnels Monaco](https://reader034.fdocuments.in/reader034/viewer/2022052509/563dbbaa550346aa9aaf33f7/html5/thumbnails/14.jpg)
DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
Vibration trace at 18 m
PPV = 1.8 mm/s
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DNA-Blast Software - Timing optimization through numerical simulation
TUNNELS UNDER DOWNTOWN MONACO
• Electric sequential blasting
– Vibration level : 2.21 mm/s
– Distance to first seismograph : 28 m< 7mm/s
• Electronic blasting (optimized)
– Vibration level : 1.97 mm/s
– Distance to first seismograph : 18 m