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Rock Mechanics and Rock Engineering, 2013
The article presents comparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators. The nonel detonator is a common type of detonator used in drill-and-blast tunnel excavations, while the use of electronic detonators in recent years has also been gaining popularity in complex tunneling ...
Li, Yanzhi +5 more
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The article presents comparison of excavation damage zones resulting from blasting with nonel detonators and blasting with electronic detonators. The nonel detonator is a common type of detonator used in drill-and-blast tunnel excavations, while the use of electronic detonators in recent years has also been gaining popularity in complex tunneling ...
Li, Yanzhi +5 more
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Drill and blast excavation forecasting using 3D laser scanning
Geomechanics and Tunnelling, 2017AbstractThe application of 3D laser scanning technology in tunnelling has gained increasing significance in recent years. Laser scanning is an innovative holistic approach for data acquisition in tunnelling regarding the geometrical parameters. It is a distance‐based imaging technique for three‐dimensional and high‐resolution illustration (3D point ...
Seraphim Amvrazis +3 more
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Dynamic Analysis of Tunnel Blasting Excavation Effect on Overpass
Advanced Materials Research, 2014Although drilling and blasting method is widely used to excavate tunnel structures, it has great effect on adjacent ground structures. In order to find out the influence sphere and features of this construction method on overpass, three-dimensional numerical simulation method was used to analyze the displacement, stress and blasting vibration velocity ...
Chun Lei Xin, Bo Gao
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NEW APPROACH ON BLASTING FOR EXCAVATION
2013In this study, efficiency of a new method of stemming with plaster was investigated in blast holes and compared with conventional method of stemming with “dry drill cuttings”. Drill cuttings is generally used in open pits, quarries and other blast operations as the most common stemming material since it is the most readily available in blast sites ...
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Drivage Excavation Using Drilling and Blasting
2023Vivek Kumar Himanshu +3 more
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Remote Control of Drill and Blast Excavation and Demolition
1988The development of a remotely-controlled drill and blast excavation system is desirable both because it is potentially more economical than mechanical excavation in the hardest rocks and because it will improve safety. A serious impediment to the development of such a system has been the problem of relocating and reentering previously drilled ...
Robert G. Lundquist +2 more
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Introduction to Underground Excavation by Drilling and Blasting
2016Drilling and blasting are the most common methods for tunnelling and underground excavation. Working cycle of D & B excavation, excavation methods and charging methods for tunnels driving, shafts sinking and raise driving are illustrated in this chapter.
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Study on the mechanism of displacement mutation for jointed rock slopes during blasting excavation
International Journal of Rock Mechanics and Minings Sciences, 2022jinhao Dai, Jianhua Yang, Chi Yao
exaly
Bulletin of Engineering Geology and the Environment, 2023
Zhixian Hong +4 more
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Zhixian Hong +4 more
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