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EXCAVATION TECHNOLOGY OF OVERLONG-DITCH BY ONE SINGLE BLASTING IN COMPLICATED SURROUNDINGS

LI Yuan-quan

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Abstract

The excavation of a ditch of 376m was fulfilled by only one single blasting with deep-hole in very complicated surroundings.The blasting was under well control of the danger of blasting vibration and fly rock,and saw a good effect by adopting techniques like hole-by-hole millisecond delay blasting technology and optimizing blasting parameters.The paper described the hole-by-hole blasting network and summarized the key points of network connecting,provided some experience for large-scale blasting in complicated surroundings.

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What this paper is about

The excavation of a ditch of 376m was fulfilled by only one single blasting with deep-hole in very complicated surroundings.The blasting was under well control of the danger of blasting vibration and fly rock,and saw a good effect by adopting techniques like hole-by-hole millisecond delay blasting technology and optimizing blasting parameters.The paper described the hole-by-hole blasting network and summarized the key points of network connecting,provided some experience for large-scale blasting in complicated surroundings.

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Available abstract

The excavation of a ditch of 376m was fulfilled by only one single blasting with deep-hole in very complicated surroundings.The blasting was under well control of the danger of blasting vibration and fly rock,and saw a good effect by adopting techniques like hole-by-hole millisecond delay blasting technology and optimizing blasting parameters.The paper described the hole-by-hole blasting network and summarized the key points of network connecting,provided some experience for large-scale blasting in complicated surroundings.

Key concepts: Rock blasting, Excavation, Ditch, Deep hole, Engineering, Drilling and blasting, Mining engineering, Geotechnical engineering

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EXCAVATION TECHNOLOGY OF OVERLONG-DITCH BY ONE SINGLE BLASTING IN COMPLICATED SURROUNDINGS — Research Paper | ScholarLens