Controllable Blasting Technology of Urban Road-Cut Excavation Project under 220kV Super-Voltage Transmission Line

Abstract:

There are 220kV super-voltage transmission lines and electrification line above the road-cut excavation blasting project, which is near the buildings, the blasting vibration and fly-rocks shall be strictly controlled, thus the blasting design and construction are difficult. This paper describes the controllable blasting technology design of the road-cut excavation in the complex environment, the blasting parameter selection, the detonating network and the safety technology. Practice has proved that the blasting vibration and individual fly-rock can be controlled by the meticulous design and construction as well as reliable safety technology measures under the condition of no cover when urban road-cut excavation blasting is carried out in the complex environment.

• Periodical: Advanced Materials Research (Volume 749)
• Pages: 641-644
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.749.641
• Online since: August 2013
• Authors: Shun Xiang Xu, De Zhi Chen
• Keywords: Controllable Blasting, Millisecond Blasting, Road-Cut Excavation, Safety Technology, Super-Voltage Transmission Line

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