The Research of Similar Material and Dosage in Blasting Model Test

Abstract:

Taking the surrounding rock of deep-buried at the Jinping II Hydropower Station as the engineering background,the research of similar material and dosage in blasting model test are carried out,based on the scaling method of Froude,the specific parameters of the model materials is determined;through indoor test,different ratio of model material standard specimen was carried out by mechanical test,the mix of similar material is got to simulated the actual rock;base on the theory of explosive stress wave,the research of the similar quantity is carried out.The results shows:froude can be applied to the theoretical calculation of the similar material in the experiments;the acoustic velocity and the strength of the model materials decreased with the increase of water paste ratio;using gypsum,water,sodium phosphate polymer(1-0.62:0.55%) applied to deep marble similar material in laboratory model test;corresponds to the actual blasting engineering 500 kg, 800 kg of similar explosive dosage for 60 grams, 90 grams.

• Periodical: Applied Mechanics and Materials (Volume 724)
• Pages: 152-155
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.724.152
• Online since: January 2015
• Authors: Hang Zhao*, Xin Ping Li, Qian Dong
• Keywords: Deep-Buried, Explosive Dosage, Laboratory Model Test, Scaling Method, Similar Materia

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