Nonlinear mechanics problems in rock explosion and shock. Part III：The calculation principle of engineering seismic effects induced by underground nuclear explosion and its application
WANG Mingyang1，2，LI Jie1，2
(1. School of Mechanical Engineering，Nanjing University of Science and Technology，Nanjing，Jiangsu 210094，China；
2. State Key Laboratory of Explosion and Impact and Disaster Prevention and Mitigation，Army Engineering University of PLA，Nanjing，Jiangsu 210007，China)
Abstract：The measured data of the engineering seismic effects induced by underground nuclear explosion were systematically analyzed，and a consistent method for quantitatively representing deformation characteristics with a dimensionless characteristic energy factor was constructed by analyzing the energy radiation characteristics of deep buried nuclear explosion，shallow buried explosion and surface explosion. The threshold value and the gradation decline law of the irreversible deformation energy factor in the range of near area to middle/far area of the explosion were obtained. A theoretical method for calculating the local irreversible deformation of the engineering seismic effects at a certain ratio distance away from the center caused by the underground nuclear explosion was proposed for the first time，and the scientific reliability of the method was verified by the measured data. Based on the in-depth study of the influence of the explosion-activated rock block deformation on the surrounding rock stability of underground engineering，it was pointed out that the design of deep-ground protection engineering resisting large yield earth-penetrating weapons must pay attention to the engineering seismic effect，and its calculation method was given.
王明洋1，2，李 杰1，2. 爆炸与冲击中的非线性岩石力学问题III：地下核爆炸诱发工程性地震效应的计算原理及应用[J]. 岩石力学与工程学报, 2019, 38(4): 695-707.
WANG Mingyang1，2，LI Jie1，2. Nonlinear mechanics problems in rock explosion and shock. Part III：The calculation principle of engineering seismic effects induced by underground nuclear explosion and its application. , 2019, 38(4): 695-707.
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2019, Vol. 38 
