A novel method for simulating nuclear explosion with chemical explosion to form an approximate plane wave: Field test and numerical simulation
作者机构：College of Civil and Architecture EngineeringNorth China University of Science and TechnologyTangshan063210China State Key Laboratory for Tunnel EngineeringChina University of Mining and Technology-BeijingBeijing100083China School of Mechanics and Civil EngineeringChina University of Mining and Technology-BeijingBeijing100083China
出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)
年 卷 期：2024年第16卷第6期
页 面：2137-2153页
核心收录：
学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程]
基 金：supported by the General Program of the National Natural Science Foundation of China(Grant No.52074295) the Special Fund for Basic Scientific Research Business Expenses of Central Universities(Grant No.2022YJSSB06) supported by State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and technology,Beijing,China(Grant No.SKLGDUEK202217)
主 题：Approximate plane wave Multi-hole simultaneous blasting Chemical explosion Nuclear explosion Pressure sensor inclusion
摘 要：A nuclear explosion in the rock mass medium can produce strong shock waves,seismic shocks,and other destructive effects,which can cause extreme damage to the underground protection *** the increase in nuclear explosion power,underground protection engineering enabled by explosion-proof impact theory and technology ushered in a new *** paper proposes to simulate nuclear explosion tests with on-site chemical explosion tests in the form of multi-hole ***,the mechanism of using multi-hole simultaneous blasting to simulate a nuclear explosion to generate approximate plane waves was *** plane pressure curve at the vault of the underground protective tunnel under the action of the multi-hole simultaneous blasting was then obtained using the impact test in the rock mass at the *** to the peak pressure at the vault plane,it was divided into three regions:the stress superposition region,the superposition region after surface reflection,and the approximate plane stress wave zone.A numerical simulation approach was developed using PFC and FLAC to study the peak particle velocity in the surrounding rock of the underground protective cave under the action of multi-hole *** time-history curves of pressure and peak pressure partition obtained by the on-site multi-hole simultaneous blasting test and numerical simulation were compared and analyzed,to verify the correctness and rationality of the formation of an approximate plane wave in the simulated nuclear *** comparison and analysis also provided a theoretical foundation and some research ideas for the ensuing study on the impact of a nuclear explosion.
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