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作 者:薛凡喜 徐翔云 王安宝 张磊[1] 田立杰 XUE Fanxi;XU Xiangyun;WANG Anbao;ZHANG Lei;TIAN Lijie(Defense Engineering Institute,AMS,PLA,Beijing 100850,China)
出 处:《防护工程》2023年第4期27-33,共7页Protective Engineering
摘 要:地下强爆炸当量是反映地下强爆炸能效与表征地下强爆炸威力的重要参数之一。传统强爆炸当量估计方法灵敏性好、精度高,但严重依赖地面站点且空间局限性明显。利用ALOS/PALSAR-2数据和D-InSAR技术获取境外某次地下强爆炸引起的地表形变,基于pCDM模型与Bayes反演方法确定地下强爆炸最优埋深约465 m,等效腔体体积变化约1621000 m^(3),并基于地下腔体当量函数模型估计此次地下强爆炸当量约275 kt TNT,与地震波估计结果相近。由此可见,基于D-InSAR和相关地学模型进行地下强爆炸当量估计是一种快速可行的有效途径。Underground intense explosion yield is one of the important parameters that reflects the energy efficiency and characterizes of the power of the underground intense explosion.Traditional methods for estimating intense explosion yield have good sensitivity and high accuracy,but rely on ground observation stations heavily and have significant spatial coverage limitation.By using ALOS/PALSAR-2 data and D-InSAR(differential synthetic aperture radar interferometry)technology,we obtained the surface deformation caused by an underground intense explosion in some countries.Based on the pCDM(point compound dislocation model)and Bayesian inversion method,the optimal depth of burial(DOB)of this explosion was determined to be approximately 465 meters,with an equivalent cavity volume change of around 1,621,000 m^(3);the estimated yield was equivalent to approximately 275 kt TNT based on underground cavity yield function model,which is consistent with the seismic wave estimation.Therefore,it is concluded that models based on D-InSAR technology and relevant geophysics can provide a rapid,reliable and effective approach for estimating the underground intense explosion yield without the need for ground-based equipment support.
关 键 词:地下强爆炸 pCDM模型 BAYES估计 腔体当量函数 爆炸当量
分 类 号:P237[天文地球—摄影测量与遥感] TJ910.6[天文地球—测绘科学与技术]
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