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《Crustal Deformation and Earthquake》 2001-02
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SIMULATION ON TIME REVERSAL EFFECT OF 3-D MODEL WITH INHOMOGENEOUS MATERIALS AND INNER BOUNDARIES

Chen Xiangpeng, Zheng Wenheng and Wang Cheng (ECSI,Huazhong Univ. of Sci & Tech,Wuhan 430074)  
A 3 D typical model with inhomogeneous materials and inner boundaries is built by means of 3 D non linear dynamical FEM.On the basis of theory of time reversal effect and simulation result,the possibility of touching off earthquake artificially is discussed.A new way of disaster reduction is put forward grounded upon touching off earthquake in advance,increasing the number of earthquakes and reducing magnitude.It is testified if the time reversed seismogram were used as the loading curve and an efficient source of force were exerted on the rock at the seismographic station,then artificial input energy will focus on the hypocenter and cause an intense impact,therefore an earthquake would be touched off.
【Fund】: 国家自然科学基金项目 (4 983 4 0 0 2 )资助
【CateGory Index】: P315.1
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