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Propagation patterns of microseismic waves in rock strata during mining:an experimental studyDong Li1,Jun-fei Zhang2,Cun-wen Wang1,Fu-xing Jiang11. School of Civil and Resources Engineering... patterns of microseismic waves under complex geological conditions must be elucidated. To achieve this aim, a simulation model of a typical coalmine was designed using similar materials according......
Nonlinear finite element analysis of effect of seismic waves on dynamic response of Shiziping damDING Xuan-ming(丁选明)1, 2, LIU Han-long(刘汉龙)1, YU Tao(于陶)1, KONG Gang-qiang(孔纲强)1(1. Key Laboratory... of seismic waves are inputted from the top of the bedrock to analyze the dynamic responses of the dam. The numerical results show that the calculated dynamic magnification factors display a good consistency......
J. Cent. South Univ. (2016) 23: 2951-2957 DOI: 10.1007/s11771-016-3359-7 Characteristics and mechanisms of strain waves generated in rock by cylindrical explosive charges LIU Ke-wei(刘科伟)1, 2, 3, LI... 410083, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: A superposing principle, by suitably adding the strain waves from a number of concentrated explosive......
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Numerical simulation for acoustic streaming with standing wave in a rectangular pipeLEI Hong, HE Ji-cheng(Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern... in a rectangular pipe. The governing equations were solved by a three-order spectral element method, and the effect of standing acoustic wave on the fluid flow was described by the acoustic boundary-velocity......
waves ZUO Yu-jun(左宇军)1, 2, TANG Chun-an(唐春安)3, ZHU Wan-cheng(朱万成)2, LI Di-yuan(李地元)4, LI Shu-cai(李术才)5 (1. Research Center for Numerical Test of Material Failure, Dalian University, Dalian 116622... stress waves. The results show that the propagation phenomenon of stress wave in the surrounding rock of tunnel and the failure process of surrounding rock under explosive stress waves are reproduced......
Detection of stacking orientation error of CFRP composite laminates using ultrasound waves Sun-Kyu KIM1, David HSU2, Young-Hwan SEO3, Kwang-Hee IM4 1. Division of Mechanical System... was developed for generating a shear wave. A pyramid with an isosceles triangle with two 45o was made of aluminum to generate shear waves using two longitudinal transducers based on ultrasonic-polarized......
Magneto-elastic waves in the orthoferrite plates induced by solitary domain wallKUZ’MENKO A P,ZHUKOV E A,DOBROMYSLOV M B,KAMINSKII A V摘 要:Dynamics of domain walls(DWs) was studied in transparent thin orthoferrite samples with weak ferromagnetic ordering at subsonic and supersonic speeds.Direct measurements were made of flexural vibration amplitude......
theory has been applied to analyzing the transporting system. Conclusions can be drawn as follows. Under the interaction of waves and currents, node forces FX and FZ acted by the transporting pipe on the mining vehicle are less than 2 kN, which indicates that waves and currents have little influence on the spatial shape of the transporting pipe and the mining vehicle movement. On the other hand......