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Rock burst proneness prediction by acoustic emission test during rock deformationZHANG Zhi-zhen(张志镇), GAO Feng(高峰), SHANG Xiao-ji(尚晓吉) (1. State Key Laboratory for Geomechanics and Deep Underground... proneness was connected with the acoustic emission (AE) parameter in this work, which contributes to predicting the rock burst risk using AE technique. Primarily, a rock burst proneness index is proposed......
rock shear rheological instrument was employed during the indentation process under disc cutters, and acoustic emission location system was used to analyze the rock damage and physical deterioration..., RYL-600 rock shear rheological instrument was modified and employed during the indentation process under TBM disc cutters. Acoustic emission location system was used to investigate rock damage......
and nonassoated flow rule [20, 21]. In the process of rock burst, there always appear varying degrees of rock peeling, falling and even massive ejections accompanied with the phenomenon of acoustic emission. After... Engineering, 2014, 19: 117-121. [6] LI X W. Application of working face rock burst prediction of grey modeling cusp catastrophe analysis based on the acoustic emission [J]. Applied Mechanics and Materials......
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MUNSTER J G. An acoustic emission study of damage development and stress-memory effects in sandstone [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1996... and Rock Engineering, 2016, 49(3): 785-800. DOI: 10.1007/s00603- 015-0775-1. [18] HE M C, MIAO J L, FENG J L. Rock burst process of limestone and its acoustic emission characteristics under true......
Abstract: The influence of heterogeneity on mechanical and acoustic emission characteristics of rock specimen under uniaxial compress was studied with numerical simulation methods. Weibull distribution...-axial strain curve is gentle before the rock failure. The numerical results agree with the previously numerical results and earlier experimental measurements. Key words: heterogeneity; acoustic emission......
strength and mutagenicity of rocks increase with higher rock heterogeneity. Key words: RFPA2D; heterogeneous effect; rock damage; acoustic emission characteristic; numerical test 岩石是一种由不同矿物质晶体,胶结材料,孔隙及裂隙等多种缺...; 文献标志码:A 文章编号:1672-7207(2013)06-2470-06 Numerical tests on heterogeneous effect in damage and acoustic emission characteristic of rocks......
J. Cent. South Univ. (2016) 23: 2314-2320 DOI: 10.1007/s11771-016-3289-4 Numerical simulation study on hard-thick roof inducing rock burst in coal mine HE Jiang(何江)1, 2, 3, DOU Lin-ming(窦林名)1, 2, 3... surrounding rocks. The most significant measures for rock burst prevention are controlling of horizontal stress and vibration strength. Key words: hard-thick roof; rock burst; numerical simulation; horizontal......
damage to the workface and roadways. In particular, the 3rd rock burst disaster on June 19th, 2015 led to a halt in production of the panel 3112. 5 Conclusions In this work, a new theoretical model...J. Cent. South Univ. (2017) 24: 2951-2960 DOI: https://doi.org/10.1007/s11771-017-3709-0 Assessment and analysis of strata movement with special reference to rock burst mechanism in island longwall......
stored in rock [9-12]. Due to the massive damage caused by rockburst, more and more attentions have been drawn to the research on rockburst in the past decades from the theoretical analysis [13-17], experimental study [18-22], numerical simulation [23-25] and project case analysis [8, 9, 26], especially the prediction of rockburst [27-34]. The study of rockburst proneness (or tendency) of rock......