岩爆的深度判定法及应用
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摘要
工程实践中岩爆的发生存在一个临界深度。若能根据工程开挖的深度对岩爆的等级进行划分,那么对实际工程中岩爆的预测和控制将具有重要的作用。在国内外各种岩爆判定因子的基础上,分析得到了岩爆判定因子与工程开挖深度的关系。研究了地应力与岩体赋存深度的关系,结合弹塑性力学得到了三种岩爆深度判别公式。根据初始公式对岩爆的判定,在得到的公式中确定了不同深度下岩爆的等级。实例分析结果表明:三种岩爆深度判别公式具有较好的实用性和有效性。
There is a critical depth for rock burst in the engineering practice.If the classification of rockburst can be divided by the excavation depth of engineering,it will have the great significance to the prediction and control of rockburst in actual project.Based on the rockburst judgement factors used at home and abroad,the relationship between the judgement factors and the excavation depth of engineering is obtained by analysis.The relationship between geostress and the occurrence depth of rockmass was investigated.According to the theory of elastic-plastic mechanics,three formulas of rock burst depth criterion have been given.The classification of rockburst was made in these formulas to keep in accordance with initial formula.Experiment results showed that these formulas have good practicality and effectiveness.
There is a critical depth for rock burst in the engineering practice.If the classification of rockburst can be divided by the excavation depth of engineering,it will have the great significance to the prediction and control of rockburst in actual project.Based on the rockburst judgement factors used at home and abroad,the relationship between the judgement factors and the excavation depth of engineering is obtained by analysis.The relationship between geostress and the occurrence depth of rockmass was investigated.According to the theory of elastic-plastic mechanics,three formulas of rock burst depth criterion have been given.The classification of rockburst was made in these formulas to keep in accordance with initial formula.Experiment results showed that these formulas have good practicality and effectiveness.
引文
[1]陈宗基.岩爆的工程实录:理论与控制[J].岩石力学与工程学报,1987,8(1):4-8.
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[3]满轲,周宏伟.不同赋存深度岩石的动态断裂韧性与拉伸强度研究[J].岩石力学与工程学报,2010,29(8):1657-1663.
[4]秦向辉.平谷钻孔地应力与围岩力学性质关系试验研究[D].北京:中国地质大学,2010.
[5]朱焕春,陶振宇.不同岩石中地应力分布[J].地震学报,1994,16(1):49-63.
[6]景锋,盛谦,张勇慧,等.不同地质成因岩石地应力分布规律的统计分析[J].岩土力学,2008,29(7):1877-1883.
[7]Wu A X,Wang C L,Liu X H,et al.Characteristics and mechanisms of rockburst in a deep mine in China[C]//The7th International Symposium on Rockburst and Seismicity inMines.New York:Rinton Press,2008.
[8]侯发亮.圆形隧道中岩爆的判据及防治措施[M].北京:知识出版社,1989:195-201.
[9]唐宝庆,李显方,曹平.金属矿山硐室发生岩爆的数学判据的研究[J].江西有色金属,2009,23(2):14-15.
[10]李丽娟.金川矿山深部岩石岩爆倾向性研究[D].长沙:中南大学,2009.
[11]吴顺江,王春来,刘晓辉,等.会泽铅锌矿深部围岩岩爆倾向性分析[J].矿业工程研究,2010,25(1):24-26.
[12]吉学文,王春来,吴爱祥,等.某深井矿山岩爆特征及形成机理研究[J].金属矿山,2008(9):23-25.
[13]胡万宏,冯志宏.会泽铅锌矿深部矿岩岩体质量评价分析[J].采矿技术,2009,9(1):76-77.
[2]姜晨光,姜祖彬,刘华,等.花岗岩岩石力学参数与岩体赋存深度关系的研究[J].石材,2004(7):4-6.
[3]满轲,周宏伟.不同赋存深度岩石的动态断裂韧性与拉伸强度研究[J].岩石力学与工程学报,2010,29(8):1657-1663.
[4]秦向辉.平谷钻孔地应力与围岩力学性质关系试验研究[D].北京:中国地质大学,2010.
[5]朱焕春,陶振宇.不同岩石中地应力分布[J].地震学报,1994,16(1):49-63.
[6]景锋,盛谦,张勇慧,等.不同地质成因岩石地应力分布规律的统计分析[J].岩土力学,2008,29(7):1877-1883.
[7]Wu A X,Wang C L,Liu X H,et al.Characteristics and mechanisms of rockburst in a deep mine in China[C]//The7th International Symposium on Rockburst and Seismicity inMines.New York:Rinton Press,2008.
[8]侯发亮.圆形隧道中岩爆的判据及防治措施[M].北京:知识出版社,1989:195-201.
[9]唐宝庆,李显方,曹平.金属矿山硐室发生岩爆的数学判据的研究[J].江西有色金属,2009,23(2):14-15.
[10]李丽娟.金川矿山深部岩石岩爆倾向性研究[D].长沙:中南大学,2009.
[11]吴顺江,王春来,刘晓辉,等.会泽铅锌矿深部围岩岩爆倾向性分析[J].矿业工程研究,2010,25(1):24-26.
[12]吉学文,王春来,吴爱祥,等.某深井矿山岩爆特征及形成机理研究[J].金属矿山,2008(9):23-25.
[13]胡万宏,冯志宏.会泽铅锌矿深部矿岩岩体质量评价分析[J].采矿技术,2009,9(1):76-77.
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