岩爆的能量公式
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摘要
岩爆的发生是由储存在岩体内的能量突然释放导致的,岩爆能量的判定应采用直接的计算方法。研究和分析表明,工程开挖深度及岩石的抗压强度是岩爆发生的主要外因和内因。结合这两个因素,从能量的角度出发建立了岩爆的能量公式,运用量纲法对公式进行推理得到了公式的2个系数a和b。在此基础上,进一步地对岩爆能量公式的适用条件及通过能量对岩爆等级的判定进行了阐述。运用工程实例对公式验证,其结果证实,岩爆的判定结果与以往的结论一致,能量公式系数k与深度H成反比,且随着工程作业深度的增加,岩爆受工程作业深度的影响越来越大。
The occurrence of rockburst was resulted from the sudden burst of energy accumulating in the rock mass.Direct calculation methods were applied for the judgment for energy of rockburst.Research and analysis show that engineering excavation depth is the main external cause,and that rock compressive strength is the main internal cause.Combining these two factors,energy formula of rockburst is created from the perspective of energy and two coefficients of energy formula are inferred by dimensional analysis.Based on energy formula of rockburst,applicable conditions of energy formula and judgment for rockburst by energy are further stated.Firstly,the results of this formula in practical engineering prove that this formula is reliable.What is more,it is found that engineering excavation depth is inversely proportional to the coefficient(k)of energy formula.Finally,it is obtained that the deeper engineering excavation depth becomes,the greater the influence on rockburst is.
The occurrence of rockburst was resulted from the sudden burst of energy accumulating in the rock mass.Direct calculation methods were applied for the judgment for energy of rockburst.Research and analysis show that engineering excavation depth is the main external cause,and that rock compressive strength is the main internal cause.Combining these two factors,energy formula of rockburst is created from the perspective of energy and two coefficients of energy formula are inferred by dimensional analysis.Based on energy formula of rockburst,applicable conditions of energy formula and judgment for rockburst by energy are further stated.Firstly,the results of this formula in practical engineering prove that this formula is reliable.What is more,it is found that engineering excavation depth is inversely proportional to the coefficient(k)of energy formula.Finally,it is obtained that the deeper engineering excavation depth becomes,the greater the influence on rockburst is.
引文
[1]葛启发,冯夏庭.基于AdaBoost组合学习方法的岩爆分类预测研究[J].岩土力学,2008,29(4):943-948.
[2]谭以安.岩爆类型及其防治[J].现代地质,1991,5(4):450-456.
[3]张镜剑,傅冰骏.岩爆及其判据和防治[J].岩石力学与工程学报,2008,27(10):2034-2042.
[4]何满潮,杨国兴,苗金丽,等.岩爆实验碎屑分类及其研究方法[J].岩石力学与工程学报,2009,28(8):1521-1529.
[5]高玮.基于蚁群聚类算法的岩爆预测研究[J].岩土工程学报,2010,32(6):874-880.
[6]陈卫忠,吕森鹏,郭小红,等.脆性岩石卸围压试验与岩爆机理研究[J].岩土工程学报,2010,32(6):963-969.
[7]赵洪波.岩爆分类的支持向量机方法[J].岩土力学,2005,26(4):642-644.
[8]邱道宏,陈剑平,肖云华,等.分离式隧道非同步开挖岩爆预测研究[J].岩土力学,2009,30(2):515-520.
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[10]冯夏庭,王泳嘉.深部开采诱发的岩爆及其防治策略的研究进展[J].中国矿业,1998,7(5):42-45.
[11]白云飞.基于突变理论的矿柱岩爆机理与岩爆预测研究[D].长沙:中南大学,2009.
[12]王斌,李夕兵,马春德,等.基于三维地应力测量的岩爆预测问题研究[J].岩土力学,2011,32(3):849-854.
[13]蔡美峰,刘卫东,李远.玲珑金矿深部地应力测量及矿区地应力场分布规律[J].岩石力学与工程学报,2010,29(2):227-233.
[14]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.
[15]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.
[16]何世林,王春来.会泽铅锌矿深部开采岩爆影响因素分析[J].矿业工程研究,2010,25(1):21-23.
[17]陈陆望,白世伟,殷晓曦,等.坚硬岩体中马蹄形洞室岩爆破坏平面应变模型试验[J].岩土工程学报,2008,30(10):1520-1526.
[18]徐飞,徐卫亚.岩爆预测的粒子群优化投影寻踪模型[J].岩土工程学报,2010,32(5),718-723.
[19]陈海军,郦能惠,聂德新,等.岩爆预测的人工神经网络模型[J].岩土工程学报,2002,24(2):229-232.
[20]王发芝,汪令辉,谢学斌.模糊灰关联模式识别方法在岩爆预测中的应用[J].金属矿山,2009(5):172-174.
[21]康勇,李晓红,王青海,等.隧道地应力测试及岩爆预测研究[J].岩土力学,2005,26(6):959-963.
[22]王吉亮,陈剑平,杨静,等.岩爆等级判定的距离判别分析方法及应用[J].岩土力学,2009,30(7):2203-2208.
[23]蔡美峰,王金安,王双红.玲珑金矿深部开采岩体能量分析与岩爆综合预测[J].岩石力学与工程学报,2001,20(1):38-42.
[2]谭以安.岩爆类型及其防治[J].现代地质,1991,5(4):450-456.
[3]张镜剑,傅冰骏.岩爆及其判据和防治[J].岩石力学与工程学报,2008,27(10):2034-2042.
[4]何满潮,杨国兴,苗金丽,等.岩爆实验碎屑分类及其研究方法[J].岩石力学与工程学报,2009,28(8):1521-1529.
[5]高玮.基于蚁群聚类算法的岩爆预测研究[J].岩土工程学报,2010,32(6):874-880.
[6]陈卫忠,吕森鹏,郭小红,等.脆性岩石卸围压试验与岩爆机理研究[J].岩土工程学报,2010,32(6):963-969.
[7]赵洪波.岩爆分类的支持向量机方法[J].岩土力学,2005,26(4):642-644.
[8]邱道宏,陈剑平,肖云华,等.分离式隧道非同步开挖岩爆预测研究[J].岩土力学,2009,30(2):515-520.
[9]Bolstad D D.Rockburst control research by the US Bureau ofMines.Rockbursts and Seismicity in Mines.Balkema,Rotterdam,Brookfield,1988.
[10]冯夏庭,王泳嘉.深部开采诱发的岩爆及其防治策略的研究进展[J].中国矿业,1998,7(5):42-45.
[11]白云飞.基于突变理论的矿柱岩爆机理与岩爆预测研究[D].长沙:中南大学,2009.
[12]王斌,李夕兵,马春德,等.基于三维地应力测量的岩爆预测问题研究[J].岩土力学,2011,32(3):849-854.
[13]蔡美峰,刘卫东,李远.玲珑金矿深部地应力测量及矿区地应力场分布规律[J].岩石力学与工程学报,2010,29(2):227-233.
[14]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.
[15]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.
[16]何世林,王春来.会泽铅锌矿深部开采岩爆影响因素分析[J].矿业工程研究,2010,25(1):21-23.
[17]陈陆望,白世伟,殷晓曦,等.坚硬岩体中马蹄形洞室岩爆破坏平面应变模型试验[J].岩土工程学报,2008,30(10):1520-1526.
[18]徐飞,徐卫亚.岩爆预测的粒子群优化投影寻踪模型[J].岩土工程学报,2010,32(5),718-723.
[19]陈海军,郦能惠,聂德新,等.岩爆预测的人工神经网络模型[J].岩土工程学报,2002,24(2):229-232.
[20]王发芝,汪令辉,谢学斌.模糊灰关联模式识别方法在岩爆预测中的应用[J].金属矿山,2009(5):172-174.
[21]康勇,李晓红,王青海,等.隧道地应力测试及岩爆预测研究[J].岩土力学,2005,26(6):959-963.
[22]王吉亮,陈剑平,杨静,等.岩爆等级判定的距离判别分析方法及应用[J].岩土力学,2009,30(7):2203-2208.
[23]蔡美峰,王金安,王双红.玲珑金矿深部开采岩体能量分析与岩爆综合预测[J].岩石力学与工程学报,2001,20(1):38-42.
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