岩爆的复合能量动力学机理
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摘要
发生岩爆受多种复杂因素控制。如何从其现场实录出发,寻找其本质,是一个极其困难的工作。通过对各种岩爆能量机理分析,提出了基于复合能量为根本的岩体快速破裂后能量叠加引起工程围岩体动力破坏的岩爆发生机理。依据岩体裂纹快速起裂的能量判据,分析了裂纹开裂、扩展、贯通到煤岩运动的准静态到动态的过程。从岩体卸荷、流变的特性出发,阐述了基于复合能量条件下的止裂技术在应用于防治岩爆时的理论基础。
Rockburst occurs due to many complex factors.It is extremely difficult to find its essential peculiarity based on in-situ phenomena.The paper,based on the analysis of various rockburst energy mechanisms,proposes a rockburst mechanism based on compound energy,which indicates that the energy superposition after a rapid rupture of rock mass causes the dynamic fracture of engineering wall rock.The process from quasi static to dynamic coal rock motion involving crack initiation,extension and running-through is analyzed with the criteria of energy involved in the rapid crack initiation of rock mass.The theoretical basis for the application of the crack arresting technology based on compound energy conditions in rockburst control is described from the rock mass characters of unloading and rheology.
Rockburst occurs due to many complex factors.It is extremely difficult to find its essential peculiarity based on in-situ phenomena.The paper,based on the analysis of various rockburst energy mechanisms,proposes a rockburst mechanism based on compound energy,which indicates that the energy superposition after a rapid rupture of rock mass causes the dynamic fracture of engineering wall rock.The process from quasi static to dynamic coal rock motion involving crack initiation,extension and running-through is analyzed with the criteria of energy involved in the rapid crack initiation of rock mass.The theoretical basis for the application of the crack arresting technology based on compound energy conditions in rockburst control is described from the rock mass characters of unloading and rheology.
引文
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[5]邵鹏,张勇,贺永年.岩爆发生的随机共振机制[J].煤炭学报,2004,29(6):670-671.
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[8]Feit G N,Malinnikova O N,Zykov V S,et al.Prediction of Rock-burst and Sudden Outburst Hazard on the Basis of Estimate ofRock-mass Energy[J].Journal of Mining Science.2002,38(1):61-63.
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[14]邓增杰,周静恩.工程材料的断裂与疲劳[M].北京:机械工业出版社,1995.
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[16]周维垣.高等岩石力学[M].北京:水利水电出版社,1990.
[17]郑雨天.岩石力学的弹塑粘性理论基础[M].北京:煤炭工业出版社,1988.
[18]何川,汪波,吴德兴.苍岭隧道岩爆特征与影响因素的相关性及防治措施研究[J].水文地质工程地质,2007,3:25-28.
[19]唐春安.岩石破裂过程的灾变[M].北京:煤炭工业出版社,1993.
[2]潘长良,谢学斌.岩爆预测预报方法[J].有色矿冶,1997,13(6):3-5.
[3]Brauner G.Rockbursts in coal mines and their prevention[M].Rotterdam:AA Balkema,1994.
[4]戴俊.岩石动力力学特性与爆破理论[M].北京:冶金工业出版社.2002.
[5]邵鹏,张勇,贺永年.岩爆发生的随机共振机制[J].煤炭学报,2004,29(6):670-671.
[6]徐则民,吴培关,王苏达,等.岩爆过程释放的能量分析[J].自然灾害学报,2003,12(3):107-108.
[7]刘剑.岩体在冲击爆炸下的破坏和岩爆的预测及防治[J].青海交通科技,2004,5:35.
[8]Feit G N,Malinnikova O N,Zykov V S,et al.Prediction of Rock-burst and Sudden Outburst Hazard on the Basis of Estimate ofRock-mass Energy[J].Journal of Mining Science.2002,38(1):61-63.
[9]曹平,潘长良,冯涛,等.深井硬岩实录与特征分析[C]//第六届全国岩石与力学工程学术大会论文集.北京:中国科学技术出版社.2000.
[10]徐林生.卸荷状态下岩爆岩石力学试验[J].重庆交通学院学报,2003,22(1):3-4.
[11]李连贵,徐文胜,许迎年,等.岩爆模拟材料研制及模拟试验分析[J].华中科技大学学报.2001,29(6):81-82.
[12]葛修润.岩土损伤力学宏细观试验研究[M].北京:科学出版社,2004.
[13]尤明庆.岩样试验强度与变形破坏过程[M].北京:地震出版社,2000.
[14]邓增杰,周静恩.工程材料的断裂与疲劳[M].北京:机械工业出版社,1995.
[15]范天佑.断裂动力学原理与应用[M].北京理工大学出版社,2006.
[16]周维垣.高等岩石力学[M].北京:水利水电出版社,1990.
[17]郑雨天.岩石力学的弹塑粘性理论基础[M].北京:煤炭工业出版社,1988.
[18]何川,汪波,吴德兴.苍岭隧道岩爆特征与影响因素的相关性及防治措施研究[J].水文地质工程地质,2007,3:25-28.
[19]唐春安.岩石破裂过程的灾变[M].北京:煤炭工业出版社,1993.
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