JRC-JCS模型抗剪强度估算的平均斜率法
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摘要
结构面对工程岩体的稳定性有着决定性的影响,结构面的抗剪强度参数是分析岩体稳定的关键的参数。本文回顾了结构面抗剪强度估算的JRC-JCS模型及其估算方法,提出了可快速估算结构面抗剪强度参数的平均斜率法,并通过对比分析阐明平均斜率法的优越性。
Stability of rock engineering is greatly affected by joints.The shear strength of the joints is a controlling parameter in analysis of rock mass stability.In this paper,authors presented an average slope method for a quick and an accurate estimate of shear strength of joints,based on review of the JRC-JCS model and several other existing methods.Its advantages over other methods were demonstrated by case studies.
Stability of rock engineering is greatly affected by joints.The shear strength of the joints is a controlling parameter in analysis of rock mass stability.In this paper,authors presented an average slope method for a quick and an accurate estimate of shear strength of joints,based on review of the JRC-JCS model and several other existing methods.Its advantages over other methods were demonstrated by case studies.
引文
[1]G rasselli G,Egger P.Constitutive law for the shear strength ofrock joints based on three-d im ensional surface param eters[J].Int J Rock M ech M in Sci Geom ech Abstr,2003,(40):25~40.
[2]N.Barton,N.R..Choubey.V.The shear strength of rock jointsin theory and practice[J].Rock M echan ics,1977,10(1-2):1~54.
[3]Barton.N.R.Review of a new shear strength criterion for rockjoints[J].Engineering Geology,E lsevier,1977,(7):287~332.
[4]Barton.N.R,Band is.S..Som e effects of scale on the shearstrength of joints[J].Int.J.Rock M ech.M in.Sci&Geom ech,1980,(17):69~73.
[5]Hoek.E and B ray.J.W.Rock slope engineering[M].3 rd Ed i-tion.The Institution ofM in ing and M etallurgy,London,1981.
[6]杜时贵,郭宵,颜育仁.JRC-JCS模型在抗剪强度参数求值中的应用[J].金华职业技术学院学报,2004,4(1):1~4.Du Sh igu i,Guo X iao,Yan Yuren.Application of JRC-JCS modelin estimating param eters of rock joint shear strength.Journal ofJinhua College of Profession and Technology,2004,4(1):1~4.
[7]杜时贵.岩体结构面的工程性质[M].北京:地震出版社,1999.Du Sh igu i.Engineering properties of rock joint.Beijing:Seismo-logical Press.1999.
[8]同济大学数学教研室.高等数学[M].北京:高等教育出版社,1993。Mathematical teach ing and research room ofTongjiUn iversity.Ad-vanced Mathematics.Beijing:H igher Education Press,1993.
[9]昝月稳,俞茂宏,吉嶺充俊.一种适合于岩石材料的双剪模型[J].工程地质学报,2004,12(3):274~279.Zan Yuewen,Yu Maohong,M itsutosh i Yosh im ine.A tw in-shearmodel for rock materials.Journal of Engineering Geology,2004,12(3):274~279.
[10]唐良琴,聂德新,任光明.软弱结构面粒度成分与抗剪强度参数的关系探讨[J].工程地质学报,2003,11(1):143~147.Tang L iangq in,N ie D exin,Ren Guangm ing.D iscussion on therelational between granu lom etric composition and shear strengthparam eter ofweak structural plane.Journal of Engineering Geolo-gy,2003,11(1):143~147.
[2]N.Barton,N.R..Choubey.V.The shear strength of rock jointsin theory and practice[J].Rock M echan ics,1977,10(1-2):1~54.
[3]Barton.N.R.Review of a new shear strength criterion for rockjoints[J].Engineering Geology,E lsevier,1977,(7):287~332.
[4]Barton.N.R,Band is.S..Som e effects of scale on the shearstrength of joints[J].Int.J.Rock M ech.M in.Sci&Geom ech,1980,(17):69~73.
[5]Hoek.E and B ray.J.W.Rock slope engineering[M].3 rd Ed i-tion.The Institution ofM in ing and M etallurgy,London,1981.
[6]杜时贵,郭宵,颜育仁.JRC-JCS模型在抗剪强度参数求值中的应用[J].金华职业技术学院学报,2004,4(1):1~4.Du Sh igu i,Guo X iao,Yan Yuren.Application of JRC-JCS modelin estimating param eters of rock joint shear strength.Journal ofJinhua College of Profession and Technology,2004,4(1):1~4.
[7]杜时贵.岩体结构面的工程性质[M].北京:地震出版社,1999.Du Sh igu i.Engineering properties of rock joint.Beijing:Seismo-logical Press.1999.
[8]同济大学数学教研室.高等数学[M].北京:高等教育出版社,1993。Mathematical teach ing and research room ofTongjiUn iversity.Ad-vanced Mathematics.Beijing:H igher Education Press,1993.
[9]昝月稳,俞茂宏,吉嶺充俊.一种适合于岩石材料的双剪模型[J].工程地质学报,2004,12(3):274~279.Zan Yuewen,Yu Maohong,M itsutosh i Yosh im ine.A tw in-shearmodel for rock materials.Journal of Engineering Geology,2004,12(3):274~279.
[10]唐良琴,聂德新,任光明.软弱结构面粒度成分与抗剪强度参数的关系探讨[J].工程地质学报,2003,11(1):143~147.Tang L iangq in,N ie D exin,Ren Guangm ing.D iscussion on therelational between granu lom etric composition and shear strengthparam eter ofweak structural plane.Journal of Engineering Geolo-gy,2003,11(1):143~147.
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