隧道穿越断层破碎带塌方失稳的突变模型研究
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摘要
建立了隧道穿越断层破碎带的力学模型,根据所建立的力学模型,利用突变理论建立了耦合地下水、系统几何参数、介质刚度等因素的尖点突变模型来进行隧道穿越断层破碎带的稳定性突变分析,并建立了隧道穿越断层破碎带突发失稳的判据。
A mechanical model was set up for the tunnel going through a fault fracture zone,based on which cusp catastrophe model was established by using catastrophe theory coupling with factors of underground water,system geometric parameters and medium stiffness,so as to analyze the catastrophe of stability for the tunnel going through a fault fracture zone.This also set a criterion for the disability of fault fracture zone with tunnel going through.
A mechanical model was set up for the tunnel going through a fault fracture zone,based on which cusp catastrophe model was established by using catastrophe theory coupling with factors of underground water,system geometric parameters and medium stiffness,so as to analyze the catastrophe of stability for the tunnel going through a fault fracture zone.This also set a criterion for the disability of fault fracture zone with tunnel going through.
引文
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[2]张业成,张梁.正在兴起的地质灾害风险评价.见:当代地质科学进展(1995)[M].武汉:中国地质大学出版社,1996.
[3]William J Petak,Arthur A Atkission.自然灾害风险评价与减灾对策[M].向立云等译.北京:地震出版社,1993.
[4]Wiecaorek G F,Morgan B A,Campbell R H.Debris FlowHazards inThe Blue Ridge of Central Virginia[J].Environmental&EngineeringGeoscience,2000,6(1):3-23.
[5]Sung O Choi,Hee-Soon Shin.Stability Analysis of a Tunnel Excava-ted in a Weak Rock Mass and the Optimal Supporting System Design[J].Int J Rock Mech Min Sci,2007,41(3):1-6.
[6]Shin,Jong-Ho.Model testing for pipe-reinforced tunnel heading in agranular soil[J].Tunneling and Underground Space Technology,2008,23:241-250.
[7]张业成,胡景江,张春山,等.中国地质灾害危险性分析与灾变区划[J].海洋地质与第四纪地质,1995,15(3):55-67.
[8]罗元华,张梁,张业成,等.地质灾害风险评估方法[M].北京:地质出版社,1998.
[9]Henley S.Catastrophe Theory Model in Geology[J].Math Geo,1976,8(6):649-655.
[10]John M Cubitt,Brian Shaw.The Geological Implication of Steady-state Mechanisms in Catastrophe Theory[J].Math Geo,1976,8(6):657-662.
[11]秦四清,张倬元,王士天,等.非线形工程地质学导引[M].成都:西南交通大学出版社,1993.
[12]黄润秋,许强.工程地质广义系统科学分析原理及应用[M].北京:地质出版社,1997.
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