震区岩质边坡地震稳定性影响因素敏感性分析
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摘要
结合湖南省对口援建项目——理县至小金公路工程中的豹子嘴岩质边坡,依据正交试验设计原理,以FLAC3D数值计算法和数理统计为手段,对影响岩质边坡地震稳定性的5种因素参数进行了敏感性分析.通过极差分析和敏感性趋势图,得出了岩质边坡地震稳定性对各影响因素的敏感程度,对震区岩质边坡设计和施工提供了理论依据.
Combining with the Baozizui rock slope in the highway project of Lixian to Xiaojin for rebuilding project supported by Hunan Province and according to orthogonal design principle,five types of factorial parameters that influence the seismic stability of rock slope are analyzed in sensitivity by means of FLAC3D numerical calculation and mathematical statistics.Based on different analysis and the sensitivity analysis trend chart,the sensitivity degree of the seismic stability of rock slope to the five factors is deduced to provide a theoretical basis for the design and construction of rock slope in earthquake region.
Combining with the Baozizui rock slope in the highway project of Lixian to Xiaojin for rebuilding project supported by Hunan Province and according to orthogonal design principle,five types of factorial parameters that influence the seismic stability of rock slope are analyzed in sensitivity by means of FLAC3D numerical calculation and mathematical statistics.Based on different analysis and the sensitivity analysis trend chart,the sensitivity degree of the seismic stability of rock slope to the five factors is deduced to provide a theoretical basis for the design and construction of rock slope in earthquake region.
引文
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[8]黄润秋,李为乐.“5.12”汶川大地震触发地质灾害的发育分布规律研究[J].岩石力学与工程学报,2008,27(12):2585-2592.(HUANG Run-qiu,LI Wei-le.Research on development and distribution rules ofgeohazards induced by Wenchuan Earthquake on12th may,2008[J].Chinese Journal of Rock Mechan-ics and Engineering,2008,27(12):2585-2592.(inChinese))
[9]Keefer D V.Landslides caused by earthquakes[J].Geological Society of America Bulletin,1984,95(4):406-421.
[10]Wilson R C,Keefer D K.A real limits of earth-quake-induced Landsliding[A].Evaluating Earth-quake Hazards in the Los Angeles Region[C].Washington,D C:US Government Printing Office,1985:316-345.
[2]陈希孺.数理统计引论[M].北京:科学出版社,1997.(CHEN Xi-ru.Statistics introduction[M].Bei-jing:Science Press,1997.(in Chinese))
[3]Kuhlemeyer R L,Lysmer J.Finite element methodaccuracy for wave propagation problems[J].Journalof the Soil Mechanic Sand Foundations Division,ASCE,1973,99(5):421-427.
[4]Itasca Consulting Group Inc.FLAC-3D(Fast La-grangian Analysis of Continua in 3Dimensions),ver-sion 2.00,users manual(V)[R].[s.l.]:Itasca Con-sulting Group Inc,1997.
[5]黄理兴,陈奕柏.我国岩石动力学研究状况与发展[J].岩石力学与工程学报,2003,22(11):1881-1886.(HUANG Li-xing,CHEN Yi-bo.Rock dynam-ics in China:Past,present and future[J].ChineseJournal of Rock Mechanics and Engineering,2003,22(11):1881-1886.(in Chinese))
[6]张旭辉,龚晓南,徐日庆.边坡稳定影响因素敏感性的正交法计算分析[J].中国公路学报,2003,16(1):36-39.(ZHANG Xu-hui,GONG Xiao-nan,XU Ri-qing.Orthogonality analysis method of sensibility onfactor of slope stability[J].China Journal of High-way and Transport,2003,16(1):36-39.(in Chi-nese))
[7]李海波,蒋会军,赵坚,等.动荷载作用下岩体工程安全的几个问题[J].岩石力学与工程学报,2003,22(11):1887-1891.(LI Hai-bo,JIANG Hui-jun,ZHAO Jian,et al.Some problems about safty analy-sis of rock engineering under dynamic load[J].Chi-nese Journal of Rock Mechanics and Engineering,2003,22(11):1887-1891.(in Chinese))
[8]黄润秋,李为乐.“5.12”汶川大地震触发地质灾害的发育分布规律研究[J].岩石力学与工程学报,2008,27(12):2585-2592.(HUANG Run-qiu,LI Wei-le.Research on development and distribution rules ofgeohazards induced by Wenchuan Earthquake on12th may,2008[J].Chinese Journal of Rock Mechan-ics and Engineering,2008,27(12):2585-2592.(inChinese))
[9]Keefer D V.Landslides caused by earthquakes[J].Geological Society of America Bulletin,1984,95(4):406-421.
[10]Wilson R C,Keefer D K.A real limits of earth-quake-induced Landsliding[A].Evaluating Earth-quake Hazards in the Los Angeles Region[C].Washington,D C:US Government Printing Office,1985:316-345.
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