铁路顺层路堑边坡稳定性分析方法研究
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摘要
研究目的:铁路岩质边坡稳定性分析一直是山区铁路工程建设最为关心的难点问题之一。近年来,顺层岩质路堑边坡失稳造成的工程事故屡有发生,滑动面的位置往往不能够准确定位,缺乏一套科学合理的评价方法。为此,提出一种能够考虑滑体沿不同岩层界面及纵向裂隙发生滑动的稳定性分析方法。研究结论:采用一种基于平面坐标系统的双向滑动面搜索模式,该模型考虑了铁路路堑边坡的多级平台几何特征和岩层产状,逐一对潜在的滑动体进行分析,可实现对顺层岩质边坡最小安全系数的搜索过程。同时,为提高铁路路基工程技术人员对岩质路堑边坡稳定性的分析效率,采用C#作为开发工具,编制稳定性分析的相关软件,首次实现顺层岩质边坡双向结构面自动搜索的功能。
Research purposes: The stability analysis of the railway rock slope is one of the most concerned problems in railway construction in mountain area.In recent years,the engineering accidents caused by the unstability of the bedding rock cutting slope have occurred frequently because the position of the sliding surface can't be accurately allocated due to being short of the scientific and rational evaluation method.This paper presents a analysis method for the stability of the sliding body along the different rock boundaries and longitudinal cracks. Research conclusions:A bi-direction searching model based on plane coordinate system is established.This model considers the geometric features of the multiple level platforms of the cutting slope and the rock stratum attitude,and it can be used to analyze the hidden sliding body one by one and search for the minimum safety coefficient about slope stability.In addition,in order to improve the analysis efficiency of the stability of the rock cutting slope,an professional software is developed by using C # programming tools to realize the automatic searching for the bi-directional structure surface of the bedding rock slope.
Research purposes: The stability analysis of the railway rock slope is one of the most concerned problems in railway construction in mountain area.In recent years,the engineering accidents caused by the unstability of the bedding rock cutting slope have occurred frequently because the position of the sliding surface can't be accurately allocated due to being short of the scientific and rational evaluation method.This paper presents a analysis method for the stability of the sliding body along the different rock boundaries and longitudinal cracks. Research conclusions:A bi-direction searching model based on plane coordinate system is established.This model considers the geometric features of the multiple level platforms of the cutting slope and the rock stratum attitude,and it can be used to analyze the hidden sliding body one by one and search for the minimum safety coefficient about slope stability.In addition,in order to improve the analysis efficiency of the stability of the rock cutting slope,an professional software is developed by using C # programming tools to realize the automatic searching for the bi-directional structure surface of the bedding rock slope.
引文
[1]李守定,李晓,吴疆,等.大型基岩顺层滑坡滑带形成演化过程与模式[J].岩石力学与工程学报,2007(12):2473-2480.Li Shouding,Li Xiao,Wu Jiang,etc.EvolutionProcess and Pattern of Sliding Zone in LargeConsequent Bedding Rock Landslide[J].ChineseJournal of Rock Mechanics and Engineering,2007(12):2473-2480.
[2]王恭先.滑坡防治工程措施的国内外现状[J].中国地质灾害与防治学报,1998(1):1-9.Wang Gongxian.Present Situation of EngineeringMeasures for Preventing and Controlling Landslide inChina and Abroad[J].The Chinese Journal ofGeological Hazard and Control,1998(1):1-9.
[3]蒋忠信.路堑高边坡的工程和环境问题及对策[J].铁道工程学报,2005(5):39-42.Jiang Zhongxin.Engineering and EnvironmentalProblems and Countermeasures of High Cutting Slope ofSubgrade[J].Journal of Railway Engineering Society,2005(5):39-42.
[4]陈祖煜,汪小刚,杨健,等.岩质边坡稳定分析——原理、方法、程序[M].北京:中国水利水电出版社,2005.Chen Zuyu,Wang Xiaogang,Yang Jian,etc.RockSlope Stability Analysis——theory,Methods andPrograms[M].Beijing:Chinese Water Conservancyand Hydroelectricity Publishing House,2005.
[5]白云峰.顺层岩质边坡稳定性及工程设计研究[D].成都:西南交通大学,2005.Bai Yunfeng.Study on Stability and Designing ofConsequent Bedding Rock Cut Slope[D].Chengdu:Southwest Jiaotong University,2005.
[6]石豫川.山区高等级公路层状岩质边坡稳定性HSMR快速评价体系研究[D].成都:成都理工大学,2007.Shi Yuchuan.Research of HSMR Fast EvaluationSystem for Stratiform Rock Slope of High-GradeHighway in Mountain Area[D].Chengdu:ChengduUniversity of Technology,2007.
[7]李治广.单滑动面岩质边坡稳定性分析及治理研究[D].北京:中国地质大学,2007.Li Zhiguang.Study on the Stability Analysis andTreatment of Single Sliding Surface Rock Slope[D].Beijing:China University of Geosciences,2007.
[8]李道明.顺层岩质边坡稳定性分析与防治研究[D].武汉:武汉理工大学,2007.Li Daoming.Research on the Preventions Measures andthe Stability Analysis of Rock Slope with Bedding Planes[D].Wuhan:Wuhan University of Technology,2007.
[9]李海波,肖克强,刘亚群.地震荷载作用下顺层岩质边坡安全系数分析[J].岩石力学与工程学报,2007(12):2385-2394.Li Haibo,Xiao Keqiang,Liu Yaqun.Factor of SafetyAnalysis of Bedding Rock Slope under Seismic Load[J].Chinese Journal of Rock Mechanics andEngineering,2007(12):2385-2394.
[10]成永刚,王玉峰.层面倾角对顺层岩质滑坡贡献率研究[J].岩土力学,2011(12):3708-3712.Cheng Yonggang,Wang Yufeng.Research onContribution Rate for Dip Angle of Bedding Landslide[J].Rock and Soil Mechanics,2011(12):3708-3712.
[2]王恭先.滑坡防治工程措施的国内外现状[J].中国地质灾害与防治学报,1998(1):1-9.Wang Gongxian.Present Situation of EngineeringMeasures for Preventing and Controlling Landslide inChina and Abroad[J].The Chinese Journal ofGeological Hazard and Control,1998(1):1-9.
[3]蒋忠信.路堑高边坡的工程和环境问题及对策[J].铁道工程学报,2005(5):39-42.Jiang Zhongxin.Engineering and EnvironmentalProblems and Countermeasures of High Cutting Slope ofSubgrade[J].Journal of Railway Engineering Society,2005(5):39-42.
[4]陈祖煜,汪小刚,杨健,等.岩质边坡稳定分析——原理、方法、程序[M].北京:中国水利水电出版社,2005.Chen Zuyu,Wang Xiaogang,Yang Jian,etc.RockSlope Stability Analysis——theory,Methods andPrograms[M].Beijing:Chinese Water Conservancyand Hydroelectricity Publishing House,2005.
[5]白云峰.顺层岩质边坡稳定性及工程设计研究[D].成都:西南交通大学,2005.Bai Yunfeng.Study on Stability and Designing ofConsequent Bedding Rock Cut Slope[D].Chengdu:Southwest Jiaotong University,2005.
[6]石豫川.山区高等级公路层状岩质边坡稳定性HSMR快速评价体系研究[D].成都:成都理工大学,2007.Shi Yuchuan.Research of HSMR Fast EvaluationSystem for Stratiform Rock Slope of High-GradeHighway in Mountain Area[D].Chengdu:ChengduUniversity of Technology,2007.
[7]李治广.单滑动面岩质边坡稳定性分析及治理研究[D].北京:中国地质大学,2007.Li Zhiguang.Study on the Stability Analysis andTreatment of Single Sliding Surface Rock Slope[D].Beijing:China University of Geosciences,2007.
[8]李道明.顺层岩质边坡稳定性分析与防治研究[D].武汉:武汉理工大学,2007.Li Daoming.Research on the Preventions Measures andthe Stability Analysis of Rock Slope with Bedding Planes[D].Wuhan:Wuhan University of Technology,2007.
[9]李海波,肖克强,刘亚群.地震荷载作用下顺层岩质边坡安全系数分析[J].岩石力学与工程学报,2007(12):2385-2394.Li Haibo,Xiao Keqiang,Liu Yaqun.Factor of SafetyAnalysis of Bedding Rock Slope under Seismic Load[J].Chinese Journal of Rock Mechanics andEngineering,2007(12):2385-2394.
[10]成永刚,王玉峰.层面倾角对顺层岩质滑坡贡献率研究[J].岩土力学,2011(12):3708-3712.Cheng Yonggang,Wang Yufeng.Research onContribution Rate for Dip Angle of Bedding Landslide[J].Rock and Soil Mechanics,2011(12):3708-3712.
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