川藏线新都桥地区季节性粗颗粒冻土边坡调查及监测分析
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- 英文论文题名：Investigation and Monitoring Analysis of Seasonal Coarse Grained Frozen Soil Slope along the Sichuan-Tibet Railway In Xinduqiao Area
- 论文作者：王栋 ; 朱磊 ; 王子江 ; 谢强 ; 赵文
- 英文论文作者：Wang Dong ; Zhu Lei ; Wang Zijiang ; Xie Qiang ; Zhao Wen ; China Railway Eryuan Engineering Group Co.Ltd ; Southwest Jiaotong University
- 年：2016
- 作者机构：中国中铁二院工程集团有限责任公司;西南交通大学;
- 论文关键词：粗颗粒冻土边坡 ; 调查分析 ; 破坏模式 ; 现场监测 ; 防治措施
- 英文论文关键词：coarse grained frozen soil slopes ; investigation and monitoring analysis ; failure modes ; field monitoring ; prevention and control measures
- 会议召开时间：2016-10-14
- 会议录名称：“川藏铁路建设的挑战与对策”2016学术交流会论文集
- 语种：中文
- 分类号：U213.13
- 学会代码：ZGTD
- 会议名称：“川藏铁路建设的挑战与对策”2016学术交流会
- 会议地点：中国四川成都
- 主办单位：中国铁道学会、中国铁道学会工程分会、中国中铁股份有限公司、中铁二院工程集团有限责任公司
- 学会名称：中国铁道学会
- 页数：7
- 文件大小：1433k
- 原文格式：O
- 会议级别：全国
摘要
本文通过对拟建川藏铁路新都桥地区32处季节性粗颗粒冻土边坡的野外调查和现场监测,研究了季节性粗颗粒冻土边坡的破坏模式,主要分为剥落、滑塌、冲刷和热熔滑塌4种破坏类型。通过对边坡稳定性影响因素的统计分析,确定了边坡稳定性的主要影响因素,并提出了相应的措施建议,建议边坡开挖高度不宜超过4m,坡比不易大干1:1.75,对后期的铁路沿线边坡的勘查设计具有指导性的意义。
In this paper,the field investigation and monitoring of 32 seasonal coarse grained frozen soil slopes along Sichuan-Tibet railway in Xinduqiao area were carried out.The failure modes of seasonal coarse grained frozen soil slope are studied,which are mainly divided into spalling,sliding,erosion and thermal melting collapse.Through the statistical analysis on factors which affect the stability of slope,the main factors are confirmed and corresponding prevention and control measures and suggestions are put forward.Proposed slope excavation height should not be more than 4m,the slope ratio should not be greater than 1:1.75.These suggestions have guiding significance for the later slope exploration design along the railway slope.
In this paper,the field investigation and monitoring of 32 seasonal coarse grained frozen soil slopes along Sichuan-Tibet railway in Xinduqiao area were carried out.The failure modes of seasonal coarse grained frozen soil slope are studied,which are mainly divided into spalling,sliding,erosion and thermal melting collapse.Through the statistical analysis on factors which affect the stability of slope,the main factors are confirmed and corresponding prevention and control measures and suggestions are put forward.Proposed slope excavation height should not be more than 4m,the slope ratio should not be greater than 1:1.75.These suggestions have guiding significance for the later slope exploration design along the railway slope.
引文
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[2]武鹤,刘春龙,葛琪.寒区土质边坡冻融滑塌影响因素的研究[J].水利与建筑工程学报,2015,01:1-5.Wu He,Liu Chunlong,Ge Qi.Research on influential factors of freezing thawing slumping in highway of cold area[J].Journal of Water Resources and Architectural Engineering,2015,01:1-5.
[3]杜兆成,孙瑛琳,蒋大恩.季节性冻土区路基土的冻胀特性分析[J].长春工程学院学报,2006,7(2):17-20.Du Zhaocheng,Sun Yinglin,Jiang Da'en.The characteristic analysis on frost heaving of subgrade in the seasonal frozen ground region[J].Journal of Changchun Institute Technology,2006,7(2):17-20.
[4]夏琼,杨有海,窦顺.兰新铁路路基冻胀特征及冻害整治措施研究[J].冰川冻土,2011,33(1):164-170.Xia Qiong,Yang Youhai,Dou Shun.Frost heaving characteristics of Lanzhou-Xinjiang railway subgrade and the treatment of frost damage[J].Journal of Glaciology and Geocryology,2011,33(1):164-170.
[5]霍凯成,黄继业,罗国荣.路基冻胀机制及冻害防范整治措施探讨[J].岩石力学与工程学报,2002,21(7):1099-1103.Huo Kaicheng,Huang Jiye,Luo Guorong.On mechanism of freeze-heave and its treatment in roadbeds[J].Chinese Journal of R ock Mechanics and Engineering,2002,21(7):1099-1103.