川藏铁路三江并流区不良地质分区特征研究
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- 英文论文题名：Defective Geological Stability Division and Characteristics in Three Parallel River Region of the Sichuan-Tibet Railway
- 论文作者：蒋钰峰 ; 吴光 ; 赵志明
- 英文论文作者：Jiang Yufeng ; Wu Guang ; Zhao Zhiming ; Faculty of Geosciences and Environmental Engineering of Southwest Jiaotong University
- 年：2016
- 作者机构：西南交通大学地球科学与环境工程学院;
- 论文关键词：川藏铁路 ; 夷平面 ; 工程地质选线 ; 信息量法
- 英文论文关键词：the Sichuan-Tibet railway ; deplanation plains ; engineering geological route selection ; the informational method
- 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：U212.22
- 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：10
- 文件大小：2607k
- 原文格式：O
- 会议级别：全国
摘要
川藏铁路在穿越金沙江、澜沧江、怒江三江并流的南北向构造带时,受到复杂地质条件的影响。铁路工程面临地形高差大、地质灾害规模大、地质构造活动强等一系列工程地质问题。基于山区夷平面概念分析不同高程区域不良地质发育和分布特征,提出了高原夷平面、高原盆地夷平面和三江侵蚀面以及高原—高原盆地夷平面过渡带和高原盆地夷平面—三江侵蚀面过渡带的"三面两带"分区思路,根据不同的江河流域,在剖面上划分出五个区段模型。进而采用信息量分析技术研究了线路区域地质灾害的工程风险性。夷平面间的过渡带是地质灾害发育的高风险区,为川藏铁路综合选线提供了工程地质平面剖面选线思想。
Due to the complex geological conditions,the Sichuan-Tibet railway faces a series of engineering geology problems such as large topographic relief,large-scale geological hazards,strong geological tectonic activity and so on,when it crosses the north-south Three Parallel River Region of the Jinsha River,Lancang River and Nujiang River.At different elevation,the geological disasters and distribution characteristics are analyzed based on the concept of deplanation plains in mountain area.The N-S mountain area,with the characteristics of high altitude and high gap in altitude,develop three-level deplanation plains and two regions.Five models of different zone are divided in profile based on different river's basin.And then the engineering risk of geologic hazard in the railway area is investigated by using the informational method.The results show that the transitional zones between the plains are of high risks for geological hazard development.
Due to the complex geological conditions,the Sichuan-Tibet railway faces a series of engineering geology problems such as large topographic relief,large-scale geological hazards,strong geological tectonic activity and so on,when it crosses the north-south Three Parallel River Region of the Jinsha River,Lancang River and Nujiang River.At different elevation,the geological disasters and distribution characteristics are analyzed based on the concept of deplanation plains in mountain area.The N-S mountain area,with the characteristics of high altitude and high gap in altitude,develop three-level deplanation plains and two regions.Five models of different zone are divided in profile based on different river's basin.And then the engineering risk of geologic hazard in the railway area is investigated by using the informational method.The results show that the transitional zones between the plains are of high risks for geological hazard development.
引文
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[4]张广泽,蒋良文,宋章,等.横断山区川藏线山地灾害和地质选线原则研究[J].铁道工程学报,2016,33(2):21-24.Zhang Guangze,Jiang Liangwen,Song Zhang,et al.Research on the mountain disaster and geological alignment fundamental of Sichuan-Tibet railway running through N-S mountain area[J].Journal of Railway Engineering Society,2016,33(2):21-24.
[5]宋章,张广泽,蒋良文,等.川藏铁路主要地质灾害特征及地质选线探析[J].铁道标准设计,2016(1):14-19.Song Zhang,Zhang Guangze,Jiang Liang-wen,et al.Analysis of the characteristics of major geological disasters and geological alignment of Sichuan-Tibet railway[J].Railway Standard Design,2016(1):14-19.
[6]崔之久,李德文,伍永秋,等.关于夷平面[J].科学通报,1998,43(17):1794-1804.Cui Zhijiu,Li Dewen,Wu Yongqiu,et al.Comment on the Pla-nation surface[J].Chinese Science Bulletin,1998,43(17):1794-1804.
[7]李吉均,文世宣,张青松,等.青藏高原隆起的时代、幅度和形式的探讨[J].中国科学,1979,(6):608-616.Li Jijun,Wen Shixuan,Zhang Qingsong,et al.The discussionabout rising age,scale and process of Tibetan Plateau[J].Sciencein Chinese,1979,(6):608-616.
[8]潘保田,高红山,李吉均.关于夷平面的科学问题——兼论青藏高原夷平面[J]_地理科学,2002,22(5):520-526.Pan Baotian,Gao Hongshan,Li Jijun.On problems of planation surface—A discussion on the planation surfacein QinghaiXizang plateau[J].Scientia Geographica Sinica,2002,22(5):520-526.
[9]冯金良,崔之久,朱立平,等.夷平面研究评述[J].山地学报,2005,23(1):1-13.Feng Jinliang,Cui Zhijiu,Zhu Liping,et al,Review on the planation surface[J].Journal of Mountain Science,2005,23(1):1-13.
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