川藏铁路帕隆藏布段冰川沉积物分布及破坏模式

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• 英文论文题名：The Distribution and Failure Mechanism of Glacial Accumulation along the Palongzangbu Section of the Sichuan-Tibet Railway
• 论文作者：冯涛 ; 蒋良文 ; 孙春卫 ; 赵平 ; 巫锡勇
• 英文论文作者：Feng Tao ; Jiang Liangwen ; Sun Chunwei ; Zhao Ping ; Wu Xiyong ; China Railway Eryuan Engineering Group Co.Ltd ; School of Geosciences and Environmental Engineering ; Southwest Jiaotong University
• 年：2016
• 作者机构：中铁二院工程集团有限责任公司;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 ; 帕隆藏布河谷 ; 冰川沉积物 ; 破坏模式
• 英文论文关键词：Sichuan-Tibet railway ; the Palongzangbu valley ; glacial accumulation ; failure mechanism
• 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：P343.6;U212.23
• 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：9
• 文件大小：1283k
• 原文格式：O
• 会议级别：全国

摘要

川藏铁路帕隆藏布段发育有我国最大的现代海洋性冰川群,沿线冰川沉积物分布广泛,也是该段地质灾害发育的重要因素。帕隆藏布流域冰川分布及发育规律,决定了其冰川沉积物堆积体的分布和堆积特征。对帕隆藏布流域冰川特征数据的统计分析结果显示,北侧冰川发育规模要远大干南侧,由于两岸边坡朝向差异及水文气象条件的影响,主河谷北岸冰川发育规模小于南岸,且上游和下游河谷的冰川发育较少,而中部地区冰川发育规模较大。冰川发育规模及其赋存环境的差异性造成区域冰川沉积物的物质组成、堆积特征的不同。将该区域冰川沉积物堆积体划分为:原生冰碛体、冰水堆积体和混杂堆积体3种类型,分析得到3类冰川沉积物堆积体在该段线路上的分布情况及其破坏模式。
The Sichuan-Tibet Railway Palongzangbu segment cuts across China's largest modern marine glaciers,where the glacial deposits are widely distributed.That is also an important factor in the development of geological disasters in this area.The mechanism of distribution and development of glacier determines the characteristics of distribution and accumulation of glacial deposits in Palongzangbu basin.Statistical analysis of the characteristics data of glacier in Palongzangbu basin shows that the scale of the glacier on the north part is far larger than that on the south,and due to the influence of the side slope toward the difference and the hydrological and meteorological conditions,the scale of north glacier in the main valley is smaller than that in south,and the glacier located upstream and downstream is relatively smaller than that on the central part.The difference of the scale of glacier and its occurrence environment develops the different material composition and accumulation characteristics of the regional glacial sediment.It classify the glacial sediments accumulation into three types:primary moraine accumulation,moraine outwash accumulation and farraginous accumulation,and analyse the distribution of three types of glacial sediment accumulation along the railway and its failure mechanism.

引文

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