拉日线雅鲁藏布江峡谷区主要地质问题及对策

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Abstract Research purposes:The canyon area in the section between the Semai and Dazhuka of the Lhasa － XiGAZE Railway is located in the giant Brahmaputra fault zone，with the developed and complex unfavorable geological phenomenon，such as the landslide，scattering，avalanches，rock heap，rock falling，debris flow and geothermal．Through the analysis of these main geological problems，the control programs on the unfavorable geological conditions were presented for providing the reference to the railway alignment．

Research conclusions: The railway alignment and the setting up of projects of the Lhasa － Xigaze Railway were seriously impacted by the complex and unfavorable topographical and geological conditions in the Brahmaputra canyon area．However，Through the comprehensive analysis and summing up the main geological problems involving in the railway alignment，the relevant measures for controlling the geological problems were worked out in classification to overcome the main geological problems，lower down the construction risk and optimize the alignment thinking，obtaining the good result．It is worth wide using in the similar works．

Key words： Lhasa － Xigaze Railway canyon area geological problems alignment

Received: 09 January 2013

PACS:

U212

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	WEI Guo － jun

Cite this article:

WEI Guo － jun. Main Geological Problems of Lhasa － Xigaze Railway in Brahmaputra Canyon Area and Countermeasures[J]. 铁道工程学报, 2013, 30(4): 21-25.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2013/V30/I4/21

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