物探技术在越岭隧道选线中所发挥的作用

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Abstract Research purposes: The construction of railway watershed tunnel is a tough work with several schemes for selection and it is crucial to the railway alignment，construction investment and construction security． As in the watershed section，the track elevation is high，the tunnel is deep buried and the topographical and geological conditions are complicated，only adoption of the regional mapping and boring in large area is difficult to clearly know the geological conditions． How to scientifically and seasonably bring the geophysical prospecting into play in the route selection of railway watershed tunnel is the question facing to the railway prospector． Taking the geological prospecting for the watershed tunnel of Jining － Tonghua Railway as an example，this paper studies the role of geophysical prospecting in the route selection of railway tunnel．

Research conclusions: By using the geophysical prospecting，the unfavorable geological structure of fault，the lithologic delimitation and the development of underground water can be clearly found out and it can provide the basis for grading the surrounding rock of the tunnel． The scientific arrangement of boring and reduction of boring quantities can much cut the prospecting cost，shorten the prospecting period and enhance the survey quality． So the geophysical prospecting can play great role in the route selection of the watershed tunnel．

Key words： watershed tunnel route selection comprehensive geophysical prospecting role

Received: 18 May 2011

PACS:

U213．1

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	HAO Ming
	LI Zhi － hua

Cite this article:

HAO Ming,LI Zhi － hua. Role of Geophysical Prospecting in Route Selection of Watershed Tunnel[J]. 铁道工程学报, 2011, 28(8): 13-17.

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2011/V28/I8/13

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