RESEARCH ON THE ENGINEERING GEOLOGY CONDITION AND RAILWAY ROUTES COMPARISON ALONG THE Mt. GAOLIGONG SECTION, DALI-RUILI RAILWAY

LI Guang-wei; DU Yu-ben; JIANG Liang-wen; GUO Chang-bao; SHEN Wei; LIU Xiao-yi

Volume 21 Issue 1

Mar. 2015

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Article Navigation > Journal of Geomechanics > 2015 > (1): 73-86

LI Guang-wei, DU Yu-ben, JIANG Liang-wen, et al., 2015. RESEARCH ON THE ENGINEERING GEOLOGY CONDITION AND RAILWAY ROUTES COMPARISON ALONG THE Mt. GAOLIGONG SECTION, DALI-RUILI RAILWAY. Journal of Geomechanics, (1): 73-86.

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RESEARCH ON THE ENGINEERING GEOLOGY CONDITION AND RAILWAY ROUTES COMPARISON ALONG THE Mt. GAOLIGONG SECTION, DALI-RUILI RAILWAY

1.
The Engineering Design Appraisal Center of China Railway Corporation, Beijing 100844, China
2.
China Railway Eryuan Engineering Group Co. Ltd., Chengdu, Sichuan 610031, China
3.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China

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Received: 2014-10-14
Published: 2015-03-01

Abstract

Abstract

Based on the field geological investigation, drilling, in-situ stress measurement and lab test analysis, this paper illustrates the main engineering geological problems that could be encountered in the Mt. Gaoligong section railway planning and construction, such as high geo-temperature, high geo-stress, active fracture dislocation, rock burst, water pouring out and mud squirting, large deformation of the soft rock, landslide, and so on. The paper deems that the high geo-temperature and thermal harm are the key factors restricting the Mt. Gaoligong deep-buried tunnel section. According to geothermal drilling and lad test results analysis, the geothermal distribution is obviously controlled by the geology structure, and the Huangcaoba fault has the engineering geology of block water and heat insulation. Based on comprehensive comparative analysis, the C12K scheme (34.6 km long tunnel scheme) is a better scheme, located in the relatively low geothermal channel, south of the Huangcaoba fault, and this scheme has avoided some unfavorable engineering geological problems such as the ancient landslide at the tunnel entrance. The survey and research results have great importance for the landslide optimization and further design.
- Dali-Ruili railway,
- Mt. Gaoligong,
- engineering geological problem,
- geological route selection,
- route scheme

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References(17)

References

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