Thermal Science 2023 Volume 27, Issue 1 Part B, Pages: 615-622
https://doi.org/10.2298/TSCI2301615Y
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Geothermal characteristics of the Xianshuihe fault zone and their engineering influence on tunnel construction
Yuan Dong (State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, China + MOE Key Laboratory of Deep Earth Science and Engineering, Sichuan University, Chengdu, China + China Railway Eryuan Engineering Group Company, Ltd, Chengdu, China), xiaokun@stu.scu.edu.cn
Xiao Kun (State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, China + MOE Key Laboratory of Deep Earth Science and Engineering, Sichuan University, Chengdu, China)
Feng Tao (China Railway Eryuan Engineering Group Company, Ltd, Chengdu, China)
Zhang Guang-Ze (China Railway Eryuan Engineering Group Company, Ltd, Chengdu, China)
Xu Zheng-Xuan (China Railway Eryuan Engineering Group Company, Ltd, Chengdu, China)
Wang Zhe-Wei (China Railway Eryuan Engineering Group Company, Ltd, Chengdu, China)
Yi Xiao-Juan (China Railway Eryuan Engineering Group Company, Ltd, Chengdu, China)
Lin Zhi-Heng (China Railway Eryuan Engineering Group Company, Ltd, Chengdu, China)
Zhang Zhi-Long (State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, China + MOE Key Laboratory of Deep Earth Science and Engineering, Sichuan University, Chengdu, China)
Zhang Ru (State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, China + MOE Key Laboratory of Deep Earth Science and Engineering, Sichuan University, Chengdu, China)
Qi Ji-Hong (College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, China)
The Zheduo Mountain tunnel crosses the Xianshuihe fault zone in Kangding
city. The Xianshuihe fault zone is composed of many large-scale faults and
features a complex geological structure and strong geothermal activity.
Based on geothermal drilling data, hydrogeological tests and the geothermal
geological back-ground of the study area obtained via hydrogeological
surveys and hydrogeo-chemical methods in the process of tunnel surveying,
this paper explores the exposure characteristics and distribution of
geothermal water in the study area, analyses its hydrogeochemical and
isotopic characteristics, and thoroughly studies the hydrogeological
structure of the geothermal water to explore the genetic mechanism
responsible for the formation of the geothermal water. The influence of the
geothermal water and high ground temperatures on tunnel construction is
further predicted, and practical and effective engineering treatment
suggestions are proposed.
Keywords: Xianshuihe fault zone, geothermal water, hydrogeochemistry, geothermometry
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