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  2023, Vol. 42 Issue (7): 1561-1581    DOI: 10.13722/j.cnki.jrme.2022.0186
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Review on catastrophe mechanism and disaster countermeasure of high geotemperature tunnels
GUO Pingye1,2,BU Mohua1,2,ZHANG Peng1,2,LI Qingbo1,2,HE Manchao1,2
(1. State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology
(Beijing),Beijing 100083,China;2. School of Mechanics Civil Engineering,China University of Mining and
Technology(Beijing),Beijing 100083,China)
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Abstract  With the development of tunnel engineering in the direction of “deep,large and long”,high geotemperature has become one of the inevitable geological disasters in tunnels. This paper summarizes the literature from three aspects:the disaster forms,classification standards and disaster control technology of high geotemperature tunnels. The disasters caused by high geotemperature mainly include high-temperature and high-humidity environments,deformation and failure of tunnel surrounding rock,and failure of the supporting structure. The existing classification standards of heat-hazard in underground engineering are mainly based on the surrounding rock temperature and the ambient temperature in the tunnel,focusing on the impact of thermal environment caused by high geotemperature on the health of workers,while ignoring the influence of high geotemperature on surrounding rock and supporting structures. Meanwhile,high temperature water gushing is not considered. The control technology of high-temperature and high-humidity environment includes non-artificial cooling technology and artificial cooling technology. Exploring the form,technology and material of supporting structure suitable for high temperature environment is the main way to control the deformation and destruction of surrounding rock and prevent the failure of supporting structure. Southwest area is an important area facing high geotemperature disasters in China,with disaster characteristics such as ultra-high rock temperature,high-temperature water gushing,ultra-long-distance ventilation and plateau cold climate. Based on the consideration of the types of disasters induced by high geotemperature,the classification criteria of heat-hazard of high geotemperature tunnels are explored,which are based on dry heat type and hydrothermal type. On this basis,combined with the principle of “prescribing the right remedy to the case,classified control”,the disaster countermeasures of extremely high geotemperature tunnel of southwest area are explored.
Key wordstunnel engineering      high geotemperature      catastrophe mechanism      disaster countermeasure      heat-humidity environment     
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Articles by authors
GUO Pingye1
2
BU Mohua1
2
ZHANG Peng1
2
LI Qingbo1
2
HE Manchao1
2
Cite this article:   
GUO Pingye1,2,BU Mohua1, et al. Review on catastrophe mechanism and disaster countermeasure of high geotemperature tunnels[J]. , 2023, 42(7): 1561-1581.
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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2022.0186      OR      https://rockmech.whrsm.ac.cn/EN/Y2023/V42/I7/1561
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