First, the meteorological conditions of typical coldregion
tunnels during different periods in China, the freezing damage phenomena and
relevant prevention measures in the construction and operation periods are
reviewed, and the development process of tunnel antifreezing technologies are
presented. Second, the influencing factors for the tunnel freezing damage are
combed, the current research status of the temporal and spatial distributions
of the tunnel temperature field in cold regions from the aspects of a field
test and coupling theory are summarized, and the different effects of the train
piston wind and natural wind on the temperature field of railway tunnels in
cold regions are analyzed, obtaining the distribution law of the tunnel
temperature field in cold regions. Third, the mechanism and research status of
freezing damage of the soil, rock mass, and concrete under the conditions of
water ice phase change and water infiltration and migration are discussed from
the microcosmic, microscopic, and macroscopic levels, acquiring the conclusions
as follows: (1) the prevention and control of the freezing damage should follow
the two technical principles of reducing groundwater and controlling the
temperature field in the tunnel, and (2) the active and passive prevention and
control measures should be used. Finally, the development directions of the
tunnel antifreezing technology in the temperature field law, freezing damage
mechanism, shortperiod freezing and thawing,
antifreezing materials, and clean energy utilization are explored.
WAN Jianguo
. Review on and Present Situation and Prospect of
Antifreezing Technologies for Tunnels in Cold Areas in China[J]. Tunnel Construction, 2021
, 41(7)
: 1115
-1131
.
DOI: 10.3973/j.issn.2096-4498.2021.07.005
