Due to the geological factors in the construction of
Yuntunbao Tunnel on ChengduLanzhou Railway, the design scheme
of emergency rescue station should be optimized. The economic and technological
comparison is made among 3 optimization solutions from the aspects of civil
engineering scale, project investment, construction risks, evacuation and
ventilation, and operation and maintenance, respectively. Meanwhile, the
arrangement of rescue stations in singletube doubletrack tunnel is further explored and studied. The study results show
that: (1) The scheme of multiple small crosssection
galleries might be superior to that of a large crosssection
gallery for emergency rescue station of extralong
tunnel. (2) The structural intervals should be expanded properly at emergency
rescue station section to avoid interactions between tunnels. (3) High
construction risks might also exist when a rescue station requires smallscale civil engineering. (4) The adjustment of civil engineering
schemes for a rescue station would affect the matching of electromechanical
equipments and operating cost. (5) The shafttype
connected smoke vents should be designed with 90° vertical bends for the convenience of construction, operation and maintenance.
WANG Ruochen
,
ZHU Yong
,
DI Cheng
,
HUANG Hua
.
Study on Optimization of Emergency Rescue Station of Yuntunbao Tunnel on ChengduLanzhou
Railway
[J]. Tunnel Construction, 2020
, 40(7)
: 1029
-1034
.
DOI: 10.3973/j.issn.2096-4498.2020.07.012
