The construction of the SichuanTibet
railway faces numerous challenges such as significant terrain elevation
differences, complex geological characteristics, and a harsh climatic
environment, among which the high altitude has particularly significant effects
on the Sichuan-Tibet railway′s
construction. The influence factor of high altitude on construction equipment
by drillandblast method for
Ya′anLinzhi section is
analyzed from the aspects of power system, electrical control system, fluid
control system, and air compressor performance to realize mechanized
construction of SichuanTibet railway tunnels. Some
recommendations for equipment selection of key construction processes of drillandblast construction operations in cold
and highaltitude environments, such as advance
support, excavation, primary support, and secondary lining, are made. The
equipment includes advance drill and support equipment, rockbreaking jumbos, arch frame installation equipment, shotcrete
equipment, crusher + belt conveyor mucking system, excavation + loading + electrical transport equipment,
and mobile dedusting equipment.
XING Bo
,
FENG Huanhuan
. Suggestions and Considerations on Equipment Selection
for Constructing Sichuan-Tibet
Railway Tunnels at High Altitudes[J]. Tunnel Construction, 2021
, 41(10)
: 1644
-1653
.
DOI: 10.3973/j.issn.2096-4498.2021.10.003
