To achieve safe, fast, and highqualified
construction of the tunnel in section D of the second phase of the UAE railway,
a systematic study on the mechanization and rapid operation of complete sets of
equipment is conducted. By investigating the existing data in China and abroad,
the manmachine resources for the mechanized
construction of the single operation surface of the tunnel are scientifically
and reasonably equipped. By using the method based on the mechanical balance
stability analysis of the excavation surface, it is found that the grade S3
surrounding rock excavation with fullsection method
and grades S4 and S6 surrounding rocks excavation with bench method can ensure
the stability of the excavation surface. Based on the rapid operation
construction method adapted to surrounding rock at all grades, the numerical
software calculation model is established. The maximum excavation footage of
grades S3, S4, and S6 surrounding rocks is 4.5, 2, and 1.5 m, respectively. The
mechanized construction technology of railway tunnel in UAE is summarized, and
the process time and construction efficiency of mechanized construction and
traditional construction are compared and analyzed.
ZHANG Xiaodong, WU Quande, FAN Yongzai, LIU Dagang, WANG Yan, LUO Jia
. Mechanized Rapid Operation of Complete Sets of
Equipment in Large CrossSection Tunnels[J]. Tunnel Construction, 2023
, 43(S1)
: 416
-424
.
DOI: 10.3973/j.issn.2096-4498.2023.S1.048
