To guarantee the renovation effect of railway tunnel
lining cavity under bad geological conditions, based on practical renovation
cases, the causes of lining cavity, the approximately standard flowbased
renovation technical solutions, the safety calculation of lining structure with
bad geological conditions, renovation effect assesment, etc. are studied. The
results show that：（1）Lining
cavity is mainly caused by bad geological effects (i.e. groundwater erosion and
karstification) and construction quality problems (i.e. uneven initial
supports, vault cavity and human factor); (2) Through checking calculation of
structural safety and nondestructive testing of
geological radar and lining strength experiment, it is proved that the
comprehensive renovation concept and method system of railway tunnel lining
cavity established have good effect.
GUO Haipeng, WANG Yonghong, AN Yecheng, ZHANG Jukang
. Cause Analysis and Renovation of Railway Tunnel Lining
Cavity [J]. Tunnel Construction, 2020
, 40(S1)
: 444
-453
.
DOI: 10.3973/j.issn.2096-4498.2020.S1.059
