| In road tunnels, hanging and anchorage system is used to support electrical
and mechanical equipment, including a jet fan. In this paper, we report measurement results
of tensile forces of six turnbuckles hanging a jet fan in an actual road tunnel. We also report
pull-out tests of post-installed anchors to evaluate the effect of cracks and fiber sheeting on
the pull-out strength. From the results of the measurement and the experiments, we summarized
the points of attention of hanging and anchorage system to ensure the safety of road
tunnels. |
