ABSTRACT
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.
