地质雷达检测隧道二衬钢筋对初支型钢拱架分辨率的影响研究

摘要

通过地质雷达检测方法研究隧道二衬不同钢筋间距对初支型钢拱架分辨率的影响.结果表明:在衬砌密实的前提下,二衬钢筋间距大于25 cm时,基本可以识别初支型钢拱架;在相同钢筋间距下,单层钢筋的型钢拱架比双层钢筋的型钢钢拱架更容易识别.%Through the geological radar detection method,the influence of different spacing of the steel bars of the tunnel second lining to the resolution of the initially supported structural steel arch is studied,The result shows under the premise of compact lining,the secondary lining steel space is more than 25 cm,the initially supported structural steel arch can be identified basically;with the same bar spacing,the structural steel arch of single rebar is easier to be identified than that of the double rebar.