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这是西德联邦铁路的“卡尔斯鲁厄”(Karlsruhe)型隧道断面测量车。测量车装有一个框架,框架上装有55个量测臂杆。测量横断面时,量测臂杆紧贴着隧道墙上及拱部的点,框架用铅锤定位。量测臂杆与一
This is the “Karlsruhe” tunnel cross-section measuring vehicle on the West Federal Railroad. The measuring car is equipped with a frame with 55 measuring arm rods. Measurement of cross-section, the measuring arm close to the tunnel wall and the arch of the point, the framework of the lead hammer positioning. Measuring arm and a