Tunnel segment attitude measurement device applying small prism

• Main Authors: LIN FEI, WEI WEIHUA, HE PEIRONG, WANG YONGFENG, SUN SHITONG, CHEN TIANXING, ZHOU TIANLUN, SHI GUOQIANG, YANG BIN, ZHOU CHENJIE
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2020
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING DISTANCES, LEVELS OR BEARINGS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The utility model relates to a tunnel segment attitude measuring device using a small prism. The measuring device is used in the construction process of tunnel excavation. After the shield tunneling machine excavates the tunnel, a plurality of pipe pieces are attached to the inner wall surface of the tunnel; the measuring device comprises a total station, a leveling instrument and a prism assembly, the prism assembly comprises a mounting base and a small prism, the mounting base is a hollow cuboid; the horizontal ruler is positioned in the mounting base and is horizontally erected on the ductpiece; a locking hole is formed in one side face, in the length direction of the horizontal ruler, of the installation base, a fixing bolt is connected into the locking hole in a threaded mode, the fixing bolt abuts against the horizontal ruler, an installation plate is arranged on one face, in the width direction of the horizontal ruler, of the installation base, and the small prism is arranged on the installation plate