Device and method for accurately measuring deformation of tunnel base surrounding rock

• Main Authors: TANG BAOQUAN, LIU HAIBO, LIU QIANG, WANG DONG, ZHAO RUISHENG, HU RUOQI, ZHANG SHUYU, SONG ZHANPING, ZHENG BIN, LI XINGXING
• Format: Patent
• Language: Chinese; English
• Published: 14.04.2023
• 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 invention relates to the technical field of tunnel monitoring and measurement, in particular to a device for accurately measuring tunnel base surrounding rock deformation, which comprises a measuring rod and an auxiliary tool, one end of the measuring rod is provided with a base, and the outer surface of the measuring rod is sleeved with the auxiliary tool; the auxiliary tool comprises a sleeve, a plastic plate, a thin steel wire rope and a cylinder, the sleeve is in a circular tube shape, two through holes are formed in the two sides of the sleeve wall of the sleeve respectively, plastic foam is arranged in the sleeve, and a mounting hole is formed in one end of the plastic foam along the central axis and used for allowing the measuring rod to penetrate through; the number of the plastic plates is two, and the two plastic plates are installed at the two ends of the plastic foam. According to the invention, according to the principles of low cost, simple manufacturing and installation and practicability,