Tunnel disturbance deformation measurement method based on vertical underpass

• Main Authors: HAN XIANMIN, LIU BAOAN, FENG JUNGUO, LI WENJIANG, DUAN ZHIGUO, WANG KANG, ZHANG JUN, GUO KANG, YUAN JINGYUAN, WANG SIYING, ZHANG ZEXIN, LI QIAN
• Format: Patent
• Language: Chinese; English
• Published: 23.12.2022
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING DISTANCES, LEVELS OR BEARINGS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MINING; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SURVEYING; TESTING

The invention discloses a tunnel disturbance deformation measurement method based on vertical underpass. The deformation measurement method comprises the following steps: step 1, determining a tunnel positioning line before disturbance; 2, test sections with the interval of 3-5 m are arranged along the axis of the upper existing tunnel; 3, arranging a target on the vault of each monitoring section; 4, a positioning block fixed through an expansion bolt is arranged at the bottom of each monitoring section; 5, designing a device for measuring tunnel axis displacement; 6, the position of an irradiation point of the laser on the measurement panel is changed in the tunnel deformation process; 7, determining the horizontal convergence deformation of the tunnel by measuring the change of the distance between two horizontal measuring points of each test section through a convergence meter; 8, designing a device for positioning and measuring tunnel vault settlement deformation; and ninthly, the settlement change of th