Safety distance research model test device for influence of landslide on existing tunnel

• Main Authors: HUANG CHENG, YUAN QIAOWEI, LI YINGXIAO, CHEN HUIYU, DU BITAO, ZHOU YUHANG, ZHANG CE, LIU YUANMING, CHEN LINQUAN, LIU KAI
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; CRYPTOGRAPHY; DIAGRAMS; DISPLAY; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; GLOBES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; PLANETARIA; SEALS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The utility model discloses a safe distance research model test device for the influence of a landslide on an existing tunnel. A main body of the device is a sealable model test box, a lower-layer similar material simulates stable surrounding rock, an upper-layer similar material simulates weathered surrounding rock with a landslide risk, and an upper-layer and lower-layer interface is an inclined plane with a landslide gradient designed according to a test; in the process of filling the lower-layer material, a tunnel model is placed, a strain gauge is attached, an earth pressure box is buried, and then the upper-layer material is filled; after the procedures are completed and the filling materials are stabilized, the filling materials simulating unstable rock mass on the upper layer are released from the left blocking door with the lifting height capable of being freely controlled, the tunnel axial force bending moment can be calculated according to the strain by monitoring the stress strain of the tunnel, a