Testing device and method for testing surrounding rock plastic zone range caused by tunnel excavation

• Main Authors: QIAN JIAN, LI RUILIN, ZHANG ZENG, YAO CHAOFAN, TANG JUNLIN, GUO DEPING, LIAO YANKAI, SHEN MINGLIANG, WANG FENG, LUO XUN
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a test device and method for testing a surrounding rock plastic zone range caused by tunnel excavation, the test device mainly comprises a first side plate, a second side plate, an upper top plate and a lower bottom plate, the upper top plate can move up and down, and the second side plate can move left and right; a test box is defined by the first side plate, the second side plate, the upper top plate and the lower bottom plate, and a simulation tunnel is arranged in the middle of the test box; a first driving mechanism is arranged at the upper end of the upper top plate; a second driving mechanism is arranged on the side surface of the second side plate; soil pressure boxes are arranged in the middles of the inner side surfaces of the first side plate, the second side plate, the upper top plate and the lower bottom plate, and a radar transmitting probe and a reflected wave receiving probe are arranged on the two sides of the upper top plate respectively. The test method comprises ste