WYD300-2 Geotechnical Engineering Model Experimental Simulation System Introduction: The three-dimensional physical simulation test system for geotechnical engineering is developed to test and analyze the macroscopic and microscopic deformation fields and stress fields of three-dimensional engineering rock masses, in order to determine the stability theory of rock engineering and develop reasonable and effective treatment measures. The experimental system consists of a double-layer closed loading frame, a two-piece curved loading beam, and a hydraulic loading, stabilizing, and oil cylinder combination loading method with three channels, which completes the loading and stabilizing control of three-dimensional rock mass. Technical parameters: Double layer loading rack: total load on the long side: 120KN; Single layer load: 60KN Short side total load: 60KN; Single layer load: 30KN Maximum specimen range: less than 3000 * 2000 * 1200mm Loading beam load: single: 30KN, two: 60KN Actuator (oil cylinder) stroke: 200mm Load of actuator (oil cylinder): 30KN (one-way single action) Loading method: one-way single acting oil cylinder Three channel hydraulic control system pressure level (MPa): 0-5; 0-16; 0-32 Static voltage stabilization accuracy: 0.5% F.S Working medium: N46 anti-wear hydraulic oil Motor power: 3KW Power supply: 380V 50HZ Installation area: 15 square meters Technical parameters of static strain testing system Measurement points: Each data sampling box can measure 60 points, and each computer can control an infinite number of data sampling boxes; Applicable strain gauge resistance values: 1/4 bridge (120 Ω three wire self compensation), half bridge, full bridge: 120 Ω or 350 Ω Sampling rate: 2Hz/channel; Strain gauge sensitivity coefficient: 1.0~3.0 automatically corrected; Supply bridge voltage: 2V (DC); one Strain measurement range: ± 30000 μ ε; Maximum resolution: 1 μ ε; Voltage measurement: Full scale value ± 5000mV, ± 30mV; System indication error: not greater than 0.5% ± 3 μ ε; Zero drift: not greater than 3 μ ε/4h; Automatic balancing range: ± 15000 μ ε (± 1.5% of strain gauge resistance); Correction range for long wire resistance: 0.0~100 (Ω); Communication interface: 100M Ethernet interface, WiFi wireless communication interface; Wireless communication distance: nominal 200 meters (unobstructed) Large displacement sensor: Range: 0-150mm Data collection and control software; VC++6.0 programming
Introduction: The three-dimensional physical simulation test system for geotechnical engineering is developed to test and analyze the macroscopic and microscopic deformation fields and stress fields of three-dimensional engineering rock masses, in order to determine the stability theory of rock engineering and develop reasonable and effective treatment measures. The experimental system consists of a double-layer closed loading frame, a two-piece curved loading beam, and a hydraulic loading, stabilizing, and oil cylinder combination loading method with three channels, which completes the loading and stabilizing control of three-dimensional rock mass.
