CDST2.4-1 ultra large vertical permeameter Introduction: The ultra large vertical permeability testing device is a specialized large-scale vertical water permeability testing device developed based on the technical requirements provided by the user and in accordance with the group standard T/CHES 29-2019 "Coarse grained Soil Testing Regulations" and the national standard GB/T 50123-2019 "Geotechnical Testing Regulations" of the People's Republic of China. The equipment is suitable for disturbed coarse-grained soil samples, with a maximum applicable particle size of 650mm. It is used to measure the vertical permeability coefficient of coarse-grained soil and the critical slope (piping) at which fine particles gradually flow away with seepage water, as well as the failure slope (flowing soil) when the soil floats as a whole. This device is equipped with a computer acquisition and control system. The computer software is developed using VC++, with a Windows like interface and drop-down menus. The interface is user-friendly and easy to operate, and the operating platform is Windows 10. After setting the stable head pressure value of the automatic control variable frequency water source stabilization system on the system computer software according to the head pressure requirements of each test, the user can automatically control and operate the variable frequency controller through the computer to change the operating frequency of the pump unit drive motor, thereby changing and controlling the head pressure. Combined with large capacity energy storage devices and buffer reservoirs, achieve stable seepage water pressure during the infiltration process. Technical parameters: 1. Inner diameter: 2000mm; 2. Transition section: made of metal material; 3. The experimental section is visible; 4. Water outlet section: metal; 5. Water pressure: 1.5MPa, can be continuously stabilized; 6. Maximum specimen particle size: 650mm; 7. Automatic control accuracy: 1% F.S; 8. Automatic flow monitoring and seepage particle camera observation system; 9. Automatic segmented permeation pressure monitoring system.
Introduction: The ultra large vertical permeability testing device is a specialized large-scale vertical water permeability testing device developed based on the technical requirements provided by the user and in accordance with the group standard T/CHES 29-2019 "Coarse grained Soil Testing Regulations" and the national standard GB/T 50123-2019 "Geotechnical Testing Regulations" of the People's Republic of China. The equipment is suitable for disturbed coarse-grained soil samples, with a maximum applicable particle size of 650mm. It is used to measure the vertical permeability coefficient of coarse-grained soil and the critical slope (piping) at which fine particles gradually flow away with seepage water, as well as the failure slope (flowing soil) when the soil floats as a whole. This device is equipped with a computer acquisition and control system. The computer software is developed using VC++, with a Windows like interface and drop-down menus. The interface is user-friendly and easy to operate, and the operating platform is Windows 10. After setting the stable head pressure value of the automatic control variable frequency water source stabilization system on the system computer software according to the head pressure requirements of each test, the user can automatically control and operate the variable frequency controller through the computer to change the operating frequency of the pump unit drive motor, thereby changing and controlling the head pressure. Combined with large capacity energy storage devices and buffer reservoirs, achieve stable seepage water pressure during the infiltration process.
