0102030405
Laboratory Automatic Soil Loading Permeameter
Core Principle
By applying a constant or graded load to a soil sample and measuring the dissipation of pore water pressure and the change in deformation over time under drainage conditions, the consolidation coefficient, permeability coefficient, and other indicators can be calculated.
During the test, the soil sample is typically placed in a rigid or flexible container. Loading can be performed using weights, levers, or air pressure. Drainage conditions can be controlled to single- or double-sided drainage as needed to simulate different engineering scenarios.
Test Purpose
To determine the permeability coefficient of the soil sample as seepage water passes through it, as well as the critical slope at which fine-grained soil gradually loses its water flow (piping), and the failure slope at which the soil mass floats (soil flow). Suitable for disturbing fine particles, sand, clay, and undisturbed soil samples.
Optional functions (flow totalizer): Temperature (°C), Pressure (MPa), Flow rate (factory Nm³/h), Accumulation (Nm³); detailed parameters are in the Engineering Instruments and Measurement category.
Technical Parameter
1. Vertical Permeability Deformometer: Consists of a loading device, frame, pressure regulator, sample tube, top cover, base, permeable plate, pressure sensor, and instrument.
2. Test tube inner diameter: ￠100mm × 125mm and ￠150mm × 170mm; other sizes are optional. Constructed from metal steel pipe, with a piston-driven rod in the center of the top cover.
3. Permeable plate apertures are available in 3mm, 5mm, and 7mm. A sloped permeable plate is installed below the lower permeable plate.
4. Saturated permeability head pressure: Adjustable with an accuracy of 0-1MPa. 0.01MPa
5. Loading System: Air pressure loading 0-20kN, pressure adjusted according to specimen area and maintained constant
6. Loading deformation: 0-30mm ± 0.01mm, optional
7. Pore pressure sensor: 0-1MPa ± 0.2kPa
8. Permeability meter: 0-200ml ± 0.2ml; optional automatic water permeability coefficient acquisition system (real-time LCD display)
9. Host computer software: Real-time display of consolidation force, deformation, pore pressure, and water seepage, recording, storage, graphing, and export.
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