SPL

This tester is used to determine the subsidence value of the roadbed under the static load, so as to evaluate the bearing capacity and deformation of the roadbed.
It is suitable for monitoring the quality of foundation construction of railways, highways, airports, urban transportation, ports, terminals and industrial and civil buildings subject to static loads.
After the ground is loaded and unloaded for the first time through the circular load bearing plate and the loading device, the second load is performed, and the measured stress σ of the load bearing plate and the corresponding center settlement value S of the load bearing plate are used to calculate The values of the deformation modulus Ev2 and Ev2 / Ev1.
Features
• Sensors and some components are imported, with high test accuracy and more reliable test data;
• Oil cylinder and manual pump imported from abroad, achieve outstanding pressure control and voltage stabilization performance;
• The displacement acquisition device adopts heavy-duty materials and a three-point support design, which has strong anti-seismic and wind-proof capabilities to ensure accurate data;
• LCD display in English interface, with backlight, it has better visibility in various environments.
• Ev1, Ev2 and Ev2 / Ev1 are automatically calculated and display curve.
• The hand-held main unit is equipped with a Bluetooth mini printer and directly printed on site to ensure the test results are accurate and objective.
• USB transmission interface is convenient for connection with computer.
• Voice prompt function makes operation more convenient.

TECHNICAL PARAMETERS

Application area
Application soil type: Various types of soil and earth-rock mixed fillers with a particle size not larger than 1/4 of the bearing plate diameter
Test influence depth: 0~500mm
Working environment Temp.: -10ºC~40ºC humidity <90%HR

Handheld main unit
Size: Screen size:3 inch Dimension:100×205×40mm Weight:0.8kg
Storage capacity: 400 group testing data
Power supply: Large-capacity lithium battery, working time is more than 18 hours
Display: Handheld main unit screen, switch display between Chinese and English interface

Sensor
Pressure sensor range: 100kN
Displacement sensor range: 25mm, resolution 0.01mm

Data acquisition device
Loading plate Diameter:300mm Thickness:25mm Weight:around 17.5kg
Loading device: Hydraulic pump:capacity 100kN high-pressure hose:length 2m Plug-in pressure cylinder extension rod:1×40mm,1×90mm,1×120mm,1×160mm,2×60mm
Settlement test device: Three-point support frame (with retractable, rotatable lever arm, adjustable base); Dimension: around 2320×570×420mm(LxWxH); Weight: around 12.5kg