TBTLWD-1G handheld light weight deflectometer is used to determine the deflection of subgrade under dynamic loading, further to evaluate the bearing capacity and deformation of subgrade. It is suitable to inspect construction foundation for railways, highways, airports, urban transportation, ports, docks and industrial & civil buildings under dynamic loading, especially suitable for inspecting narrow areas such as road-bridge (culvert) transition sections and road berm, or subgrage for existing railway or road. It can quickly measure the dynamic deformation modulus Evd value.
TB10102-2010 , TB10414-2003
Imported sensors & components grants high test accuracy.
LCD display with prompts.
Operation is simple, test speed is fast as 35 seconds for one point.
The Evd value is automatically calculated with curve display, which is accurate and intuitive.
Hand-held host, equipped with Bluetooth mini printer, directly print on site.
USB interface connects with computer.
It simulates high-speed train running impact on roadbed, comparing with static loading test, it can show actual stress on subgrade soil.
With voice prompt for convenient operation.
With 1 geophone sensor, can only test EVD modulus
Applicable soil type
Soil, soil-rock mixture at particle size ≤ 1/4 of the diameter of loading plate
Evd : 10Mpa≤Evd≤225Mpa
Test impact depth
temperature -10℃～40℃ humidity ＜90%HR
Data acquisition device
With 1 geophone sensor
Weight: 15kg, including hammer 10kg.
Hammer falling height: 700±20mm
Settlement test range
2000 groups of data
Large-capacity lithium battery, for more than 18 hours
screen display switch forChinese/ English
Wireless Bluetooth for printing
Inside case Material: Engineering Plastic
420x140x335mm at 4.5kg
Outside case: Aluminum alloy case
1220x395x380mm at 56KG