GTJ-EVD-W Dynamic deformation modulus tester (hand-held drop hammer deflection tester)

The GTJ-EVD-W type Light weight deflectometer is used to determine the deflection capacity of the subgrade under the dynamic load, thereby evaluating the bearing capacity and deformation of the subgrade. It is suitable for monitoring and testing the construction quality of railway, highway, airport, urban traffic, port, wharf, and industrial and civil buildings under dynamic loads, especially in narrow areas, such as bridge (culvert) transition section and shoulder detection, existing line subgrade, etc. Compared with the static load test, the instrument can simulate the impact effect of high-speed trains on the subgrade, which can better reflect the actual stress of subgrade soil. It can quickly measure the dynamic deformation modulus Evd value.

Additional information

Application Soil Types

Soil-rock mixed fillers with particle size less than 1/4of the diameter of loading plate

Test scope

10Mpa≤Evd≤225Mpa

Test impact depth

0~500mm

Work environment

Temperature: -10~40℃ Humidity: <90%HR

Power supply mode

Depending on the cell phone battery

Display mode

Mobile App. English Display

Product details:

USAGE OVERVIEW

The GTJ-EVD-W type Light weight deflectometer is used to determine the deflection capacity of the subgrade under the dynamic load, thereby evaluating the bearing capacity and deformation of the subgrade. It is suitable for monitoring and testing the construction quality of railway, highway, airport, urban traffic, port, wharf, and industrial and civil buildings under dynamic loads, especially in narrow areas, such as bridge (culvert) transition section and shoulder detection, existing line subgrade, etc. Compared with the static load test, the instrument can simulate the impact effect of high-speed trains on the subgrade, which can better reflect the actual stress of subgrade soil. It can quickly measure the dynamic deformation modulus Evd value.

PRODUCT FEATURES

  1. The first APP data processing method in China has realized wireless data acquisition, wireless transmission, and voice prompt function.
  2. Provide a cloud transport port dockable engineering detection and management system to provide reliable data sources for real-time data acquisition, online data analysis, large data management, etc.
  3. Imported sensors and some components are used, which have high test accuracy and more reliable test data.
  4. The wireless Bluetooth micro printer can print directly on the spot to ensure the accuracy and objectivity of the test results.
  5. It is easy to operate and fast to test. It takes only 35 seconds to detect a point.
  6. The Evd value is calculated automatically and the curve is displayed accurately and intuitively.
  7. Non-nuclear radiation and exhaust gas pollution, safe operation, and environmental protection.

 

Technical Parameter

 

 

 

Test coverage

Product Model GTJ-EVD-W
Application Soil Types Soil-rock mixed fillers with particle size less than 1/4of the diameter of the loading plate
Test scope 10Mpa≤Evd≤225Mpa
Test impact depth 0~500mm
Work environment Temperature: -10~40℃ Humidity: <90%HR
 

 

Work environment

 

Loading device

Weight: 15kg drop weight:10kg
Dropping height of drop hammer: 700±20mm
Maximum impact force: 7.07kN
Shock duration; 18±1ms
Loading plate Weight:15kg   Diameter: 300mm
Thickness: 20mm
 

 

 

Handheld host

Specifications Screen size: 5 inches
Subsidence test range Volume: 145x70x10mm
Weight: 110g
Storage capacity 0.10mm~2.00mm
Depending on the memory of the phone, 10G storage capacity
Power supply mode Depending on the cell phone battery
Display mode Mobile App. English Display
Data transmission mode Data wireless transmission, data cloud transmission
Printer Connection mode Wireless Bluetooth Printing
 

 

Packing specification

 

Host box

Material: Engineering plastics
Volume: 420*140*335mm
Weight: 4.5kg
 

Outer packing box

Material: Aluminum alloy
Volume: 1220*395*380mm
Weight: 56kg

 

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