Prediction of the Trafficability of the Tractor on the Soft Paddy Field (III)

Measuring Device of the Soil Parameters, TN-4

Abstract

The self-recording device for measurement of soil values named Soil Values Meter TN-4 was designed and tested in our laboratory. Many various soil values, cone index, shear resistances of the soil surface, internal friction coefficient of soil tanφ′ cohesion c, friction between soil and tires tanφ′, Bekker's modules of soil deformation kc, kφ, and exponent of soil deformation n, etc., can be measured by this device simply by self-recording system.
Measurement can be done by only one person and this device reduces the time and labor for transcribing and rearranging to the chart from the data in conventional non-self-recording devices.