ESTIMATION DEVICE OF GROUND STRENGTH OF OUTRIGGER GROUNDING SOIL OF MOBILE VEHICLE, AND ESTIMATION METHOD OF GROUND STRENGTH OF OUTRIGGER GROUNDING SOIL OF MOBILE VEHICLE

摘要

To provide an estimation device of ground strength of outrigger grounding soil of a mobile vehicle capable of estimating the ground strength by a simple constitution without remodeling greatly the outrigger itself.SOLUTION: An estimation device D of ground strength includes a vehicle body part 10, a boom 14 as an implement loaded on the vehicle body part 10, an outrigger 11 for supporting the vehicle body part 10, a pressure gauge 20 as a reaction measuring instrument for measuring reaction of the outrigger 11, a cave-in amount measuring instrument 30 for measuring the cave-in amount into the ground of the outrigger 11, and a controller 70 as a calculator for calculating the ground strength based on the reaction R of the outrigger 11 and on the cave-in amount x.SELECTED DRAWING: Figure 1