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 loaded on the vehicle body part 10, an outrigger 11 for supporting the vehicle body part 10, a reaction measuring instrument 20 for measuring reaction R of the outrigger 11, an inclination angle measuring instrument 90 for measuring an inclination angle θ of the vehicle body part 10, a length measuring instrument 31 for measuring the length L of a jack of the outrigger 11, and a controller 70 for calculating the ground strength based on the reaction R of the outrigger 11, on the inclination angle θ of the vehicle body part 10, and on the length L of the jack.SELECTED DRAWING: Figure 1