Definition - What does Ground Pressure mean?
Ground Pressure is the pressure that is exerted by tracks or tires of motorized vehicles and is a usually measure of its possible mobility over soft ground. It is also applied to the feet of a machine or walking person. It can be measured in Pascal that corresponds to psi – pounds per square inch units. The average ground pressure can be measured by using the standard formula for average pressure. This pressure of motorized vehicles is usually compared to the pressure of the human foot.
Petropedia explains Ground Pressure
Ground Pressure decreases with increase in the size of contact area on the ground with regard to the weight. The decrease in the pressure increases flotation and allows easier passage of body over a soft terrain. It can be observed in the activities such as snowshoeing. In rock formations, Ground Pressure is controlled by weight of superimposed rocks and rock materials or by the diastrophic forces due to the movements in rocks that form the earth's crust. These pressures are adequate to cause rocks with low compressional strength to squeeze and deform, and close wellbores or other underground openings that are not satisfactorily strengthened by artificial support like timber or casing.