Ground treatment apparatus

A ground treatment apparatus including a holding device held on a support device, a plurality of injection elements disposed on the holding device, a fluid providing device in fluidic connection with the plurality of injection elements, a lifting device for inserting the plurality of injection elements into the ground and to extract the plurality of injection elements from the ground, a plurality of fluid containers in fluidic connection with the fluid providing device for the supply of fluid and a valve device having a plurality of outlet valves. The apparatus further including preassembled injection units, a respective injection unit comprising a fluid container, an outlet valve and an injection element.