The invention discloses a soft foundation structure of a sports ground
lawn and a construction method of the soft foundation structure. The soft foundation structure comprises a plurality of drainageblind pipes, a tamped layer, a gravel layer, a pea gravel layer, a plastic permeable soft base layer and a
lawn layer, wherein the tamped layer is located at the bottommost end and is made of plain soil, the lower surface of the gravel layer is in contact with the upper surface of the tamped layer, and the drainage blind pipes are arranged in the gravel layer; the lower surface of the pea gravel layer is in contact with the upper surface of the gravel layer, the lower surface of the plastic permeable soft base layer is in contact with the upper surface of the pea gravel layer, and the lower surface of the
lawn layer is in contact with the upper surface of the plastic permeable soft base layer. The construction method is simple, a built soft foundation is more suitable for the
hardness of
human body sports and environmentally friendlier, the
water seepage rate of
a site can be increased, an artificial lawn and a natural lawn can be freely switched, the project cost is reduced to a certain extent, and the soft foundation structure is suitable for sport grounds such as football fields, baseball fields, softball fields, rugby fields, cricket fields and golf courses.