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A sports floor, comprises a substrate disposed on an underlying honeycomb structure placed on a support base. The honeycomb structure comprises a series of substantially identical cells arranged in rows. The cells include lateral cell walls adjoining each other according to an annular configuration,

A sports floor, comprises a substrate disposed on an underlying honeycomb structure placed on a support base. The honeycomb structure comprises a series of substantially identical cells arranged in rows. The cells include lateral cell walls adjoining each other according to an annular configuration, forming cell openings upon extension of the honeycomb structure. A mesh width of the cell openings ranges between 20 and 100 mm, a height of the cell walls ranges between 5 and 250 mm, and a ratio of the mesh width to the height of the cell walls ranges between 1:4 and 1:0.1.

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The invention claimed is: 1. A sports floor, comprising: a substrate disposed on an underlying honeycomb structure placed on a support base, wherein the honeycomb structure comprises a series of substantially identical cells arranged in rows, the cells including lateral cell walls adjoining each ot

The invention claimed is: 1. A sports floor, comprising: a substrate disposed on an underlying honeycomb structure placed on a support base, wherein the honeycomb structure comprises a series of substantially identical cells arranged in rows, the cells including lateral cell walls adjoining each other according to an annular configuration, forming cell openings upon extension of the honeycomb structure, a mesh width of the cell openings ranges between 20 and 100 mm, a height of the cell walls ranges between 5 and 250 mm, and a ratio of the mesh width to the height of the cell walls ranges between 1:4 and 1:0.1. 2. A sports floor according to claim 1, wherein said cell openings adjoin the substrate at an upper side of the cell openings and adjoin the support base at a bottom side of the cell openings. 3. A sports floor according to claim 1, wherein the mesh width of the cell openings ranges between 30 and 80 mm. 4. A sports floor according to claim 1, wherein the mesh width of the cell openings ranges between 40 and 70 mm. 5. A sports floor according to claim 1, wherein the cell wall height ranges between 25 and 100 mm. 6. A sports floor according to claim 1, wherein the cell wall height ranges between 40 and 70 mm. 7. A sports floor according to claim 1, wherein the ratio of the mesh width to the height of the cell walls ranges between 1:3 and 1:1.5. 8. A sports floor according to claim 1, wherein the cell openings are filled with a filling material. 9. A sports floor according to claim 8, wherein said filling material is selected from a group consisting of minerals, natural and synthetic particles, or a combination thereof. 10. A sports floor according to claim 9, wherein said filling material consists of a mixture of sand and rubber and/or cork. 11. A sports floor according to claim 1, wherein the substrate includes means for preventing movement of the substrate with respect to the honeycomb structure, and the means for preventing movement are present on a side of the substrate adjacent to the honeycomb structure. 12. A sports floor according to claim 1, further comprising: an intermediate layer between the substrate and the honeycomb structure. 13. A sports floor according to claim 12, wherein the intermediate layer is provided with means for preventing movement of the substrate with respect to the honeycomb structure, and the means for preventing movement are present on a side of the intermediate layer adjacent to the honeycomb structure. 14. A sports floor according to claim 12, wherein the intermediate layer is provided with means for preventing movement of the substrate with respect to the honeycomb structure, and the means for preventing movement are present on a side of the intermediate layer adjacent to the substrate. 15. A sports floor according to claim 12, wherein the intermediate layer is provided with means for preventing movement of the substrate with respect to the honeycomb structure, and the means for preventing movement are present both on a side of the intermediate layer adjacent to the honeycomb structure and on a side of the intermediate layer adjacent to the support base. 16. A sports floor according to claim 1, further comprising: an additional layer between the honeycomb structure and the support base. 17. A sports floor according to claim 1, wherein the support base is provided with water drainage means. 18. A sports floor according to claim 1, wherein the substrate comprises artificial grass fibers that extend substantially transversely to the substrate. 19. A sports floor according to claim 1, wherein the sports floor is configured to be used for practising sports and/or athletics. 20. A method for constructing a sports floor, comprising: (a) removing earth from a piece of land to a first level below a final surface level to produce a stripped piece of land, (b) laying a draining system on the first level of the stripped piece of land, (c) filling the stripped piece of land with a base course, (d) overlaying the base course with a honeycomb structure consisting of a series of substantially identical cells arranged in rows, the cells including lateral cell walls adjoining each other according to an annular configuration and height of the cell walls ranges between 5 and 250 mm, (e) extending the honeycomb structure in such a manner that cell openings are formed such that a mesh width of the cell openings ranges between 20 and 100 mm and a ratio of the mesh width to the height of the cell walls ranges between 1:4 and 1:0.1, and (f) placing a substrate on the extended honeycomb structure as obtained in step (e) such that the substrate extends to the final surface level. 21. A method according to claim 20, wherein the honeycomb structure is provided with a filling material after step (e) has been carried out, and the filling material is filled into the cell openings. 22. A method according to claim 21, wherein the filling material is selected from a group consisting of minerals, natural and synthetic particles, or a combination thereof. 23. A method according to claim 20, wherein an additional step (g) is carried out prior to step (f), said step (g) comprising: (g) overlaying the extended honeycomb structure as obtained in step (e) with an intermediate layer.