초록

An improved water retention/detention system is provided which is comprised of a chamber formed by stabilized porous perimeter means and a roof, with support means within the chamber, and a liner effective to prevent particulates from passing into said chamber and porous perimeter means.

대표청구항 ▼

I claim: 1. A water retention/detention chamber comprised of an open chamber formed by stabilized porous aggregate perimeter means and a roof, said roof spanning said chamber and supported by said perimeter means and by support means within the chamber, means for introducing water into said chamber

I claim: 1. A water retention/detention chamber comprised of an open chamber formed by stabilized porous aggregate perimeter means and a roof, said roof spanning said chamber and supported by said perimeter means and by support means within the chamber, means for introducing water into said chamber and means for passing water from said chamber, and liner means for preventing passage of particulate matter into said chamber and porous aggregate perimeter means, wherein said perimeter means are disposed inside a perimeter of said liner means, and wherein said roof does not extend beyond said perimeter means. 2. The system of claim 1 wherein the stabilized porous aggregate perimeter means are mechanically stabilized earth walls or reinforced soil slopes. 3. The system of claim 1 wherein the support means within said system comprise mechanically stabilized earth structures. 4. The system of claim 1 wherein the roof is a deck roof. 5. The system of claim 1 wherein the roof is an arch roof. 6. The system of claim 1 wherein the said liner means is at least one of a geotextile, a geomembrane, a geosynthetic clay, or a spray on coating. 7. The system of claim 1 wherein the said perimeter means are stabilized with geosynthetic materials. 8. The system of claim 1 wherein the said support means are stabilized with geosynthetic materials. 9. The system of claim 1 wherein the stabilized porous aggregate perimeter means comprise stabilized porous aggregate having a particle size of at least 2 mm with no more than a trace of finer particles. 10. The system of claim 1 wherein means for water filtration is constructed within said chamber. 11. The system of claim 1, wherein the said perimeter means are stabilized with gabions. 12. The system of claim 1, wherein the said support means are stabilized with gabions. 13. A water retention/detention system, comprising: a perimeter support structure comprising a stabilized porous aggregate and stabilized by geosynthetic materials; a roof at least partially supported by the perimeter support structure, the perimeter support structure and the roof defining a chamber therebetween; and at least one inlet configured to allow water to enter into the chamber. 14. A water retention/detention system, comprising: a perimeter support structure comprising a stabilized porous aggregate; a roof at least partially supported by the perimeter support structure, the perimeter support structure and the roof defining a chamber therebetween; at least one roof support disposed within the chamber, wherein the at least one roof support is stabilized by geosynthetic materials; and at least one inlet configured to allow water to enter into the chamber. 15. A water retention/detention system, comprising: a perimeter support structure comprising a stabilized porous aggregate; a roof at least partially supported by the perimeter support structure, the perimeter support structure and the roof defining an open chamber therebetween, wherein the roof spans the open chamber; at least one inlet configured to allow water to enter into the chamber; and a liner configured to prevent passage of particulate matter into the chamber and the perimeter support structure, wherein the perimeter support structure is disposed inside a perimeter of the liner, and wherein the roof does not extend beyond the perimeter support structure. 16. The system of claim 15, wherein the stabilized porous aggregate has a particle size of at least 2 mm and containing not more than up to 5% by weight of fines. 17. The system of claim 15, wherein the perimeter support structure is stabilized by at least one of a mechanically stabilized earth wall or a reinforced soil slope. 18. The system of claim 15, wherein the perimeter support structure is stabilized by geosynthetic materials. 19. The system of claim 15, wherein the perimeter support structure is stabilized with one or more gabions. 20. The system of claim 15, wherein the roof comprises at least one of metal, concrete, or asphalt. 21. The system of claim 15, further comprising: at least one roof support disposed within the chamber. 22. The system of claim 21, wherein the at least one roof support is stabilized with inclusions. 23. The system of claim 21, wherein the roof support further comprises: at least one of a column or a pier. 24. The system of claim 21, wherein the roof support is comprised of a stabilized porous aggregate having a particle size of at least 2 mm and containing not more than up to 5% by weight of fines. 25. The system of claim 24, wherein the roof support further comprises a facing system configured to prevent the porous aggregate from entering the chamber. 26. The chamber of claim 21, wherein the roof support comprises at least one of a mechanically stabilized earth structure or a reinforced soil slope structure. 27. The system of claim 21, wherein at least one roof support is stabilized by geosynthetic materials. 28. The system of claim 21, wherein at least one roof support is stabilized with one or more gabions. 29. The system of claim 21, wherein the roof support is stabilized by at least one of metal or concrete. 30. The system of claim 15, wherein the liner further restricts the movement of water into or out of the chamber and the perimeter support structure. 31. The system of claim 15, wherein the liner comprises at least one of a geotextile, a geomembrane, a geosynthetic clay, or a spray on coating. 32. The system of claim 15, wherein the perimeter support structure further comprises a facing system configured to prevent backfill from entering the chamber. 33. The system of claim 15, further comprising: a bearing pad disposed between the perimeter support structure and the roof. 34. The system of claim 15, further comprising: an outlet configured to allow water to exit from the chamber. 35. The system of claim 15, wherein the inlet structure further comprises a material configured to prevent particulate from entering the chamber. 36. The system of claim 15, further comprising: a filtration system for providing filtration of retained water. 37. A water retention/detention chamber comprised of a chamber formed by stabilized porous perimeter means and a roof, said roof supported by said perimeter means and by support means within the chamber, wherein the said support means are stabilized with gabions, means for introducing water into said chamber and means for passing water from said chamber, and liner means for preventing passage of particulate matter into said chamber and porous perimeter means. 38. The system of claim 1, wherein the stabilized porous aggregate perimeter means are stabilized with inclusions. 39. The system of claim 1, wherein the support means are stabilized with inclusions. 40. The system of claim 15, wherein the perimeter support structure is stabilized with inclusions. 41. A method of constructing an underground water retention/detention system, comprising: forming a perimeter support structure comprising a stabilized porous aggregate below a final surface grade; disposing a roof supported by the perimeter support structure, the perimeter support structure and the roof defining an open chamber therebetween having the roof spanning the open chamber; forming at least one inlet configured to allow water to enter into the chamber; and disposing a liner atop a floor of the open chamber and between the perimeter support structure and surrounding soil to prevent passage of particulate matter into the chamber and the perimeter support structure. 42. The method of claim 41, further comprising: disposing one or more columns or piers within the chamber and atop the liner to further support an interior portion of the roof. 43. The method of claim 41, wherein forming the at least one inlet further comprises: forming an inlet in the roof. 44. The method of claim 41, wherein forming the at least one inlet further comprises: forming an inlet through the liner. 45. The method of claim 41, wherein disposing the roof over and at least partially supported by the perimeter support structure further comprises: disposing the roof flush with the final surface grade. 46. The method of claim 41, wherein disposing the roof over and at least partially supported by the perimeter support structure further comprises: disposing the roof below the final surface grade. 47. The method of claim 41, further comprising: backfilling the top of the perimeter support structures outboard of the roof to a desired grade.