초록 ▼

In a system for dispersing stormwaters beneath the earth surface, a pair of arch shaped corrugated molded plastic chambers lie parallel each to the other upon a bed of gravel and are covered with soil. A bridge cover spans the space between the sidewalls of the adjacent chambers, to keep soil above

In a system for dispersing stormwaters beneath the earth surface, a pair of arch shaped corrugated molded plastic chambers lie parallel each to the other upon a bed of gravel and are covered with soil. A bridge cover spans the space between the sidewalls of the adjacent chambers, to keep soil above from entering. Abutting base flanges establish the chamber spacing which fits the bridge cover and also protect the gravel at the bottom of the space from erosion. Stormwater is delivered to the space, to then flow through sidewall perforations into the chambers' interiors where it is stored and gradually dispersed into the earth. Debris settles in the pocket at the bottom of the space and is removed by a perforated pipe lying in the space. Chambers have high aspect ratios, of 0.8 to 1 or more, and steep sidewall angles, of less than 15 degrees.

대표청구항 ▼

[ We claim:] [1.] An assembly for receiving and dispersing liquid when buried beneath soil, comprising:a pair of molded chambers, each chamber having an arch shaped cross section defining a chamber hollow interior, a base, a top, and opposing sidewalls running from the base to the top;the chambers l

[ We claim:] [1.] An assembly for receiving and dispersing liquid when buried beneath soil, comprising:a pair of molded chambers, each chamber having an arch shaped cross section defining a chamber hollow interior, a base, a top, and opposing sidewalls running from the base to the top;the chambers lying adjacent and parallel to each other on an essentially flat surface, the adjacent sidewalls of the chamber pair shaped and positioned relative to each other to create a space therebetween;means for enabling liquid flow between the interior of at least one chamber and said space;each chamber having an impost on its exterior surface for supporting a bridge cover; and,a bridge cover spanning said space, running from the impost of one chamber to the impost of the other chamber, for preventing soil from locally entering said space from above when the assembly is buried in soil.