Patent ID: 8834061
Filing Date: 2014-09-16
Classification: E01C,E01F

Abstract:
1. A method of making a water permeable traffic bearing system comprising the steps of: preparing a compound water permeable base in contact with a native substrate; installing a drainage system having a plurality of elongate drainage joints over the prepared water permeable base, each of the drainage joints including an upper inlet side, and a lower outlet side contacting the water permeable base, and defining a plurality of vertical drainage conduits opening at each of the upper and lower sides and in fluid communication with a storage volume defined by the water permeable base; and forming a segmental mat having a plurality of water impermeable surface pads abutting the plurality of drainage joints, at least in part by filling voids extending horizontally between the drainage joints with a curable paving material, and curing the paving material within the voids, in contact with each of the water permeable base and the drainage joints; wherein the step of installing further includes tuning precipitation handling of the traffic bearing system, at least in part by setting a spacing and a number of the drainage joints responsive to, a water throughput factor of the traffic bearing system and a structural factor of the segmental mat; wherein tuning precipitation handling further includes balancing the water throughput factor with the structural factor, and the water throughput factor including a limit on transiting water through the system without overflowing and being based upon a water storage volume of the water permeable base and a water infiltration rate of the native substrate; wherein the step of preparing further includes placing a geotextile fabric in contact with the native substrate, placing a lower course of a large aggregate material over the geotextile fabric, and placing an upper course of a small aggregate material over the lower course, and wherein the water storage volume is defined by a void to solid ratio of each of the lower and upper courses; wherein the step of forming further includes passing rebar through apertures communicating between transverse sides of each one of the drainage joints, and filling the voids with poured concrete after passing rebar through the apertures to form the plurality of water impermeable surface pads.