As the Michigan Department of Transportation (MDOT) worked to widen I-94 Eastbound & M-106 near Jackson, MI, they discovered that a coal mine was underneath one of the new ramp approaches and a new bridge. The coal mine posed a threat to the integrity of the structures above and increased the risk of sinkholes. MDOT engineers reached out to HUESKER for help.
A high strength geotextile was proposed to bridge the new roadway and prevent any sinkholes from developing. MDOT required no cutting of the material during the installation and that the material be delivered in 984 ft (300 meter) rolls. Stabilenka 200.45 was chosen because of its high tensile strength, and HUESKER’s ability to provide rolls at the requested length. The ultimate tensile strength required was 13,000 lb/ft and over 13,300 Square Yards of the material was used for the project.
Strengths of up to 2,800 kN/m, state-of-the-art weaving technology and proven resistance of up to 120 years, to chemical, physical and microbiological action have made Stabilenka one of the best performing woven reinforcement products anywhere in the world. Stabilenka offers an unbeatably cost-effective solution to the most stringent project requirements by combining three functions in a single product: reinforcement, separation, and filtration. Unlike many alternative products on the market, Stabilenka is manufactured from special multifilament yarn that allows the achievement of moduli exceeding 45,000 kN/m.
The details in MDOT’s plans required the material to be placed in two lifts, perpendicular to each other and with one foot of cover between the two layers. It took the team at Dan’s Excavating only a week to install and place the fill on the Stabilenka 200.45. This phase of the project was completed in May 2019, and the bridge and ramp are scheduled to be standing firmly over the coal mine by December 2019.