Soft Foundation Reinforcement for Mine Temporary Access Road (HDPE cellular confinement system)
Soft Foundation Reinforcement for Mine Temporary Access Road (HDPE cellular confinement system)
1. Project Overview: Access road to mining area. The subgrade consists of saturated clay. The pavement turns muddy and slurry-prone in rainy seasons, resulting in vehicle bogging. The original solution incurred an annual maintenance cost of up to 50,000 US dollars.
2. Selected Specification: HDPE geocell, height 100mm
3. Construction Scheme: Level the base course, directly lay HDPE geocell, fill with local crushed stone, and compact in layers.
4. Engineering Performance: Continuous monitoring across two rainy seasons shows pavement rutting ＜20 mm; annual maintenance cost reduced by 40,000 US dollars; payback period ＜12 months. Local material utilization greatly cuts the cost of hauled-in fill materials.
