The Grid That Doubles the Strength of the Ground

13 insights saved from this video by @culture

@culture· Systems & Infrastructure
A geocell-reinforced track stayed remarkably stable at the highest tested speed, with no washboarding after many rotations.
@culture· Systems & Infrastructure
A very small amount of plastic completely transformed the granular system when its geometry provided effective confinement.
@culture· Systems & Infrastructure
The U.S. Army Corps of Engineers pioneered geocell technology in the 1970s for roads and landing strips on Vietnam’s soft soils.
@culture· Systems & Infrastructure
Geocells are three-dimensional honeycomb networks made from welded plastic strips that confine fill instead of merely touching it.
@culture· Systems & Infrastructure
In some projects, geocells make unpaved roads strong and low-maintenance enough to eliminate asphalt pavement.
@culture· Systems & Infrastructure
Geocells carry part of the load, allowing cheaper, less ideal, or locally available fill instead of precisely graded crushed rock.
@culture· Systems & Infrastructure
Geocell confinement stops soil particles from shearing and shifting, letting neighboring cells act together like a broad foundation.
@culture· Systems & Infrastructure
Geocells reduce excavation, allow local or less-specialized road-base materials, shorten hauling, and cut unsuitable soil transported away.
@culture· Systems & Infrastructure
Geocells add structural strength that can substantially reduce the thickness required for a road-base layer.
@culture· Systems & Infrastructure
A wide plywood sheet keeps someone from sinking in mud just as a broad footing distributes structural weight.
@culture· Systems & Infrastructure
Soil bearing failure happens when particle friction loses to pressure, making soil shear downward, outward, and upward beneath structures.
@culture· Systems & Infrastructure
Wide footings and soil replacement work, but they can demand expensive materials, extensive hauling, and massive excavation.
@culture· Systems & Infrastructure
The simplest way to prevent soil failure is to spread a load over a larger area.

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