Design with cellular confinement and geosynthetics, from the haul road to the riverbank. Size a geocell-stabilised base over soft ground (Giroud & Han, AASHTO 93) and the mattress under a crane pad; hold topsoil on a steep slope with tendons and stakes; line a channel against its design shear; armour an eroding river bank against current and waves with a geobag toe apron; build a stepped geocell gravity wall; find the shape and fabric tension of a pumped geotextile sand tube and check a tube dike or breakwater; reinforce a steep slope with geogrid; and choose a filter geotextile. Every analysis has schematic diagrams and charts, the Drawings tab sets out conceptual A3 sheets with details, and the Construction tab animates the installation step by step.
Scope & limitations
Preliminary engineering tool with generic product properties. Use the tested values of the product you specify (cell modulus, junction strength, permissible shear, fabric strength and reduction factors) and check designs against your local standards.
What the geocell & geosynthetics studio does
Road applications each have their own page with a calculation sheet, checks, priced quantities, a drawing and a 3D model: working platforms for piling rigs and cranes (BRE 470, with geogrid), separation and subgrade stabilisation (AASHTO M288 survivability class, AOS and permittivity), flexible pavements with a geogrid- or geocell-reinforced base (AASHTO 93 layer coefficients, life-cycle cost), subsurface drainage with a geocomposite and edge drains (FHWA infiltration, transmissivity with reduction factors, time to drain), asphalt overlay interlayers against reflective cracking, basal reinforcement of embankments on soft clay (BS 8006-1 lateral sliding and a circular slip search) and piled embankments with a load transfer platform (Marston arching, catenary tension), and porous geocell pavements that store the design storm. The engineering drawings tab draws sixteen numbered-callout sections with notes and legends (SVG, PNG, A3 set); the 3D tab builds stepped cut-away models where every course, geotextile, geogrid and geocell is visible, with labels, an exploded view and an installation sequence. Thin layers are drawn with a stated vertical exaggeration.
Geocell load support compares unreinforced, geotextile, geogrid and geocell-stabilised bases over soft ground by Giroud & Han (2004), with the paved-road benefit through an AASHTO 93 layer coefficient ratio and the bearing of a geocell mattress under a footing or outrigger from the cell's hoop confinement. Slope protection checks the infilled cells on the slope by Koerner & Soong's veneer method and sizes the tendons and stakes; geocell gravity walls are checked for sliding, overturning, bearing and interlayer shear.
Water works size channel linings against HEC-15 bed and side shear with a comparison of permissible shear for grass, mats, geocells, riprap, geobags, blocks and concrete-filled cells; river-bank revetments are checked for current (Isbash, HEC-11) and waves (Pilarczyk) with a geobag falling apron for toe scour. Geotextile sand tubes are solved as a membrane under pumping pressure for their height, width and circumferential and axial tension against the factored fabric and seam strength, and tube dikes and breakwaters for sliding, overturning, bearing and wave stability.
Geogrid-reinforced slopes are searched with Bishop circles including the reinforcement, and the filter geotextile is selected by the FHWA retention, permeability and clogging criteria. Each technique has schematic diagrams, conceptual A3 drawings with details and an animated construction sequence; products are described generically so any system with the stated properties applies.