Through Geodrain method using the prefabricated horizontal drainage(SBD) material,
- The sand blanket is not necessary
- Reduce consolidation delays
- Biodegradable drain materials can be used
The difference between the conventional PVD method
and Geodrain method
Substitute for the sand blanket
- Trafficability = The regular sand is sufficient
- Horizontal water discharge capability = Prefabricated horizontal drainage(SBD) materials （SBDrain、BSB drain）
The Prefabricated horizontal drainage(SBD) material reduces
consolidation delays caused by the sand blanket
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