De que é feito qanat
An underground channel that collects groundwater by gravity.
- Mother well shaft — tem como parte. A vertical shaft down to the aquifer.
- Underground water tunnel — tem como parte. A gently sloping tunnel through which water flows to the fields.
- Row of vertical access shafts — tem como parte. A chain of shafts for digging and ventilation.
- Gravity flow — utiliza. Water flows by gravity.
- Argila — é feito de. Weak sections of a qanat were reinforced with clay rings.