Radial well has some attractive features for certain locations. Massive discharge, having a long utilizable life, great ability for control groundwater, high speed for de-groundwater level, controlling large area, convenient management, easy repair, less land occupation are factors in favor of a radial well. It is suitable a type of well for exploiting groundwater, carrying out canal-well conjunctive irrigation, combining irrigation and drainage, achieving jointing surface water and groundwater, comprehensi...