| 摘要 |
Disclosed is a method for injecting surface water into the soil beneath a ground area to improve drainage. The method includes drilling a series of vertical holes and inserting elongated pumping/drainage members into each hole extending downwardly into the soil. The pumping/drainage channel members comprise a cluster of integrally joined channel features each formed with a lengthwise extending slot opening. Surface water flows to the pumping/drainage member, enters the channels and drains down the pumping/drainage members to enhance water movement down into the soil to reduce runoff and help to recharge aquifers. Longer members are installed between shorter members in a repeating group cluster pattern to achieve more rapid injection of water deep into the subsoil. Water drains down and out of the shorter channel members percolating through the soil to an area around the upper end of the longer members to be purified by flowing through the soil in a lateral direction prior to flowing into the longer channel members. The longer channel members have upper ends installed to be a depth proximate the bottom ends of the shorter channel members, whereby soil moisture tends to enter the channels formed therein and drain downwardly through the channels to inject water into the soil around the channel member lower ends. |
