Ground water level raising - using slit trench degassed by initial bottom supply of water

摘要

(A) in the raising of ground water level by introducing seepage water via horizontal piping in a closed filled slit trench, the novelty is that initially seepage water is allowed to flow into the lower region of the trench until the water level has reached at least approximately the upper region so that the trench filling is simultaneously degassed. (B) equipment for carrying out the process is also claimed. ADVANTAGE - The initial water filling stage has a backflushing action, which removes any accumulated dirt particles from the trench filling.