The sealing system is composed of a vacuum membrane, a pressure membrane sealing ditch, and a mud stirring and sealing wall, and the pressure membrane ditch is backfilled with clay and back-pressure sealed.
The sealing system consists of a vacuum film, a pressure film sealing ditch, a mud stirring sealwall, and a backfill seal of backfill clay in the membrane trench.
The sealing system is composed of vacuum membrane, pressure membrane sealing ditch and slurry mixing sealing wall. The pressure membrane ditch is backfilled with clay for back pressure sealing.<br>