METHOD FOR REPAIRING DAMAGED WALL OF UNDERGROUND STRUCTURE Russian patent published in 1995 - IPC

FIELD: civil engineering. SUBSTANCE: method involves digging a trench at the side of ground sliding triangle. Then flexible sheets 4 are secured on the wall of underground structure 1 at points 3 deviated from the design position. Flexible sheets 4 have anchor devices 5 on the ends, positioned beyond the ground sliding triangle. Sheets 4 are suspended above the trench bottom with a clearance. Then the trench is backfilled with ground 7. Sheet 4 moves under the weight of the backfilled ground through the depth of the clearance thus restoring the design position 9 of wall 2. EFFECT: lower labor consumption and simpler technology of work. 4 dwg