00000nz  a2200000n  4500
001  KSH2002004252
005  20021114113746
008  020202 n azknn|abn          |a a|a    | 
150  ▼a연약 지반[軟弱地盤]▲
550  ▼wg▼a지반[地盤]▲
550  ▼a압밀 침하[壓密沈下]▲
550  ▼a지반 침하[地盤浸下]▲