A、<span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">稳定岩石地基的地段</span>
B、<span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">半挖半填的地基土地段</span>
C、<span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">中密的乐砂、粗砂地段</span>
D、<span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt">平坦开阔的中硬土地段</span>