答案:(1).S=(9.9 0.24)*(6 0.24)=63.27(m2)(2).中线长:(9.9 6)*2 (6-0.24)*2=43.32 m截面:0.126*0.365 (0.85-0.126)*0.24=0.2198 m2砖基础:43.32*0.2198=9.52 m3(3).外墙中线长:(9.9 6)*2=31.8 m内墙中线长:(6-1)*2=10 m垫层体积:(31.8 10)*0.1*1=4.18 m3(4).挖土中线长:(9.9 6)*2 (6-1)*2=41.8 m挖土深度:1.35-0.45=0.9 m挖土体积:41.8*1.0*0.9=37.62 m3