x=12-5=7m H7=H中-xi中=3.460-7×2%=3.32m
如圖所示,已知HA=4.500m,a=1.237m,b=1.045m,試求hAB,Hi,HB。
松鋪厚度=拋高系數(shù)×壓實厚度=1.3×25=32.5cm