U-型块石路基
U-type crushed rock embankment
半填半挖路基
half-filled and half-dug embankment
cut-and-fill roadbed
半填半挖式路基
part-cut and part-fill subgrade
滨海软土路基
Roadbed by offshore soft clay
并合电路基底
hybrid circuit substructure
测路基密实度和含水量
Density and Moisture of Roads
层状砂井路基
layered subgrade with sand drains
车辆—轨道—路基系统
Vehicle-track-subgrade system
传统道碴路基
traditional ballast embankment
吹填筑路基
blowing and filling the subgrade